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Date: Sat, 16 Apr 2011 14:54:04 -0400
Message-ID: <BANLkTimxG3QoLx0vqw9YgE_s4qyzcEoEaQ@mail.gmail.com>
Subject: Re: Linux 2.6.39-rc3
From: Jerome Glisse <j.glisse@gmail.com>
To: Joerg Roedel <joro@8bytes.org>
Cc: Ingo Molnar <mingo@elte.hu>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        "dri-devel@lists.freedesktop.org" <dri-devel@lists.freedesktop.org>,
        Tejun Heo <tj@kernel.org>, "H. Peter Anvin" <hpa@zytor.com>,
        Thomas Gleixner <tglx@linutronix.de>, Yinghai Lu <yinghai@kernel.org>,
        alexandre.f.demers@gmail.com
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On Sat, Apr 16, 2011 at 12:35 PM, Joerg Roedel <joro@8bytes.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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