Date: Tue, 23 Oct 2007 11:35:11 +0200 From: "Arjan van Leeuwen" <avleeuwen@gmail.com> To: "Tim Bishop" <tim-lists@bishnet.net> Cc: Kostik Belousov <kostikbel@gmail.com>, Pieter de Goeje <pieter@degoeje.nl>, freebsd-current@freebsd.org, Rolf Witt <fbsd-st@donut.de> Subject: Re: panic: ffs_blkfree: freeing free block Message-ID: <d86b48730710230235y78865ed4nd2849ed3f01a92d5@mail.gmail.com> In-Reply-To: <20071019091249.GI88271@carrick.bishnet.net> References: <200710131857.46963.pieter@degoeje.nl> <200710140408.46121.pieter@degoeje.nl> <471427BE.10500@freebsd.org> <d86b48730710160320i4edd98b9v94e451c1e5f6531b@mail.gmail.com> <20071016112907.GD6511@deviant.kiev.zoral.com.ua> <4715FAA7.7030404@freebsd.org> <20071018093948.GN6511@deviant.kiev.zoral.com.ua> <d86b48730710180259u4dccccdcx245bc333c41258e3@mail.gmail.com> <d86b48730710180940h4f29cdden3c48c23a75328819@mail.gmail.com> <20071019091249.GI88271@carrick.bishnet.net>
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2007/10/19, Tim Bishop <tim-lists@bishnet.net>: > > On Thu, Oct 18, 2007 at 06:40:04PM +0200, Arjan van Leeuwen wrote: > > > are softupdates on ? > > > > > > Yes. Turning them off seems to fix the problem (fingers crossed - I > only > > > turned it off this morning, didn't have a panic yet) > > > > After working for a whole day without softupdates, I can say that > turning > > them off at least causes less panics to happen than with them turned on, > > maybe they even don't happen at all without softupdates; I haven't had a > > panic all day, while I have one every few hours with softupdates turned > on. > > I've been running for the best part of a day now with softupdates turned > off and so far no panics. I'm running tinderbox on the host, and it > would quite reliably crash it before. > > Of course it's hard to say if this has fixed the problem... maybe it > doesn't happen as often, or maybe my data is being slowly chewed up > instead ;-) It looks like on the same system, I'm able to reliably panic zfs as well, under the exact same conditions (i.e. linking a particularly big piece of software). Maybe this is not a problem in the filesystem at all. I've not been able to get a coredump yet from the zfs panic. This is in 7.0-PRERELEASE, btw (I switched to RELENG_7 when the branching happened).
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