Date: Sat, 30 May 2009 10:54:26 -0500 (CDT) From: Larry Rosenman <ler@lerctr.org> To: Kip Macy <kmacy@freebsd.org> Cc: freebsd-current@freebsd.org Subject: Re: ZFS Crash Message-ID: <alpine.BSF.2.00.0905301051560.2727@borg> In-Reply-To: <alpine.BSF.2.00.0905300718220.14401@thebighonker.lerctr.org> References: <alpine.BSF.2.00.0905250040230.1781@borg> <454b8cc37c60ab7af2663ba70ddbfd59.squirrel@webmail.lerctr.org> <5a9a181a12e9e4ef864d23ae063f7277.squirrel@webmail.lerctr.org> <alpine.BSF.2.00.0905250803350.79867@borg> <alpine.BSF.2.00.0905260702300.1820@borg> <3c1674c90905280055h740bce23p33b18fefacf31196@mail.gmail.com> <alpine.BSF.2.00.0905280724480.58845@borg> <alpine.BSF.2.00.0905291242060.77764@thebighonker.lerctr.org> <3c1674c90905291129h7bd6fb6ai6ab772e3aed624d@mail.gmail.com> <alpine.BSF.2.00.0905291407080.81644@thebighonker.lerctr.org> <3c1674c90905291209k3f5e90f9g8743a27b572010cc@mail.gmail.com> <alpine.BSF.2.00.0905300718220.14401@thebighonker.lerctr.org>
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On Sat, 30 May 2009, Larry Rosenman wrote: > On Fri, 29 May 2009, Kip Macy wrote: > >>> Is there anything else I can supply? Is the minute-by-minute >>> vmstat info useful? Should I keep running it? >> >> Not until I can test out changes that bound ZFS memory consumption >> when doing compression. >> >>> I'm willing to be a guinea pig for code changes. >> >> Cool. I'll send you a patch when I get something. > I had a 2nd crash. I've added the textdump and crashstats files to > http://www.lerctr.org/~ler/ZFS_CRASH > > This was also with a full backup. The backtrace that was on the screen is > in the textdump > so I didn't bother to get the picture. And a 3rd crash. I had set debug.ddb.textdump.pending to 0 hoping that it would cause the scripts to run. It didn't, and we didn't get a textdump at all (system rebooted on it's own). Is there a limit I can set that would leave enough memory for the (de)compression stuff should have enough memory? Currently running with no tunables set. Loader.conf: ----- #geom_raid3_load="YES" #boot_verbose="-v" kern.ipc.semmns=4096 kern.ipc.semmni=2048 machdep.hyperthreading_allowed=1 zfs_load="YES" cpuctl_load="YES" ###Temp till increased by RE@### #vm.kmem_size_max=1G #vm.kmem_size_max=4294967296 #vm.kmem_size_max=4g #vfs.zfs.arc_max=4g ###Temp till increased by RE@### #kern.hwpmc.mtxpoolsize=256 #kern.hwpmc.nsamples=256 #kern.hwpmc.hashsize=256 #kern.hwpmc.callchaindepth=8 #kern.hwpmc.nbuffers=256 #kern.hwpmc.logbuffersize=4 ---- -- Larry Rosenman http://www.lerctr.org/~ler Phone: +1 512-248-2683 E-Mail: ler@lerctr.org US Mail: 430 Valona Loop, Round Rock, TX 78681-3893
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