linux-kernel - Re: Linux 2.6.39-rc3

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Message-ID: <BANLkTimxG3QoLx0vqw9YgE_s4qyzcEoEaQ@mail.gmail.com>
Date:	Sat, 16 Apr 2011 14:54:04 -0400
From:	Jerome Glisse <j.glisse@...il.com>
To:	Joerg Roedel <joro@...tes.org>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
	Tejun Heo <tj@...nel.org>, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Yinghai Lu <yinghai@...nel.org>, alexandre.f.demers@...il.com
Subject: Re: Linux 2.6.39-rc3

On Sat, Apr 16, 2011 at 12:35 PM, Joerg Roedel <joro@...tes.org> wrote:
> On Fri, Apr 15, 2011 at 12:11:28PM -0400, Jerome Glisse wrote:
>> Do you also got the write if you load radeon with radeon.no_wb=1 ?
>> I think at this address it's the wb page, or maybe the cp as wb likely
>> take only one page
>
> radeon.no_wb=1 makes no difference. The box still reboots.
>
>        Joerg
>
>

If you want to go the printk way you can add printk before each test
ring_test, ib_test in r600.c this 2 functions are the own that might
trigger the first GPU gart activities.

Cheers,
Jerome
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