From: Momchil Velikov <velco@fadata.bg>
To: "David S. Miller" <davem@redhat.com>
Cc: manfred@colorfullife.com, masp0008@stud.uni-saarland.de,
drobbins@gentoo.org, linux-kernel@vger.kernel.org
Subject: Re: Athlon/AGP issue update
Date: 23 Jan 2002 14:32:57 +0200 [thread overview]
Message-ID: <87wuy9b62u.fsf@fadata.bg> (raw)
In-Reply-To: <3C4E9291.8DA0BD7F@stud.uni-saarland.de> <20020123.034411.71089598.davem@redhat.com>
In-Reply-To: <20020123.034411.71089598.davem@redhat.com>
>>>>> "David" == David S Miller <davem@redhat.com> writes:
David> 4MB pages map the GART pages and "other stuff", ie. memory used by
David> other subsystems, user pages and whatever else. This is the only
David> way the bug can be thus triggered for kernel mappings, which is why
David> turning off 4MB pages fixes this part.
Erm, why would the granularity of mapping matter at all ? Or, for that
matter, the very existanse of address translation ?
David> The only unresolved bit is the fact that we map these GART pages
David> cacheable into user space. That ought to cause the problem too.
They're mapped with 4KB pages too, right ? What makes it diferent to
4KB kernel mappings ?
next prev parent reply other threads:[~2002-01-23 12:32 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-23 10:38 Athlon/AGP issue update Studierende der Universitaet des Saarlandes
2002-01-23 11:44 ` David S. Miller
2002-01-23 12:32 ` Momchil Velikov [this message]
2002-01-23 12:34 ` David S. Miller
2002-01-23 12:41 ` Momchil Velikov
2002-01-23 14:50 ` Manfred Spraul
2002-01-23 11:44 ` David Woodhouse
2002-01-23 11:49 ` David S. Miller
-- strict thread matches above, loose matches on Subject: below --
2002-01-23 9:52 Daniel Robbins
2002-01-23 10:18 ` David S. Miller
2002-01-23 2:46 ` benh
2002-01-23 14:08 ` David S. Miller
2002-01-23 15:47 ` benh
2002-01-25 18:34 ` Val Henson
2002-01-26 0:20 ` Benjamin Herrenschmidt
2002-01-27 19:22 ` Val Henson
2002-01-27 19:32 ` Benjamin Herrenschmidt
2002-01-23 16:31 ` Albert D. Cahalan
2002-01-23 16:57 ` Daniel Robbins
2002-01-23 17:14 ` benh
2002-01-23 23:14 ` Albert D. Cahalan
2002-01-25 18:17 ` Val Henson
2002-01-23 19:20 ` Oliver Neukum
[not found] ` <200201231010.g0NAAuE05886@Port.imtp.ilyichevsk.odessa.ua>
2002-01-23 10:24 ` David S. Miller
2002-01-23 10:31 ` Rik van Riel
2002-01-23 11:39 ` David S. Miller
2002-01-23 11:39 ` William Lee Irwin III
2002-01-23 11:47 ` David S. Miller
2002-01-23 17:09 ` Albert D. Cahalan
2002-01-23 18:38 ` David S. Miller
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