2010-09-15 13:22:32

by Mkrtchyan, Tigran

[permalink] [raw]
Subject: kernel panic


This is pnfs-all-latest git fa5a03da84b02026396be0736288b3f4a8143ff2
$ uname -a
Linux anahit 2.6.35-pnfs-2 #22 SMP Fri Aug 27 17:47:27 CEST 2010 x86_64
x86_64 x86_64 GNU/Linux
$

On server restart:

[624967.868286] BUG: unable to handle kernel NULL pointer dereference at
(null)
[624967.868291] IP: [<ffffffffa0492f42>] nfs41_sequence_done+0x52/0x2e0
[nfs]
[624967.868312] PGD 0
[624967.868315] Oops: 0002 [#1] SMP
[624967.868317] last sysfs file:
/sys/devices/pci0000:00/0000:00:1a.7/usb1/1-5/1-5:1.0/host8/target8:0:0/8:0:0:0/block/sdb/sdb1/stat
[624967.868321] CPU 0
[624967.868322] Modules linked in: nfs_layout_nfsv41_files snd_pcm_oss
snd_mixer_oss snd_seq edd rpcsec_gss_krb5 vboxnetadp vboxnetflt nfs
lockd fscache nfs_acl auth_rpcgss sunrpc vboxdrv cpufreq_conservative
cpufreq_userspace cpufreq_powersave acpi_cpufreq mperf fuse loop dm_mod
snd_hda_codec_idt snd_usb_audio snd_hda_intel snd_hda_codec snd_hwdep
iTCO_wdt snd_pcm sr_mod snd_timer iTCO_vendor_support snd_usbmidi_lib sg
cdrom pcspkr serio_raw snd_rawmidi snd_seq_device ohci1394 ieee1394
i2c_i801 button snd microcode e1000e snd_page_alloc ext4 jbd2 crc16 fan
processor ide_pci_generic ide_core ata_generic pata_marvell thermal
thermal_sys
[624967.868363]
[624967.868366] Pid: 2267, comm: rpciod/0 Tainted: G I
2.6.35-pnfs-2 #22 DX38BT/pczW1007
[624967.868368] RIP: 0010:[<ffffffffa0492f42>] [<ffffffffa0492f42>]
nfs41_sequence_done+0x52/0x2e0 [nfs]
[624967.868382] RSP: 0018:ffff880107e8dda0 EFLAGS: 00010246
[624967.868384] RAX: 0000000000000000 RBX: ffff88012d28ca98 RCX:
0000000000000000
[624967.868386] RDX: 0000000000000000 RSI: ffff88012d28ca98 RDI:
ffff880107c9e180
[624967.868388] RBP: ffff880107e8ddc0 R08: 0000000000000000 R09:
0000000000000000
[624967.868391] R10: 0000000000000000 R11: 00000000ffffffff R12:
ffff880107c9e180
[624967.868393] R13: 0000000000000001 R14: 0000000000000000 R15:
ffff880116802300
[624967.868396] FS: 0000000000000000(0000) GS:ffff880001a00000(0000)
knlGS:0000000000000000
[624967.868398] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[624967.868400] CR2: 0000000000000000 CR3: 00000000015c8000 CR4:
00000000000406f0
[624967.868403] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[624967.868405] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
0000000000000400
[624967.868408] Process rpciod/0 (pid: 2267, threadinfo
ffff880107e8c000, task ffff880116802300)
[624967.868410] Stack:
[624967.868411] 0000000000012300 ffff880107c9e180 ffff880022c5a000
0000000000000001
[624967.868415] <0> ffff880107e8dde0 ffffffffa04934d0 ffff880107c9e180
ffff880107c9e1f0
[624967.868419] <0> ffff880107e8de00 ffffffffa040ab17 0000000000000001
ffff880107c9e180
[624967.868423] Call Trace:
[624967.868435] [<ffffffffa04934d0>]
nfs41_sequence_call_done+0x20/0x100 [nfs]
[624967.868447] [<ffffffffa040ab17>] rpc_exit_task+0x27/0x60 [sunrpc]
[624967.868457] [<ffffffffa040b322>] __rpc_execute+0xa2/0x290 [sunrpc]
[624967.868466] [<ffffffffa040b510>] ? rpc_async_schedule+0x0/0x20 [sunrpc]
[624967.868475] [<ffffffffa040b520>] rpc_async_schedule+0x10/0x20 [sunrpc]
[624967.868481] [<ffffffff81059fed>] worker_thread+0x12d/0x1f0
[624967.868485] [<ffffffff8105e530>] ? autoremove_wake_function+0x0/0x40
[624967.868488] [<ffffffff81059ec0>] ? worker_thread+0x0/0x1f0
[624967.868491] [<ffffffff8105e08e>] kthread+0x8e/0xa0
[624967.868495] [<ffffffff81003b54>] kernel_thread_helper+0x4/0x10
[624967.868498] [<ffffffff8105e000>] ? kthread+0x0/0xa0
[624967.868501] [<ffffffff81003b50>] ? kernel_thread_helper+0x0/0x10
[624967.868503] Code: 08 80 fa 80 74 73 48 8b 0b 0f b6 c2 48 c1 e0 02 48
03 41 60 8b 4b 0c 81 f9 e8 d8 ff ff 0f 84 26 01 00 00 85 c9 0f 85 fe 00
00 00 <83> 00 01 48 8b 03 4c 8b 6b 10 4c 8b a0 38 02 00 00 49 8d bc 24
[624967.868532] RIP [<ffffffffa0492f42>] nfs41_sequence_done+0x52/0x2e0
[nfs]
[624967.868544] RSP <ffff880107e8dda0>
[624967.868546] CR2: 0000000000000000
[624967.868548] ---[ end trace a7919e7f17c0a727 ]---


Tigran.


2010-09-17 08:23:47

by Benny Halevy

[permalink] [raw]
Subject: Re: kernel panic

On 2010-09-17 08:33, Tigran Mkrtchyan wrote:
> On 09/16/2010 05:35 PM, Benny Halevy wrote:
>> On 2010-09-15 15:21, Tigran Mkrtchyan wrote:
>>> This is pnfs-all-latest git fa5a03da84b02026396be0736288b3f4a8143ff2
>> Hmm, it's pnfs-all-2.6.35 by now :)
>
> I already moved my desktop and 2.6.36-rc3 git
> 7c40d303e13ec2f2e0b6cf217c008106b391d058
> and farm nodes will be upgraded today.
>> but nevertheless, the IP below doesn't seem to agree with the assembly
>> code for nfs41_sequence_done.
>> Do mind running gdb on your binary (fs/nfs/nfs.ko) and locating
> I will do that next time. Unfortunately when I got your mail my system was
> running newer kernel.

OK, thanks for reporting!

>
> Thanks
> Tigran.
>
> P.S: the rss feed from git does not show rebases and I am missing latest
> updates. Could you send a e-mail around whem you merge?

Sure. No problem

Benny

>> the exact line and cpu instruction to see what's going on?
>>
>> Thanks,
>>
>> Benny
>>
>>> $ uname -a
>>> Linux anahit 2.6.35-pnfs-2 #22 SMP Fri Aug 27 17:47:27 CEST 2010 x86_64
>>> x86_64 x86_64 GNU/Linux
>>> $
>>>
>>> On server restart:
>>>
>>> [624967.868286] BUG: unable to handle kernel NULL pointer dereference at
>>> (null)
>>> [624967.868291] IP: [<ffffffffa0492f42>] nfs41_sequence_done+0x52/0x2e0
>>> [nfs]
>>> [624967.868312] PGD 0
>>> [624967.868315] Oops: 0002 [#1] SMP
>>> [624967.868317] last sysfs file:
>>> /sys/devices/pci0000:00/0000:00:1a.7/usb1/1-5/1-5:1.0/host8/target8:0:0/8:0:0:0/block/sdb/sdb1/stat
>>> [624967.868321] CPU 0
>>> [624967.868322] Modules linked in: nfs_layout_nfsv41_files snd_pcm_oss
>>> snd_mixer_oss snd_seq edd rpcsec_gss_krb5 vboxnetadp vboxnetflt nfs
>>> lockd fscache nfs_acl auth_rpcgss sunrpc vboxdrv cpufreq_conservative
>>> cpufreq_userspace cpufreq_powersave acpi_cpufreq mperf fuse loop dm_mod
>>> snd_hda_codec_idt snd_usb_audio snd_hda_intel snd_hda_codec snd_hwdep
>>> iTCO_wdt snd_pcm sr_mod snd_timer iTCO_vendor_support snd_usbmidi_lib sg
>>> cdrom pcspkr serio_raw snd_rawmidi snd_seq_device ohci1394 ieee1394
>>> i2c_i801 button snd microcode e1000e snd_page_alloc ext4 jbd2 crc16 fan
>>> processor ide_pci_generic ide_core ata_generic pata_marvell thermal
>>> thermal_sys
>>> [624967.868363]
>>> [624967.868366] Pid: 2267, comm: rpciod/0 Tainted: G I
>>> 2.6.35-pnfs-2 #22 DX38BT/pczW1007
>>> [624967.868368] RIP: 0010:[<ffffffffa0492f42>] [<ffffffffa0492f42>]
>>> nfs41_sequence_done+0x52/0x2e0 [nfs]
>>> [624967.868382] RSP: 0018:ffff880107e8dda0 EFLAGS: 00010246
>>> [624967.868384] RAX: 0000000000000000 RBX: ffff88012d28ca98 RCX:
>>> 0000000000000000
>>> [624967.868386] RDX: 0000000000000000 RSI: ffff88012d28ca98 RDI:
>>> ffff880107c9e180
>>> [624967.868388] RBP: ffff880107e8ddc0 R08: 0000000000000000 R09:
>>> 0000000000000000
>>> [624967.868391] R10: 0000000000000000 R11: 00000000ffffffff R12:
>>> ffff880107c9e180
>>> [624967.868393] R13: 0000000000000001 R14: 0000000000000000 R15:
>>> ffff880116802300
>>> [624967.868396] FS: 0000000000000000(0000) GS:ffff880001a00000(0000)
>>> knlGS:0000000000000000
>>> [624967.868398] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
>>> [624967.868400] CR2: 0000000000000000 CR3: 00000000015c8000 CR4:
>>> 00000000000406f0
>>> [624967.868403] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
>>> 0000000000000000
>>> [624967.868405] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
>>> 0000000000000400
>>> [624967.868408] Process rpciod/0 (pid: 2267, threadinfo
>>> ffff880107e8c000, task ffff880116802300)
>>> [624967.868410] Stack:
>>> [624967.868411] 0000000000012300 ffff880107c9e180 ffff880022c5a000
>>> 0000000000000001
>>> [624967.868415]<0> ffff880107e8dde0 ffffffffa04934d0 ffff880107c9e180
>>> ffff880107c9e1f0
>>> [624967.868419]<0> ffff880107e8de00 ffffffffa040ab17 0000000000000001
>>> ffff880107c9e180
>>> [624967.868423] Call Trace:
>>> [624967.868435] [<ffffffffa04934d0>]
>>> nfs41_sequence_call_done+0x20/0x100 [nfs]
>>> [624967.868447] [<ffffffffa040ab17>] rpc_exit_task+0x27/0x60 [sunrpc]
>>> [624967.868457] [<ffffffffa040b322>] __rpc_execute+0xa2/0x290 [sunrpc]
>>> [624967.868466] [<ffffffffa040b510>] ? rpc_async_schedule+0x0/0x20 [sunrpc]
>>> [624967.868475] [<ffffffffa040b520>] rpc_async_schedule+0x10/0x20 [sunrpc]
>>> [624967.868481] [<ffffffff81059fed>] worker_thread+0x12d/0x1f0
>>> [624967.868485] [<ffffffff8105e530>] ? autoremove_wake_function+0x0/0x40
>>> [624967.868488] [<ffffffff81059ec0>] ? worker_thread+0x0/0x1f0
>>> [624967.868491] [<ffffffff8105e08e>] kthread+0x8e/0xa0
>>> [624967.868495] [<ffffffff81003b54>] kernel_thread_helper+0x4/0x10
>>> [624967.868498] [<ffffffff8105e000>] ? kthread+0x0/0xa0
>>> [624967.868501] [<ffffffff81003b50>] ? kernel_thread_helper+0x0/0x10
>>> [624967.868503] Code: 08 80 fa 80 74 73 48 8b 0b 0f b6 c2 48 c1 e0 02 48
>>> 03 41 60 8b 4b 0c 81 f9 e8 d8 ff ff 0f 84 26 01 00 00 85 c9 0f 85 fe 00
>>> 00 00<83> 00 01 48 8b 03 4c 8b 6b 10 4c 8b a0 38 02 00 00 49 8d bc 24
>>> [624967.868532] RIP [<ffffffffa0492f42>] nfs41_sequence_done+0x52/0x2e0
>>> [nfs]
>>> [624967.868544] RSP<ffff880107e8dda0>
>>> [624967.868546] CR2: 0000000000000000
>>> [624967.868548] ---[ end trace a7919e7f17c0a727 ]---
>>>
>>>
>>> Tigran.
>>> --
>>> To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
>>> the body of a message to [email protected]
>>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>

2010-09-17 06:33:58

by Mkrtchyan, Tigran

[permalink] [raw]
Subject: Re: kernel panic

On 09/16/2010 05:35 PM, Benny Halevy wrote:
> On 2010-09-15 15:21, Tigran Mkrtchyan wrote:
>> This is pnfs-all-latest git fa5a03da84b02026396be0736288b3f4a8143ff2
> Hmm, it's pnfs-all-2.6.35 by now :)

I already moved my desktop and 2.6.36-rc3 git
7c40d303e13ec2f2e0b6cf217c008106b391d058
and farm nodes will be upgraded today.
> but nevertheless, the IP below doesn't seem to agree with the assembly
> code for nfs41_sequence_done.
> Do mind running gdb on your binary (fs/nfs/nfs.ko) and locating
I will do that next time. Unfortunately when I got your mail my system was
running newer kernel.

Thanks
Tigran.

P.S: the rss feed from git does not show rebases and I am missing latest
updates. Could you send a e-mail around whem you merge?
> the exact line and cpu instruction to see what's going on?
>
> Thanks,
>
> Benny
>
>> $ uname -a
>> Linux anahit 2.6.35-pnfs-2 #22 SMP Fri Aug 27 17:47:27 CEST 2010 x86_64
>> x86_64 x86_64 GNU/Linux
>> $
>>
>> On server restart:
>>
>> [624967.868286] BUG: unable to handle kernel NULL pointer dereference at
>> (null)
>> [624967.868291] IP: [<ffffffffa0492f42>] nfs41_sequence_done+0x52/0x2e0
>> [nfs]
>> [624967.868312] PGD 0
>> [624967.868315] Oops: 0002 [#1] SMP
>> [624967.868317] last sysfs file:
>> /sys/devices/pci0000:00/0000:00:1a.7/usb1/1-5/1-5:1.0/host8/target8:0:0/8:0:0:0/block/sdb/sdb1/stat
>> [624967.868321] CPU 0
>> [624967.868322] Modules linked in: nfs_layout_nfsv41_files snd_pcm_oss
>> snd_mixer_oss snd_seq edd rpcsec_gss_krb5 vboxnetadp vboxnetflt nfs
>> lockd fscache nfs_acl auth_rpcgss sunrpc vboxdrv cpufreq_conservative
>> cpufreq_userspace cpufreq_powersave acpi_cpufreq mperf fuse loop dm_mod
>> snd_hda_codec_idt snd_usb_audio snd_hda_intel snd_hda_codec snd_hwdep
>> iTCO_wdt snd_pcm sr_mod snd_timer iTCO_vendor_support snd_usbmidi_lib sg
>> cdrom pcspkr serio_raw snd_rawmidi snd_seq_device ohci1394 ieee1394
>> i2c_i801 button snd microcode e1000e snd_page_alloc ext4 jbd2 crc16 fan
>> processor ide_pci_generic ide_core ata_generic pata_marvell thermal
>> thermal_sys
>> [624967.868363]
>> [624967.868366] Pid: 2267, comm: rpciod/0 Tainted: G I
>> 2.6.35-pnfs-2 #22 DX38BT/pczW1007
>> [624967.868368] RIP: 0010:[<ffffffffa0492f42>] [<ffffffffa0492f42>]
>> nfs41_sequence_done+0x52/0x2e0 [nfs]
>> [624967.868382] RSP: 0018:ffff880107e8dda0 EFLAGS: 00010246
>> [624967.868384] RAX: 0000000000000000 RBX: ffff88012d28ca98 RCX:
>> 0000000000000000
>> [624967.868386] RDX: 0000000000000000 RSI: ffff88012d28ca98 RDI:
>> ffff880107c9e180
>> [624967.868388] RBP: ffff880107e8ddc0 R08: 0000000000000000 R09:
>> 0000000000000000
>> [624967.868391] R10: 0000000000000000 R11: 00000000ffffffff R12:
>> ffff880107c9e180
>> [624967.868393] R13: 0000000000000001 R14: 0000000000000000 R15:
>> ffff880116802300
>> [624967.868396] FS: 0000000000000000(0000) GS:ffff880001a00000(0000)
>> knlGS:0000000000000000
>> [624967.868398] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
>> [624967.868400] CR2: 0000000000000000 CR3: 00000000015c8000 CR4:
>> 00000000000406f0
>> [624967.868403] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
>> 0000000000000000
>> [624967.868405] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
>> 0000000000000400
>> [624967.868408] Process rpciod/0 (pid: 2267, threadinfo
>> ffff880107e8c000, task ffff880116802300)
>> [624967.868410] Stack:
>> [624967.868411] 0000000000012300 ffff880107c9e180 ffff880022c5a000
>> 0000000000000001
>> [624967.868415]<0> ffff880107e8dde0 ffffffffa04934d0 ffff880107c9e180
>> ffff880107c9e1f0
>> [624967.868419]<0> ffff880107e8de00 ffffffffa040ab17 0000000000000001
>> ffff880107c9e180
>> [624967.868423] Call Trace:
>> [624967.868435] [<ffffffffa04934d0>]
>> nfs41_sequence_call_done+0x20/0x100 [nfs]
>> [624967.868447] [<ffffffffa040ab17>] rpc_exit_task+0x27/0x60 [sunrpc]
>> [624967.868457] [<ffffffffa040b322>] __rpc_execute+0xa2/0x290 [sunrpc]
>> [624967.868466] [<ffffffffa040b510>] ? rpc_async_schedule+0x0/0x20 [sunrpc]
>> [624967.868475] [<ffffffffa040b520>] rpc_async_schedule+0x10/0x20 [sunrpc]
>> [624967.868481] [<ffffffff81059fed>] worker_thread+0x12d/0x1f0
>> [624967.868485] [<ffffffff8105e530>] ? autoremove_wake_function+0x0/0x40
>> [624967.868488] [<ffffffff81059ec0>] ? worker_thread+0x0/0x1f0
>> [624967.868491] [<ffffffff8105e08e>] kthread+0x8e/0xa0
>> [624967.868495] [<ffffffff81003b54>] kernel_thread_helper+0x4/0x10
>> [624967.868498] [<ffffffff8105e000>] ? kthread+0x0/0xa0
>> [624967.868501] [<ffffffff81003b50>] ? kernel_thread_helper+0x0/0x10
>> [624967.868503] Code: 08 80 fa 80 74 73 48 8b 0b 0f b6 c2 48 c1 e0 02 48
>> 03 41 60 8b 4b 0c 81 f9 e8 d8 ff ff 0f 84 26 01 00 00 85 c9 0f 85 fe 00
>> 00 00<83> 00 01 48 8b 03 4c 8b 6b 10 4c 8b a0 38 02 00 00 49 8d bc 24
>> [624967.868532] RIP [<ffffffffa0492f42>] nfs41_sequence_done+0x52/0x2e0
>> [nfs]
>> [624967.868544] RSP<ffff880107e8dda0>
>> [624967.868546] CR2: 0000000000000000
>> [624967.868548] ---[ end trace a7919e7f17c0a727 ]---
>>
>>
>> Tigran.
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-nfs" in
>> the body of a message to [email protected]
>> More majordomo info at http://vger.kernel.org/majordomo-info.html


2010-09-16 15:35:10

by Benny Halevy

[permalink] [raw]
Subject: Re: kernel panic

On 2010-09-15 15:21, Tigran Mkrtchyan wrote:
>
> This is pnfs-all-latest git fa5a03da84b02026396be0736288b3f4a8143ff2

Hmm, it's pnfs-all-2.6.35 by now :)
but nevertheless, the IP below doesn't seem to agree with the assembly
code for nfs41_sequence_done.
Do mind running gdb on your binary (fs/nfs/nfs.ko) and locating
the exact line and cpu instruction to see what's going on?

Thanks,

Benny

> $ uname -a
> Linux anahit 2.6.35-pnfs-2 #22 SMP Fri Aug 27 17:47:27 CEST 2010 x86_64
> x86_64 x86_64 GNU/Linux
> $
>
> On server restart:
>
> [624967.868286] BUG: unable to handle kernel NULL pointer dereference at
> (null)
> [624967.868291] IP: [<ffffffffa0492f42>] nfs41_sequence_done+0x52/0x2e0
> [nfs]
> [624967.868312] PGD 0
> [624967.868315] Oops: 0002 [#1] SMP
> [624967.868317] last sysfs file:
> /sys/devices/pci0000:00/0000:00:1a.7/usb1/1-5/1-5:1.0/host8/target8:0:0/8:0:0:0/block/sdb/sdb1/stat
> [624967.868321] CPU 0
> [624967.868322] Modules linked in: nfs_layout_nfsv41_files snd_pcm_oss
> snd_mixer_oss snd_seq edd rpcsec_gss_krb5 vboxnetadp vboxnetflt nfs
> lockd fscache nfs_acl auth_rpcgss sunrpc vboxdrv cpufreq_conservative
> cpufreq_userspace cpufreq_powersave acpi_cpufreq mperf fuse loop dm_mod
> snd_hda_codec_idt snd_usb_audio snd_hda_intel snd_hda_codec snd_hwdep
> iTCO_wdt snd_pcm sr_mod snd_timer iTCO_vendor_support snd_usbmidi_lib sg
> cdrom pcspkr serio_raw snd_rawmidi snd_seq_device ohci1394 ieee1394
> i2c_i801 button snd microcode e1000e snd_page_alloc ext4 jbd2 crc16 fan
> processor ide_pci_generic ide_core ata_generic pata_marvell thermal
> thermal_sys
> [624967.868363]
> [624967.868366] Pid: 2267, comm: rpciod/0 Tainted: G I
> 2.6.35-pnfs-2 #22 DX38BT/pczW1007
> [624967.868368] RIP: 0010:[<ffffffffa0492f42>] [<ffffffffa0492f42>]
> nfs41_sequence_done+0x52/0x2e0 [nfs]
> [624967.868382] RSP: 0018:ffff880107e8dda0 EFLAGS: 00010246
> [624967.868384] RAX: 0000000000000000 RBX: ffff88012d28ca98 RCX:
> 0000000000000000
> [624967.868386] RDX: 0000000000000000 RSI: ffff88012d28ca98 RDI:
> ffff880107c9e180
> [624967.868388] RBP: ffff880107e8ddc0 R08: 0000000000000000 R09:
> 0000000000000000
> [624967.868391] R10: 0000000000000000 R11: 00000000ffffffff R12:
> ffff880107c9e180
> [624967.868393] R13: 0000000000000001 R14: 0000000000000000 R15:
> ffff880116802300
> [624967.868396] FS: 0000000000000000(0000) GS:ffff880001a00000(0000)
> knlGS:0000000000000000
> [624967.868398] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
> [624967.868400] CR2: 0000000000000000 CR3: 00000000015c8000 CR4:
> 00000000000406f0
> [624967.868403] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
> 0000000000000000
> [624967.868405] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7:
> 0000000000000400
> [624967.868408] Process rpciod/0 (pid: 2267, threadinfo
> ffff880107e8c000, task ffff880116802300)
> [624967.868410] Stack:
> [624967.868411] 0000000000012300 ffff880107c9e180 ffff880022c5a000
> 0000000000000001
> [624967.868415] <0> ffff880107e8dde0 ffffffffa04934d0 ffff880107c9e180
> ffff880107c9e1f0
> [624967.868419] <0> ffff880107e8de00 ffffffffa040ab17 0000000000000001
> ffff880107c9e180
> [624967.868423] Call Trace:
> [624967.868435] [<ffffffffa04934d0>]
> nfs41_sequence_call_done+0x20/0x100 [nfs]
> [624967.868447] [<ffffffffa040ab17>] rpc_exit_task+0x27/0x60 [sunrpc]
> [624967.868457] [<ffffffffa040b322>] __rpc_execute+0xa2/0x290 [sunrpc]
> [624967.868466] [<ffffffffa040b510>] ? rpc_async_schedule+0x0/0x20 [sunrpc]
> [624967.868475] [<ffffffffa040b520>] rpc_async_schedule+0x10/0x20 [sunrpc]
> [624967.868481] [<ffffffff81059fed>] worker_thread+0x12d/0x1f0
> [624967.868485] [<ffffffff8105e530>] ? autoremove_wake_function+0x0/0x40
> [624967.868488] [<ffffffff81059ec0>] ? worker_thread+0x0/0x1f0
> [624967.868491] [<ffffffff8105e08e>] kthread+0x8e/0xa0
> [624967.868495] [<ffffffff81003b54>] kernel_thread_helper+0x4/0x10
> [624967.868498] [<ffffffff8105e000>] ? kthread+0x0/0xa0
> [624967.868501] [<ffffffff81003b50>] ? kernel_thread_helper+0x0/0x10
> [624967.868503] Code: 08 80 fa 80 74 73 48 8b 0b 0f b6 c2 48 c1 e0 02 48
> 03 41 60 8b 4b 0c 81 f9 e8 d8 ff ff 0f 84 26 01 00 00 85 c9 0f 85 fe 00
> 00 00 <83> 00 01 48 8b 03 4c 8b 6b 10 4c 8b a0 38 02 00 00 49 8d bc 24
> [624967.868532] RIP [<ffffffffa0492f42>] nfs41_sequence_done+0x52/0x2e0
> [nfs]
> [624967.868544] RSP <ffff880107e8dda0>
> [624967.868546] CR2: 0000000000000000
> [624967.868548] ---[ end trace a7919e7f17c0a727 ]---
>
>
> Tigran.
> --
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