linux-kernel - Re: [Bug #14012] latest git fried my x86

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Date:	Thu, 27 Aug 2009 11:01:46 -0700
From:	"Justin P. Mattock" <justinmattock@...il.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...e.hu>
Subject: Re: [Bug #14012] latest git fried my x86_64 imac

Rafael J. Wysocki wrote:
> On Wednesday 26 August 2009, Justin P. Mattock wrote:
>    
>> Rafael J. Wysocki wrote:
>>      
>>> This message has been generated automatically as a part of a report
>>> of recent regressions.
>>>
>>> The following bug entry is on the current list of known regressions
>>> from 2.6.30.  Please verify if it still should be listed and let me know
>>> (either way).
>>>
>>>
>>> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=14012
>>> Subject		: latest git fried my x86_64 imac
>>> Submitter	: Justin P. Mattock<justinmattock@...il.com>
>>> Date		: 2009-08-13 07:20 (13 days old)
>>> References	: http://marc.info/?l=linux-kernel&m=125014080427090&w=4
>>>
>>>
>>>
>>>
>>>        
>> if I revert this commit:
>> af6af30c0fcd77e621638e53ef8b176bca8bd3b4
>> I can get a normal bootup.
>>      
>
> Hm, that's
>
> commit af6af30c0fcd77e621638e53ef8b176bca8bd3b4
> Author: Peter Zijlstra<peterz@...radead.org>
> Date:   Wed Aug 5 20:41:04 2009 +0200
>
>      ftrace: Fix perf-tracepoint OOPS
>
> I wonder what happens if you compile out ftrace?
>
>    
>> As for this  bug, it seems I'm the only
>> hitting this. The system is a fresh LFS build
>> x86_64.
>> In regards to keeping this open
>> not sure, I don't have a problem with closing this
>> and taking the blame as something I did during my build
>> of the system, then if this becomes more frequent
>> then open a new bug.
>>      
>
> OK, I'll close it for now.
>
> Thanks,
> Rafael
> --
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>    
o.k. I tried disabling all of ftrace in the kernel,
unfortunately the only one left
is HAVE_FTRACE_SYSCALLS
which seems to be selected by x86.
seems the system still sticks
without reverting perf-tracepoint oops.

Justin P. Mattock

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