Attachment 318080 Details for Bug 464773 – same problem with 2.6.27-0.352.rc7.git1.fc10.ppc64

same problem with 2.6.27-0.352.rc7.git1.fc10.ppc64

dmesg (text/plain), 99.32 KB, created by Adam Tkac on 2008-09-30 14:36:45 UTC

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Creator: Adam Tkac

Created: 2008-09-30 14:36:45 UTC

Size: 99.32 KB

patch

obsolete

>Phyp-dump not supported on this hardware
>Using pSeries machine description
>Page orders: linear mapping = 24, virtual = 12, io = 12, vmemmap = 12
>Found initrd at 0xc000000003100000:0xc00000000347e000
>console [udbg0] enabled
>Partition configured for 4 cpus.
>CPU maps initialized for 2 threads per core
> (thread shift is 1)
>Starting Linux PPC64 #1 SMP Tue Sep 23 21:16:21 EDT 2008
>-----------------------------------------------------
>ppc64_pft_size                = 0x18
>physicalMemorySize            = 0x30000000
>htab_hash_mask                = 0x1ffff
>-----------------------------------------------------
>Initializing cgroup subsys cpuset
>Initializing cgroup subsys cpu
>Linux version 2.6.27-0.352.rc7.git1.fc10.ppc64 (mockbuild@ppc4.fedora.phx.redhat.com) (gcc version 4.3.2 20080917 (Red Hat 4.3.2-4) (GCC) ) #1 SMP Tue Sep 23 21:16:21 EDT 2008
>[boot]0012 Setup Arch
>Node 0 Memory: 0x0-0xc000000
>Node 1 Memory: 0xc000000-0x30000000
>PCI host bridge /pci@800000020000003  ranges:
>  IO 0x000003fe00700000..0x000003fe007fffff -> 0x0000000000000000
> MEM 0x00000401c0000000..0x00000401ffffffff -> 0x00000000c0000000 
>EEH: PCI Enhanced I/O Error Handling Enabled
>PPC64 nvram contains 7168 bytes
>Using shared processor idle loop
>Zone PFN ranges:
>  DMA      0x00000000 -> 0x00030000
>  Normal   0x00030000 -> 0x00030000
>Movable zone start PFN for each node
>early_node_map[2] active PFN ranges
>    0: 0x00000000 -> 0x0000c000
>    1: 0x0000c000 -> 0x00030000
>On node 0 totalpages: 49152
>  DMA zone: 48000 pages, LIFO batch:15
>On node 1 totalpages: 147456
>  DMA zone: 144000 pages, LIFO batch:31
>[boot]0015 Setup Done
>Built 2 zonelists in Node order, mobility grouping on.  Total pages: 192000
>Policy zone: DMA
>Kernel command line: ro console=hvc0 root=UUID=bd292de0-344c-44ab-9c98-069967e63079 
>[boot]0020 XICS Init
>[boot]0021 XICS Done
>pic: no ISA interrupt controller
>PID hash table entries: 4096 (order: 12, 32768 bytes)
>time_init: decrementer frequency = 188.049000 MHz
>time_init: processor frequency   = 1502.496000 MHz
>clocksource: timebase mult[154563a] shift[22] registered
>clockevent: decrementer mult[3023] shift[16] cpu[0]
>Console: colour dummy device 80x25
>console handover: boot [udbg0] -> real [hvc0]
>Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
>... MAX_LOCKDEP_SUBCLASSES:    8
>... MAX_LOCK_DEPTH:          48
>... MAX_LOCKDEP_KEYS:        8191
>... CLASSHASH_SIZE:           4096
>... MAX_LOCKDEP_ENTRIES:     8192
>... MAX_LOCKDEP_CHAINS:      16384
>... CHAINHASH_SIZE:          8192
> memory used by lock dependency info: 4095 kB
> per task-struct memory footprint: 2688 bytes
>Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
>Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
>freeing bootmem node 0
>freeing bootmem node 1
>Memory: 726384k/786432k available (10404k kernel code, 60048k reserved, 1016k data, 8338k bss, 1956k init)
>SLUB: Genslabs=13, HWalign=128, Order=0-3, MinObjects=0, CPUs=4, Nodes=16
>Calibrating delay loop... 373.76 BogoMIPS (lpj=186880)
>Security Framework initialized
>SELinux:  Initializing.
>SELinux:  Starting in permissive mode
>Mount-cache hash table entries: 256
>Initializing cgroup subsys ns
>Initializing cgroup subsys cpuacct
>Initializing cgroup subsys devices
>clockevent: decrementer mult[3023] shift[16] cpu[1]
>Processor 1 found.
>Brought up 2 CPUs
>Node 0 CPUs: 0-1
>Node 1 CPUs:
>sizeof(vma)=176 bytes
>sizeof(page)=96 bytes
>sizeof(inode)=1088 bytes
>sizeof(dentry)=256 bytes
>sizeof(ext3inode)=1488 bytes
>sizeof(buffer_head)=104 bytes
>sizeof(skbuff)=232 bytes
>sizeof(task_struct)=9664 bytes
>CPU0 attaching sched-domain:
> domain 0: span 0-1 level SIBLING
>  groups: 0 1
>  domain 1: span 0-1 level NODE
>   groups: 0-1
>CPU1 attaching sched-domain:
> domain 0: span 0-1 level SIBLING
>  groups: 1 0
>  domain 1: span 0-1 level NODE
>   groups: 0-1
>khelper used greatest stack depth: 10176 bytes left
>net_namespace: 1680 bytes
>NET: Registered protocol family 16
>IBM eBus Device Driver
>PCI: Probing PCI hardware
>IOMMU table initialized, virtual merging enabled
>pci 0000:c0:01.0: supports D1
>pci 0000:c0:01.0: supports D2
>pci 0000:c0:01.0: PME# supported from D0 D1 D2 D3hot
>pci 0000:c0:01.0: PME# disabled
>khelper used greatest stack depth: 10000 bytes left
>PCI: Probing PCI hardware done
>SCSI subsystem initialized
>libata version 3.00 loaded.
>usbcore: registered new interface driver usbfs
>usbcore: registered new interface driver hub
>usbcore: registered new device driver usb
>khelper used greatest stack depth: 9936 bytes left
>NetLabel: Initializing
>NetLabel:  domain hash size = 128
>NetLabel:  protocols = UNLABELED CIPSOv4
>NetLabel:  unlabeled traffic allowed by default
>Switched to high resolution mode on CPU 0
>Switched to high resolution mode on CPU 1
>tracer: 1286 pages allocated for 65536 entries of 80 bytes
>   actual entries 65586
>NET: Registered protocol family 2
>IP route cache hash table entries: 32768 (order: 6, 262144 bytes)
>TCP established hash table entries: 131072 (order: 9, 2097152 bytes)
>TCP bind hash table entries: 65536 (order: 10, 4194304 bytes)
>TCP: Hash tables configured (established 131072 bind 65536)
>TCP reno registered
>NET: Registered protocol family 1
>checking if image is initramfs... it is
>Freeing initrd memory: 3576k freed
>RTAS daemon started
>RTAS: event: 7, Type: EPOW, Severity: 2
>audit: initializing netlink socket (disabled)
>type=2000 audit(1222784800.181:1): initialized
>HugeTLB registered 16 MB page size, pre-allocated 0 pages
>khelper used greatest stack depth: 9888 bytes left
>VFS: Disk quotas dquot_6.5.1
>Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
>msgmni has been set to 1425
>SELinux:  Registering netfilter hooks
>Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
>io scheduler noop registered
>io scheduler anticipatory registered
>io scheduler deadline registered
>io scheduler cfq registered (default)
>pci 0000:c0:01.0: Firmware left e100 interrupts enabled; disabling
>pci_hotplug: PCI Hot Plug PCI Core version: 0.5
>khelper used greatest stack depth: 9728 bytes left
>vio_register_driver: driver hvc_console registering
>HVSI: registered 0 devices
>Linux agpgart interface v0.103
>Serial: 8250/16550 driver4 ports, IRQ sharing enabled
>khelper used greatest stack depth: 9664 bytes left
>TX39/49 Serial driver version 1.11
>brd: module loaded
>loop: module loaded
>input: Macintosh mouse button emulation as /devices/virtual/input/input0
>Uniform Multi-Platform E-IDE driver
>Driver 'sd' needs updating - please use bus_type methods
>Driver 'sr' needs updating - please use bus_type methods
>ehci_hcd: block sizes: qh 160 qtd 96 itd 192 sitd 96
>ohci_hcd: 2006 August 04 USB 1.1 'Open' Host Controller (OHCI) Driver
>ohci_hcd: block sizes: ed 80 td 96
>USB Universal Host Controller Interface driver v3.0
>mice: PS/2 mouse device common for all mice
>platform ppc-rtc.0: rtc core: registered ppc_md as rtc0
>device-mapper: uevent: version 1.0.3
>device-mapper: ioctl: 4.14.0-ioctl (2008-04-23) initialised: dm-devel@redhat.com
>usbcore: registered new interface driver hiddev
>usbcore: registered new interface driver usbhid
>usbhid: v2.6:USB HID core driver
>TCP cubic registered
>Initializing XFRM netlink socket
>NET: Registered protocol family 17
>ieee80211: 802.11 data/management/control stack, git-1.1.13
>ieee80211: Copyright (C) 2004-2005 Intel Corporation <jketreno@linux.intel.com>
>ieee80211_crypt: registered algorithm 'NULL'
>registered taskstats version 1
>Freeing unused kernel memory: 1956k freed
>vio_register_driver: driver ibmvscsi registering
>ibmvscsi 30000003: SRP_VERSION: 16.a
>scsi0 : IBM POWER Virtual SCSI Adapter 1.5.8
>ibmvscsi 30000003: partner initialization complete
>ibmvscsi 30000003: sent SRP login
>ibmvscsi 30000003: SRP_LOGIN succeeded
>ibmvscsi 30000003: host srp version: 16.a, host partition PPC_VIO (2), OS 3, max io 262144
>ibmvscsi 30000004: SRP_VERSION: 16.a
>scsi1 : IBM POWER Virtual SCSI Adapter 1.5.8
>ibmvscsi 30000004: partner initialization complete
>ibmvscsi 30000004: sent SRP login
>ibmvscsi 30000004: SRP_LOGIN succeeded
>ibmvscsi 30000004: host srp version: 16.a, host partition PPC_VIO (2), OS 3, max io 262144
>scsi 0:0:1:0: Direct-Access     AIX      VDASD                 PQ: 0 ANSI: 3
>modprobe used greatest stack depth: 9136 bytes left
>scsi 1:0:1:0: Direct-Access     AIX      VDASD                 PQ: 0 ANSI: 3
>sd 0:0:1:0: [sda] 10485760 512-byte hardware sectors (5369 MB)
>sd 0:0:1:0: [sda] Write Protect is off
>sd 0:0:1:0: [sda] Mode Sense: 17 00 00 08
>sd 0:0:1:0: [sda] Cache data unavailable
>sd 0:0:1:0: [sda] Assuming drive cache: write through
>sd 0:0:1:0: [sda] 10485760 512-byte hardware sectors (5369 MB)
>sd 0:0:1:0: [sda] Write Protect is off
>sd 0:0:1:0: [sda] Mode Sense: 17 00 00 08
>sd 0:0:1:0: [sda] Cache data unavailable
>sd 0:0:1:0: [sda] Assuming drive cache: write through
> sda: sda1 sda2
>sd 0:0:1:0: [sda] Attached SCSI disk
>sd 0:0:1:0: Attached scsi generic sg0 type 0
>scsi_scan_0 used greatest stack depth: 7520 bytes left
>sd 1:0:1:0: [sdb] 33554432 512-byte hardware sectors (17180 MB)
>sd 1:0:1:0: [sdb] Write Protect is off
>sd 1:0:1:0: [sdb] Mode Sense: 17 00 00 08
>sd 1:0:1:0: [sdb] Cache data unavailable
>sd 1:0:1:0: [sdb] Assuming drive cache: write through
>sd 1:0:1:0: [sdb] 33554432 512-byte hardware sectors (17180 MB)
>sd 1:0:1:0: [sdb] Write Protect is off
>sd 1:0:1:0: [sdb] Mode Sense: 17 00 00 08
>sd 1:0:1:0: [sdb] Cache data unavailable
>sd 1:0:1:0: [sdb] Assuming drive cache: write through
> sdb: sdb1 sdb2 sdb3
>sd 1:0:1:0: [sdb] Attached SCSI disk
>sd 1:0:1:0: Attached scsi generic sg1 type 0
>kjournald starting.  Commit interval 5 seconds
>EXT3-fs: mounted filesystem with ordered data mode.
>SELinux: 8192 avtab hash slots, 105640 rules.
>SELinux: 8192 avtab hash slots, 105640 rules.
>SELinux:  8 users, 11 roles, 2455 types, 119 bools, 1 sens, 1024 cats
>SELinux:  73 classes, 105640 rules
>SELinux:  Completing initialization.
>SELinux:  Setting up existing superblocks.
>SELinux: initialized (dev dm-0, type ext3), uses xattr
>SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
>SELinux: initialized (dev selinuxfs, type selinuxfs), uses genfs_contexts
>SELinux: initialized (dev mqueue, type mqueue), uses transition SIDs
>SELinux: initialized (dev hugetlbfs, type hugetlbfs), uses genfs_contexts
>SELinux: initialized (dev devpts, type devpts), uses transition SIDs
>SELinux: initialized (dev inotifyfs, type inotifyfs), uses genfs_contexts
>SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
>SELinux: initialized (dev anon_inodefs, type anon_inodefs), uses genfs_contexts
>SELinux: initialized (dev pipefs, type pipefs), uses task SIDs
>SELinux: initialized (dev debugfs, type debugfs), uses genfs_contexts
>SELinux: initialized (dev sockfs, type sockfs), uses task SIDs
>SELinux: initialized (dev proc, type proc), uses genfs_contexts
>SELinux: initialized (dev bdev, type bdev), uses genfs_contexts
>SELinux: initialized (dev rootfs, type rootfs), uses genfs_contexts
>SELinux: initialized (dev sysfs, type sysfs), uses genfs_contexts
>type=1403 audit(1222784808.490:2): policy loaded auid=4294967295 ses=4294967295
>sh used greatest stack depth: 5808 bytes left
>SELinux: initialized (dev usbfs, type usbfs), uses genfs_contexts
>e100: Intel(R) PRO/100 Network Driver, 3.5.23-k4-NAPI
>e100: Copyright(c) 1999-2006 Intel Corporation
>e100 0000:c0:01.0: enabling device (0002 -> 0003)
>e100 0000:c0:01.0: PME# disabled
>e100: eth0: e100_probe: addr 0x401e8030000, irq 147, MAC addr 00:0d:60:0b:41:bb
>ip used greatest stack depth: 5504 bytes left
>readahead used greatest stack depth: 4912 bytes left
>device-mapper: multipath: version 1.0.5 loaded
>EXT3 FS on dm-0, internal journal
>SELinux: initialized (dev tmpfs, type tmpfs), uses transition SIDs
>kjournald starting.  Commit interval 5 seconds
>EXT3 FS on sdb2, internal journal
>EXT3-fs: mounted filesystem with ordered data mode.
>SELinux: initialized (dev sdb2, type ext3), uses xattr
>SELinux: initialized (dev binfmt_misc, type binfmt_misc), uses genfs_contexts
>NET: Registered protocol family 10
>lo: Disabled Privacy Extensions
>ADDRCONF(NETDEV_UP): eth0: link is not ready
>e100: eth0: e100_watchdog: link up, 100Mbps, full-duplex
>ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
>Loading iSCSI transport class v2.0-870.
>iscsi: registered transport (tcp)
>iscsi: registered transport (iser)
>RPC: Registered udp transport module.
>RPC: Registered tcp transport module.
>SELinux: initialized (dev rpc_pipefs, type rpc_pipefs), uses genfs_contexts
>fuse init (API version 7.9)
>SELinux: initialized (dev fusectl, type fusectl), uses genfs_contexts
>Bridge firewalling registered
>virbr0: Dropping NETIF_F_UFO since no NETIF_F_HW_CSUM feature.
>virbr0: starting userspace STP failed, starting kernel STP
>ip_tables: (C) 2000-2006 Netfilter Core Team
>nf_conntrack version 0.5.0 (6144 buckets, 24576 max)
>CONFIG_NF_CT_ACCT is deprecated and will be removed soon. Plase use
>nf_conntrack.acct=1 kernel paramater, acct=1 nf_conntrack module option or
>sysctl net.netfilter.nf_conntrack_acct=1 to enable it.
>SELinux: initialized (dev proc, type proc), uses genfs_contexts
>Not cloning cgroup for unused subsystem ns
>SELinux:  Context system_u:object_r:sysadm_home_ssh_t:s0 is not valid (left unmapped).
>type=1400 audit(1222784838.879:3): avc:  denied  { search } for  pid=2255 comm="sshd" name=".ssh" dev=dm-0 ino=600247 scontext=system_u:system_r:sshd_t:s0-s0:c0.c1023 tcontext=system_u:object_r:unlabeled_t:s0 tclass=dir
>
>=========================================================
>[ INFO: possible irq lock inversion dependency detected ]
>2.6.27-0.352.rc7.git1.fc10.ppc64 #1
>---------------------------------------------------------
>swapper/0 just changed the state of lock:
> (&hp->lock){+...}, at: [<c000000000392630>] .hvc_poll+0x70/0x314
>but this lock took another, hard-irq-unsafe lock in the past:
> (proc_subdir_lock){--..}
>
>and interrupts could create inverse lock ordering between them.
>
>
>other info that might help us debug this:
>no locks held by swapper/0.
>
>the first lock's dependencies:
>-> (&hp->lock){+...} ops: 0 {
>   initial-use  at:
>                        [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                        [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                        [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                        [<c0000000003922b0>] .hvc_get_by_index+0x60/0x118
>                        [<c0000000003923ac>] .hvc_open+0x44/0x158
>                        [<c000000000375bec>] .tty_open+0x25c/0x3c8
>                        [<c00000000017573c>] .chrdev_open+0x1cc/0x214
>                        [<c00000000016e980>] .__dentry_open+0x1ec/0x360
>                        [<c00000000016ec28>] .nameidata_to_filp+0x58/0x90
>                        [<c0000000001822e0>] .do_filp_open+0x430/0x964
>                        [<c00000000016e590>] .do_sys_open+0x94/0x15c
>                        [<c00000000016e71c>] .sys_open+0x4c/0x6c
>                        [<c0000000000097b4>] .init_post+0x60/0x1a0
>                        [<c0000000008406bc>] .kernel_init+0x338/0x364
>                        [<c00000000002f640>] .kernel_thread+0x4c/0x68
>   in-hardirq-W at:
>                        [<c0000000000d7300>] .__lock_acquire+0x684/0x1668
>                        [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                        [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                        [<c000000000392630>] .hvc_poll+0x70/0x314
>                        [<c000000000392be0>] .hvc_handle_interrupt+0x2c/0x5c
>                        [<c000000000111140>] .handle_IRQ_event+0x60/0xdc
>                        [<c0000000001138e0>] .handle_fasteoi_irq+0x118/0x1b8
>                        [<c00000000002f304>] .call_handle_irq+0x1c/0x2c
>                        [<c00000000000e1e4>] .do_IRQ+0x140/0x240
>                        [<c000000000004da8>] hardware_interrupt_entry+0x28/0x2c
>                        [<c000000000ab7d40>] mac80211_rcpid+0x8cf0/0x271f0
>                        [<c000000000014fb4>] .cpu_idle+0x13c/0x1f8
>                        [<c0000000005efa90>] .rest_init+0x8c/0xa8
>                        [<c000000000840f04>] .start_kernel+0x4b8/0x4e4
>                        [<c000000000008584>] .start_here_common+0x4c/0xc8
> }
> ... key      at: [<c00000000137745c>] __key.17658+0x0/0x8
> -> (ftrace_shutdown_lock){++..} ops: 0 {
>    initial-use  at:
>                          [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                          [<c00000000011d148>] .ftrace_record_ip+0x128/0x2c0
>                          [<c00000000000916c>] mcount_call+0x4/0x18
>                          [<c0000000000095bc>] .do_one_initcall+0x38/0x1d0
>                          [<c000000000840664>] .kernel_init+0x2e0/0x364
>                          [<c00000000002f640>] .kernel_thread+0x4c/0x68
>    in-hardirq-W at:
>                          [<c0000000000d7300>] .__lock_acquire+0x684/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                          [<c00000000011d148>] .ftrace_record_ip+0x128/0x2c0
>                          [<c00000000000916c>] mcount_call+0x4/0x18
>                          [<c0000000000d08f4>] .tick_nohz_update_jiffies+0x28/0x10c
>                          [<c0000000000a8fc0>] .irq_enter+0x98/0xb4
>                          [<c00000000002be98>] .timer_interrupt+0x128/0x1f8
>                          [<c000000000003728>] decrementer_common+0x128/0x180
>                          [<c000000000ab7d40>] mac80211_rcpid+0x8cf0/0x271f0
>                          [<c000000000014fb4>] .cpu_idle+0x13c/0x1f8
>                          [<c0000000005efa90>] .rest_init+0x8c/0xa8
>                          [<c000000000840f04>] .start_kernel+0x4b8/0x4e4
>                          [<c000000000008584>] .start_here_common+0x4c/0xc8
>    in-softirq-W at:
>                          [<c0000000000d7324>] .__lock_acquire+0x6a8/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                          [<c00000000011d148>] .ftrace_record_ip+0x128/0x2c0
>                          [<c00000000000916c>] mcount_call+0x4/0x18
>                          [<c0000000000b0b5c>] .run_timer_softirq+0x54/0x2a0
>                          [<c0000000000a9504>] .__do_softirq+0xe4/0x1c8
>                          [<c00000000002f2d8>] .call_do_softirq+0x14/0x24
>                          [<c00000000000e8b8>] .do_softirq+0xa0/0x104
>                          [<c0000000000a8ecc>] .irq_exit+0x7c/0xd8
>                          [<c00000000002bf34>] .timer_interrupt+0x1c4/0x1f8
>                          [<c000000000003728>] decrementer_common+0x128/0x180
>                          [<c000000000ab7d40>] mac80211_rcpid+0x8cf0/0x271f0
>                          [<c000000000014fb4>] .cpu_idle+0x13c/0x1f8
>                          [<c0000000005efa90>] .rest_init+0x8c/0xa8
>                          [<c000000000840f04>] .start_kernel+0x4b8/0x4e4
>                          [<c000000000008584>] .start_here_common+0x4c/0xc8
>  }
>  ... key      at: [<c000000000a5ed38>] ftrace_shutdown_lock+0x18/0x38
> ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c00000000011d148>] .ftrace_record_ip+0x128/0x2c0
>   [<c00000000000916c>] mcount_call+0x4/0x18
>   [<c000000000371e24>] .tty_buffer_request_room+0x40/0x1b4
>   [<c0000000003926c4>] .hvc_poll+0x104/0x314
>   [<c0000000003929a8>] .khvcd+0xd4/0x1e4
>   [<c0000000000c1fdc>] .kthread+0x90/0xe4
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
> -> (&tty->buf.lock){....} ops: 0 {
>    initial-use  at:
>                          [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                          [<c000000000371e30>] .tty_buffer_request_room+0x4c/0x1b4
>                          [<c0000000003926c4>] .hvc_poll+0x104/0x314
>                          [<c0000000003929a8>] .khvcd+0xd4/0x1e4
>                          [<c0000000000c1fdc>] .kthread+0x90/0xe4
>                          [<c00000000002f640>] .kernel_thread+0x4c/0x68
>  }
>  ... key      at: [<c000000001373988>] __key.21826+0x0/0x8
>  ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c00000000011d148>] .ftrace_record_ip+0x128/0x2c0
>   [<c00000000000916c>] mcount_call+0x4/0x18
>   [<c000000000371210>] .__tty_buffer_flush+0x20/0x98
>   [<c000000000373158>] .tty_buffer_flush+0x10c/0x144
>   [<c000000000374d3c>] .tty_ioctl+0xc30/0xd20
>   [<c000000000183b24>] .vfs_ioctl+0x70/0x10c
>   [<c000000000184070>] .do_vfs_ioctl+0x4b0/0x4e4
>   [<c000000000184128>] .sys_ioctl+0x84/0xcc
>   [<c0000000001beeb0>] .do_ioctl32_pointer+0x44/0x6c
>   [<c0000000001c4134>] .compat_sys_ioctl+0x400/0x488
>   [<c000000000008770>] syscall_exit+0x0/0x40
>
> ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c000000000371e30>] .tty_buffer_request_room+0x4c/0x1b4
>   [<c0000000003926c4>] .hvc_poll+0x104/0x314
>   [<c0000000003929a8>] .khvcd+0xd4/0x1e4
>   [<c0000000000c1fdc>] .kthread+0x90/0xe4
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
> -> (&q->lock){.+..} ops: 0 {
>    initial-use  at:
>                          [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eae70>] ._spin_lock_irq+0x68/0xc8
>                          [<c0000000005e6f34>] .wait_for_common+0x60/0x1c0
>                          [<c0000000005e71c8>] .wait_for_completion+0x24/0x38
>                          [<c0000000000c22d4>] .kthread_create+0xcc/0x124
>                          [<c0000000005f3b34>] .migration_call+0xd0/0x658
>                          [<c00000000086a7d0>] .migration_init+0x3c/0x9c
>                          [<c000000000009610>] .do_one_initcall+0x8c/0x1d0
>                          [<c000000000840414>] .kernel_init+0x90/0x364
>                          [<c00000000002f640>] .kernel_thread+0x4c/0x68
>    in-softirq-W at:
>                          [<c0000000000d7324>] .__lock_acquire+0x6a8/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                          [<c00000000008e098>] .complete+0x30/0x8c
>                          [<c0000000000be970>] .wakeme_after_rcu+0x2c/0x48
>                          [<c000000000114fac>] .__rcu_process_callbacks+0x21c/0x2f4
>                          [<c0000000001150d0>] .rcu_process_callbacks+0x4c/0x7c
>                          [<c0000000000a9504>] .__do_softirq+0xe4/0x1c8
>                          [<c00000000002f2d8>] .call_do_softirq+0x14/0x24
>                          [<c00000000000e8b8>] .do_softirq+0xa0/0x104
>                          [<c0000000000a8ecc>] .irq_exit+0x7c/0xd8
>                          [<c00000000002bf34>] .timer_interrupt+0x1c4/0x1f8
>                          [<c000000000003728>] decrementer_common+0x128/0x180
>                          [<c000000000ab7d40>] mac80211_rcpid+0x8cf0/0x271f0
>                          [<c000000000014fb4>] .cpu_idle+0x13c/0x1f8
>                          [<c0000000005efa90>] .rest_init+0x8c/0xa8
>                          [<c000000000840f04>] .start_kernel+0x4b8/0x4e4
>                          [<c000000000008584>] .start_here_common+0x4c/0xc8
>  }
>  ... key      at: [<c000000000bc4558>] __key.14279+0x0/0x8
>  -> (&rq->lock){++..} ops: 0 {
>     initial-use  at:
>                            [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                            [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                            [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                            [<c00000000008de68>] .rq_attach_root+0x38/0x1a4
>                            [<c00000000086aa8c>] .sched_init+0x25c/0x3e8
>                            [<c000000000840c28>] .start_kernel+0x1dc/0x4e4
>                            [<c000000000008584>] .start_here_common+0x4c/0xc8
>     in-hardirq-W at:
>                            [<c0000000000d7300>] .__lock_acquire+0x684/0x1668
>                            [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                            [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                            [<c00000000009d598>] .scheduler_tick+0x50/0x2f8
>                            [<c0000000000b14d0>] .update_process_times+0x70/0xa0
>                            [<c0000000000cfeec>] .tick_periodic+0xb0/0xdc
>                            [<c0000000000cff5c>] .tick_handle_periodic+0x44/0xcc
>                            [<c00000000002bee4>] .timer_interrupt+0x174/0x1f8
>                            [<c000000000003728>] decrementer_common+0x128/0x180
>                            [<c000000000abeb00>] mac80211_rcpid+0xfab0/0x271f0
>                            [<c0000000000d619c>] .debug_check_no_locks_freed+0x17c/0x1ac
>                            [<c000000000131398>] .free_hot_cold_page+0x138/0x28c
>                            [<c0000000001315f4>] .free_hot_page+0x30/0x48
>                            [<c000000000131680>] .__free_pages+0x74/0xa0
>                            [<c00000000060f3c8>] .__free_pages_bootmem+0x104/0x120
>                            [<c000000000871c70>] .free_all_bootmem_core+0x140/0x250
>                            [<c000000000871df8>] .free_all_bootmem_node+0x2c/0x44
>                            [<c000000000853b60>] .mem_init+0xac/0x244
>                            [<c000000000840dec>] .start_kernel+0x3a0/0x4e4
>                            [<c000000000008584>] .start_here_common+0x4c/0xc8
>     in-softirq-W at:
>                            [<c0000000000d7324>] .__lock_acquire+0x6a8/0x1668
>                            [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                            [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                            [<c000000000093658>] .tg_shares_up+0x114/0x218
>                            [<c00000000008d700>] .walk_tg_tree+0xf4/0x144
>                            [<c000000000097ab0>] .update_shares+0x64/0x80
>                            [<c000000000098108>] .rebalance_domains+0x1dc/0x664
>                            [<c0000000000985f0>] .run_rebalance_domains+0x60/0x160
>                            [<c0000000000a9504>] .__do_softirq+0xe4/0x1c8
>                            [<c00000000002f2d8>] .call_do_softirq+0x14/0x24
>                            [<c00000000000e8b8>] .do_softirq+0xa0/0x104
>                            [<c0000000000a8ecc>] .irq_exit+0x7c/0xd8
>                            [<c00000000002bf34>] .timer_interrupt+0x1c4/0x1f8
>                            [<c000000000003728>] decrementer_common+0x128/0x180
>                            [<c000000000ab7d40>] mac80211_rcpid+0x8cf0/0x271f0
>                            [<c000000000014fb4>] .cpu_idle+0x13c/0x1f8
>                            [<c0000000005efa90>] .rest_init+0x8c/0xa8
>                            [<c000000000840f04>] .start_kernel+0x4b8/0x4e4
>                            [<c000000000008584>] .start_here_common+0x4c/0xc8
>   }
>   ... key      at: [<c000000000b9cfa0>] __key.41338+0x0/0x8
>   -> (&vec->lock){.+..} ops: 0 {
>      initial-use  at:
>                              [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                              [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                              [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                              [<c000000000126478>] .cpupri_set+0x170/0x23c
>                              [<c000000000092c30>] .rq_online_rt+0xac/0xc8
>                              [<c00000000008ca54>] .set_rq_online+0xa8/0xd8
>                              [<c00000000008df9c>] .rq_attach_root+0x16c/0x1a4
>                              [<c00000000086aa8c>] .sched_init+0x25c/0x3e8
>                              [<c000000000840c28>] .start_kernel+0x1dc/0x4e4
>                              [<c000000000008584>] .start_here_common+0x4c/0xc8
>      in-softirq-W at:
>                              [<c0000000000d7324>] .__lock_acquire+0x6a8/0x1668
>                              [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                              [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                              [<c0000000001263b0>] .cpupri_set+0xa8/0x23c
>                              [<c000000000093c58>] .__enqueue_rt_entity+0x170/0x2c8
>                              [<c000000000094260>] .enqueue_rt_entity+0x6c/0x98
>                              [<c0000000000942c8>] .enqueue_task_rt+0x3c/0x70
>                              [<c00000000008be10>] .enqueue_task+0x7c/0xa4
>                              [<c00000000008bf98>] .activate_task+0x3c/0x60
>                              [<c000000000097d78>] .try_to_wake_up+0x2ac/0x3cc
>                              [<c000000000097f18>] .wake_up_process+0x20/0x34
>                              [<c0000000000983dc>] .rebalance_domains+0x4b0/0x664
>                              [<c0000000000985f0>] .run_rebalance_domains+0x60/0x160
>                              [<c0000000000a9504>] .__do_softirq+0xe4/0x1c8
>                              [<c00000000002f2d8>] .call_do_softirq+0x14/0x24
>                              [<c00000000000e8b8>] .do_softirq+0xa0/0x104
>                              [<c0000000000a8ecc>] .irq_exit+0x7c/0xd8
>                              [<c00000000002bf34>] .timer_interrupt+0x1c4/0x1f8
>                              [<c000000000003728>] decrementer_common+0x128/0x180
>                              [<c000000000ab7d40>] mac80211_rcpid+0x8cf0/0x271f0
>                              [<c000000000014fb4>] .cpu_idle+0x13c/0x1f8
>                              [<c0000000005efa90>] .rest_init+0x8c/0xa8
>                              [<c000000000840f04>] .start_kernel+0x4b8/0x4e4
>                              [<c000000000008584>] .start_here_common+0x4c/0xc8
>    }
>    ... key      at: [<c000000001248248>] __key.11639+0x0/0x38
>   ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c000000000126478>] .cpupri_set+0x170/0x23c
>   [<c000000000092c30>] .rq_online_rt+0xac/0xc8
>   [<c00000000008ca54>] .set_rq_online+0xa8/0xd8
>   [<c00000000008df9c>] .rq_attach_root+0x16c/0x1a4
>   [<c00000000086aa8c>] .sched_init+0x25c/0x3e8
>   [<c000000000840c28>] .start_kernel+0x1dc/0x4e4
>   [<c000000000008584>] .start_here_common+0x4c/0xc8
>
>   -> (&rt_b->rt_runtime_lock){.+..} ops: 0 {
>      initial-use  at:
>                              [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                              [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                              [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                              [<c000000000093d0c>] .__enqueue_rt_entity+0x224/0x2c8
>                              [<c000000000094260>] .enqueue_rt_entity+0x6c/0x98
>                              [<c0000000000942c8>] .enqueue_task_rt+0x3c/0x70
>                              [<c00000000008be10>] .enqueue_task+0x7c/0xa4
>                              [<c00000000008bf98>] .activate_task+0x3c/0x60
>                              [<c000000000097d78>] .try_to_wake_up+0x2ac/0x3cc
>                              [<c000000000097f18>] .wake_up_process+0x20/0x34
>                              [<c0000000005f3bd0>] .migration_call+0x16c/0x658
>                              [<c00000000086a7fc>] .migration_init+0x68/0x9c
>                              [<c000000000009610>] .do_one_initcall+0x8c/0x1d0
>                              [<c000000000840414>] .kernel_init+0x90/0x364
>                              [<c00000000002f640>] .kernel_thread+0x4c/0x68
>      in-softirq-W at:
>                              [<c0000000000d7324>] .__lock_acquire+0x6a8/0x1668
>                              [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                              [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                              [<c000000000093d0c>] .__enqueue_rt_entity+0x224/0x2c8
>                              [<c000000000094260>] .enqueue_rt_entity+0x6c/0x98
>                              [<c0000000000942c8>] .enqueue_task_rt+0x3c/0x70
>                              [<c00000000008be10>] .enqueue_task+0x7c/0xa4
>                              [<c00000000008bf98>] .activate_task+0x3c/0x60
>                              [<c000000000097d78>] .try_to_wake_up+0x2ac/0x3cc
>                              [<c000000000097f18>] .wake_up_process+0x20/0x34
>                              [<c0000000000983dc>] .rebalance_domains+0x4b0/0x664
>                              [<c0000000000985f0>] .run_rebalance_domains+0x60/0x160
>                              [<c0000000000a9504>] .__do_softirq+0xe4/0x1c8
>                              [<c00000000002f2d8>] .call_do_softirq+0x14/0x24
>                              [<c00000000000e8b8>] .do_softirq+0xa0/0x104
>                              [<c0000000000a8ecc>] .irq_exit+0x7c/0xd8
>                              [<c00000000002bf34>] .timer_interrupt+0x1c4/0x1f8
>                              [<c000000000003728>] decrementer_common+0x128/0x180
>                              [<c000000000ab7d40>] mac80211_rcpid+0x8cf0/0x271f0
>                              [<c000000000014fb4>] .cpu_idle+0x13c/0x1f8
>                              [<c0000000005efa90>] .rest_init+0x8c/0xa8
>                              [<c000000000840f04>] .start_kernel+0x4b8/0x4e4
>                              [<c000000000008584>] .start_here_common+0x4c/0xc8
>    }
>    ... key      at: [<c000000000b9ad28>] __key.32852+0x0/0x8
>    -> (&cpu_base->lock){++..} ops: 0 {
>       initial-use  at:
>                                [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                                [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                                [<c0000000005eae70>] ._spin_lock_irq+0x68/0xc8
>                                [<c0000000000c6008>] .run_hrtimer_pending+0x4c/0x1b4
>                                [<c0000000000c6998>] .hrtimer_run_pending+0x170/0x1a4
>                                [<c0000000000b0b70>] .run_timer_softirq+0x68/0x2a0
>                                [<c0000000000a9504>] .__do_softirq+0xe4/0x1c8
>                                [<c00000000002f2d8>] .call_do_softirq+0x14/0x24
>                                [<c00000000000e8b8>] .do_softirq+0xa0/0x104
>                                [<c0000000000a8ecc>] .irq_exit+0x7c/0xd8
>                                [<c00000000002bf34>] .timer_interrupt+0x1c4/0x1f8
>                                [<c000000000003728>] decrementer_common+0x128/0x180
>                                [<c000000000abeb00>] mac80211_rcpid+0xfab0/0x271f0
>                                [<c0000000000d619c>] .debug_check_no_locks_freed+0x17c/0x1ac
>                                [<c000000000131398>] .free_hot_cold_page+0x138/0x28c
>                                [<c0000000001315f4>] .free_hot_page+0x30/0x48
>                                [<c000000000131680>] .__free_pages+0x74/0xa0
>                                [<c00000000060f3c8>] .__free_pages_bootmem+0x104/0x120
>                                [<c000000000871c70>] .free_all_bootmem_core+0x140/0x250
>                                [<c000000000871df8>] .free_all_bootmem_node+0x2c/0x44
>                                [<c000000000853b60>] .mem_init+0xac/0x244
>                                [<c000000000840dec>] .start_kernel+0x3a0/0x4e4
>                                [<c000000000008584>] .start_here_common+0x4c/0xc8
>       in-hardirq-W at:
>                                [<c0000000000d7300>] .__lock_acquire+0x684/0x1668
>                                [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                                [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                                [<c0000000000c664c>] .hrtimer_run_queues+0x178/0x238
>                                [<c0000000000b1434>] .run_local_timers+0x20/0x4c
>                                [<c0000000000b14a8>] .update_process_times+0x48/0xa0
>                                [<c0000000000cfeec>] .tick_periodic+0xb0/0xdc
>                                [<c0000000000cff5c>] .tick_handle_periodic+0x44/0xcc
>                                [<c00000000002bee4>] .timer_interrupt+0x174/0x1f8
>                                [<c000000000003728>] decrementer_common+0x128/0x180
>                                [<c000000000abd2c8>] mac80211_rcpid+0xe278/0x271f0
>                                [<c000000000167b90>] .kmem_cache_alloc+0xd0/0x128
>                                [<c00000000009ee28>] .copy_process+0xe8/0x121c
>                                [<c0000000000a00a0>] .do_fork+0x144/0x33c
>                                [<c000000000012ca0>] .sys_clone+0x90/0xc0
>                                [<c0000000000089ac>] .ppc_clone+0x8/0xc
>                                [<0000000000000001>] 0x1
>                                [<c0000000000c1e70>] .kthreadd+0x11c/0x1f8
>                                [<c00000000002f640>] .kernel_thread+0x4c/0x68
>       in-softirq-W at:
>                                [<c0000000000d7324>] .__lock_acquire+0x6a8/0x1668
>                                [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                                [<c0000000005eae70>] ._spin_lock_irq+0x68/0xc8
>                                [<c0000000000c6008>] .run_hrtimer_pending+0x4c/0x1b4
>                                [<c0000000000c6998>] .hrtimer_run_pending+0x170/0x1a4
>                                [<c0000000000b0b70>] .run_timer_softirq+0x68/0x2a0
>                                [<c0000000000a9504>] .__do_softirq+0xe4/0x1c8
>                                [<c00000000002f2d8>] .call_do_softirq+0x14/0x24
>                                [<c00000000000e8b8>] .do_softirq+0xa0/0x104
>                                [<c0000000000a8ecc>] .irq_exit+0x7c/0xd8
>                                [<c00000000002bf34>] .timer_interrupt+0x1c4/0x1f8
>                                [<c000000000003728>] decrementer_common+0x128/0x180
>                                [<c000000000abeb00>] mac80211_rcpid+0xfab0/0x271f0
>                                [<c0000000000d619c>] .debug_check_no_locks_freed+0x17c/0x1ac
>                                [<c000000000131398>] .free_hot_cold_page+0x138/0x28c
>                                [<c0000000001315f4>] .free_hot_page+0x30/0x48
>                                [<c000000000131680>] .__free_pages+0x74/0xa0
>                                [<c00000000060f3c8>] .__free_pages_bootmem+0x104/0x120
>                                [<c000000000871c70>] .free_all_bootmem_core+0x140/0x250
>                                [<c000000000871df8>] .free_all_bootmem_node+0x2c/0x44
>                                [<c000000000853b60>] .mem_init+0xac/0x244
>                                [<c000000000840dec>] .start_kernel+0x3a0/0x4e4
>                                [<c000000000008584>] .start_here_common+0x4c/0xc8
>     }
>     ... key      at: [<c000000000bc4598>] __key.18617+0x0/0x8
>     ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c00000000011d148>] .ftrace_record_ip+0x128/0x2c0
>   [<c00000000000916c>] mcount_call+0x4/0x18
>   [<c0000000000c7048>] .__timer_stats_hrtimer_set_start_info+0x28/0x78
>   [<c0000000000c721c>] .hrtimer_start+0x184/0x218
>   [<c0000000000d0eac>] .tick_setup_sched_timer+0x138/0x19c
>   [<c0000000000c6944>] .hrtimer_run_pending+0x11c/0x1a4
>   [<c0000000000b0b70>] .run_timer_softirq+0x68/0x2a0
>   [<c0000000000a9504>] .__do_softirq+0xe4/0x1c8
>   [<c00000000002f2d8>] .call_do_softirq+0x14/0x24
>   [<c00000000000e8b8>] .do_softirq+0xa0/0x104
>   [<c0000000000a8ecc>] .irq_exit+0x7c/0xd8
>   [<c00000000002bf34>] .timer_interrupt+0x1c4/0x1f8
>   [<c000000000003728>] decrementer_common+0x128/0x180
>   [<c00000000018efe0>] .alloc_inode+0x1e4/0x274
>   [<c00000000018f0bc>] .new_inode+0x4c/0xf4
>   [<c00000000021da30>] .debugfs_mknod+0x64/0x198
>   [<c00000000021dd08>] .debugfs_create_file+0x1a4/0x2bc
>   [<c00000000086ffc8>] .ftrace_init_debugfs+0x44/0x148
>   [<c000000000009610>] .do_one_initcall+0x8c/0x1d0
>   [<c000000000840664>] .kernel_init+0x2e0/0x364
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
>    ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c0000000000c6cf0>] .lock_hrtimer_base+0x44/0x98
>   [<c0000000000c7100>] .hrtimer_start+0x68/0x218
>   [<c000000000093d68>] .__enqueue_rt_entity+0x280/0x2c8
>   [<c000000000094260>] .enqueue_rt_entity+0x6c/0x98
>   [<c0000000000942c8>] .enqueue_task_rt+0x3c/0x70
>   [<c00000000008be10>] .enqueue_task+0x7c/0xa4
>   [<c00000000008bf98>] .activate_task+0x3c/0x60
>   [<c000000000097d78>] .try_to_wake_up+0x2ac/0x3cc
>   [<c000000000097f18>] .wake_up_process+0x20/0x34
>   [<c0000000005f3bd0>] .migration_call+0x16c/0x658
>   [<c00000000086a7fc>] .migration_init+0x68/0x9c
>   [<c000000000009610>] .do_one_initcall+0x8c/0x1d0
>   [<c000000000840414>] .kernel_init+0x90/0x364
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
>    -> (&rt_rq->rt_runtime_lock){++..} ops: 0 {
>       initial-use  at:
>                                [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                                [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                                [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                                [<c000000000093f4c>] .update_curr_rt+0xec/0x1f0
>                                [<c0000000000941b8>] .dequeue_task_rt+0x28/0x64
>                                [<c00000000008bf34>] .dequeue_task+0xfc/0x124
>                                [<c00000000008bff8>] .deactivate_task+0x3c/0x60
>                                [<c0000000005e6550>] .schedule+0x228/0x9bc
>                                [<c00000000009cce0>] .migration_thread+0x248/0x348
>                                [<c0000000000c1fdc>] .kthread+0x90/0xe4
>                                [<c00000000002f640>] .kernel_thread+0x4c/0x68
>       in-hardirq-W at:
>                                [<c0000000000d7300>] .__lock_acquire+0x684/0x1668
>                                [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                                [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                                [<c000000000094424>] .sched_rt_period_timer+0x128/0x294
>                                [<c0000000000c6278>] .__run_hrtimer+0xbc/0x15c
>                                [<c0000000000c77d0>] .hrtimer_interrupt+0x12c/0x1e8
>                                [<c00000000002bee4>] .timer_interrupt+0x174/0x1f8
>                                [<c000000000003728>] decrementer_common+0x128/0x180
>                                [<c000000000ab76f8>] mac80211_rcpid+0x86a8/0x271f0
>                                [<c000000000169380>] .__kmalloc+0x124/0x17c
>                                [<c000000000846ba0>] .huft_build+0x458/0x764
>                                [<c0000000008474dc>] .inflate_dynamic+0x630/0x6e8
>                                [<c000000000847d24>] .unpack_to_rootfs+0x5bc/0xad4
>                                [<c000000000848400>] .populate_rootfs+0xc0/0x144
>                                [<c000000000009610>] .do_one_initcall+0x8c/0x1d0
>                                [<c000000000840664>] .kernel_init+0x2e0/0x364
>                                [<c00000000002f640>] .kernel_thread+0x4c/0x68
>       in-softirq-W at:
>                                [<c0000000000d7324>] .__lock_acquire+0x6a8/0x1668
>                                [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                                [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                                [<c000000000093f4c>] .update_curr_rt+0xec/0x1f0
>                                [<c000000000094078>] .task_tick_rt+0x28/0x100
>                                [<c00000000009d644>] .scheduler_tick+0xfc/0x2f8
>                                [<c0000000000b14d0>] .update_process_times+0x70/0xa0
>                                [<c0000000000d0bf0>] .tick_sched_timer+0xb4/0x114
>                                [<c0000000000c6278>] .__run_hrtimer+0xbc/0x15c
>                                [<c0000000000c77d0>] .hrtimer_interrupt+0x12c/0x1e8
>                                [<c00000000002bee4>] .timer_interrupt+0x174/0x1f8
>                                [<c000000000003728>] decrementer_common+0x128/0x180
>                                [<c000000000abd738>] mac80211_rcpid+0xe6e8/0x271f0
>                                [<c0000000000a94d4>] .__do_softirq+0xb4/0x1c8
>                                [<c00000000002f2d8>] .call_do_softirq+0x14/0x24
>                                [<c00000000000e8b8>] .do_softirq+0xa0/0x104
>                                [<c0000000000a8ecc>] .irq_exit+0x7c/0xd8
>                                [<c00000000000e270>] .do_IRQ+0x1cc/0x240
>                                [<c000000000004da8>] hardware_interrupt_entry+0x28/0x2c
>                                [<c000000000ac03d8>] mac80211_rcpid+0x11388/0x271f0
>                                [<c0000000000fd11c>] .stop_cpu+0x144/0x154
>                                [<c0000000000c1fdc>] .kthread+0x90/0xe4
>                                [<c00000000002f640>] .kernel_thread+0x4c/0x68
>     }
>     ... key      at: [<c000000000b9ad20>] __key.41269+0x0/0x8
>    ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>   [<c000000000091314>] .__enable_runtime+0x70/0xf4
>   [<c000000000092c1c>] .rq_online_rt+0x98/0xc8
>   [<c00000000008ca54>] .set_rq_online+0xa8/0xd8
>   [<c0000000005f3c28>] .migration_call+0x1c4/0x658
>   [<c0000000005ed830>] .notifier_call_chain+0x7c/0xf4
>   [<c0000000000c8f20>] .raw_notifier_call_chain+0x4c/0x6c
>   [<c0000000005f44bc>] ._cpu_up+0x164/0x1e8
>   [<c0000000005f45e4>] .cpu_up+0xa4/0xd8
>   [<c0000000008404e8>] .kernel_init+0x164/0x364
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
>   ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>   [<c000000000093d0c>] .__enqueue_rt_entity+0x224/0x2c8
>   [<c000000000094260>] .enqueue_rt_entity+0x6c/0x98
>   [<c0000000000942c8>] .enqueue_task_rt+0x3c/0x70
>   [<c00000000008be10>] .enqueue_task+0x7c/0xa4
>   [<c00000000008bf98>] .activate_task+0x3c/0x60
>   [<c000000000097d78>] .try_to_wake_up+0x2ac/0x3cc
>   [<c000000000097f18>] .wake_up_process+0x20/0x34
>   [<c0000000005f3bd0>] .migration_call+0x16c/0x658
>   [<c00000000086a7fc>] .migration_init+0x68/0x9c
>   [<c000000000009610>] .do_one_initcall+0x8c/0x1d0
>   [<c000000000840414>] .kernel_init+0x90/0x364
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
>   ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>   [<c000000000093f4c>] .update_curr_rt+0xec/0x1f0
>   [<c0000000000941b8>] .dequeue_task_rt+0x28/0x64
>   [<c00000000008bf34>] .dequeue_task+0xfc/0x124
>   [<c00000000008bff8>] .deactivate_task+0x3c/0x60
>   [<c0000000005e6550>] .schedule+0x228/0x9bc
>   [<c00000000009cce0>] .migration_thread+0x248/0x348
>   [<c0000000000c1fdc>] .kthread+0x90/0xe4
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
>   ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c00000000011d148>] .ftrace_record_ip+0x128/0x2c0
>   [<c00000000000916c>] mcount_call+0x4/0x18
>   [<c0000000005ea8d4>] ._spin_unlock_irq+0x28/0x7c
>   [<c00000000009c9ac>] .finish_task_switch+0x78/0x164
>   [<c0000000005e6c14>] .schedule+0x8ec/0x9bc
>   [<c0000000000c1fa4>] .kthread+0x58/0xe4
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
>   -> (&rq->lock/1){.+..} ops: 0 {
>      initial-use  at:
>                              [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                              [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                              [<c0000000005eac34>] ._spin_lock_nested+0x5c/0xc0
>                              [<c000000000094a10>] .double_rq_lock+0x78/0xb8
>                              [<c0000000000981e0>] .rebalance_domains+0x2b4/0x664
>                              [<c0000000000985f0>] .run_rebalance_domains+0x60/0x160
>                              [<c0000000000a9504>] .__do_softirq+0xe4/0x1c8
>                              [<c00000000002f2d8>] .call_do_softirq+0x14/0x24
>                              [<c00000000000e8b8>] .do_softirq+0xa0/0x104
>                              [<c0000000000a8ecc>] .irq_exit+0x7c/0xd8
>                              [<c00000000002bf34>] .timer_interrupt+0x1c4/0x1f8
>                              [<c000000000003728>] decrementer_common+0x128/0x180
>                              [<c000000000ab7d40>] mac80211_rcpid+0x8cf0/0x271f0
>                              [<c000000000014fb4>] .cpu_idle+0x13c/0x1f8
>                              [<c0000000005efa90>] .rest_init+0x8c/0xa8
>                              [<c000000000840f04>] .start_kernel+0x4b8/0x4e4
>                              [<c000000000008584>] .start_here_common+0x4c/0xc8
>      in-softirq-W at:
>                              [<c0000000000d7324>] .__lock_acquire+0x6a8/0x1668
>                              [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                              [<c0000000005eac34>] ._spin_lock_nested+0x5c/0xc0
>                              [<c000000000094a10>] .double_rq_lock+0x78/0xb8
>                              [<c0000000000981e0>] .rebalance_domains+0x2b4/0x664
>                              [<c0000000000985f0>] .run_rebalance_domains+0x60/0x160
>                              [<c0000000000a9504>] .__do_softirq+0xe4/0x1c8
>                              [<c00000000002f2d8>] .call_do_softirq+0x14/0x24
>                              [<c00000000000e8b8>] .do_softirq+0xa0/0x104
>                              [<c0000000000a8ecc>] .irq_exit+0x7c/0xd8
>                              [<c00000000002bf34>] .timer_interrupt+0x1c4/0x1f8
>                              [<c000000000003728>] decrementer_common+0x128/0x180
>                              [<c000000000ab7d40>] mac80211_rcpid+0x8cf0/0x271f0
>                              [<c000000000014fb4>] .cpu_idle+0x13c/0x1f8
>                              [<c0000000005efa90>] .rest_init+0x8c/0xa8
>                              [<c000000000840f04>] .start_kernel+0x4b8/0x4e4
>                              [<c000000000008584>] .start_here_common+0x4c/0xc8
>    }
>    ... key      at: [<c000000000b9cfa1>] __key.41338+0x1/0x8
>    -> (&q->lock#2){++..} ops: 0 {
>       initial-use  at:
>                                [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                                [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                                [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                                [<c0000000000dfca4>] .generic_exec_single+0x74/0x114
>                                [<c0000000000dff04>] .smp_call_function_single+0x14c/0x17c
>                                [<c0000000000e0034>] .smp_call_function_mask+0x100/0x294
>                                [<c0000000000e0220>] .smp_call_function+0x58/0x7c
>                                [<c0000000000a8d08>] .on_each_cpu+0x44/0xb8
>                                [<c00000000002bfb0>] .snapshot_timebases+0x48/0x64
>                                [<c000000000851e98>] .smp_cpus_done+0xd8/0x108
>                                [<c000000000840598>] .kernel_init+0x214/0x364
>                                [<c00000000002f640>] .kernel_thread+0x4c/0x68
>       in-hardirq-W at:
>                                [<c0000000000d7300>] .__lock_acquire+0x684/0x1668
>                                [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                                [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                                [<c0000000000e02ac>] .generic_smp_call_function_single_interrupt+0x68/0x148
>                                [<c000000000033738>] .smp_message_recv+0x88/0x13c
>                                [<c00000000005a280>] .xics_ipi_dispatch+0x120/0x198
>                                [<c00000000005a3b0>] .xics_ipi_action_lpar+0x60/0x78
>                                [<c000000000111140>] .handle_IRQ_event+0x60/0xdc
>                                [<c0000000001134cc>] .handle_percpu_irq+0x94/0x10c
>                                [<c00000000002f304>] .call_handle_irq+0x1c/0x2c
>                                [<c00000000000e1e4>] .do_IRQ+0x140/0x240
>                                [<c000000000004da8>] hardware_interrupt_entry+0x28/0x2c
>                                [<c000000000abcb08>] mac80211_rcpid+0xdab8/0x271f0
>                                [<c0000000005ea908>] ._spin_unlock_irq+0x5c/0x7c
>                                [<c00000000009c9ac>] .finish_task_switch+0x78/0x164
>                                [<c0000000005e6c14>] .schedule+0x8ec/0x9bc
>                                [<c0000000000c1fa4>] .kthread+0x58/0xe4
>                                [<c00000000002f640>] .kernel_thread+0x4c/0x68
>       in-softirq-W at:
>                                [<c0000000000d7324>] .__lock_acquire+0x6a8/0x1668
>                                [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                                [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                                [<c0000000000e02ac>] .generic_smp_call_function_single_interrupt+0x68/0x148
>                                [<c000000000033738>] .smp_message_recv+0x88/0x13c
>                                [<c00000000005a280>] .xics_ipi_dispatch+0x120/0x198
>                                [<c00000000005a3b0>] .xics_ipi_action_lpar+0x60/0x78
>                                [<c000000000111140>] .handle_IRQ_event+0x60/0xdc
>                                [<c0000000001134cc>] .handle_percpu_irq+0x94/0x10c
>                                [<c00000000002f304>] .call_handle_irq+0x1c/0x2c
>                                [<c00000000000e1e4>] .do_IRQ+0x140/0x240
>                                [<c000000000004da8>] hardware_interrupt_entry+0x28/0x2c
>                                [<c000000000abd738>] mac80211_rcpid+0xe6e8/0x271f0
>                                [<c0000000000a94d4>] .__do_softirq+0xb4/0x1c8
>                                [<c00000000002f2d8>] .call_do_softirq+0x14/0x24
>                                [<c00000000000e8b8>] .do_softirq+0xa0/0x104
>                                [<c0000000000a8ecc>] .irq_exit+0x7c/0xd8
>                                [<c00000000002bf34>] .timer_interrupt+0x1c4/0x1f8
>                                [<c000000000003728>] decrementer_common+0x128/0x180
>                                [<c000000000abd618>] mac80211_rcpid+0xe5c8/0x271f0
>                                [<c0000000005ea570>] ._write_unlock_irq+0x5c/0x7c
>                                [<c0000000000a4884>] .release_task+0x4d4/0x540
>                                [<c0000000000a6720>] .do_exit+0x894/0x94c
>                                [<c0000000000bb244>] .____call_usermodehelper+0x18c/0x190
>                                [<c00000000002f640>] .kernel_thread+0x4c/0x68
>     }
>     ... key      at: [<c000000001212834>] __key.12367+0x0/0x8
>    ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c0000000000dfca4>] .generic_exec_single+0x74/0x114
>   [<c0000000000dfd9c>] .__smp_call_function_single+0x58/0x74
>   [<c00000000008f184>] .hrtick_start_fair+0x180/0x1b0
>   [<c0000000000910e0>] .enqueue_task_fair+0x5c/0x78
>   [<c00000000008be10>] .enqueue_task+0x7c/0xa4
>   [<c00000000008bf98>] .activate_task+0x3c/0x60
>   [<c000000000094b64>] .__migrate_task+0x114/0x194
>   [<c00000000009cd28>] .migration_thread+0x290/0x348
>   [<c0000000000c1fdc>] .kthread+0x90/0xe4
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
>    ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c0000000000c6cf0>] .lock_hrtimer_base+0x44/0x98
>   [<c0000000000c7100>] .hrtimer_start+0x68/0x218
>   [<c00000000008f164>] .hrtick_start_fair+0x160/0x1b0
>   [<c00000000008f308>] .dequeue_task_fair+0x64/0x84
>   [<c00000000008bf34>] .dequeue_task+0xfc/0x124
>   [<c00000000008bff8>] .deactivate_task+0x3c/0x60
>   [<c000000000094b3c>] .__migrate_task+0xec/0x194
>   [<c00000000009cd28>] .migration_thread+0x290/0x348
>   [<c0000000000c1fdc>] .kthread+0x90/0xe4
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
>   ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eac34>] ._spin_lock_nested+0x5c/0xc0
>   [<c000000000094a10>] .double_rq_lock+0x78/0xb8
>   [<c0000000000981e0>] .rebalance_domains+0x2b4/0x664
>   [<c0000000000985f0>] .run_rebalance_domains+0x60/0x160
>   [<c0000000000a9504>] .__do_softirq+0xe4/0x1c8
>   [<c00000000002f2d8>] .call_do_softirq+0x14/0x24
>   [<c00000000000e8b8>] .do_softirq+0xa0/0x104
>   [<c0000000000a8ecc>] .irq_exit+0x7c/0xd8
>   [<c00000000002bf34>] .timer_interrupt+0x1c4/0x1f8
>   [<c000000000003728>] decrementer_common+0x128/0x180
>   [<c000000000ab7d40>] mac80211_rcpid+0x8cf0/0x271f0
>   [<c000000000014fb4>] .cpu_idle+0x13c/0x1f8
>   [<c0000000005efa90>] .rest_init+0x8c/0xa8
>   [<c000000000840f04>] .start_kernel+0x4b8/0x4e4
>   [<c000000000008584>] .start_here_common+0x4c/0xc8
>
>   ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c0000000000dfca4>] .generic_exec_single+0x74/0x114
>   [<c0000000000dfd9c>] .__smp_call_function_single+0x58/0x74
>   [<c00000000008f184>] .hrtick_start_fair+0x180/0x1b0
>   [<c0000000000910e0>] .enqueue_task_fair+0x5c/0x78
>   [<c00000000008be10>] .enqueue_task+0x7c/0xa4
>   [<c00000000008bf98>] .activate_task+0x3c/0x60
>   [<c000000000097d78>] .try_to_wake_up+0x2ac/0x3cc
>   [<c000000000097eb4>] .default_wake_function+0x1c/0x30
>   [<c00000000008c794>] .__wake_up_common+0x74/0xec
>   [<c00000000008e0c4>] .complete+0x5c/0x8c
>   [<c0000000000bb094>] .__call_usermodehelper+0x90/0xb4
>   [<c0000000000bb978>] .run_workqueue+0x178/0x298
>   [<c0000000000bbbd0>] .worker_thread+0x138/0x168
>   [<c0000000000c1fdc>] .kthread+0x90/0xe4
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
>   ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c0000000000c6cf0>] .lock_hrtimer_base+0x44/0x98
>   [<c0000000000c7100>] .hrtimer_start+0x68/0x218
>   [<c000000000091428>] .__hrtick_start+0x34/0x64
>   [<c0000000000e030c>] .generic_smp_call_function_single_interrupt+0xc8/0x148
>   [<c000000000033738>] .smp_message_recv+0x88/0x13c
>   [<c00000000005a280>] .xics_ipi_dispatch+0x120/0x198
>   [<c00000000005a3b0>] .xics_ipi_action_lpar+0x60/0x78
>   [<c000000000111140>] .handle_IRQ_event+0x60/0xdc
>   [<c0000000001134cc>] .handle_percpu_irq+0x94/0x10c
>   [<c00000000002f304>] .call_handle_irq+0x1c/0x2c
>   [<c00000000000e1e4>] .do_IRQ+0x140/0x240
>   [<c000000000004da8>] hardware_interrupt_entry+0x28/0x2c
>   [<c000000000abd738>] mac80211_rcpid+0xe6e8/0x271f0
>   [<c0000000000a94d4>] .__do_softirq+0xb4/0x1c8
>   [<c00000000002f2d8>] .call_do_softirq+0x14/0x24
>   [<c00000000000e8b8>] .do_softirq+0xa0/0x104
>   [<c0000000000a8ecc>] .irq_exit+0x7c/0xd8
>   [<c00000000002bf34>] .timer_interrupt+0x1c4/0x1f8
>   [<c000000000003728>] decrementer_common+0x128/0x180
>   [<c000000000abd618>] mac80211_rcpid+0xe5c8/0x271f0
>   [<c0000000005ea570>] ._write_unlock_irq+0x5c/0x7c
>   [<c0000000000a4884>] .release_task+0x4d4/0x540
>   [<c0000000000a6720>] .do_exit+0x894/0x94c
>   [<c0000000000bb244>] .____call_usermodehelper+0x18c/0x190
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
>  ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>   [<c00000000008ea64>] .task_rq_lock+0x78/0xe0
>   [<c000000000097bac>] .try_to_wake_up+0xe0/0x3cc
>   [<c000000000097eb4>] .default_wake_function+0x1c/0x30
>   [<c00000000008c794>] .__wake_up_common+0x74/0xec
>   [<c00000000008e0c4>] .complete+0x5c/0x8c
>   [<c0000000000c1f9c>] .kthread+0x50/0xe4
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
>  ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c00000000011d148>] .ftrace_record_ip+0x128/0x2c0
>   [<c00000000000916c>] mcount_call+0x4/0x18
>   [<c0000000000c2528>] .autoremove_wake_function+0x38/0x9c
>   [<c00000000008c794>] .__wake_up_common+0x74/0xec
>   [<c00000000008e1ec>] .__wake_up+0x5c/0x94
>   [<c0000000000bbcfc>] .insert_work+0x84/0xa8
>   [<c0000000000bcc04>] .__queue_work+0x50/0x80
>   [<c0000000000bcd64>] .queue_work_on+0xa8/0xd0
>   [<c0000000000bcfa4>] .queue_work+0x3c/0x58
>   [<c0000000000bb39c>] .call_usermodehelper_exec+0xdc/0x178
>   [<c00000000028dd20>] .kobject_uevent_env+0x3dc/0x45c
>   [<c00000000028ddbc>] .kobject_uevent+0x1c/0x30
>   [<c00000000028d090>] .kset_register+0x4c/0x70
>   [<c0000000003aff64>] .bus_register+0xcc/0x298
>   [<c0000000004e6800>] .of_bus_type_init+0x78/0x9c
>   [<c00000000084a918>] .of_bus_driver_init+0x30/0x4c
>   [<c000000000009610>] .do_one_initcall+0x8c/0x1d0
>   [<c000000000840664>] .kernel_init+0x2e0/0x364
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
> ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c00000000008e1cc>] .__wake_up+0x3c/0x94
>   [<c000000000371010>] .tty_wakeup+0x98/0xb8
>   [<c000000000392844>] .hvc_poll+0x284/0x314
>   [<c0000000003929a8>] .khvcd+0xd4/0x1e4
>   [<c0000000000c1fdc>] .kthread+0x90/0xe4
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
> -> (&irq_desc_lock_class){++..} ops: 0 {
>    initial-use  at:
>                          [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                          [<c00000000011321c>] .set_irq_chip+0x74/0xc4
>                          [<c00000000011332c>] .set_irq_chip_and_handler+0x40/0x74
>                          [<c00000000005a418>] .xics_host_map+0x50/0x70
>                          [<c00000000000d650>] .irq_setup_virq+0x98/0xdc
>                          [<c00000000000db50>] .irq_create_mapping+0x120/0x158
>                          [<c00000000005a0dc>] .xics_request_IPIs+0x30/0xb4
>                          [<c00000000085d5c0>] .smp_xics_probe+0x20/0x48
>                          [<c000000000851f8c>] .smp_prepare_cpus+0xc4/0x1a8
>                          [<c0000000008403f8>] .kernel_init+0x74/0x364
>                          [<c00000000002f640>] .kernel_thread+0x4c/0x68
>    in-hardirq-W at:
>                          [<c0000000000d7300>] .__lock_acquire+0x684/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                          [<c000000000113814>] .handle_fasteoi_irq+0x4c/0x1b8
>                          [<c00000000002f304>] .call_handle_irq+0x1c/0x2c
>                          [<c00000000000e1e4>] .do_IRQ+0x140/0x240
>                          [<c000000000004da8>] hardware_interrupt_entry+0x28/0x2c
>                          [<c000000000ab7d40>] mac80211_rcpid+0x8cf0/0x271f0
>                          [<c000000000014fb4>] .cpu_idle+0x13c/0x1f8
>                          [<c0000000005efa90>] .rest_init+0x8c/0xa8
>                          [<c000000000840f04>] .start_kernel+0x4b8/0x4e4
>                          [<c000000000008584>] .start_here_common+0x4c/0xc8
>    in-softirq-W at:
>                          [<c0000000000d7324>] .__lock_acquire+0x6a8/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                          [<c000000000113814>] .handle_fasteoi_irq+0x4c/0x1b8
>                          [<c00000000002f304>] .call_handle_irq+0x1c/0x2c
>                          [<c00000000000e1e4>] .do_IRQ+0x140/0x240
>                          [<c000000000004da8>] hardware_interrupt_entry+0x28/0x2c
>                          [<c0000000000a9504>] .__do_softirq+0xe4/0x1c8
>                          [<c00000000002f2d8>] .call_do_softirq+0x14/0x24
>                          [<c00000000000e8b8>] .do_softirq+0xa0/0x104
>                          [<c0000000000a8ecc>] .irq_exit+0x7c/0xd8
>                          [<c00000000000e270>] .do_IRQ+0x1cc/0x240
>                          [<c000000000004da8>] hardware_interrupt_entry+0x28/0x2c
>                          [<c000000000ab7d40>] mac80211_rcpid+0x8cf0/0x271f0
>                          [<c000000000014fb4>] .cpu_idle+0x13c/0x1f8
>                          [<c0000000005efa90>] .rest_init+0x8c/0xa8
>                          [<c000000000840f04>] .start_kernel+0x4b8/0x4e4
>                          [<c000000000008584>] .start_here_common+0x4c/0xc8
>  }
>  ... key      at: [<c000000001221018>] irq_desc_lock_class+0x0/0x8
>  ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c00000000011d148>] .ftrace_record_ip+0x128/0x2c0
>   [<c00000000000916c>] mcount_call+0x4/0x18
>   [<c000000000112b9c>] .irq_chip_set_defaults+0x28/0xd4
>   [<c00000000011322c>] .set_irq_chip+0x84/0xc4
>   [<c00000000011332c>] .set_irq_chip_and_handler+0x40/0x74
>   [<c00000000005a418>] .xics_host_map+0x50/0x70
>   [<c00000000000d650>] .irq_setup_virq+0x98/0xdc
>   [<c00000000000db50>] .irq_create_mapping+0x120/0x158
>   [<c00000000000dc78>] .irq_create_of_mapping+0xf0/0x154
>   [<c0000000000354e0>] .pci_read_irq_line+0xe8/0x124
>   [<c0000000005f8aa0>] .__pcibios_fixup_bus+0x1c8/0x250
>   [<c0000000005f8b54>] .pcibios_fixup_of_probed_bus+0x2c/0x44
>   [<c0000000005f7850>] .of_scan_bus+0xa8/0x15c
>   [<c0000000005f7cc0>] .of_scan_pci_bridge+0x284/0x2c8
>   [<c0000000005f78c0>] .of_scan_bus+0x118/0x15c
>   [<c0000000005f79f4>] .scan_phb+0xf0/0x138
>   [<c000000000852f1c>] .pcibios_init+0x88/0xe8
>   [<c000000000009610>] .do_one_initcall+0x8c/0x1d0
>   [<c000000000840664>] .kernel_init+0x2e0/0x364
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
>  -> (irq_big_lock){+...} ops: 0 {
>     initial-use  at:
>                            [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                            [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                            [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                            [<c00000000000de20>] .irq_alloc_host+0xcc/0x258
>                            [<c00000000085da30>] .xics_init_IRQ+0x280/0x31c
>                            [<c00000000085cd74>] .pseries_xics_init_IRQ+0x20/0x3c
>                            [<c000000000848734>] .init_IRQ+0x4c/0x6c
>                            [<c000000000840cd0>] .start_kernel+0x284/0x4e4
>                            [<c000000000008584>] .start_here_common+0x4c/0xc8
>     in-hardirq-W at:
>                            [<c0000000000d7300>] .__lock_acquire+0x684/0x1668
>                            [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                            [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                            [<c00000000000d058>] .irq_radix_wrlock+0x38/0xd0
>                            [<c00000000000e7ac>] .irq_radix_revmap+0x180/0x1ec
>                            [<c00000000005aad8>] .xics_get_irq_lpar+0x68/0xac
>                            [<c00000000000e144>] .do_IRQ+0xa0/0x240
>                            [<c000000000004da8>] hardware_interrupt_entry+0x28/0x2c
>                            [<c000000000ab7d40>] mac80211_rcpid+0x8cf0/0x271f0
>                            [<c000000000014fb4>] .cpu_idle+0x13c/0x1f8
>                            [<c0000000005f72ac>] .start_secondary+0x3a8/0x3e8
>                            [<c0000000000083cc>] .start_secondary_prolog+0xc/0x10
>   }
>   ... key      at: [<c000000000a29420>] irq_big_lock+0x18/0x38
>   -> (&zone->lock){++..} ops: 0 {
>      initial-use  at:
>                              [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                              [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                              [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                              [<c00000000012f6e0>] .free_pages_bulk+0x80/0x3c4
>                              [<c000000000131478>] .free_hot_cold_page+0x218/0x28c
>                              [<c0000000001315f4>] .free_hot_page+0x30/0x48
>                              [<c000000000131680>] .__free_pages+0x74/0xa0
>                              [<c00000000060f3c8>] .__free_pages_bootmem+0x104/0x120
>                              [<c000000000871c70>] .free_all_bootmem_core+0x140/0x250
>                              [<c000000000871df8>] .free_all_bootmem_node+0x2c/0x44
>                              [<c000000000853b60>] .mem_init+0xac/0x244
>                              [<c000000000840dec>] .start_kernel+0x3a0/0x4e4
>                              [<c000000000008584>] .start_here_common+0x4c/0xc8
>      in-hardirq-W at:
>                              [<c0000000000d7300>] .__lock_acquire+0x684/0x1668
>                              [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                              [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                              [<c000000000131df4>] .get_page_from_freelist+0x3d8/0x7a8
>                              [<c00000000013275c>] .__alloc_pages_internal+0x1e8/0x5b8
>                              [<c00000000015b560>] .alloc_pages_current+0xe0/0x10c
>                              [<c000000000166b5c>] .new_slab+0x98/0x34c
>                              [<c0000000001676a4>] .__slab_alloc+0x310/0x5e0
>                              [<c000000000167b5c>] .kmem_cache_alloc+0x9c/0x128
>                              [<c000000000290868>] .radix_tree_node_alloc+0x7c/0xa0
>                              [<c0000000002909d8>] .radix_tree_insert+0x14c/0x290
>                              [<c00000000000e7c4>] .irq_radix_revmap+0x198/0x1ec
>                              [<c00000000005aad8>] .xics_get_irq_lpar+0x68/0xac
>                              [<c00000000000e144>] .do_IRQ+0xa0/0x240
>                              [<c000000000004da8>] hardware_interrupt_entry+0x28/0x2c
>                              [<c000000000ab7d40>] mac80211_rcpid+0x8cf0/0x271f0
>                              [<c000000000014fb4>] .cpu_idle+0x13c/0x1f8
>                              [<c0000000005f72ac>] .start_secondary+0x3a8/0x3e8
>                              [<c0000000000083cc>] .start_secondary_prolog+0xc/0x10
>      in-softirq-W at:
>                              [<c0000000000d7324>] .__lock_acquire+0x6a8/0x1668
>                              [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                              [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                              [<c000000000130ee8>] .__free_pages_ok+0x1dc/0x4f8
>                              [<c000000000131690>] .__free_pages+0x84/0xa0
>                              [<c000000000131764>] .free_pages+0xb8/0xd8
>                              [<c00000000009ed00>] .free_task+0x44/0x84
>                              [<c0000000000a038c>] .__put_task_struct+0xf4/0x110
>                              [<c0000000000a3758>] .delayed_put_task_struct+0x50/0x6c
>                              [<c000000000114fac>] .__rcu_process_callbacks+0x21c/0x2f4
>                              [<c0000000001150d0>] .rcu_process_callbacks+0x4c/0x7c
>                              [<c0000000000a9504>] .__do_softirq+0xe4/0x1c8
>                              [<c00000000002f2d8>] .call_do_softirq+0x14/0x24
>                              [<c00000000000e8b8>] .do_softirq+0xa0/0x104
>                              [<c0000000000a8ecc>] .irq_exit+0x7c/0xd8
>                              [<c00000000002bf34>] .timer_interrupt+0x1c4/0x1f8
>                              [<c000000000003728>] decrementer_common+0x128/0x180
>                              [<c000000000ab7d40>] mac80211_rcpid+0x8cf0/0x271f0
>                              [<c000000000014fb4>] .cpu_idle+0x13c/0x1f8
>                              [<c0000000005f72ac>] .start_secondary+0x3a8/0x3e8
>                              [<c0000000000083cc>] .start_secondary_prolog+0xc/0x10
>    }
>    ... key      at: [<c00000000124c388>] __key.27191+0x0/0x8
>    ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c00000000011d148>] .ftrace_record_ip+0x128/0x2c0
>   [<c00000000000916c>] mcount_call+0x4/0x18
>   [<c00000000012f1e4>] .__rmqueue+0x58/0x2b0
>   [<c000000000131e0c>] .get_page_from_freelist+0x3f0/0x7a8
>   [<c00000000013275c>] .__alloc_pages_internal+0x1e8/0x5b8
>   [<c00000000015b2c8>] .alloc_page_interleave+0x70/0xe0
>   [<c00000000015b52c>] .alloc_pages_current+0xac/0x10c
>   [<c000000000166b5c>] .new_slab+0x98/0x34c
>   [<c0000000001676a4>] .__slab_alloc+0x310/0x5e0
>   [<c000000000167b5c>] .kmem_cache_alloc+0x9c/0x128
>   [<c0000000001961d4>] .alloc_vfsmnt+0x54/0x1a0
>   [<c000000000174938>] .vfs_kern_mount+0x60/0x1c4
>   [<c000000000174adc>] .kern_mount_data+0x40/0x5c
>   [<c000000000887974>] .sock_init+0x84/0xb8
>   [<c000000000009610>] .do_one_initcall+0x8c/0x1d0
>   [<c000000000840664>] .kernel_init+0x2e0/0x364
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
>   ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c000000000131df4>] .get_page_from_freelist+0x3d8/0x7a8
>   [<c00000000013275c>] .__alloc_pages_internal+0x1e8/0x5b8
>   [<c00000000015b560>] .alloc_pages_current+0xe0/0x10c
>   [<c000000000166b5c>] .new_slab+0x98/0x34c
>   [<c0000000001676a4>] .__slab_alloc+0x310/0x5e0
>   [<c000000000167b5c>] .kmem_cache_alloc+0x9c/0x128
>   [<c000000000290868>] .radix_tree_node_alloc+0x7c/0xa0
>   [<c0000000002909d8>] .radix_tree_insert+0x14c/0x290
>   [<c00000000000e7c4>] .irq_radix_revmap+0x198/0x1ec
>   [<c00000000005aad8>] .xics_get_irq_lpar+0x68/0xac
>   [<c00000000000e144>] .do_IRQ+0xa0/0x240
>   [<c000000000004da8>] hardware_interrupt_entry+0x28/0x2c
>   [<c000000000ab7d40>] mac80211_rcpid+0x8cf0/0x271f0
>   [<c000000000014fb4>] .cpu_idle+0x13c/0x1f8
>   [<c0000000005f72ac>] .start_secondary+0x3a8/0x3e8
>   [<c0000000000083cc>] .start_secondary_prolog+0xc/0x10
>
>   ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c00000000011d148>] .ftrace_record_ip+0x128/0x2c0
>   [<c00000000000916c>] mcount_call+0x4/0x18
>   [<c00000000005a458>] .xics_host_match+0x20/0x58
>   [<c00000000000d40c>] .irq_find_host+0x78/0xec
>   [<c00000000000dbec>] .irq_create_of_mapping+0x64/0x154
>   [<c0000000000354e0>] .pci_read_irq_line+0xe8/0x124
>   [<c0000000005f8aa0>] .__pcibios_fixup_bus+0x1c8/0x250
>   [<c0000000005f8b54>] .pcibios_fixup_of_probed_bus+0x2c/0x44
>   [<c0000000005f7850>] .of_scan_bus+0xa8/0x15c
>   [<c0000000005f7cc0>] .of_scan_pci_bridge+0x284/0x2c8
>   [<c0000000005f78c0>] .of_scan_bus+0x118/0x15c
>   [<c0000000005f79f4>] .scan_phb+0xf0/0x138
>   [<c000000000852f1c>] .pcibios_init+0x88/0xe8
>   [<c000000000009610>] .do_one_initcall+0x8c/0x1d0
>   [<c000000000840664>] .kernel_init+0x2e0/0x364
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
>  ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c00000000000d058>] .irq_radix_wrlock+0x38/0xd0
>   [<c00000000000e7ac>] .irq_radix_revmap+0x180/0x1ec
>   [<c00000000005aa48>] .xics_startup+0x40/0x68
>   [<c000000000112070>] .setup_irq+0x238/0x3dc
>   [<c000000000112364>] .request_irq+0x150/0x1a8
>   [<c000000000058544>] .request_ras_irqs+0x198/0x214
>   [<c00000000085d210>] .init_ras_IRQ+0x90/0xb8
>   [<c000000000009610>] .do_one_initcall+0x8c/0x1d0
>   [<c000000000840664>] .kernel_init+0x2e0/0x364
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
>  -> (old_style_spin_init){....} ops: 0 {
>     initial-use  at:
>                            [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                            [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                            [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                            [<c000000000023c5c>] .rtas_call+0x84/0x288
>                            [<c000000000056f64>] .pSeries_cmo_feature_init+0x80/0x214
>                            [<c00000000085d164>] .pSeries_init_early+0x68/0x84
>                            [<c000000000849cc8>] .setup_system+0x21c/0x3bc
>                            [<c000000000008564>] .start_here_common+0x2c/0xc8
>   }
>   ... key      at: [<c000000000a4b4d0>] rtas+0x30/0xb0
>  ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c000000000023c5c>] .rtas_call+0x84/0x288
>   [<c00000000005a984>] .xics_unmask_irq+0x80/0x104
>   [<c00000000005aa54>] .xics_startup+0x4c/0x68
>   [<c000000000112070>] .setup_irq+0x238/0x3dc
>   [<c000000000112364>] .request_irq+0x150/0x1a8
>   [<c000000000058544>] .request_ras_irqs+0x198/0x214
>   [<c00000000085d210>] .init_ras_IRQ+0x90/0xb8
>   [<c000000000009610>] .do_one_initcall+0x8c/0x1d0
>   [<c000000000840664>] .kernel_init+0x2e0/0x364
>   [<c00000000002f640>] .kernel_thread+0x4c/0x68
>
> ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c000000000111ac4>] .free_irq+0x7c/0x21c
>   [<c000000000392af8>] .notifier_del_irq+0x40/0x68
>   [<c0000000003921dc>] .hvc_close+0xb0/0x124
>   [<c000000000375468>] .release_dev+0x250/0x590
>   [<c00000000037596c>] .tty_release+0x34/0x58
>   [<c0000000001728fc>] .__fput+0x128/0x248
>   [<c000000000172a6c>] .fput+0x50/0x68
>   [<c00000000016e2f8>] .filp_close+0xc8/0xf4
>   [<c00000000016e3fc>] .sys_close+0xd8/0x134
>   [<c000000000008770>] syscall_exit+0x0/0x40
>
> -> (proc_subdir_lock){--..} ops: 0 {
>    initial-use  at:
>                          [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                          [<c0000000001df208>] .xlate_proc_name+0x60/0x11c
>                          [<c0000000001df6a4>] .__proc_create+0x74/0x168
>                          [<c0000000001dff2c>] .create_proc_entry+0x8c/0xd8
>                          [<c0000000008771e8>] .proc_misc_init+0x4c/0x320
>                          [<c000000000877048>] .proc_root_init+0x88/0x118
>                          [<c000000000840edc>] .start_kernel+0x490/0x4e4
>                          [<c000000000008584>] .start_here_common+0x4c/0xc8
>    softirq-on-W at:
>                          [<c0000000000d73b4>] .__lock_acquire+0x738/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                          [<c0000000001df208>] .xlate_proc_name+0x60/0x11c
>                          [<c0000000001df6a4>] .__proc_create+0x74/0x168
>                          [<c0000000001dff2c>] .create_proc_entry+0x8c/0xd8
>                          [<c0000000008771e8>] .proc_misc_init+0x4c/0x320
>                          [<c000000000877048>] .proc_root_init+0x88/0x118
>                          [<c000000000840edc>] .start_kernel+0x490/0x4e4
>                          [<c000000000008584>] .start_here_common+0x4c/0xc8
>    hardirq-on-W at:
>                          [<c0000000000d7390>] .__lock_acquire+0x714/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                          [<c0000000001df208>] .xlate_proc_name+0x60/0x11c
>                          [<c0000000001df6a4>] .__proc_create+0x74/0x168
>                          [<c0000000001dff2c>] .create_proc_entry+0x8c/0xd8
>                          [<c0000000008771e8>] .proc_misc_init+0x4c/0x320
>                          [<c000000000877048>] .proc_root_init+0x88/0x118
>                          [<c000000000840edc>] .start_kernel+0x490/0x4e4
>                          [<c000000000008584>] .start_here_common+0x4c/0xc8
>  }
>  ... key      at: [<c000000000a613d8>] proc_subdir_lock+0x18/0x38
>  ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c00000000011d148>] .ftrace_record_ip+0x128/0x2c0
>   [<c00000000000916c>] mcount_call+0x4/0x18
>   [<c0000000001d71c4>] .de_get+0x20/0x54
>   [<c0000000001e056c>] .proc_lookup_de+0x98/0x168
>   [<c0000000001e0678>] .proc_lookup+0x3c/0x58
>   [<c0000000001d8500>] .proc_root_lookup+0x44/0x88
>   [<c00000000017cd78>] .do_lookup+0x120/0x278
>   [<c00000000017ff88>] .__link_path_walk+0xc84/0x12ac
>   [<c0000000001808c0>] .path_walk+0xa4/0x158
>   [<c000000000180b78>] .do_path_lookup+0x204/0x2b4
>   [<c000000000180cb0>] .__path_lookup_intent_open+0x88/0xf0
>   [<c000000000180d78>] .path_lookup_open+0x60/0x88
>   [<c000000000181fa8>] .do_filp_open+0xf8/0x964
>   [<c00000000016e590>] .do_sys_open+0x94/0x15c
>   [<c0000000001bcc70>] .compat_sys_open+0x48/0x6c
>   [<c000000000008770>] syscall_exit+0x0/0x40
>
> ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>   [<c0000000001df208>] .xlate_proc_name+0x60/0x11c
>   [<c0000000001df3f0>] .remove_proc_entry+0x58/0x298
>   [<c000000000114320>] .unregister_handler_proc+0x58/0x7c
>   [<c000000000111b74>] .free_irq+0x12c/0x21c
>   [<c000000000392af8>] .notifier_del_irq+0x40/0x68
>   [<c0000000003921dc>] .hvc_close+0xb0/0x124
>   [<c000000000375468>] .release_dev+0x250/0x590
>   [<c00000000037596c>] .tty_release+0x34/0x58
>   [<c0000000001728fc>] .__fput+0x128/0x248
>   [<c000000000172a6c>] .fput+0x50/0x68
>   [<c00000000016e2f8>] .filp_close+0xc8/0xf4
>   [<c00000000016e3fc>] .sys_close+0xd8/0x134
>   [<c000000000008770>] syscall_exit+0x0/0x40
>
> -> (&ent->pde_unload_lock){--..} ops: 0 {
>    initial-use  at:
>                          [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                          [<c0000000001d7dcc>] .proc_reg_open+0x78/0x1bc
>                          [<c00000000016e980>] .__dentry_open+0x1ec/0x360
>                          [<c00000000016ec28>] .nameidata_to_filp+0x58/0x90
>                          [<c0000000001822e0>] .do_filp_open+0x430/0x964
>                          [<c00000000016e590>] .do_sys_open+0x94/0x15c
>                          [<c0000000001bcc70>] .compat_sys_open+0x48/0x6c
>                          [<c000000000008770>] syscall_exit+0x0/0x40
>    softirq-on-W at:
>                          [<c0000000000d73b4>] .__lock_acquire+0x738/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                          [<c0000000001d7dcc>] .proc_reg_open+0x78/0x1bc
>                          [<c00000000016e980>] .__dentry_open+0x1ec/0x360
>                          [<c00000000016ec28>] .nameidata_to_filp+0x58/0x90
>                          [<c0000000001822e0>] .do_filp_open+0x430/0x964
>                          [<c00000000016e590>] .do_sys_open+0x94/0x15c
>                          [<c0000000001bcc70>] .compat_sys_open+0x48/0x6c
>                          [<c000000000008770>] syscall_exit+0x0/0x40
>    hardirq-on-W at:
>                          [<c0000000000d7390>] .__lock_acquire+0x714/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                          [<c0000000001d7dcc>] .proc_reg_open+0x78/0x1bc
>                          [<c00000000016e980>] .__dentry_open+0x1ec/0x360
>                          [<c00000000016ec28>] .nameidata_to_filp+0x58/0x90
>                          [<c0000000001822e0>] .do_filp_open+0x430/0x964
>                          [<c00000000016e590>] .do_sys_open+0x94/0x15c
>                          [<c0000000001bcc70>] .compat_sys_open+0x48/0x6c
>                          [<c000000000008770>] syscall_exit+0x0/0x40
>  }
>  ... key      at: [<c000000001257384>] __key.16384+0x0/0xc
>  -> (&n->list_lock){.+..} ops: 0 {
>     initial-use  at:
>                            [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                            [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                            [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                            [<c000000000163d00>] .add_partial+0x3c/0xa0
>                            [<c000000000168908>] .kmem_cache_open+0x2b0/0x444
>                            [<c00000000016a334>] .create_kmalloc_cache+0x88/0x10c
>                            [<c000000000875670>] .kmem_cache_init+0x88/0x1d0
>                            [<c000000000840dfc>] .start_kernel+0x3b0/0x4e4
>                            [<c000000000008584>] .start_here_common+0x4c/0xc8
>     in-softirq-W at:
>                            [<c0000000000d7324>] .__lock_acquire+0x6a8/0x1668
>                            [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                            [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                            [<c0000000001672d0>] .__slab_free+0x2fc/0x3c0
>                            [<c000000000168508>] .kmem_cache_free+0x108/0x168
>                            [<c0000000000be438>] .put_pid+0x80/0xc0
>                            [<c0000000000be4a4>] .delayed_put_pid+0x2c/0x44
>                            [<c000000000114fac>] .__rcu_process_callbacks+0x21c/0x2f4
>                            [<c0000000001150d0>] .rcu_process_callbacks+0x4c/0x7c
>                            [<c0000000000a9504>] .__do_softirq+0xe4/0x1c8
>                            [<c00000000002f2d8>] .call_do_softirq+0x14/0x24
>                            [<c00000000000e8b8>] .do_softirq+0xa0/0x104
>                            [<c0000000000a8ecc>] .irq_exit+0x7c/0xd8
>                            [<c00000000002bf34>] .timer_interrupt+0x1c4/0x1f8
>                            [<c000000000003728>] decrementer_common+0x128/0x180
>                            [<c000000000ab7d40>] mac80211_rcpid+0x8cf0/0x271f0
>                            [<c000000000014fb4>] .cpu_idle+0x13c/0x1f8
>                            [<c0000000005f72ac>] .start_secondary+0x3a8/0x3e8
>                            [<c0000000000083cc>] .start_secondary_prolog+0xc/0x10
>   }
>   ... key      at: [<c000000001255b40>] __key.20791+0x0/0x8
>  ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>   [<c0000000001672d0>] .__slab_free+0x2fc/0x3c0
>   [<c000000000167e00>] .kfree+0x140/0x1a0
>   [<c0000000001d7cd8>] .proc_reg_release+0x13c/0x1b8
>   [<c0000000001728fc>] .__fput+0x128/0x248
>   [<c000000000172a6c>] .fput+0x50/0x68
>   [<c00000000016e2f8>] .filp_close+0xc8/0xf4
>   [<c00000000016e3fc>] .sys_close+0xd8/0x134
>   [<c000000000008770>] syscall_exit+0x0/0x40
>
> ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>   [<c0000000001df490>] .remove_proc_entry+0xf8/0x298
>   [<c000000000114320>] .unregister_handler_proc+0x58/0x7c
>   [<c000000000111b74>] .free_irq+0x12c/0x21c
>   [<c000000000392af8>] .notifier_del_irq+0x40/0x68
>   [<c0000000003921dc>] .hvc_close+0xb0/0x124
>   [<c000000000375468>] .release_dev+0x250/0x590
>   [<c00000000037596c>] .tty_release+0x34/0x58
>   [<c0000000001728fc>] .__fput+0x128/0x248
>   [<c000000000172a6c>] .fput+0x50/0x68
>   [<c00000000016e2f8>] .filp_close+0xc8/0xf4
>   [<c00000000016e3fc>] .sys_close+0xd8/0x134
>   [<c000000000008770>] syscall_exit+0x0/0x40
>
> -> (proc_inum_lock){--..} ops: 0 {
>    initial-use  at:
>                          [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                          [<c0000000001dfbe0>] .proc_register+0x74/0x23c
>                          [<c0000000001dff40>] .create_proc_entry+0xa0/0xd8
>                          [<c0000000008771e8>] .proc_misc_init+0x4c/0x320
>                          [<c000000000877048>] .proc_root_init+0x88/0x118
>                          [<c000000000840edc>] .start_kernel+0x490/0x4e4
>                          [<c000000000008584>] .start_here_common+0x4c/0xc8
>    softirq-on-W at:
>                          [<c0000000000d73b4>] .__lock_acquire+0x738/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                          [<c0000000001dfbe0>] .proc_register+0x74/0x23c
>                          [<c0000000001dff40>] .create_proc_entry+0xa0/0xd8
>                          [<c0000000008771e8>] .proc_misc_init+0x4c/0x320
>                          [<c000000000877048>] .proc_root_init+0x88/0x118
>                          [<c000000000840edc>] .start_kernel+0x490/0x4e4
>                          [<c000000000008584>] .start_here_common+0x4c/0xc8
>    hardirq-on-W at:
>                          [<c0000000000d7390>] .__lock_acquire+0x714/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                          [<c0000000001dfbe0>] .proc_register+0x74/0x23c
>                          [<c0000000001dff40>] .create_proc_entry+0xa0/0xd8
>                          [<c0000000008771e8>] .proc_misc_init+0x4c/0x320
>                          [<c000000000877048>] .proc_root_init+0x88/0x118
>                          [<c000000000840edc>] .start_kernel+0x490/0x4e4
>                          [<c000000000008584>] .start_here_common+0x4c/0xc8
>  }
>  ... key      at: [<c000000000a61410>] proc_inum_lock+0x18/0x38
>  -> (proc_inum_ida.lock){....} ops: 0 {
>     initial-use  at:
>                            [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                            [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                            [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                            [<c00000000028c080>] .idr_pre_get+0x64/0xcc
>                            [<c00000000028c118>] .ida_pre_get+0x30/0xb4
>                            [<c0000000001dfbcc>] .proc_register+0x60/0x23c
>                            [<c0000000001dff40>] .create_proc_entry+0xa0/0xd8
>                            [<c0000000008771e8>] .proc_misc_init+0x4c/0x320
>                            [<c000000000877048>] .proc_root_init+0x88/0x118
>                            [<c000000000840edc>] .start_kernel+0x490/0x4e4
>                            [<c000000000008584>] .start_here_common+0x4c/0xc8
>   }
>   ... key      at: [<c000000000a61460>] proc_inum_ida+0x30/0x58
>  ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c00000000028b7a0>] .get_from_free_list+0x30/0x90
>   [<c00000000028b978>] .idr_get_empty_slot+0x80/0x310
>   [<c00000000028bc98>] .ida_get_new_above+0x90/0x270
>   [<c00000000028be98>] .ida_get_new+0x20/0x34
>   [<c0000000001dfbf0>] .proc_register+0x84/0x23c
>   [<c0000000001dff40>] .create_proc_entry+0xa0/0xd8
>   [<c0000000008771e8>] .proc_misc_init+0x4c/0x320
>   [<c000000000877048>] .proc_root_init+0x88/0x118
>   [<c000000000840edc>] .start_kernel+0x490/0x4e4
>   [<c000000000008584>] .start_here_common+0x4c/0xc8
>
> ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>   [<c0000000001df320>] .free_proc_entry+0x5c/0xd4
>   [<c0000000001df604>] .remove_proc_entry+0x26c/0x298
>   [<c000000000114320>] .unregister_handler_proc+0x58/0x7c
>   [<c000000000111b74>] .free_irq+0x12c/0x21c
>   [<c000000000392af8>] .notifier_del_irq+0x40/0x68
>   [<c0000000003921dc>] .hvc_close+0xb0/0x124
>   [<c000000000375468>] .release_dev+0x250/0x590
>   [<c00000000037596c>] .tty_release+0x34/0x58
>   [<c0000000001728fc>] .__fput+0x128/0x248
>   [<c000000000172a6c>] .fput+0x50/0x68
>   [<c00000000016e2f8>] .filp_close+0xc8/0xf4
>   [<c00000000016e3fc>] .sys_close+0xd8/0x134
>   [<c000000000008770>] syscall_exit+0x0/0x40
>
>
>the second lock's dependencies:
>-> (proc_subdir_lock){--..} ops: 0 {
>   initial-use  at:
>                        [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                        [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                        [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                        [<c0000000001df208>] .xlate_proc_name+0x60/0x11c
>                        [<c0000000001df6a4>] .__proc_create+0x74/0x168
>                        [<c0000000001dff2c>] .create_proc_entry+0x8c/0xd8
>                        [<c0000000008771e8>] .proc_misc_init+0x4c/0x320
>                        [<c000000000877048>] .proc_root_init+0x88/0x118
>                        [<c000000000840edc>] .start_kernel+0x490/0x4e4
>                        [<c000000000008584>] .start_here_common+0x4c/0xc8
>   softirq-on-W at:
>                        [<c0000000000d73b4>] .__lock_acquire+0x738/0x1668
>                        [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                        [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                        [<c0000000001df208>] .xlate_proc_name+0x60/0x11c
>                        [<c0000000001df6a4>] .__proc_create+0x74/0x168
>                        [<c0000000001dff2c>] .create_proc_entry+0x8c/0xd8
>                        [<c0000000008771e8>] .proc_misc_init+0x4c/0x320
>                        [<c000000000877048>] .proc_root_init+0x88/0x118
>                        [<c000000000840edc>] .start_kernel+0x490/0x4e4
>                        [<c000000000008584>] .start_here_common+0x4c/0xc8
>   hardirq-on-W at:
>                        [<c0000000000d7390>] .__lock_acquire+0x714/0x1668
>                        [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                        [<c0000000005eacec>] ._spin_lock+0x54/0xb4
>                        [<c0000000001df208>] .xlate_proc_name+0x60/0x11c
>                        [<c0000000001df6a4>] .__proc_create+0x74/0x168
>                        [<c0000000001dff2c>] .create_proc_entry+0x8c/0xd8
>                        [<c0000000008771e8>] .proc_misc_init+0x4c/0x320
>                        [<c000000000877048>] .proc_root_init+0x88/0x118
>                        [<c000000000840edc>] .start_kernel+0x490/0x4e4
>                        [<c000000000008584>] .start_here_common+0x4c/0xc8
> }
> ... key      at: [<c000000000a613d8>] proc_subdir_lock+0x18/0x38
> -> (ftrace_shutdown_lock){++..} ops: 0 {
>    initial-use  at:
>                          [<c0000000000d73cc>] .__lock_acquire+0x750/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                          [<c00000000011d148>] .ftrace_record_ip+0x128/0x2c0
>                          [<c00000000000916c>] mcount_call+0x4/0x18
>                          [<c0000000000095bc>] .do_one_initcall+0x38/0x1d0
>                          [<c000000000840664>] .kernel_init+0x2e0/0x364
>                          [<c00000000002f640>] .kernel_thread+0x4c/0x68
>    in-hardirq-W at:
>                          [<c0000000000d7300>] .__lock_acquire+0x684/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                          [<c00000000011d148>] .ftrace_record_ip+0x128/0x2c0
>                          [<c00000000000916c>] mcount_call+0x4/0x18
>                          [<c0000000000d08f4>] .tick_nohz_update_jiffies+0x28/0x10c
>                          [<c0000000000a8fc0>] .irq_enter+0x98/0xb4
>                          [<c00000000002be98>] .timer_interrupt+0x128/0x1f8
>                          [<c000000000003728>] decrementer_common+0x128/0x180
>                          [<c000000000ab7d40>] mac80211_rcpid+0x8cf0/0x271f0
>                          [<c000000000014fb4>] .cpu_idle+0x13c/0x1f8
>                          [<c0000000005efa90>] .rest_init+0x8c/0xa8
>                          [<c000000000840f04>] .start_kernel+0x4b8/0x4e4
>                          [<c000000000008584>] .start_here_common+0x4c/0xc8
>    in-softirq-W at:
>                          [<c0000000000d7324>] .__lock_acquire+0x6a8/0x1668
>                          [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>                          [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>                          [<c00000000011d148>] .ftrace_record_ip+0x128/0x2c0
>                          [<c00000000000916c>] mcount_call+0x4/0x18
>                          [<c0000000000b0b5c>] .run_timer_softirq+0x54/0x2a0
>                          [<c0000000000a9504>] .__do_softirq+0xe4/0x1c8
>                          [<c00000000002f2d8>] .call_do_softirq+0x14/0x24
>                          [<c00000000000e8b8>] .do_softirq+0xa0/0x104
>                          [<c0000000000a8ecc>] .irq_exit+0x7c/0xd8
>                          [<c00000000002bf34>] .timer_interrupt+0x1c4/0x1f8
>                          [<c000000000003728>] decrementer_common+0x128/0x180
>                          [<c000000000ab7d40>] mac80211_rcpid+0x8cf0/0x271f0
>                          [<c000000000014fb4>] .cpu_idle+0x13c/0x1f8
>                          [<c0000000005efa90>] .rest_init+0x8c/0xa8
>                          [<c000000000840f04>] .start_kernel+0x4b8/0x4e4
>                          [<c000000000008584>] .start_here_common+0x4c/0xc8
>  }
>  ... key      at: [<c000000000a5ed38>] ftrace_shutdown_lock+0x18/0x38
> ... acquired at:
>   [<c0000000000d7f30>] .__lock_acquire+0x12b4/0x1668
>   [<c0000000000d8340>] .lock_acquire+0x5c/0x8c
>   [<c0000000005eaf3c>] ._spin_lock_irqsave+0x6c/0xd4
>   [<c00000000011d148>] .ftrace_record_ip+0x128/0x2c0
>   [<c00000000000916c>] mcount_call+0x4/0x18
>   [<c0000000001d71c4>] .de_get+0x20/0x54
>   [<c0000000001e056c>] .proc_lookup_de+0x98/0x168
>   [<c0000000001e0678>] .proc_lookup+0x3c/0x58
>   [<c0000000001d8500>] .proc_root_lookup+0x44/0x88
>   [<c00000000017cd78>] .do_lookup+0x120/0x278
>   [<c00000000017ff88>] .__link_path_walk+0xc84/0x12ac
>   [<c0000000001808c0>] .path_walk+0xa4/0x158
>   [<c000000000180b78>] .do_path_lookup+0x204/0x2b4
>   [<c000000000180cb0>] .__path_lookup_intent_open+0x88/0xf0
>   [<c000000000180d78>] .path_lookup_open+0x60/0x88
>   [<c000000000181fa8>] .do_filp_open+0xf8/0x964
>   [<c00000000016e590>] .do_sys_open+0x94/0x15c
>   [<c0000000001bcc70>] .compat_sys_open+0x48/0x6c
>   [<c000000000008770>] syscall_exit+0x0/0x40
>
>
>stack backtrace:
>Call Trace:
>[c00000000fffb750] [c000000000012784] .show_stack+0x98/0x188 (unreliable)
>[c00000000fffb800] [c0000000005f6378] .dump_stack+0x28/0x3c
>[c00000000fffb880] [c0000000000d5034] .print_irq_inversion_bug+0x1ac/0x1e0
>[c00000000fffb930] [c0000000000d5124] .check_usage_forwards+0xbc/0xe0
>[c00000000fffb9d0] [c0000000000d55e0] .mark_lock+0x3b8/0xab0
>[c00000000fffba70] [c0000000000d7300] .__lock_acquire+0x684/0x1668
>[c00000000fffbb70] [c0000000000d8340] .lock_acquire+0x5c/0x8c
>[c00000000fffbc00] [c0000000005eaf3c] ._spin_lock_irqsave+0x6c/0xd4
>[c00000000fffbca0] [c000000000392630] .hvc_poll+0x70/0x314
>[c00000000fffbdc0] [c000000000392be0] .hvc_handle_interrupt+0x2c/0x5c
>[c00000000fffbe50] [c000000000111140] .handle_IRQ_event+0x60/0xdc
>[c00000000fffbef0] [c0000000001138e0] .handle_fasteoi_irq+0x118/0x1b8
>[c00000000fffbf90] [c00000000002f304] .call_handle_irq+0x1c/0x2c
>[c000000000b2b970] [c00000000000e1e4] .do_IRQ+0x140/0x240
>[c000000000b2ba20] [c000000000004da8] hardware_interrupt_entry+0x28/0x2c
>--- Exception: 501 at .raw_local_irq_restore+0xa4/0xc0
>    LR = .cpu_idle+0x13c/0x1f8
>[c000000000b2bd10] [c000000000ab7d40] mac80211_rcpid+0x8cf0/0x271f0 (unreliable)
>[c000000000b2bdb0] [c000000000014fb4] .cpu_idle+0x13c/0x1f8
>[c000000000b2be50] [c0000000005efa90] .rest_init+0x8c/0xa8
>[c000000000b2bed0] [c000000000840f04] .start_kernel+0x4b8/0x4e4
>[c000000000b2bf90] [c000000000008584] .start_here_common+0x4c/0xc8
>virbr0: no IPv6 routers present

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Attachments on bug 464773: 318069 | 318080