Public bug reported:
Binary package hint: linux-image-2.6.22-14-generic
I run AMD64 Ubuntu Gutsy on a Core 2 Duo (Intel DG965WH mobo, 4GB RAM)
I sometimes see sda stop responding on my machine. (I'm starting to
think this may well be a driver bug, not a hardware problem, but I'll
report it separately.)
I run an AMD64 system with /, /usr and /home on RAID1, but /var/tmp,
/data on non-raid evms block devices. /home and /data are NFS-mounted
by another computer in the house.
/home is an XFS filesystem on an evms volume made from an lvm2 logical
volume with one physical volume: my RAID1 of partitions on sda and sdb.
/data is an XFS filesystem on an evms volume on an lvm2 logical volume
in a volume group with two physical volume: other partitions on sda and
sdb.
This time, I noticed the drive disappear when I ran df. I think the I/O
reading /bin/df from disk was the I/O that made the kernel notice that
sda was out to lunch. processes blocked on disk I/O for ~30 seconds,
then md decided to fail the reads over to the other half of the block
device. In case that matters. I imagine the result on the system
outside the ahci driver would be the same as pulling the power cord on
the hard drive. (although udev doesn't remove /dev/sda*, while it might
if the drive has hot-unplugged.) anyway, I'm trying to just report the
NFSd oops bug here. Note that I have no idea what filesystem was being
read when nfsd oopsed. It was either /data or /home. I do have a "Nov
22 05:29:47 llama kernel: nfs: server tesla not responding, timed out"
message with the right timestamp on the machine that has the filesystems
mounted, so I know there was an NFS request happening.
Nov 22 05:28:44 tesla kernel: [714786.172320] ata1.00: exception Emask 0x0 SAct
0x3 SErr 0x0 action 0x2 frozen
Nov 22 05:28:44 tesla kernel: [714786.172329] ata1.00: cmd
61/01:00:df:73:99/00:00:03:00:00/40 tag 0 cdb 0x0 data 512 out
Nov 22 05:28:44 tesla kernel: [714786.172331] res
40/00:ff:00:fa:00/00:00:00:00:00/40 Emask 0x4 (timeout)
Nov 22 05:28:44 tesla kernel: [714786.172337] ata1.00: cmd
60/28:08:1a:8d:95/00:00:26:00:00/40 tag 1 cdb 0x0 data 20480 in
Nov 22 05:28:44 tesla kernel: [714786.172339] res
40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
Nov 22 05:28:45 tesla kernel: [714786.484245] ata1: soft resetting port
Nov 22 05:28:50 tesla kernel: [714791.743090] ata1: port is slow to respond,
please be patient (Status 0xc0)
Nov 22 05:28:55 tesla kernel: [714796.558036] ata1: softreset failed (device
not ready)
Nov 22 05:28:55 tesla kernel: [714796.558042] ata1: hard resetting port
Nov 22 05:29:00 tesla kernel: [714802.072821] ata1: port is slow to respond,
please be patient (Status 0x80)
Nov 22 05:29:05 tesla kernel: [714806.607826] ata1: COMRESET failed (errno=-16)
Nov 22 05:29:05 tesla kernel: [714806.607834] ata1: hard resetting port
Nov 22 05:29:10 tesla kernel: [714812.122615] ata1: port is slow to respond,
please be patient (Status 0x80)
Nov 22 05:29:40 tesla kernel: [714841.676126] ata1: COMRESET failed (errno=-16)
Nov 22 05:29:40 tesla kernel: [714841.676135] ata1: limiting SATA link speed to
1.5 Gbps
Nov 22 05:29:40 tesla kernel: [714841.676138] ata1: hard resetting port
Nov 22 05:29:45 tesla kernel: [714846.687024] ata1: COMRESET failed (errno=-16)
Nov 22 05:29:45 tesla kernel: [714846.687032] ata1: reset failed, giving up
Nov 22 05:29:45 tesla kernel: [714846.687034] ata1.00: disabled
Nov 22 05:29:45 tesla kernel: [714846.687049] ata1: EH complete
Nov 22 05:29:45 tesla kernel: [714846.687431] sd 0:0:0:0: [sda] Result:
hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST
_OK
Nov 22 05:29:45 tesla kernel: [714846.687438] end_request: I/O error, dev sda,
sector 647335194
Nov 22 05:29:45 tesla kernel: [714846.687456] sd 0:0:0:0: [sda] Result:
hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST
_OK
Nov 22 05:29:45 tesla kernel: [714846.687460] end_request: I/O error, dev sda,
sector 60388319
...
Nov 22 05:29:50 tesla kernel: [714851.486244] sd 0:0:0:0: [sda] Result:
hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK
Nov 22 05:29:50 tesla kernel: [714851.486248] end_request: I/O error, dev sda,
sector 164108026
Nov 22 05:29:50 tesla kernel: [714851.520009] Unable to handle kernel NULL
pointer dereference at 0000000000000000 RIP:
Nov 22 05:29:50 tesla kernel: [714851.520014] [_end+132959939/2130332920]
:nfsd:encode_fsid+0x9b/0xb0
Nov 22 05:29:50 tesla kernel: [714851.520031] PGD 1234b3067 PUD 122c24067 PMD 0
Nov 22 05:29:50 tesla kernel: [714851.520036] Oops: 0000 [1] SMP
Nov 22 05:29:50 tesla kernel: [714851.520039] CPU 0
Nov 22 05:29:50 tesla kernel: [714851.520042] Modules linked in: joydev xpad
nfs nls_cp437 vfat fat nls_utf8 usb_storage ide_core libusual isofs udf loop
af_packet binfmt_misc vboxdrv nfsd exportfs lockd sunrpc ppdev autofs4 ipv6
video sbs container button dock ac battery cpufreq_userspace cpufreq_stats
cpufreq_powersave cpufreq_conservative cpufreq_ondemand ext3 jbd mbcache xfs
i915 drm eeprom i2c_i801 i2c_core acpi_cpufreq freq_table sbp2 lp snd_hda_intel
snd_pcm_oss snd_pcm snd_mixer_oss usbhid snd_seq_dummy hid snd_seq_oss
snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device
parport_pc parport psmouse pcspkr snd soundcore snd_page_alloc shpchp
pci_hotplug iTCO_wdt iTCO_vendor_support serio_raw heci intel_agp evdev jfs
sr_mod cdrom ata_generic sg sd_mod ohci1394 ieee1394 pata_marvell ahci libata
scsi_mod ehci_hcd e1000 uhci_hcd usbcore dm_mod raid10 raid456 xor raid1 raid0
multipath linear md_mod thermal processor fan fuse apparmor commoncap
Nov 22 05:29:50 tesla kernel: [714851.520105] Pid: 7074, comm: nfsd Not tainted
2.6.22-14-generic #1
Nov 22 05:29:50 tesla kernel: [714851.520107] RIP:
0010:[_end+132959939/2130332920] [_end+132959939/2130332920]
:nfsd:encode_fsid+0x9b/0xb0
Nov 22 05:29:50 tesla kernel: [714851.520116] RSP: 0000:ffff8101232d5e10
EFLAGS: 00010246
Nov 22 05:29:50 tesla kernel: [714851.520119] RAX: 0000000000000000 RBX:
ffff810123256008 RCX: ffff81001c0e0038
Nov 22 05:29:50 tesla kernel: [714851.520121] RDX: 0000000000000002 RSI:
ffff810123256008 RDI: ffff810123256008
Nov 22 05:29:50 tesla kernel: [714851.520123] RBP: ffff81001c0e0048 R08:
ffff810123256008 R09: ffff8101232d5d90
Nov 22 05:29:50 tesla kernel: [714851.520126] R10: 00000000000000f4 R11:
ffffffff883e84e0 R12: ffff81001c0e0014
Nov 22 05:29:50 tesla kernel: [714851.520128] R13: ffff81012855f410 R14:
ffff81001c0e0000 R15: ffff810128bcfc00
Nov 22 05:29:50 tesla kernel: [714851.520131] FS: 00002b7f5e6fa6e0(0000)
GS:ffffffff80560000(0000) knlGS:0000000000000000
Nov 22 05:29:50 tesla kernel: [714851.520133] CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
Nov 22 05:29:50 tesla kernel: [714851.520135] CR2: 0000000000000000 CR3:
000000012350d000 CR4: 00000000000026e0
Nov 22 05:29:50 tesla kernel: [714851.520137] Process nfsd (pid: 7074,
threadinfo ffff8101232d4000, task ffff810123fc0000)
Nov 22 05:29:50 tesla kernel: [714851.520139] Stack: 0000000000000000
ffff810123254000 ffff810123256138 ffffffff88528298
Nov 22 05:29:50 tesla kernel: [714851.520144] ffff8101231d5000
ffff810123256000 ffff810123256008 ffff810123254000
Nov 22 05:29:50 tesla kernel: [714851.520148] ffffffff8854a518
ffff81001c0e0014 0000000000000018 ffffffff8852941a
Nov 22 05:29:50 tesla kernel: [714851.520151] Call Trace:
Nov 22 05:29:50 tesla kernel: [714851.520161] [_end+132960144/2130332920]
:nfsd:encode_fattr3+0xb8/0x140
Nov 22 05:29:50 tesla kernel: [714851.520174] [_end+132964626/2130332920]
:nfsd:nfs3svc_encode_attrstat+0x1a/0x40
Nov 22 05:29:50 tesla kernel: [714851.520182] [_end+132902773/2130332920]
:nfsd:nfsd_dispatch+0xfd/0x200
Nov 22 05:29:50 tesla kernel: [714851.520197] [_end+132643136/2130332920]
:sunrpc:svc_process+0x478/0x7a0
Nov 22 05:29:50 tesla kernel: [714851.520204] [__down_read+18/177]
__down_read+0x12/0xb1
Nov 22 05:29:50 tesla kernel: [714851.520215] [_end+132904104/2130332920]
:nfsd:nfsd+0x0/0x2d0
Nov 22 05:29:50 tesla kernel: [714851.520221] [_end+132904499/2130332920]
:nfsd:nfsd+0x18b/0x2d0
Nov 22 05:29:50 tesla kernel: [714851.520229] [child_rip+10/18]
child_rip+0xa/0x12
Nov 22 05:29:50 tesla kernel: [714851.520236] [_end+132904104/2130332920]
:nfsd:nfsd+0x0/0x2d0
Nov 22 05:29:50 tesla kernel: [714851.520250] [_end+132904104/2130332920]
:nfsd:nfsd+0x0/0x2d0
Nov 22 05:29:50 tesla kernel: [714851.520253] [child_rip+0/18]
child_rip+0x0/0x12
Nov 22 05:29:50 tesla kernel: [714851.520257]
Nov 22 05:29:50 tesla kernel: [714851.520258]
Nov 22 05:29:50 tesla kernel: [714851.520258] Code: 48 8b 10 48 33 50 08 eb ce
66 66 66 2e 0f 1f 84 00 00 00 00
Nov 22 05:29:50 tesla kernel: [714851.520266] RIP [_end+132959939/2130332920]
:nfsd:encode_fsid+0x9b/0xb0
Nov 22 05:29:50 tesla kernel: [714851.520274] RSP <ffff8101232d5e10>
Nov 22 05:29:50 tesla kernel: [714851.520276] CR2: 0000000000000000
Nov 22 05:29:50 tesla kernel: [714851.520279] Unable to handle kernel NULL
pointer dereference at 0000000000000000 RIP:
Nov 22 05:29:50 tesla kernel: [714851.520282] [_end+132959939/2130332920]
:nfsd:encode_fsid+0x9b/0xb0
Nov 22 05:29:50 tesla kernel: [714851.520291] PGD 1203d2067 PUD 11f8a2067 PMD 0
Nov 22 05:29:50 tesla kernel: [714851.520294] Oops: 0000 [2] SMP
Nov 22 05:29:50 tesla kernel: [714851.520296] CPU 1
Nov 22 05:29:50 tesla kernel: [714851.520298] Modules linked in: joydev xpad
nfs nls_cp437 vfat fat nls_utf8 usb_storage ide_core libusual isofs udf loop
af_packet binfmt_misc vboxdrv nfsd exportfs lockd sunrpc ppdev autofs4 ipv6
video sbs container button dock ac battery cpufreq_userspace cpufreq_stats
cpufreq_powersave cpufreq_conservative cpufreq_ondemand ext3 jbd mbcache xfs
i915 drm eeprom i2c_i801 i2c_core acpi_cpufreq freq_table sbp2 lp snd_hda_intel
snd_pcm_oss snd_pcm snd_mixer_oss usbhid snd_seq_dummy hid snd_seq_oss
snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device
parport_pc parport psmouse pcspkr snd soundcore snd_page_alloc shpchp
pci_hotplug iTCO_wdt iTCO_vendor_support serio_raw heci intel_agp evdev jfs
sr_mod cdrom ata_generic sg sd_mod ohci1394 ieee1394 pata_marvell ahci libata
scsi_mod ehci_hcd e1000 uhci_hcd usbcore dm_mod raid10 raid456 xor raid1 raid0
multipath linear md_mod thermal processor fan fuse apparmor commoncap
Nov 22 05:29:50 tesla kernel: [714851.520342] Pid: 7070, comm: nfsd Not tainted
2.6.22-14-generic #1
Nov 22 05:29:50 tesla kernel: [714851.520344] RIP:
0010:[_end+132959939/2130332920] [_end+132959939/2130332920]
:nfsd:encode_fsid+0x9b/0xb0
Nov 22 05:29:50 tesla kernel: [714851.520354] RSP: 0018:ffff8101230ade10
EFLAGS: 00010246
Nov 22 05:29:50 tesla kernel: [714851.520356] RAX: 0000000000000000 RBX:
ffff81012302e008 RCX: ffff8100318c7038
Nov 22 05:29:50 tesla kernel: [714851.520358] RDX: 0000000000000002 RSI:
ffff81012302e008 RDI: ffff81012302e008
Nov 22 05:29:50 tesla kernel: [714851.520361] RBP: ffff8100318c7048 R08:
ffff81012302e008 R09: ffff8101230add90
Nov 22 05:29:50 tesla kernel: [714851.520363] R10: 00000000000000f4 R11:
ffffffff883e84e0 R12: ffff8100318c7014
Nov 22 05:29:50 tesla kernel: [714851.520365] R13: ffff81012855f410 R14:
ffff8100318c7000 R15: ffff810128bcfc00
Nov 22 05:29:50 tesla kernel: [714851.520368] FS: 00002b7f5e6fa6e0(0000)
GS:ffff81012bd01380(0000) knlGS:0000000000000000
Nov 22 05:29:50 tesla kernel: [714851.520370] CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
Nov 22 05:29:50 tesla kernel: [714851.520372] CR2: 0000000000000000 CR3:
000000011f8a3000 CR4: 00000000000026e0
Nov 22 05:29:50 tesla kernel: [714851.520375] Process nfsd (pid: 7070,
threadinfo ffff8101230ac000, task ffff8101250ff4a0)
Nov 22 05:29:50 tesla kernel: [714851.520376] Stack: 0000000000000000
ffff81012302c000 ffff81012302e138 ffffffff88528298
Nov 22 05:29:50 tesla kernel: [714851.520381] ffff8101236fe000
ffff81012302e000 ffff81012302e008 ffff81012302c000
Nov 22 05:29:50 tesla kernel: [714851.520385] ffffffff8854a518
ffff8100318c7014 0000000000000018 ffffffff8852941a
Nov 22 05:29:50 tesla kernel: [714851.520388] Call Trace:
Nov 22 05:29:50 tesla kernel: [714851.520398] [_end+132960144/2130332920]
:nfsd:encode_fattr3+0xb8/0x140
Nov 22 05:29:50 tesla kernel: [714851.520410] [_end+132964626/2130332920]
:nfsd:nfs3svc_encode_attrstat+0x1a/0x40
Nov 22 05:29:50 tesla kernel: [714851.520418] [_end+132902773/2130332920]
:nfsd:nfsd_dispatch+0xfd/0x200
Nov 22 05:29:50 tesla kernel: [714851.520431] [_end+132643136/2130332920]
:sunrpc:svc_process+0x478/0x7a0
Nov 22 05:29:50 tesla kernel: [714851.520436] [__down_read+18/177]
__down_read+0x12/0xb1
Nov 22 05:29:50 tesla kernel: [714851.520446] [_end+132904104/2130332920]
:nfsd:nfsd+0x0/0x2d0
Nov 22 05:29:50 tesla kernel: [714851.520453] [_end+132904499/2130332920]
:nfsd:nfsd+0x18b/0x2d0
Nov 22 05:29:50 tesla kernel: [714851.520460] [child_rip+10/18]
child_rip+0xa/0x12
Nov 22 05:29:50 tesla kernel: [714851.520467] [_end+132904104/2130332920]
:nfsd:nfsd+0x0/0x2d0
Nov 22 05:29:50 tesla kernel: [714851.520481] [_end+132904104/2130332920]
:nfsd:nfsd+0x0/0x2d0
Nov 22 05:29:50 tesla kernel: [714851.520484] [child_rip+0/18]
child_rip+0x0/0x12
Nov 22 05:29:50 tesla kernel: [714851.520488]
Nov 22 05:29:50 tesla kernel: [714851.520489]
Nov 22 05:29:50 tesla kernel: [714851.520489] Code: 48 8b 10 48 33 50 08 eb ce
66 66 66 2e 0f 1f 84 00 00 00 00
Nov 22 05:29:50 tesla kernel: [714851.520497] RIP [_end+132959939/2130332920]
:nfsd:encode_fsid+0x9b/0xb0
Nov 22 05:29:50 tesla kernel: [714851.520505] RSP <ffff8101230ade10>
Nov 22 05:29:50 tesla kernel: [714851.520507] CR2: 0000000000000000
Nov 22 05:29:50 tesla kernel: [714851.520530] Unable to handle kernel NULL
pointer dereference at 0000000000000000 RIP:
Nov 22 05:29:50 tesla kernel: [714851.520532] [_end+132959939/2130332920]
:nfsd:encode_fsid+0x9b/0xb0
Nov 22 05:29:50 tesla kernel: [714851.520541] PGD 1203d2067 PUD 11f8a2067 PMD 0
Nov 22 05:29:50 tesla kernel: [714851.520543] Oops: 0000 [3] SMP
Nov 22 05:29:50 tesla kernel: [714851.520545] CPU 1
Nov 22 05:29:50 tesla kernel: [714851.520547] Modules linked in: joydev xpad
nfs nls_cp437 vfat fat nls_utf8 usb_storage ide_core libusual isofs udf loop
af_packet binfmt_misc vboxdrv nfsd exportfs lockd sunrpc ppdev autofs4 ipv6
video sbs container button dock ac battery cpufreq_userspace cpufreq_stats
cpufreq_powersave cpufreq_conservative cpufreq_ondemand ext3 jbd mbcache xfs
i915 drm eeprom i2c_i801 i2c_core acpi_cpufreq freq_table sbp2 lp snd_hda_intel
snd_pcm_oss snd_pcm snd_mixer_oss usbhid snd_seq_dummy hid snd_seq_oss
snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device
parport_pc parport psmouse pcspkr snd soundcore snd_page_alloc shpchp
pci_hotplug iTCO_wdt iTCO_vendor_support serio_raw heci intel_agp evdev jfs
sr_mod cdrom ata_generic sg sd_mod ohci1394 ieee1394 pata_marvell ahci libata
scsi_mod ehci_hcd e1000 uhci_hcd usbcore dm_mod raid10 raid456 xor raid1 raid0
multipath linear md_mod thermal processor fan fuse apparmor commoncap
Nov 22 05:29:50 tesla kernel: [714851.520591] Pid: 7072, comm: nfsd Not tainted
2.6.22-14-generic #1
Nov 22 05:29:50 tesla kernel: [714851.520593] RIP:
0010:[_end+132959939/2130332920] [_end+132959939/2130332920]
:nfsd:encode_fsid+0x9b/0xb0
Nov 22 05:29:50 tesla kernel: [714851.520602] RSP: 0018:ffff8101231d1e10
EFLAGS: 00010246
Nov 22 05:29:50 tesla kernel: [714851.520604] RAX: 0000000000000000 RBX:
ffff810123152008 RCX: ffff810052d5d038
Nov 22 05:29:50 tesla kernel: [714851.520606] RDX: 0000000000000002 RSI:
ffff810123152008 RDI: ffff810123152008
Nov 22 05:29:50 tesla kernel: [714851.520609] RBP: ffff810052d5d048 R08:
ffff810123152008 R09: ffff8101231d1d90
Nov 22 05:29:50 tesla kernel: [714851.520611] R10: 00000000000000f4 R11:
ffffffff883e84e0 R12: ffff810052d5d014
Nov 22 05:29:50 tesla kernel: [714851.520614] R13: ffff81012855f410 R14:
ffff810052d5d000 R15: ffff810128bcfc00
Nov 22 05:29:50 tesla kernel: [714851.520616] FS: 00002b7f5e6fa6e0(0000)
GS:ffff81012bd01380(0000) knlGS:0000000000000000
Nov 22 05:29:50 tesla kernel: [714851.520618] CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
Nov 22 05:29:50 tesla kernel: [714851.520620] CR2: 0000000000000000 CR3:
000000011f8a3000 CR4: 00000000000026e0
Nov 22 05:29:50 tesla kernel: [714851.520623] Process nfsd (pid: 7072,
threadinfo ffff8101231d0000, task ffff8101276434a0)
Nov 22 05:29:50 tesla kernel: [714851.520624] Stack: 0000000000000000
ffff810123150000 ffff810123152138 ffffffff88528298
Nov 22 05:29:50 tesla kernel: [714851.520629] ffff8101230b1000
ffff810123152000 ffff810123152008 ffff810123150000
Nov 22 05:29:50 tesla kernel: [714851.520633] ffffffff8854a518
ffff810052d5d014 0000000000000018 ffffffff8852941a
Nov 22 05:29:50 tesla kernel: [714851.520636] Call Trace:
Nov 22 05:29:50 tesla kernel: [714851.520646] [_end+132960144/2130332920]
:nfsd:encode_fattr3+0xb8/0x140
Nov 22 05:29:50 tesla kernel: [714851.520657] [_end+132964626/2130332920]
:nfsd:nfs3svc_encode_attrstat+0x1a/0x40
Nov 22 05:29:50 tesla kernel: [714851.520665] [_end+132902773/2130332920]
:nfsd:nfsd_dispatch+0xfd/0x200
Nov 22 05:29:50 tesla kernel: [714851.520679] [_end+132643136/2130332920]
:sunrpc:svc_process+0x478/0x7a0
Nov 22 05:29:50 tesla kernel: [714851.520683] [__down_read+18/177]
__down_read+0x12/0xb1
Nov 22 05:29:50 tesla kernel: [714851.520693] [_end+132904104/2130332920]
:nfsd:nfsd+0x0/0x2d0
Nov 22 05:29:50 tesla kernel: [714851.520700] [_end+132904499/2130332920]
:nfsd:nfsd+0x18b/0x2d0
Nov 22 05:29:50 tesla kernel: [714851.520707] [child_rip+10/18]
child_rip+0xa/0x12
Nov 22 05:29:50 tesla kernel: [714851.520714] [_end+132904104/2130332920]
:nfsd:nfsd+0x0/0x2d0
Nov 22 05:29:50 tesla kernel: [714851.520728] [_end+132904104/2130332920]
:nfsd:nfsd+0x0/0x2d0
Nov 22 05:29:50 tesla kernel: [714851.520731] [child_rip+0/18]
child_rip+0x0/0x12
Nov 22 05:29:50 tesla kernel: [714851.520735]
Nov 22 05:29:50 tesla kernel: [714851.520736]
Nov 22 05:29:50 tesla kernel: [714851.520736] Code: 48 8b 10 48 33 50 08 eb ce
66 66 66 2e 0f 1f 84 00 00 00 00
Nov 22 05:29:50 tesla kernel: [714851.520744] RIP [_end+132959939/2130332920]
:nfsd:encode_fsid+0x9b/0xb0
Nov 22 05:29:50 tesla kernel: [714851.520752] RSP <ffff8101231d1e10>
Nov 22 05:29:50 tesla kernel: [714851.520753] CR2: 0000000000000000
Nov 22 05:29:50 tesla kernel: [714851.570257] Unable to handle kernel NULL
pointer dereference at 0000000000000000 RIP:
Nov 22 05:29:50 tesla kernel: [714851.570261] [_end+132959939/2130332920]
:nfsd:encode_fsid+0x9b/0xb0
Nov 22 05:29:50 tesla kernel: [714851.570277] PGD 1112d8067 PUD 0
Nov 22 05:29:50 tesla kernel: [714851.570281] Oops: 0000 [4] SMP
Nov 22 05:29:50 tesla kernel: [714851.570284] CPU 0
Nov 22 05:29:50 tesla kernel: [714851.570286] Modules linked in: joydev xpad
nfs nls_cp437 vfat fat nls_utf8 usb_storage ide_core libusual isofs udf loop
af_packet binfmt_misc vboxdrv nfsd exportfs lockd sunrpc ppdev autofs4 ipv6
video sbs container button dock ac battery cpufreq_userspace cpufreq_stats
cpufreq_powersave cpufreq_conservative cpufreq_ondemand ext3 jbd mbcache xfs
i915 drm eeprom i2c_i801 i2c_core acpi_cpufreq freq_table sbp2 lp snd_hda_intel
snd_pcm_oss snd_pcm snd_mixer_oss usbhid snd_seq_dummy hid snd_seq_oss
snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device
parport_pc parport psmouse pcspkr snd soundcore snd_page_alloc shpchp
pci_hotplug iTCO_wdt iTCO_vendor_support serio_raw heci intel_agp evdev jfs
sr_mod cdrom ata_generic sg sd_mod ohci1394 ieee1394 pata_marvell ahci libata
scsi_mod ehci_hcd e1000 uhci_hcd usbcore dm_mod raid10 raid456 xor raid1 raid0
multipath linear md_mod thermal processor fan fuse apparmor commoncap
Nov 22 05:29:50 tesla kernel: [714851.570357] Pid: 7071, comm: nfsd Not tainted
2.6.22-14-generic #1
Nov 22 05:29:50 tesla kernel: [714851.570360] RIP:
0010:[_end+132959939/2130332920] [_end+132959939/2130332920]
:nfsd:encode_fsid+0x9b/0xb0
Nov 22 05:29:50 tesla kernel: [714851.570374] RSP: 0018:ffff81012314de10
EFLAGS: 00010246
Nov 22 05:29:50 tesla kernel: [714851.570377] RAX: 0000000000000000 RBX:
ffff8101230b0008 RCX: ffff810059993038
Nov 22 05:29:50 tesla kernel: [714851.570380] RDX: 0000000000000002 RSI:
ffff8101230b0008 RDI: ffff8101230b0008
Nov 22 05:29:50 tesla kernel: [714851.570384] RBP: ffff810059993048 R08:
ffff8101230b0008 R09: ffff81012314dd90
Nov 22 05:29:50 tesla kernel: [714851.570388] R10: 00000000000000f4 R11:
ffffffff883e84e0 R12: ffff810059993014
Nov 22 05:29:50 tesla kernel: [714851.570391] R13: ffff81012855f410 R14:
ffff810059993000 R15: ffff810128bcfc00
Nov 22 05:29:50 tesla kernel: [714851.570395] FS: 00002b7f5e6fa6e0(0000)
GS:ffffffff80560000(0000) knlGS:0000000000000000
Nov 22 05:29:50 tesla kernel: [714851.570398] CS: 0010 DS: 0000 ES: 0000 CR0:
000000008005003b
Nov 22 05:29:50 tesla kernel: [714851.570401] CR2: 0000000000000000 CR3:
00000001112ce000 CR4: 00000000000026e0
Nov 22 05:29:50 tesla kernel: [714851.570405] Process nfsd (pid: 7071,
threadinfo ffff81012314c000, task ffff81012666c000)
Nov 22 05:29:50 tesla kernel: [714851.570408] Stack: 0000000000000000
ffff8101230ae000 ffff8101230b0138 ffffffff88528298
Nov 22 05:29:50 tesla kernel: [714851.570414] ffff81012302f000
ffff8101230b0000 ffff8101230b0008 ffff8101230ae000
Nov 22 05:29:50 tesla kernel: [714851.570420] ffffffff8854a518
ffff810059993014 0000000000000018 ffffffff8852941a
Nov 22 05:29:50 tesla kernel: [714851.570425] Call Trace:
Nov 22 05:29:50 tesla kernel: [714851.570440] [_end+132960144/2130332920]
:nfsd:encode_fattr3+0xb8/0x140
Nov 22 05:29:50 tesla kernel: [714851.570459] [_end+132964626/2130332920]
:nfsd:nfs3svc_encode_attrstat+0x1a/0x40
Nov 22 05:29:50 tesla kernel: [714851.570471] [_end+132902773/2130332920]
:nfsd:nfsd_dispatch+0xfd/0x200
Nov 22 05:29:50 tesla kernel: [714851.570492] [_end+132643136/2130332920]
:sunrpc:svc_process+0x478/0x7a0
Nov 22 05:29:50 tesla kernel: [714851.570500] [__down_read+18/177]
__down_read+0x12/0xb1
Nov 22 05:29:50 tesla kernel: [714851.570515] [_end+132904104/2130332920]
:nfsd:nfsd+0x0/0x2d0
Nov 22 05:29:50 tesla kernel: [714851.570525] [_end+132904499/2130332920]
:nfsd:nfsd+0x18b/0x2d0
Nov 22 05:29:50 tesla kernel: [714851.570536] [child_rip+10/18]
child_rip+0xa/0x12
Nov 22 05:29:50 tesla kernel: [714851.570547] [_end+132904104/2130332920]
:nfsd:nfsd+0x0/0x2d0
Nov 22 05:29:50 tesla kernel: [714851.570567] [_end+132904104/2130332920]
:nfsd:nfsd+0x0/0x2d0
Nov 22 05:29:50 tesla kernel: [714851.570572] [child_rip+0/18]
child_rip+0x0/0x12
Nov 22 05:29:50 tesla kernel: [714851.570578]
Nov 22 05:29:50 tesla kernel: [714851.570580]
Nov 22 05:29:50 tesla kernel: [714851.570581] Code: 48 8b 10 48 33 50 08 eb ce
66 66 66 2e 0f 1f 84 00 00 00 00
Nov 22 05:29:50 tesla kernel: [714851.570592] RIP [_end+132959939/2130332920]
:nfsd:encode_fsid+0x9b/0xb0
Nov 22 05:29:50 tesla kernel: [714851.570605] RSP <ffff81012314de10>
Nov 22 05:29:50 tesla kernel: [714851.570607] CR2: 0000000000000000
Nov 22 05:30:29 tesla kernel: [714890.948142] sd 0:0:0:0: [sda] Result:
hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK,SUGGEST_OK
Nov 22 05:30:29 tesla kernel: [714890.948153] end_request: I/O error, dev sda,
sector 106260354
my /etc/exports:
/var/tmp 10.0.0.0/24(rw,async,no_subtree_check,no_root_squash)
/data 10.0.0.0/24(rw,async,no_subtree_check,no_root_squash)
/home 10.0.0.0/24(rw,async,no_subtree_check,no_root_squash)
/var/safe 10.0.0.0/24(rw,async,no_subtree_check,no_root_squash)
/usr 10.0.0.0/24(ro,async,no_subtree_check)
/usr/local/src 10.0.0.0/24(rw,async,no_subtree_check)
#/media 10.0.0.8(rw,async,nohide)
# nohide = recursive export. Only supposed to work with a single host, not
subnet
/mnt/WD2000 10.0.0.0/24(rw,async,no_subtree_check,no_root_squash)
** Affects: linux-source-2.6.22 (Ubuntu)
Importance: Undecided
Status: New
--
nfsd oops after a disk disappears
https://bugs.launchpad.net/bugs/164486
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Bugs, which is the bug contact for Ubuntu.
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