From: Ralf Baechle <ralf@linux-mips.org>
To: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Cc: linux-mips@linux-mips.org
Subject: Re: copy_from_user_page/copy_to_user_page fix
Date: Wed, 9 Feb 2005 13:51:05 +0100 [thread overview]
Message-ID: <20050209125105.GA27875@linux-mips.org> (raw)
In-Reply-To: <20050209.184947.30439119.nemoto@toshiba-tops.co.jp>
On Wed, Feb 09, 2005 at 06:49:47PM +0900, Atsushi Nemoto wrote:
> Yet another dcache aliasing problem.
>
> Since access_process_vm() in kernel 2.6 does not call
> flush_cache_page(), it seems copy_to_user_page()/copy_from_user_page()
> should flush data cache to resolve aliasing.
>
> Without this fix, gdb will not work correctly. Could you apply?
I'm going to apply this because it's a correct fix; the temporary mapping
strategy as we've discussed for the dup_mmap problem would be preferable.
Ralf
next prev parent reply other threads:[~2005-02-09 12:51 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-09 9:49 copy_from_user_page/copy_to_user_page fix Atsushi Nemoto
2005-02-09 12:51 ` Ralf Baechle [this message]
2005-02-09 13:52 ` Atsushi Nemoto
2005-02-09 18:10 ` Ralf Baechle
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