Date: Tue, 10 May 2005 16:54:27 -0400 From: Garance A Drosihn <drosih@rpi.edu> To: Marcel Moolenaar <marcel@xcllnt.net> Cc: freebsd-ppc@freebsd.org Subject: Re: Panic, 'giant not owned' kern_mutex.c:299 Message-ID: <p0621020bbea6c8ec4db8@[128.113.24.47]> In-Reply-To: <20050510193922.GA34057@ns1.xcllnt.net> References: <p06210208bea6bb371756@[128.113.24.47]> <20050510193922.GA34057@ns1.xcllnt.net>
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At 12:39 PM -0700 5/10/05, Marcel Moolenaar wrote: >On Tue, May 10, 2005 at 03:30:32PM -0400, Garance A Drosihn wrote: >> I just rebuilt my ppc system last night, and when I try to boot up >> off the new kernel I get: >> >> Trying to mount root from ufs:/dev/ad0s5 >> panic: mutex Giant not owned at /usr/src/sys/kern/kern_mutex.c:299 >> KDB: enter: panic >> [thread pid 1 tid 100006 ] >> Stopped at 0x259ae4: lwz r11, r1, 0x0 >> db> >> >> Do you need more info than that? > >This is the exact same thing I ran into on ia64. The problem appears >to be the default setting of the debug.mpsafevm tunable. If you set >it to 1 in the loader the problem is resolved, although you might >run into other issues. grehan@ is onto it, so you can also wait for >his commit and/or suggestion. Thanks for the quick reply. I think I'll wait for an official fix, just to be on the safe side. Seems a little odd that this 'mpsafe' issues would be popping up on a single-CPU system... -- Garance Alistair Drosehn = gad@gilead.netel.rpi.edu Senior Systems Programmer or gad@freebsd.org Rensselaer Polytechnic Institute or drosih@rpi.edu
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