Bug 590422

Summary:	Panic upon poweroff
Product:	Red Hat Enterprise Linux 6	Reporter:	Lubomir Rintel <lkundrak>
Component:	kernel	Assignee:	John Feeney <jfeeney>
Status:	CLOSED DUPLICATE	QA Contact:	Red Hat Kernel QE team <kernel-qe>
Severity:	medium	Docs Contact:
Priority:	low
Version:	6.0	CC:	arozansk
Target Milestone:	rc	Keywords:	Patch
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2010-05-17 18:45:48 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Lubomir Rintel 2010-05-09 13:38:20 UTC

Description of problem:

A BUG_ON is triggered on poweroff.

Version-Release number of selected component (if applicable):

kernel-2.6.32-19.el6

Actual results:

poweroff -f
------------[ cut here ]------------
kernel BUG at kernel/time/clockevents.c:262!
invalid opcode: 0000 [#1] SMP 
last sysfs file: /sys/devices/pci0000:00/0000:00:1e.0/0000:01:0c.0/local_cpus
Modules linked in: p4_clockmod(U) ip6t_REJECT(U) nf_conntrack_ipv6(U) ip6table_filter(U) ip6_tables(U) ipv6(U) dm_mirror(U) dm_region_hash(U) dm_log(U) uinput(U) snd_intel8x0(U) snd_ac97_codec(U) ac97_bus(U) snd_seq(U) snd_seq_device(U) ppdev(U) snd_pcm(U) parport_pc(U) parport(U) iTCO_wdt(U) iTCO_vendor_support(U) snd_timer(U) ne2k_pci(U) dcdbas(U) sg(U) snd(U) e1000(U) 8390(U) serio_raw(U) soundcore(U) i2c_i801(U) snd_page_alloc(U) ext4(U) mbcache(U) jbd2(U) dm_snapshot(U) squashfs(U) vfat(U) fat(U) dm_multipath(U) sr_mod(U) sd_mod(U) cdrom(U) crc_t10dif(U) pata_acpi(U) ata_generic(U) ata_piix(U) i915(U) drm_kms_helper(U) usb_storage(U) drm(U) i2c_algo_bit(U) i2c_core(U) video(U) output(U) dm_mod(U) [last unloaded: scsi_wait_scan]

Pid: 1572, comm: poweroff Not tainted (2.6.32-19.el6.i686 #1) OptiPlex GX270               
EIP: 0060:[<c047ba07>] EFLAGS: 00010006 CPU: 0
EIP is at clockevents_notify+0xd7/0xe0
EAX: 00000003 EBX: c09db380 ECX: ffffffff EDX: 00000001
ESI: c09dd434 EDI: 00000282 EBP: c09dd400 ESP: f3f77dc8
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process poweroff (pid: 1572, ti=f3f76000 task=f3ea6a90 task.ti=f3f76000)
Stack:
 00000001 00000001 00000000 c0a1a934 fffffffa c0802ede 00000040 f707c000
<0> c0af0520 c0802e30 c04a94ed 00000001 c0a1a998 00000000 c0a1a934 fffffffa
<0> c080a2d6 00000017 00000001 00000010 00000001 00000000 c0a34188 c04734f7
Call Trace:
 [<c0802ede>] ? hrtimer_cpu_notify+0x8b/0x197
 [<c0802e30>] ? timer_cpu_notify+0x233/0x251
 [<c04a94ed>] ? rcu_adopt_orphan_cbs+0x1d/0x80
 [<c080a2d6>] ? notifier_call_chain+0x36/0x70
 [<c04734f7>] ? raw_notifier_call_chain+0x17/0x20
 [<c07f2609>] ? _cpu_down+0x109/0x290
 [<c044fa4f>] ? disable_nonboot_cpus+0xbf/0x130
 [<c0620fb5>] ? acpi_os_signal_semaphore+0x51/0x59
 [<c0644fb0>] ? acpi_ut_release_mutex+0x84/0x89
 [<c0467f3d>] ? kernel_power_off+0x1d/0x40
 [<c0468208>] ? sys_reboot+0x118/0x1d0
 [<c074f163>] ? sys_recvfrom+0xf3/0x160
 [<c05d757b>] ? radix_tree_delete+0x10b/0x240
 [<c0753e48>] ? skb_dequeue+0x48/0x70
 [<c05442ca>] ? fsnotify_clear_marks_by_inode+0x1a/0xb0
 [<c04a235c>] ? audit_syscall_entry+0x1fc/0x220
 [<c0513d34>] ? __fput+0x164/0x1f0
 [<c0413686>] ? syscall_trace_enter+0x146/0x1a0
 [<c040a4dc>] ? syscall_call+0x7/0xb
Code: c9 74 e1 8b 00 89 14 24 e8 b7 40 16 00 8b 14 24 83 f8 01 75 cf 8b 45 3c 85 c0 75 0f 89 f0 89 14 24 e8 8e 41 16 00 8b 14 24 eb b9 <0f> 0b eb fe 90 8d 74 26 00 57 56 53 8b 48 3c 89 c3 85 c9 75 73 
EIP: [<c047ba07>] clockevents_notify+0xd7/0xe0 SS:ESP 0068:f3f77dc8
---[ end trace a465ef1404d5542c ]---
Kernel panic - not syncing: Fatal exception
Pid: 1572, comm: poweroff Tainted: G      D    2.6.32-19.el6.i686 #1
Call Trace:
 [<c08055d5>] ? panic+0x42/0xed
 [<c0808bfc>] ? oops_end+0xbc/0xd0
 [<c040ba90>] ? do_invalid_op+0x0/0x90
 [<c040bb0f>] ? do_invalid_op+0x7f/0x90
 [<c047ba07>] ? clockevents_notify+0xd7/0xe0
 [<c08060ba>] ? schedule+0x88a/0xae0
 [<c04c54e9>] ? cpupri_set+0xb9/0x120
 [<c04101c8>] ? sched_clock+0x8/0x10
 [<c0474204>] ? sched_clock_local+0xa4/0x180
 [<c047bf6f>] ? tick_notify+0xcf/0x3a0
 [<c0807fcb>] ? error_code+0x73/0x78
 [<c047ba07>] ? clockevents_notify+0xd7/0xe0
 [<c0802ede>] ? hrtimer_cpu_notify+0x8b/0x197
 [<c0802e30>] ? timer_cpu_notify+0x233/0x251
 [<c04a94ed>] ? rcu_adopt_orphan_cbs+0x1d/0x80
 [<c080a2d6>] ? notifier_call_chain+0x36/0x70
 [<c04734f7>] ? raw_notifier_call_chain+0x17/0x20
 [<c07f2609>] ? _cpu_down+0x109/0x290
 [<c044fa4f>] ? disable_nonboot_cpus+0xbf/0x130
 [<c0620fb5>] ? acpi_os_signal_semaphore+0x51/0x59
 [<c0644fb0>] ? acpi_ut_release_mutex+0x84/0x89
 [<c0467f3d>] ? kernel_power_off+0x1d/0x40
 [<c0468208>] ? sys_reboot+0x118/0x1d0
 [<c074f163>] ? sys_recvfrom+0xf3/0x160
 [<c05d757b>] ? radix_tree_delete+0x10b/0x240
 [<c0753e48>] ? skb_dequeue+0x48/0x70
 [<c05442ca>] ? fsnotify_clear_marks_by_inode+0x1a/0xb0
 [<c04a235c>] ? audit_syscall_entry+0x1fc/0x220
 [<c0513d34>] ? __fput+0x164/0x1f0
 [<c0413686>] ? syscall_trace_enter+0x146/0x1a0
 [<c040a4dc>] ? syscall_call+0x7/0xb

Additional info:

This was apparently caused by a chceck added by stable-clockevents-Prevent-clockevent_devices-list-corruption-on-cpu-hotplug.patch

Comment 1 Lubomir Rintel 2010-05-09 13:39:01 UTC

A fix is already present in upstream tree, commit ea9d8e3f45404d411c00ae67b45cc35c58265bb7

Comment 3 RHEL Program Management 2010-05-09 15:01:13 UTC

This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release.  Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release.  This request is not yet committed for
inclusion.

Comment 4 Matthew Garrett 2010-05-17 18:45:48 UTC

ea9d8e3f45404d411c00ae67b45cc35c58265bb7 is present in our kernel as 0b2e8c102841b95607a30a558e345c651c6ce449.

*** This bug has been marked as a duplicate of bug 572438 ***