Re: spurious APIC interrupt , then freeze

[Takashi Iwai <tiwai@suse.de>]

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At Sun, 12 Oct 2003 23:32:53 +0200,
Juan wrote:
> 
> 
> Soon after i load the maestro3 driver on a dell c600 laptop, kernel
> 2.6.0-test7; i get a 'spurious APIC interrupt on CPU#0, should never
> happen.'
> 
> then the laptop freezes and i have to power off by pressing the power
> button.
> 
> what does this mean ? how can it be fixed ?

does the attached patch have some influence?


Takashi

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Index: alsa-kernel/pci/maestro3.c
===================================================================
RCS file: /suse/tiwai/cvs/alsa/alsa-kernel/pci/maestro3.c,v
retrieving revision 1.43
diff -u -r1.43 maestro3.c
--- alsa-kernel/pci/maestro3.c	12 Aug 2003 14:05:07 -0000	1.43
+++ alsa-kernel/pci/maestro3.c	14 Oct 2003 14:36:33 -0000
@@ -2349,7 +2349,8 @@
 {
 	unsigned long io = chip->iobase;
 
-	outw(ASSP_INT_ENABLE | MPU401_INT_ENABLE, io + HOST_INT_CTRL);
+	/* TODO: MPU401 not supported yet */
+	outw(ASSP_INT_ENABLE /*| MPU401_INT_ENABLE*/, io + HOST_INT_CTRL);
 	outb(inb(io + ASSP_CONTROL_C) | ASSP_HOST_INT_ENABLE,
 	     io + ASSP_CONTROL_C);
 }