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Subject: Re: [patch] tls-2.5.31-C3
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Ingo Molnar <mingo@elte.hu>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
       Linus Torvalds <torvalds@transmeta.com>, linux-kernel@vger.kernel.org,
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Date: 12 Aug 2002 13:29:27 +0100
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On Mon, 2002-08-12 at 13:55, Ingo Molnar wrote:
> 
> On 12 Aug 2002, Alan Cox wrote:
> 
> > > ugh, we do Linux interrupts while in the APM BIOS?
> > 
> > We have to. Most APM bios expects interrupts to be happening. In
> > pre-emptive mode we may well even be switching to/from APM BIOS code in
> > 2.5 at the moment. I've not looked into that.
> 
> i think that since we hold the APM spinlock (do we always, when calling
> into the APM BIOS?), we should not preempt any APM BIOS code.

Looking at the 2.5.29 tree I have handy here there is no APM spinlock. I
don't have 2.5.30/31 unpacked to check those



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