2010/2/22 Marcin Cieslak <saper_at_saper.info>: > > > > On Sat, 20 Feb 2010, Attilio Rao wrote: > >> 2010/2/18 Marcin Cieslak <saper_at_saper.info>: >>> >>> My r203753 amd64 laptop falls into the deadlock situation >>> every night while running periodic daily script. I am pretty >>> certain this is related to ZFS. >>> >>> I have enabled DEADLKRES in the kernel. I even have >>> a separate dump partition (not used for swap). >> >> May you reproduce the bug with WITNESS? >> If you can, you should enable DEADLKRES too and once it panics let >> extract a textdump(4) with the following commands: >> bt, ps, show alllocks, show pcpu, allthreads > > Unfortunately, there is no way to write anything to disk. > All attempts to talk to the ata subsystem from ddb(4) > fail with EIO (probably timeout). This may be a false positive. May you please try the following patch and report if you can fix it does fix it or not?: http://www.freebsd.org/~attilio/Sandvine/deadlkres/deadlkres-blessed.diff Thanks, Attilio -- Peace can only be achieved by understanding - A. EinsteinReceived on Thu Apr 08 2010 - 13:05:41 UTC
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