Bug 493317 - Kernel panic sunrpc, nfsd
Kernel panic sunrpc, nfsd
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel (Show other bugs)
i686 Linux
low Severity medium
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Assigned To: Jeff Layton
Red Hat Kernel QE team
Depends On:
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Reported: 2009-04-01 08:07 EDT by Kapetanakis Giannis
Modified: 2014-06-18 03:38 EDT (History)
10 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2013-07-02 10:54:27 EDT
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
panic trace (1.18 KB, text/plain)
2009-04-01 08:10 EDT, Kapetanakis Giannis
no flags Details

  None (edit)
Description Kapetanakis Giannis 2009-04-01 08:07:15 EDT

This is the 3rd time I get this kind of kernel panic.
I thought I should report it here.

OS: Centos 5.2 i386
CPU: dual Intel(R) Xeon(TM) CPU 2.40GHz
Kernel: 2.6.18-92.1.22.el5PAE #1 SMP
Mem: 4154240

EFLAGS: 00010206  (2.6.18-92.1.22.el5PAE #1)
EIP is at call_start+0x4e/0x5b [sunrpc]
eax: 34000045  ebx: f602b680  exc: f8d29344  edx: d86d9000
esi: e2235800  edi: 00000000  ebp: d3eb77c0  esp: d86d9f68
ds: 007b es: 007b ss: 0068
Process nfsv4-recall (pid: 22408, ti=d86d9000 task=d8091000 task,ti=d86d9000)
Stack:   f602b680 f602b6e8 f8d0fed9 f602b680 00000000 d86d9fa0 f8d0b94b ffffffff
         ffffffff e30c24f8 e30c252c fffffffb f8d9fb80 e2235800 f8daf4a0 e30c252c
         00000000 d6dfe340 e30c24f8 f5e95abc f8d9b289 00000000 f8d9b29d f8da289a
Call Trace:
[<f8d0fed9>] __rpc_execute+0x7a/0x1f8 [sunrpc]
[<f8d0b94b>] rpc_call_sync+0x6b/0x91 [sunrpc]
[<f8d9fb80>] nfsd4_cb_recall+0xa9/0xf0 [nfsd]
[<f8d9b289>] do_recall+0x0/0x19 [nfsd]
[<f8d9b29d>] do_recall+0x14/0x19 [nfsd]
[<c0436285>] kthread+0xc0/0xeb
[<c04361c5>] kthread+0x0/0xeb
[<c0405c3b>] kernel_thread_helper+0x7/0x10
Code: 43 1c ff 30 8b 46 30 ff 70 04 ff 76 18 0f b7 83 b0 00 00 00 50 68 cb 86 d1
 f8 e8 9b b9 71 c7 83 c4 18 8b 43 1c ff 40 10 8b 46 20 <ff> 40 18 c7 43 3c 9c b0
 d0 f8 5b 5e c3 f6 05 a8 e5 d2 f8 02 53
EIP: [<f8d0b08f>] call_start+0x4e/0x5b [sunrpc] SS:ESP 0068:d86d9f68
 <0>Kernel panic - not syncing: Fatal exception

I've also attached it just in case.

Best regards,

Comment 1 Kapetanakis Giannis 2009-04-01 08:10:11 EDT
Created attachment 337498 [details]
panic trace
Comment 2 Kapetanakis Giannis 2009-04-02 11:26:24 EDT
Today I updated to 5.3 and got another panic.

kernel: 2.6.18-128.1.6.el5PAE

I cannot, find a testcase to reproduce it on demand...

Comment 3 Tru Huynh 2010-03-05 10:47:05 EST
possible bug in 5.4 too -> http://bugs.centos.org/view.php?id=4229
Comment 4 Matt Bernstein 2010-04-24 13:52:34 EDT
[I'm the CentOS bug reporter]

Try "echo 0 >/proc/sys/fs/leases-enable" on the server.

After applying this horrible bodge my server (running 2.6.18-190.el5) has survived 52 days so far.

J. Bruce Fields said on the NFSv4 mailing list:

"Unfortunately that code has changed quite a bit since
2.6.18.  I don't recall this specific bug, but I wouldn't be suprised if
it's something we've since fixed.  Looking through 'gitk v2.6.18..
fs/nfsd/nfs4callback.c fs/nfsd/nfs4state.c' for delegation/callback
fixes might be one approach."
Comment 5 Javier Barrio 2010-12-01 05:00:55 EST

We are experiencing this issue on a CentOS 5.5 x86_64 server running 2.6.18-194.26.1.el5. It has happened twice in the last month. The hardware is a Dual Quad Core 12GB RAM serving both MySQL and NFS.

I am not sure if applying Matt Bernstein's solution is a good idea.

Is this bug scheduled to be fixed any time soon?
Comment 6 Matt Vogt 2011-01-31 19:30:59 EST
We're also seeing this on Red Hat EL 5.4 (2.6.18-164.6.1.el5). Virtual Machine (ESXi 4.1).
Comment 7 Ric Wheeler 2011-01-31 22:27:53 EST
It help us if you could open a ticket with the RHEL support channel so they can help collect information for our developers.

If you don't have an official RHEL subscription, the best place to raise this is on the linux-nfs email list with upstream developers.

Comment 8 Jeff Layton 2012-12-11 13:15:02 EST
Is this still reproducible on current RHEL5 kernels?
Comment 9 Jeff Layton 2013-07-02 10:54:27 EDT
No response in several months. Closing bug -- please reopen if you're able to reproduce on current RHEL5 kernels (5.9 or so).

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