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Date: Wed, 21 Jul 2010 11:50:28 -0700 (PDT)
From: Doug Barton <dougb@FreeBSD.org>
To: Andriy Gapon <avg@icyb.net.ua>
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Cc: freebsd-current@FreeBSD.org
Subject: Re: Why is intr taking up so much cpu?
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On Wed, 21 Jul 2010, Andriy Gapon wrote:
>
>
> Doug,
>
> could you please show your timer configuration,
Nothing special in /boot/loader.conf, /etc/sysctl.conf, or my kernel.
It's basically just GENERIC minus devices I don't have, plus the
following:
options DDB_CTF
options VESA
options GEOM_BDE
device atapicam
device sound
device snd_hda
Interestingly, I had a runaway intr thing again after watching a flash
video, but this time it was hdac0, not swi:4.
http://people.freebsd.org/~dougb/bad-dtrace-3-hdac.txt
http://people.freebsd.org/~dougb/bad-dtrace-4-hdac.txt
> part of devinfo -u that describes interrupts
Interrupt request lines:
0 (attimer0)
1 (atkbd0)
3 (root0)
4 (uart0)
5-7 (root0)
8 (atrtc0)
9 (acpi0)
10-11 (root0)
12 (psm0)
12 (psmcpnp0)
13 (root0)
14 (ata0)
15 (ata1)
16 (root0)
17 (wpi0)
18 (cbb0)
19 (root0)
20 (ehci0)
20 (uhci0)
20 (hpet0)
21 (uhci1)
22 (uhci2)
23 (uhci3)
256 (hdac0)
> and top of the output of top -SPH (including the header)
> when high interrupt load strikes?
Will do next time, thanks!
Doug
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