From: Will Deacon <will.deacon@arm.com>
To: "Måns Rullgård" <mans@mansr.com>
Cc: "Cousson, Benoit" <b-cousson@ti.com>,
Ming Lei <ming.lei@canonical.com>,
"oprofile-list@lists.sourceforge.net"
<oprofile-list@lists.sourceforge.net>,
"eranian@gmail.com" <eranian@gmail.com>,
"linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: oprofile and ARM A9 hardware counter
Date: Fri, 27 Jan 2012 13:28:26 +0000 [thread overview]
Message-ID: <20120127132826.GD2347@mudshark.cambridge.arm.com> (raw)
In-Reply-To: <yw1x1uqlnw1o.fsf@unicorn.mansr.com>
Mans,
On Fri, Jan 27, 2012 at 12:56:35PM +0000, Måns Rullgård wrote:
> Will Deacon <will.deacon@arm.com> writes:
> > Did this lead anywhere in the end? It seems as though Ming Lei has a working
> > setup but Stephane is unable to replicate it, despite applying the necessary
> > patches and trying an updated bootloader.
>
> With the patches listed above plus the one in [1], I get PMU interrupts.
> However, unless I restrict the profiled process to one CPU
> (taskset 1 perf record ...), I get a panic in armpmu_event_update() with
> the 'event' argument being null when called from armv7pmu_handle_irq().
>
> [1] http://article.gmane.org/gmane.linux.ports.arm.omap/69696
Great, thanks for trying this out. Which version of the kernel were you
using? I fixed a bunch of NULL pointer derefs. during the 3.2 window, but if
you were using an -rc kernel you have have hit one of them.
Will
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next prev parent reply other threads:[~2012-01-27 13:28 UTC|newest]
Thread overview: 111+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAAO=S0+L2Q1YZC-pfm2Lz8jPooTeHYOMaZbtRgHYFoL_m7rvhA@mail.gmail.com>
[not found] ` <4F0B182D.7060507@us.ibm.com>
2012-01-09 22:49 ` oprofile and ARM A9 hardware counter Will Deacon
2012-01-09 23:30 ` Ming Lei
2012-01-10 0:46 ` stephane eranian
2012-01-18 4:18 ` Ming Lei
2012-01-18 9:33 ` Ming Lei
2012-01-18 11:39 ` Shilimkar, Santosh
2012-01-18 12:24 ` Ming Lei
2012-01-18 12:33 ` Shilimkar, Santosh
2012-04-03 9:25 ` Will Deacon
2012-04-03 9:42 ` Shilimkar, Santosh
2012-04-03 9:47 ` Will Deacon
2012-04-03 10:01 ` Shilimkar, Santosh
2012-04-03 12:34 ` Will Deacon
2012-04-03 12:41 ` Shilimkar, Santosh
2012-04-03 14:27 ` Kevin Hilman
2012-04-03 16:07 ` Will Deacon
2012-04-03 23:14 ` Kevin Hilman
2012-04-03 23:29 ` Paul Walmsley
2012-04-04 3:42 ` Ming Lei
2012-04-04 11:15 ` Will Deacon
2012-04-26 18:07 ` Will Deacon
2012-04-30 22:25 ` Kevin Hilman
2012-05-07 17:27 ` Ming Lei
2012-05-04 22:17 ` Jon Hunter
2012-05-07 17:15 ` Kevin Hilman
2012-05-07 19:53 ` Jon Hunter
2012-05-07 23:28 ` Kevin Hilman
2012-05-08 11:01 ` Cousson, Benoit
2012-05-08 11:23 ` Jean Pihet
2012-05-08 12:37 ` Cousson, Benoit
2012-05-08 13:18 ` Jean Pihet
2012-05-08 14:00 ` Kevin Hilman
2012-05-08 14:03 ` Cousson, Benoit
2012-05-08 16:18 ` Kevin Hilman
2012-05-08 19:51 ` Jon Hunter
2012-05-08 21:28 ` Kevin Hilman
2012-05-08 22:20 ` Jon Hunter
2012-05-08 22:12 ` Ming Lei
2012-05-08 17:31 ` Jon Hunter
2012-05-08 21:22 ` Kevin Hilman
2012-05-08 23:59 ` Jon Hunter
2012-05-09 10:58 ` Cousson, Benoit
2012-05-09 18:04 ` Jon Hunter
2012-05-09 19:28 ` Jon Hunter
2012-05-09 21:45 ` Jon Hunter
2012-05-10 8:44 ` Will Deacon
2012-05-10 9:12 ` stephane eranian
2012-05-10 18:55 ` Jon Hunter
2012-05-11 12:25 ` Will Deacon
2012-05-11 13:47 ` Jon Hunter
2012-05-11 13:49 ` Will Deacon
2012-05-11 14:52 ` Jon Hunter
2012-05-11 15:02 ` Will Deacon
2012-05-11 16:31 ` Jon Hunter
2012-05-11 16:38 ` Will Deacon
2012-05-11 23:51 ` Jon Hunter
2012-05-15 13:52 ` Will Deacon
2012-05-10 14:12 ` Kevin Hilman
2012-05-10 19:05 ` Jon Hunter
2012-05-10 6:59 ` Santosh Shilimkar
2012-05-08 21:50 ` Paul Walmsley
2012-04-04 0:00 ` Paul Walmsley
2012-04-04 11:07 ` Will Deacon
2012-01-18 9:54 ` stephane eranian
2012-01-18 10:07 ` Ming Lei
2012-01-18 21:58 ` stephane eranian
2012-01-19 1:21 ` Ming Lei
2012-01-19 11:34 ` stephane eranian
2012-01-19 12:45 ` Ming Lei
2012-01-19 12:51 ` stephane eranian
2012-01-19 12:55 ` stephane eranian
2012-01-19 13:14 ` Ming Lei
2012-01-19 13:26 ` Ming Lei
2012-01-19 13:32 ` stephane eranian
2012-01-19 13:51 ` Ming Lei
2012-01-19 17:07 ` stephane eranian
2012-01-20 13:47 ` stephane eranian
2012-01-21 3:25 ` Ming Lei
2012-01-21 9:16 ` stephane eranian
2012-01-27 12:13 ` Will Deacon
2012-01-27 12:45 ` stephane eranian
2012-01-27 12:56 ` Måns Rullgård
2012-01-27 13:28 ` Will Deacon [this message]
2012-01-27 13:32 ` stephane eranian
2012-01-27 13:47 ` Måns Rullgård
2012-01-27 13:56 ` Will Deacon
2012-01-27 14:05 ` Måns Rullgård
2012-01-27 14:09 ` Ming Lei
2012-01-27 15:45 ` stephane eranian
2012-01-27 15:54 ` Will Deacon
2012-01-27 15:57 ` stephane eranian
2012-01-27 16:59 ` Will Deacon
2012-01-27 17:03 ` stephane eranian
2012-01-27 17:10 ` Will Deacon
2012-01-27 17:16 ` stephane eranian
2012-01-29 17:36 ` stephane eranian
2012-01-30 9:40 ` Ming Lei
2012-01-30 10:24 ` stephane eranian
2012-01-30 13:43 ` stephane eranian
2012-01-30 14:49 ` Ming Lei
2012-01-30 16:02 ` stephane eranian
2012-01-30 16:08 ` Måns Rullgård
2012-01-30 17:15 ` stephane eranian
2012-01-30 17:24 ` Will Deacon
2012-01-30 17:45 ` stephane eranian
2012-01-30 19:14 ` Will Deacon
2012-01-30 20:45 ` stephane eranian
2012-03-07 2:49 ` Ming Lei
2012-03-07 9:48 ` Will Deacon
2012-01-27 14:06 ` Ming Lei
2012-01-18 10:18 ` Russell King - ARM Linux
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