gvinum: raid5 rebuild hangs on md disk

[Greg 'groggy' Lehey]

On Wednesday, 24 November 2004 at 14:28:49 +0100, Lukas Ertl wrote:
> On Wed, 24 Nov 2004, Jan-Oliver Neumann wrote:
>
>> The raid5 plex is running fine with this setup and after killing one of
>> the mds using "mdconfig -d -u 0", the raid5 plex is running correctly in
>> degraded mode. When I reattach the md, the "lost" subdisk shows up again
>> as "stale", but when restarting the plex, the rebuild process stalls at
>> 0%, the plex continues to operate in "degraded" mode. Rest of the system
>> is not affected, I am running 5-STABLE as of Nov 24th.
>
> Hmmm, it seems the threads blocks somewhere.  I need to investigate this
> further.  I guess it should be able to rebuild fine after a reboot, but
> this is an md device it's not really useful. :-)

Without a backtrace, there's little you can do one way or another.

Greg
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