Date: Tue, 7 Nov 2006 18:10:30 GMT From: "Kevin Thompson" <kevin@antiduh.com> To: freebsd-alpha@FreeBSD.org Subject: Re: alpha/105134: 'panic: lockmgr: thread ... not exclusive lock owner' on SMP Alpha EV6 machine Message-ID: <200611071810.kA7IAUsO097789@freefall.freebsd.org>
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The following reply was made to PR alpha/105134; it has been noted by GNATS. From: "Kevin Thompson" <kevin@antiduh.com> To: bug-followup@freebsd.org, antiduh@csh.rit.edu Cc: Subject: Re: alpha/105134: 'panic: lockmgr: thread ... not exclusive lock owner' on SMP Alpha EV6 machine Date: Tue, 07 Nov 2006 13:08:17 -0500 I turned on the following kernel options and tried to reproduce it - no luck. I had it running make -j2 buildworld repeatedly and it was still running a day later. options WITNESS options INVARIANTS options INVARIANT_SUPPORT options DIAGNOSTIC Preemption was still off. Of mention, I couldn't get the kernel to compile with options DEBUG_LOCKS on. The only output that I got every once in a while were the following: Expensive timeout(9) function: 0xfffffc00005f7820(0) 0.002491656 s Expensive timeout(9) function: 0xfffffc000054f7c0(0xfffffc005f928810) 0.010740188 s Expensive timeout(9) function: 0xfffffc00005746e0(0) 0.011898436 s Expensive timeout(9) function: 0xfffffc000054f7c0(0xfffffc005f929830) 0.012660264 s I'm going to try to turn PREEMPTION back on and see if I can reproduce it. --Kevinhome | help
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