Date: Tue, 4 Aug 2009 11:56:48 +0200 From: Juergen Unger <lists@jpru.de> To: Pawel Jakub Dawidek <pjd@FreeBSD.org> Cc: freebsd-fs@FreeBSD.org, "O. Hartmann" <ohartman@mail.zedat.fu-berlin.de>, freebsd-current@FreeBSD.org, Andriy Gapon <avg@icyb.net.ua> Subject: Re: zfs: Fatal trap 12: page fault while in kernel mode Message-ID: <20090804095648.GL5813@jpru.ffm.jpru.de> In-Reply-To: <20090804094950.GD4479@garage.freebsd.pl> References: <20090727072503.GA52309@jpru.ffm.jpru.de> <4A6E06E6.9030300@mail.zedat.fu-berlin.de> <4A6EC9E2.5070200@icyb.net.ua> <20090729084723.GD1586@garage.freebsd.pl> <20090802092714.GA5813@jpru.ffm.jpru.de> <20090802093016.GB3071@garage.freebsd.pl> <20090803203226.GE5813@jpru.ffm.jpru.de> <20090804073416.GA4479@garage.freebsd.pl> <20090804075329.GI5813@jpru.ffm.jpru.de> <20090804094950.GD4479@garage.freebsd.pl>
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On Tue, Aug 04, 2009 at 11:49:50AM +0200, Pawel Jakub Dawidek wrote: > > testbox# sysctl debug.kdb.enter=1 > > KDB: enter: sysctl debug.kdb.enter > > [thread pid 11635 tid 100472 ] > > Stopped at kdb_enter+0x3a: movl $0,kdb_why > > db> show lock 0x87aac290 > > class: sx > > name: dp->dp_config_rwlock > > state: XLOCK: 0x879e8480 (tid 100130, pid 172, "txg_thread_enter") > > waiters: shared > > db> > > Could you also try something like the following from DDB: > > x/bx 0x879ad8a0,52 db> x/bx 0x879ad8a0,52 0x879ad8a0: 82 1a 4b 87 0 0 71 2 0 0 0 0 0 0 0 0 0x879ad8b0: 1 0 0 0 91 1a 4b 87 4 0 0 0 40 92 cb 87 0x879ad8c0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0x879ad8d0: 0 0 0 0 9 1f 4b 87 0 0 71 2 0 0 0 0 0x879ad8e0: 0 0 0 0 40 92 cb 87 e8 0 0 0 c8 0 0 0 0x879ad8f0: a8 bb db> -Juergen- -- ENOSIG
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