ZFS related kernel panic

Andriy Gapon avg at icyb.net.ua
Thu Sep 16 11:17:49 UTC 2010


on 16/09/2010 13:58 Alexander Motin said the following:
> Thanks to console access provided, I have found the reason of crash.
> Attached patch should fix it. Patched system successfully runs the
> stress test for 45 minutes now, comparing to crashing in few minutes
> without it.
> 
> Also I've found that timeouts reported by the driver are not fatal.
> Affected commands are correctly completing as soon as after detecting
> time out driver freezes new incoming requests to resolve situation, and
> as result, idling the bus. ones. These timeouts I think caused by some
> congestion on SATA interface, that probably caused by port multiplier.
> This panic could be triggered only by such fake timeouts, not the real


Can the same happen with ahci (in theory)?
Thanks a lot!

-- 
Andriy Gapon


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