Date: Thu, 14 Jan 2010 15:50:34 +0100 From: Ivan Voras <ivoras@freebsd.org> To: Doug Poland <doug@polands.org> Cc: freebsd-questions@freebsd.org Subject: Re: 8.0-R-p2 ZFS: unixbench causing kmem exhaustion panic Message-ID: <9bbcef731001140650h5d887843ubc6d555da993e8b6@mail.gmail.com> In-Reply-To: <27117211dd662bcf93055f4351243396.squirrel@email.polands.org> References: <8418112cdfada93d83ca0cb5307c1d21.squirrel@email.polands.org> <hil1e8$ebs$1@ger.gmane.org> <b78f9b16683331ad0f574ecfc1b7f995.squirrel@email.polands.org> <9bbcef731001131035x604cdea1t81b14589cb10ad25@mail.gmail.com> <b41ca31fbeacf104143509e8cba2fe66.squirrel@email.polands.org> <9bbcef731001131157h256c4d14mbb241bc4326405f8@mail.gmail.com> <3aa09fd8723749d1fa65f1b9a6faac60.squirrel@email.polands.org> <cb290c7a06dd633dfc1cd5bd8b4fd99a.squirrel@email.polands.org> <himnfv$acn$1@ger.gmane.org> <27117211dd662bcf93055f4351243396.squirrel@email.polands.org>
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2010/1/14 Doug Poland <doug@polands.org>: > > On Thu, January 14, 2010 03:17, Ivan Voras wrote: >> Doug Poland wrote: >>>>> >>>> Ok, I re-ran with same config, but this time monitoring the >>>> sysctls you requested* ( and the rest I was watching ): >>>> >>> I failed to mention that >>> >>> kstat.zfs.misc.arcstats.size >>> >>> seemed to fluctuate between about 164,000,00 and 180,000,000 bytes >>> during this last run >> >> Is that with or without panicking? >> > with a panic > > >> If the system did panic then it looks like the problem is a memory >> leak somewhere else in the kernel, which you could confirm by >> monitoring vmstat -z. >> > I'll give that a try. =C2=A0Am I looking for specific items in vmstat -z? > arc*, zil*, zfs*, zio*? =C2=A0Please advise. You should look for whatever is allocating all your memory between 180 MB (which is your ARC size) and 1.2 GB (which is your kmem size).
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