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Date:      Fri, 27 May 2005 05:12:17 +1000
From:      Peter Jeremy <PeterJeremy@optushome.com.au>
To:        Ted Faber <faber@isi.edu>
Cc:        freebsd-current@freebsd.org
Subject:   Re: hard deadlock(?) on -current; some debugging info, need help
Message-ID:  <20050526191217.GA17267@cirb503493.alcatel.com.au>
In-Reply-To: <20050526160846.GA6851@pun.isi.edu>
References:  <20050526001806.GA1008@pun.isi.edu> <20050526080928.GE12640@cirb503493.alcatel.com.au> <20050526160846.GA6851@pun.isi.edu>

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On Thu, 2005-May-26 09:08:46 -0700, Ted Faber wrote:
>On Thu, May 26, 2005 at 06:09:28PM +1000, Peter Jeremy wrote:
>> Nothing is waiting on physical I/O, but there are lots of locked vnodes.
>> I notice there's a sh(? - pid 10715) blocked on nfsreq.  Can you reproduce
>> the problem without the NFS mounted filesystems?
>
>I have a laptop on the same network that uses NFS much less aggressively
>and it has never locked up.  I understand that's anecdotal.  It's pretty
>hard to reconfigure the desktop into a position where I get work done
>and don't use NFS here.

OK.  I have no reason to believe the problem is in NFS, it was just a
"reduce the number of possibilities" type suggestion.

>I've let it sit a few minutes.  I'll try it again next lockup, just in
>case.  I've just typed "panic" from the debugger.  If there's a better
>way, please let me know.

You could try "call doadump".

-- 
Peter Jeremy



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