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From: Ralf Baechle <ralf@linux-mips.org>
To: Kip Walker <kwalker@broadcom.com>
Cc: linux-mips@linux-mips.org
Subject: Re: break_cow and cache flushing
Date: Thu, 17 Oct 2002 04:04:44 +0200	[thread overview]
Message-ID: <20021017040444.A26285@linux-mips.org> (raw)
In-Reply-To: <3DADFC0B.81C8C058@broadcom.com>; from kwalker@broadcom.com on Wed, Oct 16, 2002 at 04:53:47PM -0700

On Wed, Oct 16, 2002 at 04:53:47PM -0700, Kip Walker wrote:

> BUT either my understanding of (1) or (2) is wrong, or 'break_cow' needs
> to do a 'flush_icache_page' when the page is executable.  Consider the
> following (evil) case.

Ok, didn't get hold of Rik but another mm guy.  He agrees that fix is what
should be used.

Coincidentally that also explains a problem the ia64 guys were seeing :-)

  Ralf

  reply	other threads:[~2002-10-17  2:04 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-10-16 23:53 break_cow and cache flushing Kip Walker
2002-10-17  2:04 ` Ralf Baechle [this message]
2002-10-17  2:09 ` Ralf Baechle
2002-10-17  2:49 ` Nigel Weeks
2002-10-17  2:49   ` Nigel Weeks

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