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Date:      Thu, 18 Jul 2013 16:52:48 -0400
From:      John Baldwin <jhb@freebsd.org>
To:        Yuri <yuri@rawbw.com>
Cc:        Alan Cox <alc@freebsd.org>, freebsd-hackers@freebsd.org
Subject:   Re: Kernel crashes after sleep: how to debug?
Message-ID:  <201307181652.48757.jhb@freebsd.org>
In-Reply-To: <51E8487E.40800@rawbw.com>
References:  <51E3A334.8020203@rawbw.com> <201307181442.35401.jhb@freebsd.org> <51E8487E.40800@rawbw.com>

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On Thursday, July 18, 2013 3:56:46 pm Yuri wrote:
> On 07/18/2013 11:42, John Baldwin wrote:
> > Hmm, so this seems to indicate you have a page on the active queue that
> > doesn't have an associated VM object.  Can you maybe 'p *m'?  Maybe some
> > temporary page is allocated during suspend but isn't freed appropriately?
> 
> Unfortunately, I get this:
> (kgdb) p *m
> No symbol "m" in current context.
> 
> even though kernel was built with "makeoptions     DEBUG=-g", same for 
> other symbols there.
> 
> Is there a way to identify when and by whom the page has been allocated?

Are you in frame 8?

-- 
John Baldwin



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