Date: Sat, 2 Jan 2010 21:43:35 +0100 From: Hans Petter Selasky <hselasky@c2i.net> To: freebsd-usb@freebsd.org Cc: freebsd-bugs@freebsd.org, linimon@freebsd.org Subject: Re: usb/142229: [ums] [hang] connecting a USB mouse to a Dell PE750 locks up kernel Message-ID: <201001022143.36274.hselasky@c2i.net> In-Reply-To: <201001021726.o02HQ49K008704@freefall.freebsd.org> References: <201001021726.o02HQ49K008704@freefall.freebsd.org>
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On Saturday 02 January 2010 18:26:04 linimon@freebsd.org wrote: > Old Synopsis: connecting a USB mouse to a Dell PE750 locks up kernel > New Synopsis: [ums] [hang] connecting a USB mouse to a Dell PE750 locks up > kernel > > Responsible-Changed-From-To: freebsd-bugs->freebsd-usb > Responsible-Changed-By: linimon > Responsible-Changed-When: Sat Jan 2 17:25:40 UTC 2010 > Responsible-Changed-Why: > Over to maintainer(s). Hi, Can you enable USB debugging before plugging the mouse: sysctl hw.usb.debug=15 sysctl hw.usb.ums.debug=15 Have you tried to disable legacy USB support in the BIOS? You can also try to press CTRL+ALT+ESC and if the KDB prompt appears, enter "bt". Does the kernel also hang when the mouse module (device ums, ums.ko) is not compiled into the kernel? --HPS
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