Messages in this thread | | | Date | Wed, 02 May 2012 14:23:57 -0600 | From | Chris Friesen <> | Subject | why would irq0 have many many more interrupts than LOC? |
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I have an x86_64 2.6.27 kernel running on a Sandy Bridge machine.
/proc/interrupts currently shows 75573114 counts for irq0 on cpu 0 and no counts on other cpus and between 2973587 and 4185923 counts for "LOC" spread across all cpus including cpu0.
The following are enabled.
CONFIG_GENERIC_HARDIRQS=y CONFIG_PREEMPT_SOFTIRQS=y CONFIG_PREEMPT_HARDIRQS=y CONFIG_HIGH_RES_TIMERS=y CONFIG_HZ_1000=y CONFIG_HZ=1000
It almost seems like it's taking a timer interrupt on cpu0 for every local timer interrupt on every cpu. Surely that's not design intent?
Any ideas on how to fix this?
Chris
-- Chris Friesen Software Developer GENBAND chris.friesen@genband.com www.genband.com
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