netdev - Re: [BUG] af_unix race in close?

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Date:	Wed, 23 Sep 2009 22:56:11 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	Jike Song <albcamus@...il.com>
Subject: Re: [BUG] af_unix race in close?

On Thu, 24 Sep 2009 06:35:51 +0200
Eric Dumazet <eric.dumazet@...il.com> wrote:

> inted (2.6.31-0.125.4.2.rc5.git2.fc12.i686 #1) AOA110
> > EIP: 0060:[] EFLAGS: 00010202 CPU: 0
> > EIP is at unix_write_space+0x45/0x87
> > EAX: 6b6b6b6b EBX: ec988780 ECX: 00000000 EDX: 6b6b6b8f
> > ESI: ec988950 EDI: ffffff20 EBP: ec941e28 ESP: ec941e1c
> >  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
> > Process metacity (pid: 6809, ti=ec940000 task=e63095c0 task.ti=ec940000)
> > Stack:
> >  37dc7803 ec988780 000000e1 ec941e40 c0772142 37dc7803 dcc1c900 dcc1c900  
> > <0> c07f6a02 ec941e50 c0775766 37dc7803 dcc1c900 ec941e60 c07754ae 37dc7803
> > <0> dcc1c900 ec941e78 c07755db 37dc7803 ec98b0c0 dcc1c900 00000000 ec941ea0  
> > Call Trace:
> >  [] ? sock_wfree+0x44/0x68
> >  [] ? unix_release_sock+0x182/0x1e0
> >  [] ? skb_release_head_state+0x6c/0xcb
> >  [] ? __kfree_skb+0x20/0x94
> >  [] ? kfree_skb+0x68/0x7f
> >  [] ? unix_release_sock+0x182/0x1e0
> >  [] ? unix_release+0x2f/0x42
> >  [] ? sock_release+0x29/0x7f
> >  [] ? sock_close+0x30/0x45
> >  [] ? __fput+0x101/0x1a2

Good thanks. It should probably go up to stable as well.
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