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From: Robert Richter <robert.richter@amd.com>
To: Steven Rostedt <srostedt@redhat.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>,
	linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
	Stephane Eranian <eranian@googlemail.com>
Subject: Re: [PATCH] Fix oprofile regression: select RING_BUFFER_ALLOW_SWAP
Date: Wed, 16 Sep 2009 22:54:52 +0200	[thread overview]
Message-ID: <20090916205452.GL24322@erda.amd.com> (raw)
In-Reply-To: <1253131890.2964.168.camel@localhost.localdomain>

On 16.09.09 16:11:30, Steven Rostedt wrote:
> On Wed, 2009-09-16 at 21:56 +0200, Christian Borntraeger wrote:
> > commit 85bac32c4a52c592b857f2c360cc5ec93a097d70                                                                                                                             
> >     ring-buffer: only enable ring_buffer_swap_cpu when needed
> > broke oprofile (at least on s390, but likely on all platforms).
> > 
> > this patch lets oprofile select RING_BUFER_ALLOW_SWAP to make 
> > ring_buffer_swap_cpu usable for oprofile.
> 
> Thanks, I'll apply this for the 32 queue.

Thanks Christian,

I was just debugging it for x86 too and narrowed it to the
tracing-core merge already.

-Robert

-- 
Advanced Micro Devices, Inc.
Operating System Research Center
email: robert.richter@amd.com


  reply	other threads:[~2009-09-16 20:56 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-16 19:56 [PATCH] Fix oprofile regression: select RING_BUFFER_ALLOW_SWAP Christian Borntraeger
2009-09-16 20:11 ` Steven Rostedt
2009-09-16 20:54   ` Robert Richter [this message]
2009-09-17 20:16 ` [tip:tracing/core] oprofile: fix " tip-bot for Christian Borntraeger

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