Description of problem: Not sure. I just was viewing logs and saw error report. Jan 18 04:02:50 web kernel: ------------[ cut here ]------------ Jan 18 04:02:50 web kernel: kernel BUG at lib/list_debug.c:65! Jan 18 04:02:50 web kernel: invalid opcode: 0000 [#1] Jan 18 04:02:50 web kernel: SMP Jan 18 04:02:50 web kernel: last sysfs file: /block/ram0/dev Jan 18 04:02:50 web kernel: Modules linked in: cifs ip_conntrack_netbios_ns iptable_nat ip_nat ip_conntrack nfnetlink iptable_mangle iptable_filter ip_tables x_tables nls_utf8 autofs4 hidp rfcomm l2cap bluetooth sunrpc ipv6 dm_multipath parport_pc lp parport floppy snd_intel8x0 snd_ac97_codec snd_ac97_bus snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss ohci1394 i2c_i810 snd_pcm i2c_algo_bit i2c_i801 ieee1394 i2c_core snd_timer snd soundcore snd_page_alloc ide_cd 8139too cdrom serio_raw 8139cp pcspkr mii dm_snapshot dm_zero dm_mirror dm_mod ext3 jbd ehci_hcd ohci_hcd uhci_hcd Jan 18 04:02:50 web kernel: CPU: 0 Jan 18 04:02:50 web kernel: EIP: 0060:[<c04e555b>] Not tainted VLI Jan 18 04:02:50 web kernel: EFLAGS: 00010086 (2.6.18-1.2798.fc6 #1) Jan 18 04:02:50 web kernel: EIP is at list_del+0x23/0x6c Jan 18 04:02:50 web kernel: eax: 00000048 ebx: e1e12aa0 ecx: c0671c50 edx: 00000086 Jan 18 04:02:50 web kernel: esi: efced6c0 edi: c6f9e000 ebp: efcefe80 esp: efcdfef8 Jan 18 04:02:50 web kernel: ds: 007b es: 007b ss: 0068 Jan 18 04:02:50 web kernel: Process events/0 (pid: 5, ti=efcdf000 task=efa80030 task.ti=efcdf000) Jan 18 04:02:51 web kernel: Stack: c0636fcc e1e12aa0 ab72c7e1 e1e12aa0 c04671cc efcc3b80 00000005 00000001 Jan 18 04:02:51 web kernel: efcedee4 efcedee0 00000005 efcedec0 00000000 c04672cf 00000000 00000000 Jan 18 04:02:51 web kernel: efcefe80 efced6e4 efced6c0 efcefe80 c16f33c0 00000282 c04686f1 00000000 Jan 18 04:02:51 web kernel: Call Trace: Jan 18 04:02:51 web kernel: [<c04671cc>] free_block+0x63/0xdc Jan 18 04:02:51 web kernel: [<c04672cf>] drain_array+0x8a/0xb5 Jan 18 04:02:51 web kernel: [<c04686f1>] cache_reap+0x53/0x117 Jan 18 04:02:51 web kernel: [<c042fa48>] run_workqueue+0x83/0xc5 Jan 18 04:02:51 web kernel: [<c0430340>] worker_thread+0xd9/0x10d Jan 18 04:02:51 web kernel: [<c0432807>] kthread+0xc0/0xed Jan 18 04:02:51 web kernel: [<c0405447>] kernel_thread_helper+0x7/0x10 Jan 18 04:02:51 web kernel: DWARF2 unwinder stuck at kernel_thread_helper+0x7/0x10 Jan 18 04:02:51 web kernel: Leftover inexact backtrace: Jan 18 04:02:51 web kernel: ======================= Jan 18 04:02:52 web kernel: Code: 00 00 89 c3 eb e8 90 90 53 89 c3 83 ec 0c 8b 40 04 8b 00 39 d8 74 1c 89 5c 24 04 89 44 24 08 c7 04 24 cc 6f 63 c0 e8 52 c0 f3 ff <0f> 0b 41 00 09 70 63 c0 8b 03 8b 40 04 39 d8 74 1c 89 5c 24 04 Jan 18 04:02:52 web kernel: EIP: [<c04e555b>] list_del+0x23/0x6c SS:ESP 0068:efcdfef8 Jan 18 04:02:52 web kernel: <3>BUG: sleeping function called from invalid context at kernel/rwsem.c:20 Jan 18 04:02:52 web kernel: in_atomic():0, irqs_disabled():1 Jan 18 04:02:52 web kernel: [<c0405876>] dump_trace+0x69/0x1af Jan 18 04:02:52 web kernel: [<c04059d4>] show_trace_log_lvl+0x18/0x2c Jan 18 04:02:52 web kernel: [<c0405f83>] show_trace+0xf/0x11 Jan 18 04:02:52 web kernel: [<c0406080>] dump_stack+0x15/0x17 Jan 18 04:02:52 web kernel: [<c043527e>] down_read+0x12/0x20 Jan 18 04:02:52 web kernel: [<c042d420>] blocking_notifier_call_chain+0xe/0x29 Jan 18 04:02:52 web kernel: [<c0423411>] do_exit+0x1b/0x776 Jan 18 04:02:52 web kernel: [<c0405f24>] die+0x298/0x2bd Jan 18 04:02:52 web kernel: [<c0406669>] do_invalid_op+0xa2/0xab Jan 18 04:02:52 web kernel: [<c04051e9>] error_code+0x39/0x40 Jan 18 04:02:52 web kernel: DWARF2 unwinder stuck at error_code+0x39/0x40 Jan 18 04:02:52 web kernel: Leftover inexact backtrace: Jan 18 04:02:52 web kernel: [<c04e555b>] list_del+0x23/0x6c Jan 18 04:02:52 web kernel: [<c04671cc>] free_block+0x63/0xdc Jan 18 04:02:52 web kernel: [<c04672cf>] drain_array+0x8a/0xb5 Jan 18 04:02:53 web kernel: [<c04686f1>] cache_reap+0x53/0x117 Jan 18 04:02:53 web kernel: [<c042fa48>] run_workqueue+0x83/0xc5 Jan 18 04:02:53 web kernel: [<c046869e>] cache_reap+0x0/0x117 Jan 18 04:02:53 web kernel: [<c0430340>] worker_thread+0xd9/0x10d Jan 18 04:02:53 web kernel: [<c041ae7f>] default_wake_function+0x0/0xc Jan 18 04:02:53 web kernel: [<c0430267>] worker_thread+0x0/0x10d Jan 18 04:02:53 web kernel: [<c0432807>] kthread+0xc0/0xed Jan 18 04:02:53 web kernel: [<c0432747>] kthread+0x0/0xed Jan 18 04:02:53 web kernel: [<c0405447>] kernel_thread_helper+0x7/0x10 Jan 18 04:02:53 web kernel: ======================= Version-Release number of selected component (if applicable): How reproducible: only noted in log, only noted one time Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info:
I see a very similar thing, happens perhaps once a week (output from Feb 13th): BUG: unable to handle kernel paging request at virtual address 00002074 printing eip: c04f3b55 *pde = 71bb1067 Oops: 0000 [#1] SMP last sysfs file: /class/scsi_host/host2/proc_name Modules linked in: hwmon i2c_isa eeprom sunrpc ipv6 ip_nat_sip ip_nat_pptp ip_nat_ftp ip_conntrack_sip ip_conntrack_pptp ip_conntrack_ftp xt_helper ipt_LOG xt_state xt_tcpudp iptable_mangle iptable_nat ip_nat ip_conntrack nfnetlink iptable_filter ip_tables x_tables dm_mirror dm_multipath dm_mod video sbs i2c_ec button battery asus_acpi ac lp snd_hda_intel snd_hda_codec snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss sg snd_pcm snd_timer ide_cd floppy snd serio_raw cdrom sky2 ohci1394 ieee1394 soundcore pcspkr iTCO_wdt skge i2c_i801 snd_page_alloc i2c_core parport_pc parport ata_piix libata aacraid sd_mod scsi_mod ext3 jbd ehci_hcd ohci_hcd uhci_hcd CPU: 0 EIP: 0060:[<c04f3b55>] Not tainted VLI EFLAGS: 00010046 (2.6.19-1.2895.fc6 #1) EIP is at list_del+0x2d/0x6c eax: 00002070 ebx: f76f0f80 ecx: 00000001 edx: 00000000 esi: f7ff8dc0 edi: d6ca8000 ebp: f7e6f380 esp: f7fefef0 ds: 007b es: 007b ss: 0068 Process events/0 (pid: 8, ti=f7fef000 task=f7e205d0 task.ti=f7fef000) Stack: f7e205d0 d7ade040 f7ff8d40 f76f0f80 c04717fc f703e0c0 c07a2fc8 f703e0c0 00000001 00000000 f7ff8e60 f7ff8e60 00000001 f7ff8e40 00000000 c04718ff 00000000 00000000 f7e6f380 f7ff8de4 f7ff8dc0 f7e6f380 f7e0bac0 00000282 Call Trace: [<c04717fc>] free_block+0x77/0xf0 [<c04718ff>] drain_array+0x8a/0xb5 [<c0472e9c>] cache_reap+0x53/0x117 [<c04368c7>] run_workqueue+0x97/0xdd [<c0437284>] worker_thread+0xd9/0x10d [<c0439810>] kthread+0xc0/0xec [<c0404c03>] kernel_thread_helper+0x7/0x10 ======================= Code: c3 83 ec 0c 8b 40 04 8b 00 39 d8 74 1c 89 5c 24 04 89 44 24 08 c7 04 24 bc 7e 65 c0 e8 86 3f f3 ff 0f 0b 41 00 f9 7e 65 c0 8b 03 <8b> 40 04 39 d8 74 1c 89 5c 24 04 89 44 24 08 c7 04 24 0a 7f 65 EIP: [<c04f3b55>] list_del+0x2d/0x6c SS:ESP 0068:f7fefef0 <3>BUG: sleeping function called from invalid context at kernel/rwsem.c:20 in_atomic():0, irqs_disabled():1 [<c0405018>] dump_trace+0x69/0x1b6 [<c040517d>] show_trace_log_lvl+0x18/0x2c [<c0405778>] show_trace+0xf/0x11 [<c0405875>] dump_stack+0x15/0x17 [<c043c402>] down_read+0x12/0x28 [<c0433efe>] blocking_notifier_call_chain+0xe/0x29 [<c0429f94>] do_exit+0x1b/0x787 [<c0405719>] die+0x2c3/0x2e8 [<c0627475>] do_page_fault+0x41c/0x4ef [<c0625ce1>] error_code+0x39/0x40 [<c04f3b55>] list_del+0x2d/0x6c [<c04717fc>] free_block+0x77/0xf0 [<c04718ff>] drain_array+0x8a/0xb5 [<c0472e9c>] cache_reap+0x53/0x117 [<c04368c7>] run_workqueue+0x97/0xdd [<c0437284>] worker_thread+0xd9/0x10d [<c0439810>] kthread+0xc0/0xec [<c0404c03>] kernel_thread_helper+0x7/0x10 ======================= BUG: spinlock lockup on CPU#0, submit_check_re/26666, f7ff8de4 (Not tainted) [<c0405018>] dump_trace+0x69/0x1b6 [<c040517d>] show_trace_log_lvl+0x18/0x2c [<c0405778>] show_trace+0xf/0x11 [<c0405875>] dump_stack+0x15/0x17 [<c04f39af>] _raw_spin_lock+0xbf/0xdc [<c0471b28>] cache_alloc_refill+0x74/0x4d0 [<c0471aaa>] kmem_cache_alloc+0x50/0x5a [<c047d2e6>] getname+0x1a/0xb0 [<c0402323>] sys_execve+0xe/0x4f [<c040404b>] syscall_call+0x7/0xb [<004d4402>] 0x4d4402 ======================= Or before on the 5th (in this case the kernel is tainted since I had the nvida module loaded): Feb 5 20:36:48 blue kernel: BUG: unable to handle kernel paging request at virtual address 00002074 Feb 5 20:36:48 blue kernel: printing eip: Feb 5 20:36:48 blue kernel: c04f3b55 Feb 5 20:36:48 blue kernel: *pde = 6f02d067 Feb 5 20:36:48 blue kernel: Oops: 0000 [#1] Feb 5 20:36:48 blue kernel: SMP Feb 5 20:36:48 blue kernel: last sysfs file: /class/scsi_host/host2/proc_name Feb 5 20:36:48 blue kernel: Modules linked in: autofs4 hwmon i2c_isa eeprom hidp l2cap bluetooth sunrpc ipv6 ip_nat_sip ip_nat_pptp ip_nat_ftp ip_conntrack_sip ip_conntrack_pptp ip_conntrack_ftp xt_helper ipt_LOG xt_state xt_tcpudp iptable_mangle iptable_nat ip_nat ip_conntrack nfnetlink iptable_filter ip_tables x_tables dm_mirror dm_multipath dm_mod video sbs i2c_ec button battery asus_acpi ac lp sg snd_hda_intel snd_hda_codec snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss snd_pcm snd_timer ohci1394 snd soundcore ieee1394 ide_cd parport_pc pcspkr iTCO_wdt serio_raw snd_page_alloc skge sky2 cdrom parport nvidia(P)(U) i2c_i801 floppy i2c_core ata_piix libata aacraid sd_mod scsi_mod ext3 jbd ehci_hcd ohci_hcd uhci_hcd Feb 5 20:36:48 blue kernel: CPU: 1 Feb 5 20:36:48 blue kernel: EIP: 0060:[<c04f3b55>] Tainted: P VLI Feb 5 20:36:48 blue kernel: EFLAGS: 00010046 (2.6.19-1.2895.fc6 #1) Feb 5 20:36:48 blue kernel: EIP is at list_del+0x2d/0x6c Feb 5 20:36:48 blue kernel: eax: 00002070 ebx: c21cf880 ecx: c21cf4e0 edx: 00000000 Feb 5 20:36:48 blue kernel: esi: f7ff8dc0 edi: f0a3c000 ebp: f7e6f380 esp: f7feeef0 Feb 5 20:36:48 blue kernel: ds: 007b es: 007b ss: 0068 Feb 5 20:36:48 blue kernel: Process events/1 (pid: 9, ti=f7fee000 task=f7e20070 task.ti=f7fee000) Feb 5 20:36:48 blue kernel: Stack: f7e20070 c21cf4c0 f7ff8dc0 c21cf880 c04717fc f71398c0 f7e5cfb0 f71398c0 Feb 5 20:36:48 blue kernel: 00000005 00000002 c21172e8 c21172e0 00000005 c21172c0 00000000 c04718ff Feb 5 20:36:48 blue kernel: 00000000 00000000 f7e6f380 f7ff8de4 f7ff8dc0 f7e6f380 f7e0bcc0 00000282 Feb 5 20:36:48 blue kernel: Call Trace: Feb 5 20:36:48 blue kernel: [<c04717fc>] free_block+0x77/0xf0 Feb 5 20:36:48 blue kernel: [<c04718ff>] drain_array+0x8a/0xb5 Feb 5 20:36:48 blue kernel: [<c0472e9c>] cache_reap+0x53/0x117 Feb 5 20:36:48 blue kernel: [<c04368c7>] run_workqueue+0x97/0xdd Feb 5 20:36:48 blue kernel: [<c0437284>] worker_thread+0xd9/0x10d Feb 5 20:36:48 blue kernel: [<c0439810>] kthread+0xc0/0xec Feb 5 20:36:49 blue kernel: [<c0404c03>] kernel_thread_helper+0x7/0x10 Feb 5 20:36:49 blue kernel: ======================= Feb 5 20:36:49 blue kernel: Code: c3 83 ec 0c 8b 40 04 8b 00 39 d8 74 1c 89 5c 24 04 89 44 24 08 c7 04 24 bc 7e 65 c0 e8 86 3f f3 ff 0f 0b 41 00 f9 7e 65 c0 8b 03 <8b> 40 04 39 d8 74 1c 89 5c 24 04 89 44 24 08 c7 04 24 0a 7f 65 Feb 5 20:36:49 blue kernel: EIP: [<c04f3b55>] list_del+0x2d/0x6c SS:ESP 0068: f7feeef0 Feb 5 20:36:49 blue kernel: <3>BUG: sleeping function called from invalid context at kernel/rwsem.c:20 Feb 5 20:36:49 blue kernel: in_atomic():0, irqs_disabled():1 Feb 5 20:36:49 blue kernel: [<c0405018>] dump_trace+0x69/0x1b6 Feb 5 20:36:49 blue kernel: [<c040517d>] show_trace_log_lvl+0x18/0x2c Feb 5 20:36:49 blue kernel: [<c0405778>] show_trace+0xf/0x11 Feb 5 20:36:49 blue kernel: [<c0405875>] dump_stack+0x15/0x17 Feb 5 20:36:49 blue kernel: [<c043c402>] down_read+0x12/0x28 Feb 5 20:36:49 blue kernel: [<c0433efe>] blocking_notifier_call_chain+0xe/0x29 Feb 5 20:36:49 blue kernel: [<c0429f94>] do_exit+0x1b/0x787 Feb 5 20:36:49 blue kernel: [<c0405719>] die+0x2c3/0x2e8 Feb 5 20:36:49 blue kernel: [<c0627475>] do_page_fault+0x41c/0x4ef Feb 5 20:36:49 blue kernel: [<c0625ce1>] error_code+0x39/0x40 Feb 5 20:36:49 blue kernel: [<c04f3b55>] list_del+0x2d/0x6c Feb 5 20:36:49 blue kernel: [<c04717fc>] free_block+0x77/0xf0 Feb 5 20:36:50 blue kernel: [<c04718ff>] drain_array+0x8a/0xb5 Feb 5 20:36:50 blue kernel: [<c0472e9c>] cache_reap+0x53/0x117 Feb 5 20:36:50 blue kernel: [<c04368c7>] run_workqueue+0x97/0xdd Feb 5 20:36:50 blue kernel: [<c0437284>] worker_thread+0xd9/0x10d Feb 5 20:36:50 blue kernel: [<c0439810>] kthread+0xc0/0xec Feb 5 20:36:50 blue kernel: [<c0404c03>] kernel_thread_helper+0x7/0x10 Feb 5 20:36:50 blue kernel: ======================= Let me know if you need additional information.
I still have the same problem happening perhaps once a week also with newer kernels (tested up to and including 2.6.20-1.2944.fc6).
This appears to be a dupe of bug 224359, please reopen if this is still occurring in recent kernels. *** This bug has been marked as a duplicate of 224359 ***