Messages in this thread | | | Date | Mon, 15 Aug 2005 21:05:41 +0530 | From | Srivatsa Vaddagiri <> | Subject | Re: [ck] [PATCH] dynamic-tick patch modified for SMP |
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On Sun, Aug 14, 2005 at 10:18:28AM +1000, Con Kolivas wrote: > timers that made no progress until interrupts drove the timers on again. I > built in both PIT and APIC dyntick mode into the kernel and the default in > the way I modified the patch is for APIC mode to be used if it's built in. > After that I modified the values using the sysfs interface at > /sys/devices/system/dyn_tick/dyn_tick0/. In APIC mode it seems to run close to
Con, I am observing the reverse problem - my patch does not work in APIC mode. I am thinking it has to do something with disabling PIT interrupts.
Have you enabled CONFIG_DYN_TICK_USE_APIC in my patch? What does /sys/.../dyn_tick0/state show when my patch is working (in APIC mode for you)? Can you disable CONFIG_DYN_TICK_USE_APIC with my patch and check if it works? Also can you send me 'dmesg | grep APIC' (want to know if your hardware has local APIC that is enabled by the kernel).
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Thanks and Regards, Srivatsa Vaddagiri, Linux Technology Center, IBM Software Labs, Bangalore, INDIA - 560017 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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