Andrew Morton wrote:
> On Sat, 22 Jul 2006 13:12:37 +0100
> Ian Stirling <tandra@mauve.plus.com> wrote:
> 
> 
>>Config/... as my earlier message on USB - though with the bandwidth 
>>enforcement
>>turned off so it actually plays sound, when plugged into the USB1 port.
>>
>>2.6.17.
>>
>>Basically - playing sound with
>>mplayer -ao alsa:device=hw=1 or whatever - and then unplugging the
>>soundcard completely wedges lsusb/usb configuration, until the mplayer 
>>process is killed.
>>
>>cat /proc/bus/usb/devices stalls.
> 
> 
> Please get the machine into the wedged state, then do
> 
> 	dmesg -c
> 	echo t > /proc/sysrq-trigger
> 	dmesg -s 1000000 > foo
> 
> then send foo, thanks.