Hi,

There is known bug until r3 ARM version. But it is more like losing 20 to 30% of PMU interrupts, not all.

http://lists.linaro.org/pipermail/linaro-dev/2011-September/007598.html (read begin and end)

http://lists.linaro.org/pipermail/linaro-dev/2011-September/007587.html

http://lists.linaro.org/pipermail/linaro-dev/2011-September/007662.html

Regards

Fred

OMAP Platform Business Unit - OMAP System Engineering - Platform Enablement - System Multimedia

Texas Instruments France SA, 821 Avenue Jack Kilby, 06270 Villeneuve Loubet. 036 420 040 R.C.S Antibes. Capital de EUR 753.920

From: linaro-kernel-bounces@lists.linaro.org [mailto:linaro-kernel-bounces@lists.linaro.org] On Behalf Of Kyler Zhang
Sent: Monday, March 05, 2012 2:29 PM
To: linaro-kernel@lists.linaro.org
Subject: What is bug of OMAP4460 that make oprofile can not run normally

Hi all,

We are know that the OMAP4460's PMU is buggy, which loses PMU interrupt always.

But I do not know what the real bug is, the HW bug or Software bug?

What the bug is?

Could some one give a point?

Kyler Zhang