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[Bug 287411] Kernel loses track of CWD of process



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https://bugzilla.redhat.com/show_bug.cgi?id=287411





--- Comment #54 from Ian Kent <ikent redhat com>  2009-05-27 20:04:16 EDT ---
(In reply to comment #53)
> Created an attachment (id=345627)
 --> (https://bugzilla.redhat.com/attachment.cgi?id=345627) [details]
> /var/log/debug.gz
> 
> Well, USE_MISC_DEVICE="yes" was missing (I run cfengine and it had replaced
> /etc/sysconfig/autofs).  Added it in but it didn't have any effect.  I've
> attached /var/log/debug.gz with autofs debug logging turned on.  Hibernated at
> 9:04:56, awake at 9:06:00.  

Thanks for the log.
It is quite interesting.

It shows autofs wasn't restarted and hasn't unlinked the mounts
but what your seeing, the path corruption, must be due to the
mount being unlinked. The cwd proc file uses a kernel call to
calculate the path and it returns the path up to the point at
which the mount was unlinked.

That leaves us with the question of what happens when a machine
hibernates? I'll ask around and see if anyone can enlighten me
on what goes on at hibernate time.

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