Re: IRQ-Routing Problems (ShowStopper)

From: Dan Nelson <dnelson_at_allantgroup.com>
Date: Sat, 5 Jun 2004 14:20:19 -0500
In the last episode (Jun 05), Matthias Schuendehuette said:
> I have still IRQ-Problems on my machine which seem to be ACPI related 
> (i.e. which don't occur without ACPI) but seem to have a different 
> source than the last shutdown/reboot issue.
> 
> The last working kernel is from May 22, after the new ACPI-Code no 
> kernel boots with ACPI enabled any more.
> 
> The core problem is the handling of IRQ 10 on my machine. This IRQ is 
> marked as 'Legacy/ISA' in my BIOS-Settings and is used for my ISA 
> "Teles S0/16.3"-ISDN-Card.

I'm having similar problems with IRQs.  I haven't reserved any IRQs in
my BIOS (no ISA cards), but with ACPI enabled, my SCSI card doesn't
seem to be getting interrupts, and my soundcard gets probed as pcm2
instead of pcm0.

--- /tmp/dmesg.noacpi
+++ /tmp/dmesg.acpi
-$PIR: 0:7 INTD routed to irq 9
-$PIR: 0:11 INTA routed to irq 3
-$PIR: 0:13 INTA routed to irq 11
-$PIR: 0:14 INTA routed to irq 9
-$PIR: 1:0 INTA routed to irq 11
+pcib0: slot 7 INTD is routed to irq 5
+pcib0: slot 11 INTA is routed to irq 11
+pcib0: slot 13 INTA is routed to irq 10
+pcib0: slot 14 INTA is routed to irq 9
+pcib0: slot 1 INTA is routed to irq 10
+pcib1: slot 0 INTA is routed to irq 10

Full dmesgs attached.


-- 
	Dan Nelson
	dnelson_at_allantgroup.com

Received on Sat Jun 05 2004 - 10:20:30 UTC

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