Re: hdb: dma_timer_expiry: dma status == 0x64 [2.5.69]

From: Maciej Soltysiak (solt@dns.toxicfilms.tv)
Date: Wed May 14 2003 - 09:13:15 EST

> I'm seeing it too, only with recent kernels.
Exactly like me.
Someone suggested Bartlomiej Zolnierkiewicz's patch.
Try this on for size. I haven't tested it yet, but please give it a shot.

Regards,
Maciej

# Fix masked_irq arg handling for ide_do_request().
# Solves "hdx: lost interrupt" bug.
#
# Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>

--- linux-2.5.68-bk6/drivers/ide/ide-io.c Fri Apr 25 16:08:53 2003
+++ linux/drivers/ide/ide-io.c Fri Apr 25 16:13:37 2003
@@ -850,14 +850,14 @@
                  * happens anyway when any interrupt comes in, IDE or otherwise
                  * -- the kernel masks the IRQ while it is being handled.
                  */
- if (hwif->irq != masked_irq)
+ if (masked_irq != IDE_NO_IRQ && hwif->irq != masked_irq)
                         disable_irq_nosync(hwif->irq);
                 spin_unlock(&ide_lock);
                 local_irq_enable();
                         /* allow other IRQs while we start this request */
                 startstop = start_request(drive, rq);
                 spin_lock_irq(&ide_lock);
- if (hwif->irq != masked_irq)
+ if (masked_irq != IDE_NO_IRQ && hwif->irq != masked_irq)
                         enable_irq(hwif->irq);
                 if (startstop == ide_released)
                         goto queue_next;

-
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