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

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Message-Id: <200908272145.01901.rjw@sisk.pl>
Date:	Thu, 27 Aug 2009 21:45:01 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	"Justin P. Mattock" <justinmattock@...il.com>
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

On Thursday 27 August 2009, Justin P. Mattock wrote:
> 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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> > Please read the FAQ at  http://www.tux.org/lkml/
> >
> >    
> 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.

That's kind of strange.  Can you attach the .config, please?

Rafael
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