From: Andy Pfiffer <andyp@osdl.org>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] 2.5.29: some compilation fixes for irq frenzy [OSS + i8x0 audio]
Date: 30 Jul 2002 14:35:56 -0700 [thread overview]
Message-ID: <1028064957.964.16.camel@andyp> (raw)
In-Reply-To: <1028069255.8510.46.camel@irongate.swansea.linux.org.uk>
On Tue, 2002-07-30 at 15:47, Alan Cox wrote:
> On Tue, 2002-07-30 at 22:19, Andy Pfiffer wrote:
> > As luck would have it, I booted the kernel and played the tunes on a
> > 2-way P4 Xeon system. Nothing wedged, but then again, I didn't try to
> > break it.
> >
> > So, what did I break?
>
> SMP support I think. A lot of the save_flags/cli stuff you changed looks
> like it needs to also lock out interrupts on the other processors,
> otherwise you can get a DMA pointer being updated under you.
>
Thanks. I'll take a look at it. --Andy
next prev parent reply other threads:[~2002-07-30 21:33 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-30 20:56 [PATCH] 2.5.29: some compilation fixes for irq frenzy [OSS + i8x0 audio] Andy Pfiffer
2002-07-30 22:25 ` Alan Cox
2002-07-30 21:19 ` Andy Pfiffer
2002-07-30 22:47 ` Alan Cox
2002-07-30 21:35 ` Andy Pfiffer [this message]
2002-07-31 21:50 ` Andy Pfiffer
2002-08-01 0:08 ` Alan Cox
2002-07-31 23:02 ` Dave Jones
2002-08-01 0:41 ` Alan Cox
2002-08-01 0:08 ` Alan Cox
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