Date: Mon, 15 Mar 2010 09:32:10 +0100 From: Borja Marcos <borjam@sarenet.es> To: Pawel Jakub Dawidek <pjd@FreeBSD.org> Cc: freebsd-fs@freebsd.org Subject: Re: Many processes stuck in zfs Message-ID: <D64FFD50-E222-42D2-9942-27E8BBFE5337@sarenet.es> In-Reply-To: <20100313152429.GH3209@garage.freebsd.pl> References: <864468D4-DCE9-493B-9280-00E5FAB2A05C@lassitu.de> <20100309122954.GE3155@garage.freebsd.pl> <EC9BC6B4-8D0E-4FE3-852F-0E3A24569D33@sarenet.es> <20100309125815.GF3155@garage.freebsd.pl> <CB854F58-03AF-46DD-8153-85FA96037C21@sarenet.es> <BFF1E2D6-B48A-4A5E-ACEE-8577FDB07820@sarenet.es> <20100310110202.GA1715@garage.freebsd.pl> <E04F91AA-B2C4-4166-A24A-74F1BEF01519@sarenet.es> <20100310173143.GD1715@garage.freebsd.pl> <27A6DF40-2EA8-4CFC-9E42-DD995E2F9342@sarenet.es> <20100313152429.GH3209@garage.freebsd.pl>
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On Mar 13, 2010, at 4:24 PM, Pawel Jakub Dawidek wrote: > On Fri, Mar 12, 2010 at 11:12:49AM +0100, Borja Marcos wrote: >>=20 >> On Mar 10, 2010, at 6:31 PM, Pawel Jakub Dawidek wrote: >>=20 >>> Hmm, interesting. Especially those two traces: >>>=20 >>> Tracing command zfs pid 1820 tid 100105 td 0xffffff0002ca4000 >>=20 >> Just in case something was wrong, I wiped the two virtual machines = and started everything again. The two virtual systems were acting a bit = weird, giving lots of LORs. I don't know why, maybe something was = corrupted, these virtual machines have been panicked and restarted many = times. >>=20 >> So, experiment repeated again, fresh start. Still deadlocking pretty = soon if I start, say, 5 or 6 tar processes. Traces follow. >=20 > Are you able to dump the kernel memory and make it available for me > somewhere? I'd need to look at it wit GDB, as DDB is not enough here, > I'm afraid. Sure. Do you have access to VMWare Fusion? I can create a snapshot of = the deadlocked system and make it available to you. Borja.
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