usb/156725: USB stack stall cause complete system input loss

[Hans Petter Selasky]

The following reply was made to PR usb/156725; it has been noted by GNATS.

From: Hans Petter Selasky <hselasky at c2i.net>
To: freebsd-usb at freebsd.org,
 FreeBSD-gnats-submit at freebsd.org
Cc: linimon at freebsd.org,
 freebsd-amd64 at freebsd.org
Subject: Re: usb/156725: USB stack stall cause complete system input loss
Date: Mon, 2 May 2011 08:28:48 +0200

 On Monday 02 May 2011 02:26:29 linimon at 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