From mboxrd@z Thu Jan  1 00:00:00 1970
From: Yinghai Lu <yinghai@kernel.org>
Subject: Re: Linux 2.6.39-rc3
Date: Fri, 15 Apr 2011 12:18:02 -0700
Message-ID: <4DA899EA.8010602@kernel.org>
References: <BANLkTik7W0u92n_s0t32dsoLULu4QTZneA@mail.gmail.com> <4DA6145D.9070703@kernel.org> <BANLkTinud+4nUkZtnYRrU_gAFaMDWRa_AA@mail.gmail.com> <4DA655E7.3000904@zytor.com> <BANLkTimqR_M5keMqr5WAuz-t+1BkCZbwCg@mail.gmail.com> <BANLkTincU4rM+SqhzGOK_Rgxgg8fqJOOdQ@mail.gmail.com> <20110415131152.GJ18463@8bytes.org> <4DA8535B.4080901@gmail.com> <20110415142724.GK18463@8bytes.org> <4DA895A2.4060307@gmail.com> <20110415190641.GA20770@elte.hu>
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To: Ingo Molnar <mingo@elte.hu>
Cc: Alexandre Demers <alexandre.f.demers@gmail.com>, Joerg Roedel <joro@8bytes.org>, Linus Torvalds <torvalds@linux-foundation.org>, "H. Peter Anvin" <hpa@zytor.com>, Alex Deucher <alexdeucher@gmail.com>, Linux Kernel Mailing List <linux-kernel@vger.kernel.org>, "dri-devel@lists.freedesktop.org" <dri-devel@lists.freedesktop.org>, Thomas Gleixner <tglx@linutronix.de>, Tejun Heo <tj@kernel.org>
List-Id: dri-devel@lists.freedesktop.org

On 04/15/2011 12:06 PM, Ingo Molnar wrote:

> 
> Joerg, mind submitting it with a changelog that includes everything we learned 
> about this bug and all the Tested-by's in place?
> 
> Is anyone of the opinion that we should try to revert the allocation 
> order/alignment changes in addition to this fix?

We should figure out what is written to 0xa0001000 (main memory) by GPU before internal GART is setup.

Joerg,
can you insert some dump code in the drm/radon code to find out which function cause the problem?

Thanks

Yinghai