From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mailhub1.si.c-s.fr (pegase1.c-s.fr [93.17.236.30]) by ozlabs.org (Postfix) with ESMTP id 4609D2C00AB for ; Wed, 20 Nov 2013 20:37:23 +1100 (EST) Message-ID: <528C82D1.4090803@c-s.fr> Date: Wed, 20 Nov 2013 10:37:21 +0100 From: leroy christophe MIME-Version: 1.0 To: Scott Wood Subject: BUG: Patch "Convert some mftb/mftbu into mfspr" breaks MPC885 Content-Type: multipart/alternative; boundary="------------040601090207020000060607" Cc: LinuxPPC-dev , linux-kernel@vger.kernel.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This is a multi-part message in MIME format. --------------040601090207020000060607 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Scott, The patch "Convert some mftb/mftbu into mfspr" (beb2dc0a7a84be003ce54e98b95d65cc66e6e536 ) breaks startup on MPC885. The CPU traps (SoftwareEmulation trap) at sched_clock() when trying to read TBU with mfspr. Reverting the patch solves the issue. What's the prefered way to fix this ? Christophe --------------040601090207020000060607 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Scott,

The patch "Convert some mftb/mftbu into mfspr" (beb2dc0a7a84be003ce54e98b95d65cc66e6e536) breaks startup on MPC885.

The CPU traps (SoftwareEmulation trap) at sched_clock() when trying to read TBU with mfspr.

Reverting the patch solves the issue.

What's the prefered way to fix this ?

Christophe
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