usbconfig reset ugen4.2 hanging since an hour

Alexander Leidinger Alexander at Leidinger.net
Tue Nov 2 12:14:16 UTC 2010


Quoting Hans Petter Selasky <hselasky at freebsd.org> (from Tue, 2 Nov  
2010 13:00:54 +0100):

> On Tuesday 02 November 2010 11:01:34 Alexander Leidinger wrote:
>> # procstat -kk 29213
>>    PID    TID COMM             TDNAME           KSTACK
>> 29213 100291 usbconfig        -                mi_switch+0x188
>> sleepq_switch+0x13c sleepq_timedwait+0x40 _sleep+0x320 pause+0x30
>> usb_pause_mtx+0x94 usb_ioctl+0x171 devfs_ioctl_f+0x73 kern_ioctl+0x9d
>> ioctl+0xc5 syscallenter+0x1af syscall+0x34 Xint0x80_syscall+0x21
>>
>> > somewhere in umass_detach(), which is preventing the usbconfig reset from
>>
>> No umass_detach in there...
>
> Hi,
>
> The USB threads are joined into a single process and not visible from "ps".

Is there a special reason why it is not visible?

Bye,
Alexander.

-- 
Killing is wrong.
		-- Losira, "That Which Survives", stardate unknown

http://www.Leidinger.net    Alexander @ Leidinger.net: PGP ID = B0063FE7
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