On Monday 02 May 2011 02:26:29 lini...@freebsd.org wrote:
> Synopsis: USB stack stall cause complete system input loss
> 
> Responsible-Changed-From-To: freebsd-amd64->freebsd-usb
> Responsible-Changed-By: linimon
> Responsible-Changed-When: Mon May 2 00:25:49 UTC 2011
> Responsible-Changed-Why:
> reclassify.
> 
> http://www.freebsd.org/cgi/query-pr.cgi?pr=156725

Hi,

All attach and detach methods are run from a single thread, the root HUB 
thread. If any device driver is blocking the detach routine for some reason, 
other devices on the same USB controller will be prevented from enumerating 
aswell.

--HPS
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