From: Benjamin LaHaise <bcrl@redhat.com>
To: Andi Kleen <ak@suse.de>
Cc: Andrea Arcangeli <andrea@suse.de>,
linux-kernel@vger.kernel.org,
Richard Brunner <richard.brunner@amd.com>,
mark.langsdorf@amd.com
Subject: Re: New version of pageattr caching conflict fix for 2.4
Date: Fri, 14 Jun 2002 11:28:49 -0400 [thread overview]
Message-ID: <20020614112849.A22888@redhat.com> (raw)
In-Reply-To: <20020613221533.A2544@wotan.suse.de> <20020613210339.B21542@redhat.com> <20020614032429.A19018@wotan.suse.de> <20020613213724.C21542@redhat.com> <20020614040025.GA2093@inspiron.birch.net> <20020614001726.D21542@redhat.com> <20020614062754.A11232@wotan.suse.de>
On Fri, Jun 14, 2002 at 06:27:54AM +0200, Andi Kleen wrote:
> Both AMD x86-64 and Intel IA32 documentation states that INVLPG flushes global
> TLBs. The first version of change_page_attr did in fact use __flush_tlb_all,
> but I changed it after checking the docs.
As Andrea pointed out, there is an errata whereby 4MB pages aren't flushed
on the Athlon. If you mask off the low bits of the address for flushing,
that should fix the problem, and sounds like a plausible explanation for
the failure I saw.
-ben
ps. s/La Haise/LaHaise would be nice, too.
--
"You will be reincarnated as a toad; and you will be much happier."
next prev parent reply other threads:[~2002-06-14 15:28 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-13 20:15 New version of pageattr caching conflict fix for 2.4 Andi Kleen
2002-06-14 1:03 ` Benjamin LaHaise
2002-06-14 1:24 ` Andi Kleen
2002-06-14 1:37 ` Benjamin LaHaise
2002-06-14 4:00 ` Andrea Arcangeli
2002-06-14 4:17 ` Benjamin LaHaise
2002-06-14 4:27 ` Andi Kleen
2002-06-14 15:28 ` Benjamin LaHaise [this message]
2002-06-14 16:13 ` Andi Kleen
2002-06-14 17:31 ` Andrea Arcangeli
2002-06-14 18:05 ` another new " Andi Kleen
2002-06-16 10:08 ` Eric W. Biederman
2002-06-16 16:48 ` Andi Kleen
2002-06-16 17:50 ` Eric W. Biederman
2002-06-16 18:43 ` Andi Kleen
2002-06-16 19:56 ` Eric W. Biederman
2002-06-16 23:37 ` Andi Kleen
2002-06-17 0:08 ` Albert D. Cahalan
2002-06-17 4:06 ` Eric W. Biederman
2002-06-17 6:53 ` Andrea Arcangeli
2002-06-17 15:46 ` Eric W. Biederman
2002-06-14 4:28 ` New " Andrea Arcangeli
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