Re: Oops at xfs_bmbt_get_startoff in SLES 10 2.6.16

[Eric Sandeen <sandeen@sandeen.net>]

Kevin Jamieson wrote:
> Hello,
> 
> We have triggered the below oops in XFS several times on the SLES 10 SP2
> kernel (2.6.16.60-0.21-smp). We've also seen it on earlier SLES 10 kernels
> (2.6.16.21-0.8-smp).
> 
> The oops seems to occur with an application that backs up largish (~ 1GB)
> files to the XFS file system over NFS, although it is not easily
> reproducible (it happens about once a week on our test system). We have
> run xfs_repair a few times afterwards, and it did not detect any problems
> with the file system.
> 
> We will be reporting this to Novell support, of course, but I thought I'd
> post it here too in case anyone had any ideas or has seen this before.

For SLES that usually is the best route...

However, http://oss.sgi.com/archives/xfs/2009-02/msg00220.html looks
applicable... don't think it ever got merged though.

perhaps you could test it?

-Eric

> Thanks,
> Kevin
> 
> Mar 11 13:10:26 gn1 kernel: Unable to handle kernel paging request at
> virtual address 0301c39c
> Mar 11 13:10:26 gn1 kernel:  printing eip:
> Mar 11 13:10:26 gn1 kernel: f95899ab
> Mar 11 13:10:26 gn1 kernel: *pde = 00000000
> Mar 11 13:10:26 gn1 kernel: Oops: 0000 [#1]
> Mar 11 13:10:26 gn1 kernel: SMP
> Mar 11 13:10:26 gn1 kernel: last sysfs file:
> /devices/pci0000:00/0000:00:06.0/0000:17:00.0/host1/target1:0:3/1:0:3:0/type
> Mar 11 13:10:26 gn1 kernel: Modules linked in: nfsd exportfs lockd nfs_acl
> sunrpc af_packet xfs_quota sg qla2xxx_conf qla2xxx intermodule bnx2
> xt_pkttype ipt_LOG xt_limit bonding ip6t_REJECT xt_tcpudp ipt_REJECT
> xt_state iptable_ma
> ngle iptable_nat ip_nat iptable_filter ip6table_mangle ip_conntrack
> nfnetlink ip_tables ip6table_filter ip6_tables x_tables ipv6 loop
> xfs_dmapi xfs dmapi dm_mod usbhid hw_random shpchp pci_hotplug uhci_hcd
> ehci_hcd ide_cd cdrom usbcore e10
> 00 ext3 jbd ata_piix ahci libata edd fan thermal processor firmware_class
> scsi_transport_fc cciss piix sd_mod scsi_mod ide_disk ide_core
> Mar 11 13:10:26 gn1 kernel: CPU:    0
> Mar 11 13:10:26 gn1 kernel: EIP:    0060:[<f95899ab>]    Tainted: G     U VLI
> Mar 11 13:10:26 gn1 kernel: EFLAGS: 00010202   (2.6.16.60-0.21-smp #1)
> Mar 11 13:10:26 gn1 kernel: EIP is at xfs_bmbt_get_startoff+0x2/0x15 [xfs]
> Mar 11 13:10:26 gn1 kernel: eax: 0301c398   ebx: ec9fc6d0   ecx: 0301c398 
>  edx: 00001c39
> Mar 11 13:10:26 gn1 kernel: esi: ec9fc680   edi: 0301c398   ebp: d9c1fe40 
>  esp: d9c1fe24
> Mar 11 13:10:26 gn1 kernel: ds: 007b   es: 007b   ss: 0068
> Mar 11 13:10:26 gn1 kernel: Process nfsd (pid: 2178, threadinfo=d9c1e000
> task=dfc80910)
> Mar 11 13:10:26 gn1 kernel: Stack: <0>f957eb34 ec9fc680 ec9fc680 f651b000
> 00000000 f95a2f4e 00000000 dfc80910
> Mar 11 13:10:26 gn1 kernel:        00100100 ec9fc680 ec9fc680 2f14a000
> f95a3045 00000001 d0bcd800 ec9fc680
> Mar 11 13:10:26 gn1 kernel:        00000000 0002f14a 00000000 f95bae44
> 2f14a000 00000000 00000fff 00000000
> Mar 11 13:10:26 gn1 kernel: Call Trace:
> Mar 11 13:10:26 gn1 kernel:  [<f957eb34>] xfs_bmap_last_offset+0xc0/0xdc
> [xfs]
> Mar 11 13:10:26 gn1 kernel:  [<f95a2f4e>] xfs_file_last_byte+0x1e/0xbc [xfs]
> Mar 11 13:10:26 gn1 kernel:  [<f95a3045>] xfs_itruncate_start+0x59/0xa8 [xfs]
> Mar 11 13:10:26 gn1 kernel:  [<f95bae44>] xfs_free_eofblocks+0x17a/0x276
> [xfs]
> Mar 11 13:10:26 gn1 kernel:  [<f95bf921>] xfs_release+0x115/0x175 [xfs]
> Mar 11 13:10:26 gn1 kernel:  [<f95c51e7>] xfs_file_release+0x13/0x1a [xfs]
> Mar 11 13:10:26 gn1 kernel:  [<c01645cd>] __fput+0x9d/0x170
> Mar 11 13:10:26 gn1 kernel:  [<f9b588be>] nfsd_write+0xb6/0xbf [nfsd]
> Mar 11 13:10:26 gn1 kernel:  [<f9b5ee1a>] nfsd3_proc_write+0xd0/0xe7 [nfsd]
> Mar 11 13:10:26 gn1 kernel:  [<f973c76b>] svcauth_unix_accept+0xe1/0x18e
> [sunrpc]
> Mar 11 13:10:26 gn1 kernel:  [<f9b550cb>] nfsd_dispatch+0xbb/0x16c [nfsd]
> Mar 11 13:10:26 gn1 kernel:  [<f9739518>] svc_process+0x388/0x616 [sunrpc]
> Mar 11 13:10:26 gn1 kernel:  [<f9b55578>] nfsd+0x197/0x2ff [nfsd]
> Mar 11 13:10:26 gn1 kernel:  [<f9b553e1>] nfsd+0x0/0x2ff [nfsd]
> Mar 11 13:10:26 gn1 kernel:  [<c0102005>] kernel_thread_helper+0x5/0xb
> Mar 11 13:10:26 gn1 kernel: Code: 53 89 c1 8b 00 31 d2 8b 59 0c 8b 49 08
> 25 ff 01 00 00 89 c2 b8 00 00 00 00 0f ac d9 15 c1 e2 0b 09 c8 c1 eb 15 09
> da 5b c3 89 c1 <8b> 51 04 8b 00 81 e2 ff ff ff 7f 0f ac d0 09 c1 ea 09 c3
> 57 56
> 
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