From: Greg KH <greg@kroah.com>
To: Andrea Arcangeli <andrea@suse.de>
Cc: Christoph Hellwig <hch@suse.de>,
"Martin J. Bligh" <Martin.Bligh@us.ibm.com>,
Hugh Dickins <hugh@veritas.com>,
Rik van Riel <riel@conectiva.com.br>,
Dave McCracken <dmccr@us.ibm.com>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Creating a per-task kernel space for kmap, user pagetables, et al
Date: Thu, 21 Mar 2002 11:54:51 -0800 [thread overview]
Message-ID: <20020321195451.GB4110@kroah.com> (raw)
In-Reply-To: <127930000.1016651345@flay> <20020320212341.M4268@dualathlon.random> <20020320203520.A2003@infradead.org> <20020320223425.P4268@dualathlon.random> <20020320214607.A6363@infradead.org> <20020320230002.A16801@dualathlon.random>
On Wed, Mar 20, 2002 at 11:00:02PM +0100, Andrea Arcangeli wrote:
> But it is much faster to keep the kernel stack always in 4M global
> tlbs, thus I don't think we need to change that in 2.5. (also USB was
> used to do dma in the kernel stack, not sure if they changed it
> recently)
Hopefully all instances of the USB code doing that have now been fixed.
If anyone sees any USB code that uses the kernel stack for USB
transfers, please let me know so it can be fixed.
We (the USB group) have always known that this is a bug in our code, so
don't feel you can't change things just because the USB code might be
broken by it :)
thanks,
greg k-h
next prev parent reply other threads:[~2002-03-21 19:55 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-03-20 19:09 Creating a per-task kernel space for kmap, user pagetables, et al Martin J. Bligh
2002-03-20 19:36 ` Rik van Riel
2002-03-20 20:26 ` Andrea Arcangeli
2002-03-20 19:45 ` Christoph Hellwig
2002-03-20 23:39 ` Alan Cox
2002-03-21 4:21 ` Itai Nahshon
2002-03-21 13:34 ` Alan Cox
2002-03-21 14:34 ` Martin J. Bligh
2002-03-21 15:38 ` Itai Nahshon
2002-03-20 19:56 ` Hugh Dickins
2002-03-20 20:23 ` Andrea Arcangeli
2002-03-20 20:35 ` Christoph Hellwig
2002-03-20 21:17 ` Hugh Dickins
2002-03-20 21:38 ` Andrea Arcangeli
2002-03-20 21:34 ` Andrea Arcangeli
2002-03-20 21:46 ` Christoph Hellwig
2002-03-20 22:00 ` Andrea Arcangeli
2002-03-21 19:54 ` Greg KH [this message]
2002-03-21 23:29 ` Andrea Arcangeli
2002-03-21 23:49 ` William Lee Irwin III
2002-03-22 1:20 ` Andrea Arcangeli
2002-03-20 22:10 ` Martin J. Bligh
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