* weird APIC problem: irq 177 & irq 185
@ 2004-10-10 0:35 Lee Revell
2004-10-10 1:38 ` Roland Dreier
0 siblings, 1 reply; 2+ messages in thread
From: Lee Revell @ 2004-10-10 0:35 UTC (permalink / raw)
To: linux-kernel; +Cc: Richard Rosenberg
Someone posted a bug report to alsa-user, and /proc/interrupts dies not
look right. Kernel is 2.6.8 on Debian Sid, more info is forthcoming.
It's a dual PIII-600.
There is no such thing as IRQ 177 and IRQ 185, correct?
CPU0 CPU1
0: 12931075 145 IIO-APIC-edge timer
1: 3516 1 IO-APIC-edge i8042
8: 4 0 IO-APIC-edge rtc
9: 0 0 IO-APIC-level acpi
11: 0 0 IO-APIC-level uhci_hcd, uhci_hcd
12: 222138 1 IO-APIC-edge i8042
14: 35418 2 IO-APIC-edge ide0
15: 24 1 IO-APIC-edge ide1
177: 22627 1 IO-APIC-level eth1
185: 0 0 IO-APIC-level EMU10K1
NMI: 0 0
LOC: 12931345 12931386
ERR: 0
MIS: 0
Lee
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: weird APIC problem: irq 177 & irq 185
2004-10-10 0:35 weird APIC problem: irq 177 & irq 185 Lee Revell
@ 2004-10-10 1:38 ` Roland Dreier
0 siblings, 0 replies; 2+ messages in thread
From: Roland Dreier @ 2004-10-10 1:38 UTC (permalink / raw)
To: Lee Revell; +Cc: linux-kernel, Richard Rosenberg
Lee> There is no such thing as IRQ 177 and IRQ 185, correct?
With CONFIG_PCI_MSI (used to be CONFIG_PCI_USE_VECTOR) it's entirely
possible to get interrupt numbers like that. On my dual Xeon system,
I have /proc/interrupts that looks like:
CPU0 CPU1 CPU2 CPU3
0: 288964788 0 0 0 IO-APIC-edge timer
2: 0 0 0 0 XT-PIC cascade
4: 303 0 0 0 IO-APIC-edge serial
14: 67708 1 0 0 IO-APIC-edge ide0
15: 13 0 0 0 IO-APIC-edge ide1
153: 0 0 0 0 IO-APIC-level uhci_hcd
161: 1590294 0 0 0 IO-APIC-level eth0
169: 0 0 0 0 IO-APIC-level uhci_hcd
177: 0 0 0 0 IO-APIC-level uhci_hcd
201: 81 0 0 0 PCI-MSI-X ib_mthca (comp)
209: 2 0 0 0 PCI-MSI-X ib_mthca (async)
217: 2171 0 0 0 PCI-MSI-X ib_mthca (cmd)
NMI: 57794488 57794274 57794272 57794270
LOC: 288981914 288981943 288981942 288981941
ERR: 0
MIS: 0
- Roland
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