From: Tim Blechmann <tim@klingt.org>
To: Helmut Schaa <helmut.schaa@googlemail.com>
Subject: Re: rt61pci issue
Date: Fri, 12 Nov 2010 17:03:48 +0100
Cc: linux-wireless@vger.kernel.org
References: <ibgpgg$a5m$1@dough.gmane.org> <201011121449.27414.helmut.schaa@googlemail.com>
In-Reply-To: <201011121449.27414.helmut.schaa@googlemail.com>
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> > cat /proc/interrupts |grep 16\: && sleep 1 && cat /proc/interrupts | gr=
ep=20
16\:
> >   16:          0    5140126          0          0   IO-APIC-fasteoi
> >=20
> > uhci_hcd:usb3, ahci, 0000:08:00.0
> >=20
> >   16:          0    5140357          0          0   IO-APIC-fasteoi
> >=20
> > uhci_hcd:usb3, ahci, 0000:08:00.0
>=20
> Ehm, one more thing: are you sure irq 16 is used for rt61pci. At least
> that part of /proc/interrupts suggests that irq 16 is somehow USB related.
>=20
> Could you check which irq is assigned to rt61pci?
> Can you reproduce the hangs without rt61pci as well?

it is irq 16: 0000:08:00.0
from lspci:
08:00.0 Network controller: RaLink RT2561/RT61 rev B 802.11g

the audio dropouts are somehow in sync with the network access. i actually=
=20
changed one thing today, increasing the timer frequency from 100 to 1000 hz=
, and=20
after 8 hours of uptime, the machine still works nicely. i will try to comp=
ile a=20
100hz kernel with your patch, but since from my experience, it takes some t=
ime=20
to show the behavior and i haven't found a way to trigger it consistently, =
it=20
may take some time ...

thanks, tim

=2D-=20
tim@klingt.org
http://tim.klingt.org

After one look at this planet any visitor from outer space would say
"I want to see the manager."
  William S. Burroughs

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