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Date:      Wed, 23 Oct 2013 08:36:19 -0400
From:      John Baldwin <jhb@freebsd.org>
To:        freebsd-ia64@freebsd.org, mexas@bris.ac.uk
Cc:        davide@freebsd.org, Konstantin Belousov <kostikbel@gmail.com>, freebsd-current@freebsd.org
Subject:   Re: deadlkres: possible deadlock detected for 0xe000000012aed200, blocked for 900014 ticks
Message-ID:  <201310230836.19524.jhb@freebsd.org>
In-Reply-To: <201310230927.r9N9RAw5079054@mech-cluster241.men.bris.ac.uk>
References:  <201310230927.r9N9RAw5079054@mech-cluster241.men.bris.ac.uk>

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On Wednesday, October 23, 2013 5:27:10 am Anton Shterenlikht wrote:
> This time alllocks has lots of info.
> 
> I updated the PR:
> http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/183007

Hmm, unfortunately it seems like all the stack traces did not work.  There are 
lots of threads blocked on VM-related locks, and CPU 0 is running vm_daemon.
Probably would need a stack trace of that thread to see what it is doing (this
is part of why a real crash dump would be far better than a textdump as you 
can get more info after the crash instead of having to know in advance 
everything you want).  I saw earlier you had a thread to get textdumps to 
work.  Did you ever have regular crashdumps working?

-- 
John Baldwin



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