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From: Hans Petter Selasky <hselasky@c2i.net>
To: freebsd-usb@freebsd.org,
 alfred@freebsd.org
Date: Sat, 15 Aug 2009 12:35:55 +0200
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Cc: MIHIRA Sanpei Yoshiro <sanpei@sanpei.org>
Subject: Re: [8-current] kernel panic at boot time with some USB device
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On Saturday 15 August 2009 11:44:51 MIHIRA Sanpei Yoshiro wrote:
> Hi.
>
> I tested 8-current(csup's at 2009.08.15.00.00.00).
>
> kernel panic at boot time with some USB device.
>
> ugen0.2: <C-Media Electronics Inc.> at usbus0
> uaudio0: <C-Media Electronics Inc. USB PnP Audio Device, class 0/0, rev
> 1.10/1.00, addr 2> on usbus0 panic: lock (sleep mutex) Giant not locked @
> /usr/src-8-2/sys/dev/usb/usb_request.c:312 cpuid = 0
> KDB: enter:panic
> [thread pid 16 tid 100036 ]
> Stpped at kdb_enter+0x3a: movl $0, kdb_why
>

Hi,

This issue should have been solved, but it looks like not committed to 8-
current yet.

Try fetching latest uaudio.c from USB P4:

http://perforce.freebsd.org/chv.cgi?CH=167030
http://perforce.freebsd.org/chv.cgi?CH=167032

--HPS