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Subject: Re: Linux 2.4.21-pre3-ac4
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Ross Biro <rossb@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
       Alan Cox <alan@redhat.com>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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Date: 13 Jan 2003 21:05:51 +0000
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On Mon, 2003-01-13 at 19:32, Ross Biro wrote:
> One thing we could do to solve this entire problem is wait for the 
> interrupt to finish before sending the command to the drive in the first 
> place.  Basically in ide_do_request we just have to change


>     if (!masked_irq) {
>          disable_irq_sync(hwif->irq);
>     }

You cannot disable an IRQ synchronously holding a spin lock taken by an
IRQ handler

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