On Thu, Oct 14, 2010 at 12:33:34AM +0200, ??????? ??????? wrote:
quoted text
> On Thu, Oct 14, 2010 at 12:01 AM, Jacob Meuser <jakemsr@sdf.lonestar.org>
> wrote:
> > On Wed, Oct 13, 2010 at 09:32:59PM +0200, ??????? ??????? wrote:
> >> % ps -akx | grep usb
> >> B  B  8 ?? B DK B  B  B 0:00.26 (usbtask)
> >> 24889 p1 B S+ B  B  B 0:00.01 grep usb
> >
> > is that while the urtw is causing problems? B maybe try
> > 'top -S -n200 | grep usb' too.
> 
> After inserting a usb device (3COM WiFi adapter mentioned in the first
> mail) I get no notice on dmesg and following:
> 
> % ps -akx | grep usb
>     8 ??  DK      0:00.26 (usbtask)
>  7243 p1  S+      0:00.01 grep usb
> % top -S -n 200 | grep usb
>     8 root      -6    0    0K   19M idle      usbsyn    0:00  0.00% usbtask

"usbsyn" - there's a synchronous usb transfer not finishing.  does this
recover (i.e. usbtask thread is not waiting in usbsyn) when you remove
the device?  does this happen with all usb devices?  does it happen in
all usb ports?

-- 
jakemsr@sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org