linux-kernel - Re: oprofile BUG() in current kernel.

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Date:	Mon, 12 May 2008 11:38:03 -0500
From:	Chris J Arges <arges@...ux.vnet.ibm.com>
To:	Maynard Johnson <maynardj@...ibm.com>
Cc:	Gianni Tedesco <gxt@...nott.ac.uk>,
	Vegard Nossum <vegard.nossum@...il.com>,
	linux-kernel@...r.kernel.org, oprofile-list@...ts.sourceforge.net,
	Mike Travis <travis@....com>
Subject: Re: oprofile BUG() in current kernel.

Let me know if this change is going to be reverted, as I have a patch
ready to support cpu hotplug for oprofile based on code post
DEFINE_PER_CPU patch. 
Thanks,

On Mon, 2008-05-12 at 09:11 -0500, Maynard Johnson wrote:
> Gianni Tedesco wrote:
> > On Mon, 2008-05-12 at 14:19 +0200, Vegard Nossum wrote:
> >   
> >> Hi,
> >>
> >> On Mon, May 12, 2008 at 2:02 PM, Gianni Tedesco <gxt@...nott.ac.uk> wrote:
> >>     
> >>> This is from Linus' git tree, pulled this morning. To reproduce simply
> >>>  opcontrol --start
> >>>
> >>>  oprofile: using NMI interrupt.
> >>>  BUG: unable to handle kernel paging request at eff86d58
> >>>  IP: [<eeb9d508>] :oprofile:alloc_cpu_buffers+0x42/0xd6
> >>>
> >>>       
> >> This looks similar to:
> >>
> >> http://www.uwsg.iu.edu/hypermail/linux/kernel/0805.0/2845.html
> >>     
> >
> > Yes, remarkably similar ;)
> >
> >   
> >> Does reverting 608dfddd845da5ab6accef70154c8910529699f7 fix it for you too?
> >>     
> Has this fix been officially reverted?
> >
> > It does indeed. Thanks for the pointer.
> >
> >
> > -------------------------------------------------------------------------
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> > http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
> > _______________________________________________
> > oprofile-list mailing list
> > oprofile-list@...ts.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/oprofile-list
> >   
> 
> 
> 
> -------------------------------------------------------------------------
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> Don't miss this year's exciting event. There's still time to save $100. 
> Use priority code J8TL2D2. 
> http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone
> _______________________________________________
> oprofile-list mailing list
> oprofile-list@...ts.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/oprofile-list
-- 
Chris J Arges
Software Engineer
IBM Linux Technology Center
Austin, TX
arges@...ux.vnet.ibm.com

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