From: Dave Jones <davej@redhat.com>
To: Manfred Spraul <manfred@colorfullife.com>
Cc: Petr Vandrovec <vandrove@vc.cvut.cz>, linux-kernel@vger.kernel.org
Subject: Re: EFAULT reading /dev/mem... - broken x86info
Date: Mon, 10 Nov 2003 16:56:54 +0000 [thread overview]
Message-ID: <20031110165654.GS10144@redhat.com> (raw)
In-Reply-To: <3FAFC1D1.3090309@colorfullife.com>
On Mon, Nov 10, 2003 at 05:50:25PM +0100, Manfred Spraul wrote:
> It breaks either your app or your AGP driver - what's simpler to fix?
> I'm biased, because if you update the AGP driver, then I must figure out
> how to fix DEBUG_PAGEALLOC 8-)
I'm not convinced changing agpgart is worth the pain.
The only userspace app that actually grovels through the aperture
in this way is the agpgart test code, so this shouldn't be an issue.
I thought the DEBUG_PAGEALLOC stuff just unmapped pages that had been
kmalloc'd ? The area of memory we're trying to read those mptables from
shouldn't be unmapped in the first place should they ? Confused.
Dave
next prev parent reply other threads:[~2003-11-10 16:58 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-08 16:27 EFAULT reading /dev/mem... - broken x86info Petr Vandrovec
2003-11-10 13:55 ` Richard B. Johnson
2003-11-10 16:11 ` Dave Jones
2003-11-10 16:50 ` Manfred Spraul
2003-11-10 16:56 ` Dave Jones [this message]
2003-11-10 17:17 ` Manfred Spraul
2003-11-10 18:05 ` Petr Vandrovec
2003-11-10 18:59 ` Manfred Spraul
2003-11-10 19:36 ` Mika Penttilä
2003-11-10 19:47 ` Manfred Spraul
2003-11-10 20:24 ` Dave Jones
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