linux-kernel - Re: ip_rcv_finish() NULL pointer and possibly related Oopses

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Message-ID: <1441282243.8932.219.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Thu, 03 Sep 2015 05:10:43 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Shaun Crampton <Shaun.Crampton@...aswitch.com>
Cc:	Daniel Borkmann <daniel@...earbox.net>,
	Michael Marineau <michael.marineau@...eos.com>,
	Chuck Ebbert <cebbert.lkml@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Peter White <Peter.White@...aswitch.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: ip_rcv_finish() NULL pointer and possibly related Oopses

On Thu, 2015-09-03 at 10:09 +0000, Shaun Crampton wrote:
> >...
> >> Is there anything I can do on a running system to help figure this out?
> >> Some sort of kernel equivalent to pmap to find out what module or device
> >> owns that chunk of memory?
> >
> >Hmm, perhaps /proc/kallsyms could point to something. 0xffffffffa0087d81
> >and 0xffffffffa008772b could be from the same module, if any.
> 
> Any good: https://transfer.sh/szGRE/kallsyms ?
> 

seems to be cryptd module.

Have you tried to run an pristine upstream kernel ?


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