[stgt] tgtd segfault with software RAID, hard resetting link
mangoo at wpkg.org
Tue Apr 21 12:30:36 CEST 2009
Tomasz Chmielewski schrieb:
>> Tomasz, any chance to test the patch?
> Now, tgtd survives 100 iterations here (with /dev/sdd being a part of
> software RAID-5 array):
> i=1; while [ $i -ne 100 ] ; do hdparm -Y /dev/sdd; i=$((i+1)); done
> Previously, it would segfault after ~10 iterations.
It segfaults elsewhere now ;)
Doing "hdparm -Y /dev/sdd" in a loop so many times resulted in IO errors
on the initiator as a result of timeout values not high enough in
So I rebooted the initiator without logging it out of the target, with
"echo b >/proc/sysrq-trigger" (it's a diskless initiator, so basically
that's the only method when its disks are gone).
Initiator started to boot again and I think tgtd segfaulted when the
initiator tried to log in to the target.
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