From: Kasper Dupont <kasperd@daimi.au.dk>
To: Benjamin LaHaise <bcrl@redhat.com>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>, linux-mm@redhat.com
Subject: Re: [PATCH] 2.4.19-pre8 vm86 smp locking fix
Date: Thu, 23 May 2002 23:36:23 +0200 [thread overview]
Message-ID: <3CED60D7.9E5032D7@daimi.au.dk> (raw)
In-Reply-To: <20020523165105.A27881@redhat.com>
Benjamin LaHaise wrote:
>
> arch/i386/kernel/vm86.c performs page table operations without obtaining
> any locks. This patch obtains page_table_lock around the the table walk
> and modification.
This patch can also be applied against 2.4.19-pre8-ac5.
The patch command does report:
patching file arch/i386/kernel/vm86.c
Hunk #1 succeeded at 124 (offset 27 lines).
Since this missing lock is completely unrelated to the
other bugfixes in vm86 I don't expect any bad interactions.
The pagetable access in arch/i386/kernel/vm86.c is related
to another access in arch/i386/mm/fault.c. Did anybody
verify that the other file does correct locking?
--
Kasper Dupont -- der bruger for meget tid på usenet.
For sending spam use mailto:razor-report@daimi.au.dk
next prev parent reply other threads:[~2002-05-23 21:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-23 20:51 [PATCH] 2.4.19-pre8 vm86 smp locking fix Benjamin LaHaise
2002-05-23 21:36 ` Kasper Dupont [this message]
2002-05-23 21:57 ` Benjamin LaHaise
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