linux-kernel - Re: mmotm 2009-08-24-16-24 uploaded

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Message-ID: <4A96250C.3060802@ct.jp.nec.com>
Date:	Thu, 27 Aug 2009 15:17:48 +0900
From:	Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
CC:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	oleg@...hat.com
Subject: Re: mmotm 2009-08-24-16-24 uploaded

KAMEZAWA Hiroyuki wrote:
> In the newest mmotom, my S14nfslock hangs up. (x86-64/Fedora10)
> 
> On Mon, 24 Aug 2009 16:28:30 -0700
> akpm@...ux-foundation.org wrote:
> 
>> ptrace-__ptrace_detach-do-__wake_up_parent-if-we-reap-the-tracee.patch
>> do_wait-wakeup-optimization-shift-security_task_wait-from-eligible_child-to-wait_consider_task.patch
> 
> bisected. following 2 patches for filtering SIGCHLD cause hang (for my environ).
> 
>> do_wait-wakeup-optimization-change-__wake_up_parent-to-use-filtered-wakeup.patch
>> do_wait-wakeup-optimization-change-__wake_up_parent-to-use-filtered-wakeup-selinux_bprm_committed_creds-use-__wake_up_parent.patch
> 
> And, Hmm, I'm not bisected yet but..
> ==
> [root@...extal kamezawa]# ps -ef
> UID        PID  PPID  C STIME TTY          TIME CMD
> 
> 
> Signal 11 (SEGV) caught by ps (procps version 3.2.7).
> Please send bug reports to <feedback@...ts.sf.net> or <albert@...rs.sf.net>
> ==
> 
> 'ps -ef' gets SEGV. still digging.

This patch will fix the issue.
http://lkml.org/lkml/2009/8/25/47

Thanks,
Hiroshi
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