Re: Interrupt storm
From: Divacky Roman (xdivac02_at_stud.fit.vutbr.cz)
Date: 03/30/05
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Date: Wed, 30 Mar 2005 18:22:51 +0200 To: Jung-uk Kim <jkim@niksun.com>
On Tue, Mar 29, 2005 at 01:35:33PM -0500, Jung-uk Kim wrote:
> On Tuesday 29 March 2005 01:22 pm, Dan Cojocar wrote:
> > Hello all,
> >
> > I noticed the following interrupt storm in my dmesg:
> >
> > Interrupt storm detected on "irq11: rl1"; throttling interrupt
> > source Interrupt storm detected on "irq5: rl0"; throttling
> > interrupt source
> >
> > Here is my vmstat -i:
> > interrupt total rate
> > irq0: clk 128600 199
> > irq1: atkbd0 2499 3
> > irq4: sio0 2 0
> > irq5: rl0 128901 200
> > irq8: rtc 82294 127
> > irq11: rl1 128902 200
> > irq12: psm0 16152 25
> > irq14: ata0 12600 19
> > irq15: ata1 71 0
> > Total 500021 776
> >
> > and here is my dmesg:
> > http://cs.ubbcluj.ro/~dan/dmesg.txt
> >
> > I have options DEVICE_POLLING and options HZ=200, i have tested
> > with greater HZ values like 1000, and without DEVICE_POLLING but i
> > have the same storm.
>
> Try this:
>
> http://docs.freebsd.org/cgi/mid.cgi?200503161154.04555.jkim
as this points to my posts...
my problem is not the interrupt storm, but that I dont have assigned irq for
keyboard (which makes it slow I think).
and this is clear regression because in 5.3R it worked ;(
where should I look (in sources) what changed? I am not very skilled with this
lowlevel stuff but I am able and willing to try to hunt this down.
thnx for reply
roman
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