linux-kernel - Linux 3.8.rc3 ATI radeon driver broken

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Message-ID: <CAKocOOMytcbVbcgWPXA8s6+Mm6jSkwB1XqViSN12s53Xj6Bk0Q@mail.gmail.com>
Date:	Wed, 16 Jan 2013 15:07:44 -0700
From:	Shuah Khan <shuahkhan@...il.com>
To:	LKML <linux-kernel@...r.kernel.org>
Subject: Linux 3.8.rc3 ATI radeon driver broken

I am seeing dmesg filling up with the DMAR faults on

01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI RV620 [M
obility Radeon HD 3400 Series] (prog-if 00 [VGA controller])

 [   21.436041] DMAR:[fault reason 06] PTE Read access is not set
[   21.436071] dmar: DRHD: handling fault status reg 3
[   21.436075] dmar: DMAR:[DMA Read] Request device [01:00.0] fault
addr 80004000

This is new to rc-3 and also reboot and shutdown both hang.

I am going to start bisecting to isolate the problem and let you know
what I find.

-- Shuah
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