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Date:      Mon, 15 Jul 2013 03:35:49 -0700
From:      Yuri <yuri@rawbw.com>
To:        freebsd-hackers@freebsd.org
Subject:   Re: Kernel crashes after sleep: how to debug?
Message-ID:  <51E3D085.2050504@rawbw.com>
In-Reply-To: <51E3A334.8020203@rawbw.com>
References:  <51E3A334.8020203@rawbw.com>

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On 07/15/2013 00:22, Yuri wrote:
> How to find the cause of the crash?

I added WITNESS and related options and next crash produced such messages:
Jul 15 03:25:53 satellite kernel: panic: Bad link elm 0xfffffe00b780d000 
next->prev != elm
Jul 15 03:25:53 satellite kernel: cpuid = 1
Jul 15 03:25:53 satellite kernel: KDB: stack backtrace:
Jul 15 03:25:53 satellite kernel: #0 0xffffffff8094b846 at 
kdb_backtrace+0x66
Jul 15 03:25:53 satellite kernel: #1 0xffffffff809129c8 at panic+0x1d8
Jul 15 03:25:53 satellite kernel: #2 0xffffffff80b83994 at 
vm_page_requeue+0xe4
Jul 15 03:25:53 satellite kernel: #3 0xffffffff80b896c4 at vm_pageout+0xb04
Jul 15 03:25:53 satellite kernel: #4 0xffffffff808e3f65 at fork_exit+0x135
Jul 15 03:25:53 satellite kernel: #5 0xffffffff80cd72de at 
fork_trampoline+0xe


Process was pagedaemon, like before.

Yuri



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