Kernel Panic

Support and queries relating to third party Live CDs and DVD, VM images and other packaged distributions
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jamescollings
Posts: 59
Joined: Wed Nov 22, 2006 11:26 am
Location: Bucks, UK

Kernel Panic

Post by jamescollings » Sat Dec 23, 2006 3:29 pm

Just suffered my first kernel panic..
Hunting around has led me to the /var/log/kernel/errors
Dec 22 04:08:11 zm kernel: Unable to handle kernel paging request at virtual address fdffffff
Dec 22 04:08:11 zm kernel: printing eip:
Dec 22 04:08:11 zm kernel: *pde = 00000000
Dec 22 04:08:11 zm kernel: Oops: 0002 [#1]
Dec 22 04:08:11 zm kernel: SMP
/var/log/kernel/warnings said
Dec 22 04:08:11 zm kernel: c01acc16
Sorry to be stupid (and having "grown up" with SysV R3 Unix back in the 90s).... but what do I do now? Where do I look next to workout the problem.

I'm running the LiveCD.

Thanks

jamescollings
Posts: 59
Joined: Wed Nov 22, 2006 11:26 am
Location: Bucks, UK

And Another

Post by jamescollings » Sun Dec 24, 2006 9:07 am

.. got another one
/var/log/kernel/errors
Dec 23 17:07:36 zm kernel: Unable to handle kernel NULL pointer dereference at virtual address 00000020
Dec 23 17:07:36 zm kernel: printing eip:
Dec 23 17:07:36 zm kernel: *pde = 00000000
Dec 23 17:07:36 zm kernel: Oops: 0000 [#1]
Dec 23 17:07:36 zm kernel: SMP
Dec 23 17:07:36 zm kernel: CPU: 0
Dec 23 17:07:36 zm kernel: EIP is at find_get_pages+0x6e/0x80
Dec 23 17:07:36 zm kernel: eax: 8001002c ebx: 00000008 ecx: 00000020 edx: c1a07ef4
Dec 23 17:07:36 zm kernel: esi: 00000009 edi: c4e50b34 ebp: c1a07ed4 esp: c1a07e90
Dec 23 17:07:36 zm kernel: ds: 007b es: 007b ss: 0068
Dec 23 17:07:36 zm kernel: Process rm (pid: 8817, threadinfo=c1a06000 task=cbe67050)
Dec 23 17:07:36 zm kernel: Stack: <0>0000000e 00000000 c1a07ecc 00000000 ffffffff c014b992 c1a07ed4 00000000
Dec 23 17:07:36 zm kernel: 00000000 c014c41f 0000000e 000001f8 c4e50b34 00000000 00000000 00000000
Dec 23 17:07:36 zm kernel: 00000000 c10b1ac0 c11fb6e0 c1038fe0 c102c600 c102a620 c109b6a0 c1187a20
Dec 23 17:07:36 zm kernel: Call Trace:
Dec 23 17:07:36 zm kernel: [pagevec_lookup+34/48] pagevec_lookup+0x22/0x30
Dec 23 17:07:36 zm kernel: [<c014b992>] pagevec_lookup+0x22/0x30
Dec 23 17:07:36 zm kernel: [truncate_inode_pages_range+223/752] truncate_inode_pages_range+0xdf/0x2f0
Dec 23 17:07:36 zm kernel: [<c014c41f>] truncate_inode_pages_range+0xdf/0x2f0
Dec 23 17:07:36 zm kernel: [inotify_inode_is_dead+23/144] inotify_inode_is_dead+0x17/0x90
Dec 23 17:07:36 zm kernel: [<c018b587>] inotify_inode_is_dead+0x17/0x90
Dec 23 17:07:36 zm kernel: [ext2_delete_inode+0/128] ext2_delete_inode+0x0/0x80
Dec 23 17:07:36 zm kernel: [<c01aa4e0>] ext2_delete_inode+0x0/0x80
Dec 23 17:07:37 zm kernel: [truncate_inode_pages+23/32] truncate_inode_pages+0x17/0x20
Dec 23 17:07:37 zm kernel: [<c014c647>] truncate_inode_pages+0x17/0x20
Dec 23 17:07:37 zm kernel: [ext2_delete_inode+18/128] ext2_delete_inode+0x12/0x80
Dec 23 17:07:37 zm kernel: [<c01aa4f2>] ext2_delete_inode+0x12/0x80
Dec 23 17:07:37 zm kernel: [generic_delete_inode+123/288] generic_delete_inode+0x7b/0x120
Dec 23 17:07:37 zm kernel: [<c017d34b>] generic_delete_inode+0x7b/0x120
Dec 23 17:07:37 zm kernel: [iput+92/112] iput+0x5c/0x70
Dec 23 17:07:37 zm kernel: [<c017c32c>] iput+0x5c/0x70
Dec 23 17:07:37 zm kernel: [do_unlinkat+237/320] do_unlinkat+0xed/0x140
Dec 23 17:07:37 zm kernel: [<c017366d>] do_unlinkat+0xed/0x140
Dec 23 17:07:37 zm kernel: [filldir64+0/224] filldir64+0x0/0xe0
Dec 23 17:07:37 zm kernel: [<c0175e40>] filldir64+0x0/0xe0
Dec 23 17:07:37 zm kernel: [vfs_readdir+133/176] vfs_readdir+0x85/0xb0
Dec 23 17:07:37 zm kernel: [<c0175cf5>] vfs_readdir+0x85/0xb0
Dec 23 17:07:37 zm kernel: [sys_getdents64+183/208] sys_getdents64+0xb7/0xd0
Dec 23 17:07:37 zm kernel: [<c0175fd7>] sys_getdents64+0xb7/0xd0
Dec 23 17:07:37 zm kernel: [sysenter_past_esp+84/117] sysenter_past_esp+0x54/0x75
Dec 23 17:07:37 zm kernel: [<c0102e5b>] sysenter_past_esp+0x54/0x75
Dec 23 17:07:37 zm kernel: Code: 24 04 8b 74 24 08 8b 7c 24 0c 8b 6c 24 10 83 c4 14 c3 89 ea 31 db eb 11 90 8d 74 26 00 f0 ff 41 04 43 83 c2 04 39 de 74 ce 8b 0a <8b> 01 f6 c4 40 74 eb 8b 49 0c eb e6 8d b6 00 00 00 00 83 ec 1c
Warnings says:
Dec 23 17:07:36 zm kernel: c014417e
Dec 23 17:07:36 zm kernel: Modules linked in: snd_seq_dummy snd_seq_oss snd_seq_midi_event snd_seq snd_pcm_oss snd_mixer_oss snd_ens1371 gameport snd_rawmidi snd_seq_device snd_ac97_codec snd_ac97_bus snd_pcm snd_timer snd_page_alloc snd soundcore parport_pc lp parport ipt_REJECT ipt_LOG xt_tcpudp xt_state xt_pkttype xt_CONNMARK xt_MARK xt_connmark ipt_owner ipt_recent ipt_iprange xt_physdev ipt_multiport xt_conntrack iptable_mangle ip_nat_irc ip_nat_tftp ip_nat_ftp iptable_nat ip_nat ip_conntrack_irc ip_conntrack_tftp ip_conntrack_ftp ip_conntrack nfnetlink iptable_filter ip_tables x_tables 8139too mii af_packet floppy ide_cd loop intel_agp agpgart bt878 bttv video_buf compat_ioctl32 i2c_algo_bit v4l2_common btcx_risc ir_common tveeprom i2c_core videodev capability commoncap sata_vsc sata_via sata_svw sata_sil sata_promise sata_nv sx8 sata_uli sata_sx4 sata_sis sata_qstor ahci BusLogic aic7xxx scsi_transport_spi sg sr_mod cdrom ata_piix libata usb_storage sd_mod scsi_mod usbhid ohci_hcd ehci_hcd uhci_hcd u
Dec 23 17:07:36 zm kernel: EIP: 0060:[find_get_pages+110/128] Not tainted VLI
Dec 23 17:07:36 zm kernel: EIP: 0060:[<c014417e>] Not tainted VLI
Dec 23 17:07:36 zm kernel: EFLAGS: 00010002 (2.6.16.17.rdm1.smp #1)
I am fairly certain that these crashes only started once I swapped my aging WinTV card for a PV149 that I've now got.

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zoneminder
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Post by zoneminder » Sun Dec 24, 2006 3:21 pm

Kernel panics are hellish to debug, and I'm no good at it. Your stacktrace seems to imply it is related to deleting a file or inode. Do you have any odd or experimental filesystem, or dodgy disk?
Phil

jamescollings
Posts: 59
Joined: Wed Nov 22, 2006 11:26 am
Location: Bucks, UK

Post by jamescollings » Sun Dec 24, 2006 4:56 pm

<i>Do you have any odd or experimental filesystem, or dodgy disk</i>
Its a vanilla install from the LiveCD, I don't think the disks are dodgy (but it is conceivable).

Since posting, I have changed lilo.conf to "force ACPI" and also to auto-reboot after a panic (30 seconds). Finally I have reduced the size of the buffers with zoneminder (incase it is memory related).

Basically, I am running on ancient hardware
- Pentium II 233MHz
- 256Mb Ram
- 2x9Gb disks (IDE salvaged from an old Sun Sparc system)
- 1x8Gb disk for swap (used to be system disk)

It is a testament to Zoneminder and the LiveCD build that this runs at all. The PV149 (from Bluecherry) is the newest and most valuable component in the rig! If I can't resolve this by NewYearsDay I'll just buy a cheap £300 Dell box and scrap my aging components.

Anyway... I'll update this thread if I find something out over the coming week.

Happy Christmas Phil... how come we're both posting on Xmas eve, eh??

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zoneminder
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Post by zoneminder » Sun Dec 24, 2006 5:48 pm

Yes, all a bit sad isn't it! I might have tomorrow off tho :lol:
Phil

jamescollings
Posts: 59
Joined: Wed Nov 22, 2006 11:26 am
Location: Bucks, UK

Post by jamescollings » Tue Jan 02, 2007 11:26 am

Just to close this off (I hope). I ran for a few days with the modified ACPI, panic reboot and reduced buffers.. without any panics.

So I reinstated the lilo.conf file that LiveCD installed initially for me (ie: no modification to the ACPI or auto-reboot setting), and I have now been up for a further 3 days without a panic.

I guess I was running my buffers too large for the amount of memory installed on the box.

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