sound in 5.4-RELEASE && snd_ich.ko && Interrupt storm
Matthias Apitz
guru at Sisis.de
Mon Sep 26 06:33:28 PDT 2005
Hello,
after loading 'sound.ko' and 'snd_ich.ko' in my i386 notebook with
5.4-RELEASE, GENERIC kernel and the following modules:
# kldstat
Id Refs Address Size Name
1 15 0xc0400000 5dde24 kernel
2 1 0xc09de000 47e4 if_tap.ko
3 1 0xc09e3000 d164 kqemu.ko
4 14 0xc09f1000 56270 acpi.ko
5 1 0xc2784000 1c000 ipl.ko
6 1 0xc2867000 17000 linux.ko
7 2 0xc2ad2000 18000 sound.ko
9 1 0xc2b49000 17000 radeon.ko
10 1 0xc2af1000 5000 snd_ich.ko
I detected that the box was running very slow and with high percentage
of interrupts; this is aparently caused by the 'snd_ich.ko' somehow
because during unload it says:
# kldunload snd_ich
Interrupt storm detected on "irq11: cbb1 pcm0+++"; throttling interrupt source
pcm0: detached
# kldload snd_ich
pcm0: <SiS 7012> port 0x1800-0x187f,0x1c00-0x1cff irq 11 at device 2.7 on pci0
pcm0: <Cirrus Logic CS4299 AC97 Codec>
After 'kldunload snd_ich' and 'kldload snd_ich' sound works a while
but the Interrupt storm comes back after some time.
This problem looks similar to:
http://www.freebsd.org/cgi/query-pr.cgi?pr=80114
Is there some fix available?
Matthias
--
Matthias Apitz / Sisis Informationssysteme GmbH
Gruenwalder Weg 28g / D-82041 Oberhaching
Fon: ++49 89 / 61308-351, Fax: -399, Mobile ++49 170 4527211
http://www.sisis.de/
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