From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Andy Pfiffer <andyp@osdl.org>
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 23:47:35 +0100 [thread overview]
Message-ID: <1028069255.8510.46.camel@irongate.swansea.linux.org.uk> (raw)
In-Reply-To: <1028063953.964.13.camel@andyp>
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.
next prev parent reply other threads:[~2002-07-30 21:28 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-30 20:56 Andy Pfiffer
2002-07-30 22:25 ` Alan Cox
2002-07-30 21:19 ` Andy Pfiffer
2002-07-30 22:47 ` Alan Cox [this message]
2002-07-30 21:35 ` Andy Pfiffer
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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