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Message-ID: <600c22710610131032u17a76999x403cab1c23f252af@mail.gmail.com>
Date: Fri, 13 Oct 2006 19:32:17 +0200
From: "Marko Vrh" <marko.vrh@...il.com>
To: linux-kernel@...r.kernel.org
Subject: Bug: <NULL>-edge in /proc/interrupts
On x86_64, kernel 2.6.19-rc1-git11 (but it's been like that since -rc1,
i think), /proc/interrupts shows:
0: 25980801 <NULL>-edge timer
It used to be Local-APIC-edge. The local APIC is used due to a chipset bug
(ATI RS480/SB400).
Regards.
--Marko
(Please cc: me in replies, i'm not on the list)
/proc/interrupts in full:
CPU0
0: 25980801 <NULL>-edge timer
1: 32668 IO-APIC-edge i8042
8: 0 IO-APIC-edge rtc
12: 27763 IO-APIC-edge i8042
14: 640128 IO-APIC-edge libata
15: 23 IO-APIC-edge libata
17: 8761 IO-APIC-fasteoi ATI IXP
19: 74283 IO-APIC-fasteoi ehci_hcd:usb1, ohci_hcd:usb2, ohci_hcd:usb3
20: 1 IO-APIC-fasteoi yenta
21: 96860 IO-APIC-fasteoi acpi
23: 7966724 IO-APIC-fasteoi eth0
NMI: 1823
LOC: 25976459
ERR: 234
Reason for using local APIC:
..MP-BIOS bug: 8254 timer not connected to IO-APIC
Using local APIC timer interrupts.
result 12469249
Detected 12.469 MHz APIC timer.
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