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

[Pawel Jakub Dawidek]

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 at FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!
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