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To: Jakub Travnik <J.Travnik@sh.cvut.cz>
Cc: linux-kernel@vger.kernel.org
Subject: Re: emu10k1 - interrupt storm?
In-Reply-To: <3C684A88.5070307@sh.cvut.cz>
Reply-To: zlatko.calusic@iskon.hr
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From: Zlatko Calusic <zlatko.calusic@iskon.hr>
Date: Tue, 12 Feb 2002 09:12:04 +0100
In-Reply-To: <3C684A88.5070307@sh.cvut.cz> (Jakub Travnik's message of "Mon,
 11 Feb 2002 23:49:44 +0100")
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Jakub Travnik <J.Travnik@sh.cvut.cz> writes:

> Hello and sorry for replying late,
>
> I did experienced same problems with emu10k1 on 2.4.8 (as is in Mandrake 8.1).
>
> After modprobing emu10k1, interrupts per second (as reported by vmstat)
> start to increase and in few minutes they were as high as 70000 per second.
> rmmod-ing emu10k1 caused number of interrupts per second to slowly decrease.
>
> Following setting affected this:
>
> In BIOS setup, PCI options:
> Interrupts triggered by
> 1, edge
> 2, level

Unfortunately I don't have that setting in my BIOS.

>
> value 'edge' causes problems,
> value 'level' makes thing work without problems.
>

But anyway, emu10k1 on irq 5 already uses level type:

  5:       5193       5183   IO-APIC-level  EMU10K1


> If you are experiencing problems with this, set to 'level'.
>

Eventually, I forced esd to exit after few seconds of inactivity. That
way I at least don't have interrupt storms when I don't have any sound
output through esd.

Regards,
-- 
Zlatko
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