From: Komuro <komurojun-mbn@nifty.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org, mingo@elte.hu
Subject: Re: [SMP BUG] [clockevents: i386 drivers patch] introduces irqbalance-does-not-work-properly problem
Date: Sun, 20 May 2007 19:48:01 +0900 [thread overview]
Message-ID: <20070520194801.6436597c.komurojun-mbn@nifty.com> (raw)
In-Reply-To: <1179644956.21827.5.camel@chaos>
On Sun, 20 May 2007 09:09:16 +0200
Thomas Gleixner <tglx@linutronix.de> wrote:
> > Mr. Thomas Gleixner,
> > any idea to fix this problem?
>
> Which problem ?
The problem is CPU1 receives 38239 interrupt-16
but CPU0 receives only 15 interrupt-16
CPU0 should receive more interrupts.
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 <<< problem
17: 0 0 IO-APIC-fasteoi yenta
NMI: 0 0
LOC: 50548 50547
ERR: 0
MIS: 15503
Best Regards
Komuro
> On Sun, 2007-05-20 at 11:14 +0900, Komuro wrote:
> > Hi,
> >
> >
> > [clockevents: i386 drivers patch] introduces
> > irqbalance-does-not-work-properly problem.
>
> it disables irq balancing for IRQ0, but this does not affect any other
> interrupts. It is almost irrelevant as the PIT/HPET timer interrupt
> (irq0) is disabled anyway and the local apic timer is used.
>
> > > CPU0 CPU1
> > > 0: 85 0 IO-APIC-edge timer
>
> There is no interrupt happening after bootup, so balancing is not a
> problem here.
>
> > Mr. Thomas Gleixner,
> > any idea to fix this problem?
>
> Which problem ?
>
> tglx
>
>
next prev parent reply other threads:[~2007-05-20 10:48 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1178202559.3767.21.camel@localhost.localdomain>
2007-05-04 14:32 ` [FW ide-cs] Re: jvc cdrom drive Komuro
2007-05-06 15:00 ` [FW ide-cs] Re: jvc cdrom drive lockup Richard Kennedy
2007-05-10 6:06 ` Zhang, Yanmin
2007-05-10 23:06 ` Andrew Morton
2007-05-13 11:04 ` [SMP BUG] kernel 2.6.21: irqbalance does not work properly Komuro
2007-05-20 2:14 ` [SMP BUG] [clockevents: i386 drivers patch] introduces irqbalance-does-not-work-properly problem Komuro
2007-05-20 3:03 ` Jeff Garzik
2007-05-20 10:42 ` Komuro
2007-05-20 7:09 ` Thomas Gleixner
2007-05-20 10:48 ` Komuro [this message]
2007-05-20 13:47 ` Thomas Gleixner
2007-05-21 12:08 ` Komuro
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