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Message-ID: <20071123103655.1ee713f1@the-village.bc.nu> Date: Fri, 23 Nov 2007 10:36:55 +0000 From: Alan Cox <alan@...rguk.ukuu.org.uk> To: Bartlomiej Zolnierkiewicz <bzolnier@...il.com> Cc: niessner@....nasa.gov, Kyle McMartin <kyle@...artin.ca>, linux-kernel@...r.kernel.org Subject: Re: Where is the interrupt going? On Fri, 23 Nov 2007 02:58:55 +0100 Bartlomiej Zolnierkiewicz <bzolnier@...il.com> wrote: > On Friday 23 November 2007, Alan Cox wrote: > > On Thu, 22 Nov 2007 16:48:53 -0800 > > niessner@....nasa.gov wrote: > > > > > > > > I tried the hammer and the problem persists. > > > > See my earlier email - your driver registers the irq with IRQF_DISABLED > > then never enables it. > > As already explained by Kyle IRQF_DISABLED shouldn't matter here. > > [ Nowadays IRQF_DISABLED only tells kernel/irq/handle.c::handle_IRQ_event() > to not enable local interrupts before calling your IRQ handler. > > I've recently removed IRQF_DISABLED from IDE after noticing this. ] Bartlomiej is of course correct. Thats what you get for replying late at night in a hurry. I'm not sure IDE can work without it because you need to lock out the timer events (old IDE doesn't handle this at all on SMP though so it wants fixing properly anyway). Alan - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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