Messages in this thread | | | Date | Sun, 23 Feb 2003 20:42:49 +1100 | From | James Harper <> | Subject | SMP and CPU1 not showing interrupts in /proc/interrupts |
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somewhere between about 2.5.53 and 2.5.62 my /proc/interrupts has gone from an approximately even distribution of interrupts between CPU0 and CPU1 to grossly uneven:
CPU0 CPU1 0: 13223321 2233217 IO-APIC-edge timer 1: 13442 0 IO-APIC-edge i8042 2: 0 0 XT-PIC cascade 3: 291874 0 IO-APIC-edge serial 8: 3 0 IO-APIC-edge rtc 9: 0 0 IO-APIC-edge acpi 14: 18932 0 IO-APIC-edge ide0 15: 14 0 IO-APIC-edge ide1 16: 190607 1 IO-APIC-level eth0, nvidia 17: 3214 0 IO-APIC-level bttv0 18: 14249 1 IO-APIC-level ide2 19: 121942 0 IO-APIC-level uhci-hcd, wlan0 NMI: 0 0 LOC: 15458218 15458423 ERR: 0 MIS: 0
if i really hit the system hard then CPU1 will start accruing interrupts but in a mostly idle state CPU1 just sits on its bum and lets CPU0 handle them all, with the exception of irq #0, for some reason.
any ideas?
thanks
James
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