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Subject[SMP BUG] [clockevents: i386 drivers patch] introduces irqbalance-does-not-work-properly problem
Hi,


[clockevents: i386 drivers patch] introduces
irqbalance-does-not-work-properly problem.


(The irq is not distributed to two Core
,most of the irq is distributed to CPU1)


Mr. Thomas Gleixner,
any idea to fix this problem?


>e9e2cdb412412326c4827fc78ba27f410d837e6e is first bad commit
>commit e9e2cdb412412326c4827fc78ba27f410d837e6e
>Author: Thomas Gleixner <tglx@linutronix.de>
>Date: Fri Feb 16 01:28:04 2007 -0800
>
> [PATCH] clockevents: i386 drivers
>
> Add clockevent drivers for i386: lapic (local) and PIT/HPET (global). Update
> the timer IRQ to call into the PIT/HPET driver's event handler and the
> lapic-timer IRQ to call into the lapic clockevent driver. The assignement of
> timer functionality is delegated to the core framework code and replaces the
> compile and runtime evalution in do_timer_interrupt_hook()
>
> Use the clockevents broadcast support and implement the lapic_broadcast
> function for ACPI.
>
> No changes to existing functionality.
>
> [ kdump fix from Vivek Goyal <vgoyal@in.ibm.com> ]
> [ fixes based on review feedback from Arjan van de Ven <arjan@infradead.org> ]
> Cleanups-from: Adrian Bunk <bunk@stusta.de>
> Build-fixes-from: Andrew Morton <akpm@osdl.org>
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
> Signed-off-by: Ingo Molnar <mingo@elte.hu>
> Cc: john stultz <johnstul@us.ibm.com>
> Cc: Roman Zippel <zippel@linux-m68k.org>
> Cc: Andi Kleen <ak@suse.de>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
>


Best Regards
Komuro


> Hi,
>
> The irqbalance does not work properly with kernel 2.6.21
> on DualCore processor(AMD Athlon64 X2)
>
> (The irq is not distributed to two Core
> ,most of the irq is distributed to CPU1)
>
> Kernel 2.6.20 does not have this problem.
>
> The irqbalance version is 1.13-4.fc6.
>
> Any idea to fix this problem?
>
> CPU0 CPU1
> 0: 85 0 IO-APIC-edge timer
> 1: 0 698 IO-APIC-edge i8042
> 6: 0 5 IO-APIC-edge floppy
> 8: 0 1 IO-APIC-edge rtc
> 9: 0 0 IO-APIC-fasteoi acpi
> 12: 0 114 IO-APIC-edge i8042
> 14: 369 2281 IO-APIC-edge ide0
> 15: 0 24 IO-APIC-edge ide1
> 16: 15 38239 IO-APIC-fasteoi yenta, pcnet_cs
> 17: 0 0 IO-APIC-fasteoi yenta
> NMI: 0 0
> LOC: 50548 50547
> ERR: 0
> MIS: 15503
>
>
> Best Regards
> Komuro
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