Re: port-evbarm/49019: RPI: interrupt storm when url0 is up

[Nick Hudson <skrll%netbsd.org@localhost>]

The following reply was made to PR port-evbarm/49019; it has been noted by 
GNATS.

From: Nick Hudson <skrll%netbsd.org@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: David Holland <dholland-bugs%netbsd.org@localhost>, 
gnats-admin%netbsd.org@localhost, 
 netbsd-bugs%netbsd.org@localhost, Takahiro HAYASHI 
<t.hash425%gmail.com@localhost>
Subject: Re: port-evbarm/49019: RPI: interrupt storm when url0 is up
Date: Sun, 20 Jul 2014 22:04:26 +0100

 On 07/20/14 21:15, David Holland wrote:
 > The following reply was made to PR port-evbarm/49019; it has been noted by 
 > GNATS.
 >
 > From: David Holland <dholland-bugs%netbsd.org@localhost>
 > To: gnats-bugs%NetBSD.org@localhost
 > Cc:
 > Subject: Re: port-evbarm/49019: RPI: interrupt storm when url0 is up
 > Date: Sun, 20 Jul 2014 20:13:22 +0000
 >
 >   On Fri, Jul 18, 2014 at 09:00:00PM +0000, Takahiro HAYASHI wrote:
 >    > >Description:
 >    >         I have noticed tty interaction gets slow and laggie when
 >    >         I turn up url0 plugged into Raspberry-Pi.
 >    >         "bcm2835 pic usb" intr rate shown by systat vm increases from
 >    >         about 8100 to more than 37000.
 >    >         It gets back to 8100 when ifconfig url0 down.
 >    >
 >    >         This issue happens with kue and udav too, but does not w/ axe.
 >    >         url, kue, and udav are FS devices, axe is HS device.
 >    >
 >    > >How-To-Repeat:
 >    >         Plug url, kue, or udav into RPI and ifconfig it up.
 >   
 >   Which usb controller is this?
 
 dwc2
 
 Nick