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Message-ID: <49AC225B.9080105@ct.jp.nec.com>
Date: Mon, 02 Mar 2009 10:15:55 -0800
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
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To: Ingo Molnar <mingo@elte.hu>, Mike Galbraith <efault@gmx.de>,
       Jaswinder Singh Rajput <jaswinder@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: x86-tip: xine bustage bisection fingers commit	97286a2b64725aac2d584ddd1f94871f9991d5a1
References: <1235984665.6195.12.camel@marge.simson.net> <20090302093319.GB20897@elte.hu>
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Ingo Molnar wrote:
> * Mike Galbraith <efault@gmx.de> wrote:
> 
>> Greetings and Salutations,
>>
>> $subject, box is Q6600 X86_64 running v2.6.29-rc6-2261-g0fdaeee
>>
>> marge:/root # xine
>> This is xine (X11 gui) - a free video player v0.99.6cvs.
>> (c) 2000-2007 The xine Team.
>> Floating point exception
>>
>> [pid  6230] 06:59:50.524473 set_robust_list(0x40e239f0, 0x18 <unfinished ...>
>> [pid  6230] 06:59:50.524553 <... set_robust_list resumed> ) = 0 <0.000027>
>> [pid  6230] 06:59:50.524648 select(0, NULL, NULL, NULL, {0, 500000} <unfinished ...>
>> [pid  6230] 06:59:50.763988 <... select resumed> ) = ? ERESTARTNOHAND (To be restarted) <0.239321>
>> [pid  6230] 06:59:50.764012 --- SIGRT_1 (Unknown signal 33) @ 0 (0) ---
>> [pid  6230] 06:59:50.764074 setuid(0)   = 0 <0.000014>
>> [pid  6230] 06:59:50.764151 futex(0x7fff2745e7a0, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>
>> [pid  6230] 06:59:50.764213 <... futex resumed> ) = 0 <0.000051>
>> [pid  6230] 06:59:50.764255 futex(0x40e23d2c, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>
>> [pid  6230] 06:59:50.764298 <... futex resumed> ) = 0 <0.000028>
>> [pid  6230] 06:59:50.764346 rt_sigreturn(0x40e23d2c <unfinished ...>
>> [pid  6230] 06:59:50.778497 <... rt_sigreturn resumed> ) = 0 <0.014136>
>> [pid  6230] 06:59:50.778524 --- SIGSEGV (Segmentation fault) @ 0 (0) ---
>>
>> [ 1303.345419] xine[6230] bad frame in rt_sigreturn frame:0000000040e22c28 ip:7f051ca28622 sp:40e23070 orax:ffffffffffffffff in libc-2.8.so[7f051c95c000+14f000]
>> 
>> 97286a2b64725aac2d584ddd1f94871f9991d5a1 is first bad commit
>> commit 97286a2b64725aac2d584ddd1f94871f9991d5a1
>> Author: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
>> Date:   Fri Feb 27 10:28:48 2009 -0800
>>
>>     x86: signal: intrroduce get_sigframe() and replace get_sigstack()
>>     
>>     Impact: cleanup

Thanks for reporting and bisecting.
Apparently I did something wrong in this cleanup series.

> 
> ok, that's the same area Jaswinder Singh Rajput bisected a 
> breakage back to. I've excluded these commits from tip:master 
> for now and pushed out an updated tip:master tree.
> 
> Hiroshi-san, mind having a look at this problem?

OK, I'll look at this.

Thanks,
Hiroshi

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