Panics and potential memory corruption when pulling out a uath
weongyo.jeong at gmail.com
Wed May 20 03:50:05 UTC 2009
On Tue, May 19, 2009 at 08:21:22PM +0200, Lucius Windschuh wrote:
> 2009/5/19 Weongyo Jeong <weongyo.jeong at gmail.com>:
> > On Tue, May 19, 2009 at 12:08:45AM +0200, Lucius Windschuh wrote:
> >> 2009/5/18 Hans Petter Selasky <hselasky at c2i.net>:
> >> > Regarding the first panic, there seems to be a detach race in both upgt and
> >> > uath, which is not USB related. Try this patch:
> >> >
> >> > http://perforce.freebsd.org/chv.cgi?CH=162250
> >> This fixes not only the first panic.
> >> I can't provoke any panic by pulling out the active device. Thanks.
> > Could you please test with this patch that is slightly different with
> > Hans's patch? ?It try to unsetup after stopping the device.
> > If no problems I'd commit it.
> This works also. I cannot produce panics with it.
The patch is committed at r192419. Thanks you for reporting! :-)
More information about the freebsd-current