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Re: PREEMPT

To: Greg Weeks <greg.weeks@timesys.com>
Subject: Re: PREEMPT
From: Ralf Baechle <ralf@linux-mips.org>
Date: Thu, 6 Oct 2005 19:55:04 +0100
Cc: linux-mips@linux-mips.org, "Cooper, John" <john.cooper@timesys.com>
In-reply-to: <43457266.3090208@timesys.com>
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References: <43456EA9.8020209@timesys.com> <20051006184656.GA12173@linux-mips.org> <43457266.3090208@timesys.com>
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On Thu, Oct 06, 2005 at 02:52:22PM -0400, Greg Weeks wrote:

> I'd remembered some problems ages ago, but had thought they'd been 
> fixed. John was just picking my brain about it so I thought I'd ask to 
> be sure.

The problems I recall were all related to being preempted just while
fiddling with the hardware FPU - can't happen on the fpu-less 4Kc.
Another issue fixesd recently even though more cosmetic were a bunch
of global variables.

  Ralf

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