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From: Tim Chen <tim.c.chen@linux.intel.com>
To: Valdis.Kletnieks@vt.edu
Cc: Jiri Slaby <jirislaby@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	ML netdev <netdev@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [next] unix stream crashes
Date: Thu, 01 Sep 2011 18:40:45 -0700	[thread overview]
Message-ID: <1314927645.2576.2939.camel@schen9-DESK> (raw)
In-Reply-To: <3179.1314924559@turing-police.cc.vt.edu>

On Thu, 2011-09-01 at 20:49 -0400, Valdis.Kletnieks@vt.edu wrote:
> On Thu, 01 Sep 2011 22:46:32 +0200, Jiri Slaby said:
> > Hi,
> > 
> > my box 100% crashes when booting. It's both in unix socket recv and send 
> > paths. I've reverted 0856a30409 (Scm: Remove unnecessary pid & 
> > credential references in Unix socket's send and receive path) and it 
> > seems to help.
> > 
> > The oops:
> > http://www.fi.muni.cz/~xslaby/sklad/panics/af_unix_crash.png
> 
> I was seeing a 100% repeatable crash with the X server starting as well, but
> wasn't able to get a traceback because my X server was doing the modeset before
> it crashed (so all I got was a black screen) and netconsole is busticated for
> me.  I can confirm that reverting that one commit allows my box to boot and get
> X up and running as well.
> 

Yes, Jiri's log does indicate that something went wrong when releasing
the skb, most likely due to changes in the pid and credentials ref
count.  Unfortunately, I cannot duplicate the problem on my system.  Any
info on your system to help me debug will be appreciated.  I'll try to
take another look at the patch tomorrow.

Tim


  reply	other threads:[~2011-09-02  1:39 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-01 20:46 [next] unix stream crashes Jiri Slaby
2011-09-02  0:49 ` Valdis.Kletnieks
2011-09-02  1:40   ` Tim Chen [this message]
2011-09-02 16:12     ` Valdis.Kletnieks
2011-09-02 23:55       ` Tim Chen
2011-09-03  4:32         ` Sedat Dilek
2011-09-03  5:35         ` Valdis.Kletnieks
2011-09-03  5:54           ` Sedat Dilek
2011-09-03  6:23             ` Jiri Slaby
2011-09-03 12:30               ` Yan, Zheng 
2011-09-03 13:47                 ` Sedat Dilek
2011-09-03 14:46                   ` Sedat Dilek
2011-09-03 15:38                     ` Yan, Zheng 
2011-09-04 14:43                 ` Valdis.Kletnieks

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