[OpenAFS] server process hang on salvage attempt

[Derrick J Brashear]

Is this unpatched 1.2.10? (Obviously you built it yourself, but that's 
fine)


On Fri, 2 Jul 2004, Joseph H Vilas wrote:

> Folks,
>
> I have a problem where attempting to salvage a volume results in a
> hung salvager and volserver.  The fileserver continues to run, but at
> very heavy CPU utilization.  The only way out of the problem seems to
> be a restart.  The machine:
>
>   delrey.acpub.duke.edu[230] uname -a
>   SunOS delrey.acpub.duke.edu 5.9 Generic_112233-11 sun4u sparc SUNW,Ultra-60
>   delrey.acpub.duke.edu[231] /usr/sbin/rxdebug localhost 7000 -version
>   Trying 127.0.0.1 (port 7000):
>   AFS version:  OpenAFS 1.2.10 built  2003-11-17
>   delrey.acpub.duke.edu[232] /usr/sbin/rxdebug localhost 7005 -version
>   Trying 127.0.0.1 (port 7005):
>   AFS version:  OpenAFS 1.2.10 built  2003-11-17
>
> We're using namei.
>
> At first I thought this was a problem with a particular volume.  The
> volume definitely had a problem, but vos move still got it off after
> restarting the server instances.  Then a salvage on another, normal
> volume on the same partition still caused the problem.  We didn't have
> time in our outage window to go through another restart cycle, and I
> didn't try a salvage of another partition or any whole partition.
>
> The salvager is getting this far:
>
>   @(#) OpenAFS 1.2.10 built  2003-11-17
>   06/25/2004 20:31:38 STARTING AFS SALVAGER 2.4 (/usr/libexec/openafs/salvager /vicepc 536889470)
>
> Then it hangs.  The volserver will answer a vos status request, but
> any request for real information (like vos listvol) will not return.
> It looks like the fssync thread in the fileserver is just not coming
> back.  In any case, running the salvager reliably produced this
> problem 3-4 times.  The machine has otherwise been operating just fine
> for about 2 1/2 months.
>
> I have a gcore from the fileserver while it was apparently
> dysfunctional.  What other information could I provide that would be
> of any help?
>
> Joe
>
> --
> Joseph H Vilas  jhv@duke.edu  1-919-660-6902
> Box 90132, Duke University, Durham, NC 27708-0132
> "I want to live in a society where people are intoxicated
> with the joy of making things." -- William Coperthwaite
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