Bug 782829

Summary: [rt2800usb] kernel: WARNING: at lib/list_debug.c:30 __list_add+0x8f/0xa0()
Product: [Fedora] Fedora Reporter: Mohd Nor Hashim <mohdnor.hashim>
Component: kernelAssignee: Stanislaw Gruszka <sgruszka>
Status: CLOSED INSUFFICIENT_DATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 16CC: gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
Whiteboard: abrt_hash:839c5d41e41d810a2d5fa726d652e3f6bfe99fda
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-01-31 17:31:53 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Mohd Nor Hashim 2012-01-18 16:09:56 UTC 
libreport version: 2.0.8
abrt_version:   2.0.7
cmdline:        BOOT_IMAGE=/vmlinuz-3.1.9-1.fc16.x86_64 root=UUID=f3ef4302-5a81-4706-a806-cfdc777e4ab3 ro rd.md=0 rd.lvm=0 rd.dm=0 KEYTABLE=us quiet SYSFONT=latarcyrheb-sun16 rhgb rd.luks=0 LANG=en_US.UTF-8
kernel:         3.1.9-1.fc16.x86_64
reason:         WARNING: at lib/list_debug.c:30 __list_add+0x8f/0xa0()
time:           Khamis 19 Jan 2012 12:08:28  MYT

backtrace:
:WARNING: at lib/list_debug.c:30 __list_add+0x8f/0xa0()
:Hardware name: HP Compaq dc7700 Convertible Minitower
:list_add corruption. prev->next should be next (ffff8800cebaa858), but was           (null). (prev=ffff8800debaa858).
:Modules linked in: fuse hidp fcoe rfcomm libfcoe libfc scsi_transport_fc scsi_tgt 8021q garp stp llc bnep ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 nf_conntrack_ipv4 ip6table_filter nf_defrag_ipv4 ip6_tables xt_state nf_conntrack binfmt_misc snd_hda_codec_realtek btusb bluetooth snd_usb_audio snd_hda_intel snd_hda_codec snd_seq uvcvideo videodev media v4l2_compat_ioctl32 uinput serio_raw snd_pcm e1000e snd_hwdep snd_usbmidi_lib snd_rawmidi snd_seq_device snd_timer snd hp_wmi sparse_keymap arc4 ppdev iTCO_wdt parport_pc parport rt2800usb rt2800lib crc_ccitt rt2x00usb rt2x00lib mac80211 cfg80211 soundcore rfkill snd_page_alloc iTCO_vendor_support microcode nouveau ttm drm_kms_helper drm i2c_algo_bit i2c_core mxm_wmi wmi video [last unloaded: scsi_wait_scan]
:Pid: 4919, comm: kworker/u:2 Not tainted 3.1.9-1.fc16.x86_64 #1
:Call Trace:
: [<ffffffff8106b7ef>] warn_slowpath_common+0x7f/0xc0
: [<ffffffff8106b8e6>] warn_slowpath_fmt+0x46/0x50
: [<ffffffff812bceaf>] __list_add+0x8f/0xa0
: [<ffffffff813f918a>] usb_hcd_link_urb_to_ep+0x6a/0x90
: [<ffffffff814174f5>] ehci_urb_enqueue+0xa5/0x1080
: [<ffffffff812c4200>] ? swiotlb_dma_mapping_error+0x10/0x30
: [<ffffffff812c4820>] ? map_single+0x60/0x60
: [<ffffffff813fc2a0>] ? usb_free_urb+0x20/0x20
: [<ffffffff813fab01>] usb_hcd_submit_urb+0xb1/0x800
: [<ffffffff812ab936>] ? kref_put+0x36/0x70
: [<ffffffff813fc29a>] ? usb_free_urb+0x1a/0x20
: [<ffffffff813fd471>] ? usb_start_wait_urb+0xa1/0x160
: [<ffffffff813fc3de>] ? usb_alloc_urb+0x1e/0x50
: [<ffffffff813fbf34>] usb_submit_urb+0xf4/0x390
: [<ffffffff813fd433>] usb_start_wait_urb+0x63/0x160
: [<ffffffff813fc3de>] ? usb_alloc_urb+0x1e/0x50
: [<ffffffff813fc325>] ? usb_init_urb+0x55/0xf0
: [<ffffffff813fd7b6>] usb_control_msg+0xe6/0x120
: [<ffffffffa021fbe6>] rt2x00usb_vendor_request+0xc6/0x150 [rt2x00usb]
: [<ffffffffa021fd35>] rt2x00usb_vendor_req_buff_lock+0x85/0x150 [rt2x00usb]
: [<ffffffffa021fff5>] rt2x00usb_regbusy_read+0x85/0x110 [rt2x00usb]
: [<ffffffff8107c79d>] ? mod_timer+0x13d/0x2f0
: [<ffffffff8101a4f3>] ? native_sched_clock+0x13/0x80
: [<ffffffffa022a51a>] rt2800_mcu_request+0x6a/0xf0 [rt2800lib]
: [<ffffffffa020ea10>] ? rt2x00lib_suspend+0x50/0x50 [rt2x00lib]
: [<ffffffffa023686f>] rt2800usb_set_state+0x3f/0x50 [rt2800usb]
: [<ffffffffa0236b0d>] rt2800usb_set_device_state+0x16d/0x1c0 [rt2800usb]
: [<ffffffffa020ea52>] rt2x00lib_autowakeup+0x42/0xa0 [rt2x00lib]
: [<ffffffff8108853d>] process_one_work+0x11d/0x470
: [<ffffffff8108993f>] worker_thread+0x15f/0x350
: [<ffffffff810897e0>] ? manage_workers+0x230/0x230
: [<ffffffff8108df6c>] kthread+0x8c/0xa0
: [<ffffffff815df334>] kernel_thread_helper+0x4/0x10
: [<ffffffff8108dee0>] ? kthread_worker_fn+0x190/0x190
: [<ffffffff815df330>] ? gs_change+0x13/0x13

smolt_data:
:
:
:General
:=================================
:UUID: afb56d74-deda-4466-8790-a5f6f811ab26
:OS: Fedora release 16 (Verne)
:Default run level: Unknown
:Language: en_US.utf8
:Platform: x86_64
:BogoMIPS: 5981.50
:CPU Vendor: GenuineIntel
:CPU Model: Intel(R) Pentium(R) D CPU 3.00GHz
:CPU Stepping: 4
:CPU Family: 15
:CPU Model Num: 6
:Number of CPUs: 2
:CPU Speed: 3000
:System Memory: 3890
:System Swap: 5951
:Vendor: Hewlett-Packard
:System: HP Compaq dc7700 Convertible Minitower 
:Form factor: Mini Tower
:Kernel: 3.1.9-1.fc16.x86_64
:SELinux Enabled: 1
:SELinux Policy: targeted
:SELinux Enforce: Enforcing
:MythTV Remote: Unknown
:MythTV Role: Unknown
:MythTV Theme: Unknown
:MythTV Plugin: 
:MythTV Tuner: -1
:
:
:Devices
:=================================
:(32902:10272:4156:10242) pci, ata_piix, STORAGE, 82801H (ICH8 Family) 4 port SATA IDE Controller
:(32902:10303:4156:10242) pci, pcieport, PCI/PCI, 82801H (ICH8 Family) PCI Express Port 1
:(32902:10260:4156:10242) pci, None, PCI/ISA, 82801HO (ICH8DO) LPC Interface Controller
:(4318:479:5218:837) pci, nouveau, VIDEO, G71 [GeForce 7300 GS]
:(32902:10644:4156:10242) pci, None, SIMPLE, 82Q963/Q965 HECI Controller
:(32902:10315:4156:10242) pci, snd_hda_intel, MULTIMEDIA, HP Compaq dc7700p
:(32902:4170:4156:10240) pci, e1000e, ETHERNET, 82566DM Gigabit Network Connection
:(32902:10289:4156:10242) pci, uhci_hcd, USB, 82801H (ICH8 Family) USB UHCI Controller #2
:(32902:9294:4156:10242) pci, None, PCI/PCI, 82801 PCI Bridge
:(32902:10288:4156:10242) pci, uhci_hcd, USB, 82801H (ICH8 Family) USB UHCI Controller #1
:(32902:10292:4156:10242) pci, uhci_hcd, USB, 82801H (ICH8 Family) USB UHCI Controller #4
:(32902:10293:4156:10242) pci, uhci_hcd, USB, 82801H (ICH8 Family) USB UHCI Controller #5
:(32902:10640:4156:10242) pci, None, HOST/PCI, 82Q963/Q965 Memory Controller Hub
:(32902:10298:4156:10242) pci, ehci_hcd, USB, 82801H (ICH8 Family) USB2 EHCI Controller #2
:(32902:10294:4156:10242) pci, ehci_hcd, USB, 82801H (ICH8 Family) USB2 EHCI Controller #1
:(32902:10641:32902:0) pci, pcieport, PCI/PCI, 82Q963/Q965 PCI Express Root Port
:
:
:Filesystem Information
:=================================
:device mtpt type bsize frsize blocks bfree bavail file ffree favail
:-------------------------------------------------------------------
:/dev/sdb1 / ext4 4096 4096 60090240 58472385 57862130 15269888 15128757 15128757
:/dev/sda2 /home ext4 4096 4096 17604974 15357598 14463314 4472832 4463737 4463737
:/dev/sda1 /boot ext4 1024 1024 495844 409876 384276 128016 127782 127782
:/dev/sdb2 WITHHELD ext4 4096 4096 60089472 58045956 54993566 15269888 15264470 15264470
:
Comment 1 Josh Boyer 2012-01-18 16:35:41 UTC 
> list_add corruption. prev->next should be next (ffff8800cebaa858), but was    
>      (null). (prev=ffff8800debaa858).

You had a single bit flip in memory.  This is probably a transient error, but you might want to run memtest86+ on this machine for a while.
Comment 2 Stanislaw Gruszka 2012-01-20 07:34:05 UTC 
Can you recreate the problem somehow? If you would install kernel-debug does it print some other warnings?
Comment 3 Stanislaw Gruszka 2012-01-21 14:02:30 UTC 
Also, did you suspend or hibernate machine before that warning?
Comment 4 Stanislaw Gruszka 2012-01-31 17:31:53 UTC 
Closed with insufficient data. If info requested in comment 2 and 3 can be provided please reopen.