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Date:      Sat, 5 May 2007 08:15:46 +0300
From:      Kostik Belousov <kostikbel@gmail.com>
To:        Harald Schmalzbauer <h.schmalzbauer@omnisec.de>
Cc:        freebsd-current@freebsd.org
Subject:   Re: interrupt storm irq9 and ath
Message-ID:  <20070505051546.GT2441@deviant.kiev.zoral.com.ua>
In-Reply-To: <200705050332.11753.h.schmalzbauer@omnisec.de>
References:  <200705050332.11753.h.schmalzbauer@omnisec.de>

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On Sat, May 05, 2007 at 03:32:11AM +0200, Harald Schmalzbauer wrote:
> Hi, me again, again a new problem with my laptop:
>=20
> it's a old Vaio SRX41p, p3m@800, no apic, the BIOS (Sony U2) assigns only=
 irq9=20
> to all devices.
> Enabling wpa_supplicant leads to interrupt storm messages.
> I've been using this laptop with 6.2 heavily but never saw any interrupt =
storm=20
> message before.
> Also tuning the sysctl vrom 100 to 500 hasn't helped (can't remember the =
MIB=20
> exactly right now, but of course will look if it helps).
>=20
> I have compiled in cpufreq and I use powerd but that doesn't seem to be t=
he=20
> problem because if the machine is under load, so that est doesn't step do=
wn,=20
> I also get the storm throttle.

Me too kind of response. There, I have ath and snd_hda sharing interrupt
on the Acer 945GM based laptop. I need to provoke the interrupt storm,
though. It starts after I do "ifconfig ath0 up; ifconfig ath0 list scan"
without configuring network. Doing "ifconfig ath0 down" stops the storm.
Otherwise (i.e., when associating with ap) interface works normally.

Releng_6.

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