Date: Thu, 27 Oct 2005 12:56:35 +0200 From: Bjoern Koenig <bkoenig@cs.tu-berlin.de> To: Kris Kennaway <kris@obsecurity.org> Cc: current@freebsd.org Subject: Re: deadlocks with SMP and Pentium 3 Message-ID: <4360B263.1070802@cs.tu-berlin.de> In-Reply-To: <20051026073915.GA77249@xor.obsecurity.org> References: <435F2BCE.1040704@cs.tu-berlin.de> <20051026073915.GA77249@xor.obsecurity.org>
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Kris Kennaway wrote: > You need to break to DDB, trace processes and examine lock state with > commands like 'show alllocks' and 'show lockedvnods' to see what is > going on. Unfortunately the machine freezes completely and I can't break to the debugger anymore. It happens absolutely unforeseen, therefore I can't examine states shortly before it freezes. I run several instances of 'unixbench shell' and 'ubench -c'; sometimes it takes a few seconds and sometimes 10 minutes until the machine stops working. I like to except hardware failures, because FreeBSD 4.11 and Windows Server 2003 run under high load without problems for several hours. I'll spend some more time. Thanks Björn
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