Bug 223806 - NFSv4 rpciod waiting on sync task! kernel 2.6.9-42
NFSv4 rpciod waiting on sync task! kernel 2.6.9-42
Status: CLOSED DUPLICATE of bug 228292
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel (Show other bugs)
4.4
All Linux
medium Severity urgent
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Assigned To: Jeff Layton
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Depends On:
Blocks:
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Reported: 2007-01-22 10:56 EST by Dannis
Modified: 2007-11-16 20:14 EST (History)
3 users (show)

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Doc Type: Bug Fix
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Last Closed: 2007-07-17 15:55:28 EDT
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Description Dannis 2007-01-22 10:56:29 EST
NFSv4, often client crash one at three times per day and
I see this error in log "rpciod waiting on sync task!", 
It's not a really crash, but it's similar, because the user can't do nothing
and other users can't login to the station, but root can if Ctrl C is pushed at 
login. lsof doesn't work and tcpdump show nothing bad.

I see a similar problem on bugzilla and Steve Dickson said that it will be 
fixed in the upcoming release of RHEL4.
But I can't go to the bug
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=194793 

Version-Release number of selected component (if applicable):
We are using NFSv4 on RedHat 4 Enterprise kernel 2.6.9-42
All clients and servers run on kernel 2.6.9-42, but servers and clusters are 64-
bit

How reproducible:
I can reproduce the bug with the software subversion on a CVS folder.

Additional info:
Is it a problem with socket ?
Is it a problem with open lock file on NFS ?
Comment 1 Ronald Cole 2007-03-07 22:07:15 EST
I'm seeing the same thing.  kernel 2.6.9-42.0.8.  NFSv4 server and clients are
64-bit.  And I can't go to that bug, either.  Sure wish there were at least a
workaround!
Comment 2 Ronald Cole 2007-03-07 22:13:54 EST
Oh yeah, the rpciod process on the client is in state "D".  Is there a known bug
where this process gets deadlocked?
Comment 3 Jeff Layton 2007-07-17 15:53:43 EDT
I believe I have a patch going into 4.6 that should fix this problem. If you
have a non-critical place to do so, please test the kernels on my people page
and let me know if they resolve the issue:

http://people.redhat.com/jlayton
Comment 4 Jeff Layton 2007-07-17 15:55:28 EDT

*** This bug has been marked as a duplicate of 228292 ***

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