Re: zfs: Fatal trap 12: page fault while in kernel mode

[ Available lists | Index of freebsd-current | Month of Aug 2009 | Week of 4 Aug 2009 | Raw email | View thread | Wrap long lines | Reply | Tag ]
From
Pawel Jakub Dawidek <pjd@FreeBSD.org>
Date
4 Aug 2009 09:49:31
Subject
Re: zfs: Fatal trap 12: page fault while in kernel mode
Message-ID
20090804094950.GD4479@garage.freebsd.pl


[ Hide this part ]
On Tue, Aug 04, 2009 at 09:53:29AM +0200, Juergen Unger wrote:
> Hi Pawel,
>
> On Tue, Aug 04, 2009 at 09:34:16AM +0200, Pawel Jakub Dawidek wrote:
> [...]
> > > > If you can break into debugger and send me 'show alltrace' for starters.
> > >
> > > hmm, maybe you did not get my last mail.
> > > I put the log of this on <http://www.jpru.de/private/testbox.log>
> >
> > I did get it, sorry for the delay, I'm quite busy with other stuff. I
> > need to setup machine for HEAD testing, as my current test box is
> > running perforce version.
> >
> > I'd also need 'show lock 0x87aac290' from this machine if its not too
> > late.
>
> 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

--
Pawel Jakub Dawidek http://www.wheel.pl
pjd@FreeBSD.org http://www.FreeBSD.org
FreeBSD committer Am I Evil? Yes, I Am!


[ Show this part (application/pgp-signature) ]

Elapsed time: 0.197 seconds