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From: Hans Petter Selasky <hselasky@c2i.net>
To: Bukin Ruslan <br@rambler-co.ru>
Date: Wed, 25 Nov 2009 19:25:09 +0100
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Cc: freebsd-usb@freebsd.org
Subject: Re: uhci_interrupt: host controller halted
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On Wednesday 25 November 2009 19:21:43 Bukin Ruslan wrote:
> On Wed, Nov 25, 2009 at 06:55:57PM +0100, Hans Petter Selasky wrote:
> > On Wednesday 25 November 2009 18:08:32 Bukin Ruslan wrote:
> > > hello,
> > >
> > > i have about 1000 UHCI_STS_HCH intrr per second:
> > >
> > >
> > >
> > > is this normal?
> >
> > No, it is not normal. Maybe this happens because the interrupt line is
> > shared. What does vmstat -i say?
> >
> > --HPS
>
> #vmstat -i
> interrupt                          total       rate
> irq1: atkbd0                        3527          6
> irq9: acpi0                          741          1
> irq16: uhci2+                      82402        150
> irq20: uhci0                          13          0
> irq21: uhci1                        3303          6
> irq22: ehci0                           3          0
> cpu0: timer                      1090324       1996
> irq256: em0                         3514          6
> irq257: hdac0                      72093        132
> cpu1: timer                      1090197       1996
> irq258: vgapci0                     4535          8
> Total                            2350652       4305

Hi,

There should be some code so that the UHCI only prints this message once. 
Thought it looks like the IRQ is shared so the message is printed multiple 
times.

--HPS