Date: Wed, 17 Oct 2012 19:39:46 +0300 From: Andriy Gapon <avg@FreeBSD.org> To: Adam Vande More <amvandemore@gmail.com> Cc: freebsd-fs@FreeBSD.org, dg17@penx.com, Dennis Glatting <dg@pki2.com> Subject: Re: I have a DDB session open to a crashed ZFS server Message-ID: <507EDF52.4050705@FreeBSD.org> In-Reply-To: <CA%2BtpaK3EkYKj5Qb-=Pfti5ybVcTPPRK25pf3Jq4tDTixFfwi%2BA@mail.gmail.com> References: <1350317019.71982.50.camel@btw.pki2.com> <201210160844.41042.jhb@freebsd.org> <1350400597.72003.32.camel@btw.pki2.com> <201210161215.33369.jhb@freebsd.org> <507D8B69.3090903@FreeBSD.org> <alpine.BSF.2.00.1210161139060.22959@btw.pki2.com> <0B0CA833-79FA-4C8E-86AC-828E7947FF67@gmail.com> <507EC242.1070809@FreeBSD.org> <CA%2BtpaK3EkYKj5Qb-=Pfti5ybVcTPPRK25pf3Jq4tDTixFfwi%2BA@mail.gmail.com>
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on 17/10/2012 19:06 Adam Vande More said the following: > On Wed, Oct 17, 2012 at 9:35 AM, Andriy Gapon <avg@freebsd.org > <mailto:avg@freebsd.org>> wrote: > > on 17/10/2012 10:04 Nikolay Denev said the following: > > I'm running with the patch from here : > http://thread.gmane.org/gmane.os.freebsd.devel.file-systems/16000/focus=16017 > > And there were no deadlocks since it's applied. > > If you're hitting the same issue as I was, this should help. > > I am going to commit that change soon-ish, if nobody expressly objects to it. > > > I imagine you don't have much to do with the release process, but this seems to be > a rather major bug warranting serious consideration about inserting into the 9_1 > branch prior to final release. No, I don't think so. The bug can only be triggered by running out of KVA space (vm.kmem_map_free getting too low), and that can be worked around by increasing vm.kmem_size via a loader tunable. I hear that a value twice the physical memory size is pretty safe. -- Andriy Gapon
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