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SubjectRe: kernel BUG at mm/prio_tree.c:125
Date
On Wednesday 14 November 2007 10:04, Marc Donner wrote:
> hi
>
> i got this kernel bug on our production system, which is running since last
> saturday.
>
> anybody an idea??

Hugh might be of most help here, cc'ed.

But for the preliminary questions -- Is the bug reproduceable? And
if it is possible for you to test, is it reproduceable on the latest
kernel.org kernel? (2.6.23 or 2.6.24 prerelease) Does the machine
have ECC RAM or does it survive memtest?

Thanks for reporting,
Nick

>
> Marc
>
> uname -a
> Linux files 2.6.18-5-686-bigmem #1 SMP Thu Aug 30 03:25:44 UTC 2007 i686
> GNU/Linux
>
> Nov 13 16:55:24 files kernel: ------------[ cut here ]------------
> Nov 13 16:55:24 files kernel: kernel BUG at mm/prio_tree.c:125!
> Nov 13 16:55:24 files kernel: invalid opcode: 0000 [#1]
> Nov 13 16:55:24 files kernel: SMP
> Nov 13 16:55:24 files kernel: Modules linked in: button ac battery ipv6
> dm_snapshot dm_mirror dm_mod loop snd_via82xx gameport snd_ac97_codec
> snd_ac97_bus sn
> d_pcm snd_timer snd_page_alloc snd_mpu401_uart evdev snd_rawmidi
> snd_seq_device snd serio_raw via82cxxx_audio uart401 sound soundcore
> i2c_viapro ac97_codec p
> smouse i2c_core rtc pcspkr via_agp agpgart shpchp pci_hotplug raid10
> raid456 xor multipath linear ide_generic via_rhine mii ehci_hcd uhci_hcd
> usbcore ide_dis
> k thermal fan freq_table processor raid1 raid0 md_mod ahci sata_nv sata_sil
> sata_via libata via82cxxx ide_core 3w_9xxx 3w_xxxx scsi_mod xfs ext3 jbd
> ext2 mbc
> ache reiserfs
> Nov 13 16:55:24 files kernel: CPU: 0
> Nov 13 16:55:24 files kernel: EIP: 0060:[<c0147ad5>] Not tainted VLI
> Nov 13 16:55:24 files kernel: EFLAGS: 00210217 (2.6.18-5-686-bigmem #1)
> Nov 13 16:55:24 files kernel: EIP is at vma_prio_tree_remove+0x46/0xcd
> Nov 13 16:55:24 files kernel: eax: ee09238c ebx: f2806b58 ecx: ee09238c
> edx: f2806b70
> Nov 13 16:55:24 files kernel: esi: c85c0f40 edi: f3970524 ebp: b69f4000
> esp: d8e95f1c
> Nov 13 16:55:24 files kernel: ds: 007b es: 007b ss: 0068
> Nov 13 16:55:24 files kernel: Process apache (pid: 31369, ti=d8e94000
> task=f7cffaa0 task.ti=d8e94000)
> Nov 13 16:55:24 files kernel: Stack: f2806b70 f2806b58 c85c0f40 ee09238c
> b69f4000 c014cce1 c17e5ee0 ee09238c
> Nov 13 16:55:24 files kernel: f37a238c c014bec2 b69f4000 d8e95f6c
> c17e5ee0 f3cd4740 ee092b1c f37a243c
> Nov 13 16:55:24 files kernel: c014c9f7 b6d87000 ee09238c 000000d7
> c17e5ee0 f3cd4740 ee0925f4 ee09238c
> Nov 13 16:55:24 files kernel: Call Trace:
> Nov 13 16:55:24 files kernel: [<c014cce1>] unlink_file_vma+0x25/0x2e
> Nov 13 16:55:24 files kernel: [<c014bec2>] free_pgtables+0x26/0x78
> Nov 13 16:55:24 files kernel: [<c014c9f7>] unmap_region+0xbb/0xf3
> Nov 13 16:55:24 files kernel: [<c014d2d7>] do_munmap+0x148/0x19b
> Nov 13 16:55:24 files kernel: [<c014d35d>] sys_munmap+0x33/0x41
> Nov 13 16:55:24 files kernel: [<c0102c0d>] sysenter_past_esp+0x56/0x79
> Nov 13 16:55:24 files kernel: Code: 16 8b 50 28 8b 43 04 89 42 04 89 10 89
> 5b 04 89 59 28 e9 92 00 00 00 8b 04 24 89 da 59 5b 5e 5f 5d e9 a4 04 07 00
> 39 47 3
> 4 74 08 <0f> 0b 7d 00 5e a2 29 c0 83 79 30 00 74 38 8b 77 28 8d 57 28 8d
> Nov 13 16:55:24 files kernel: EIP: [<c0147ad5>]
> vma_prio_tree_remove+0x46/0xcd SS:ESP 0068:d8e95f1c
>
> Nov 13 16:55:37 files postfix/master[3582]: warning: process
> /usr/lib/postfix/smtpd pid 1044 killed by signal 11
> Nov 13 16:55:37 files postfix/master[3582]: warning:
> /usr/lib/postfix/smtpd: bad command startup -- throttling
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