8.1 amd64 lockup (maybe zfs or disk related)

Greg Bonett greg at bonett.org
Sun Feb 6 21:17:01 UTC 2011

Hi all,
I am experiencing hard lockup when running 8.1-RELEASE amd64.  The last
two times it has happened I was running a zpool scrub (high cpu and io
load).  /var/log/messages has some errors looking like:
kernel: ad0: FAILURE - READ_DMA4

but these didn't seem to correspond to the exact time of the lockup.  

any suggestions?


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