Date: Mon, 29 Sep 2008 20:13:39 +0200 From: Henrik Friedrichsen <henrik@50hz.ws> To: FreeBSD stable <freebsd-stable@freebsd.org> Subject: Re: USB detach/attach hangs with 7.0-RELEASE and 7.1-PRERELEASE Message-ID: <20080929181339.GA12554@dsp.50hz.ws> In-Reply-To: <48E02557.2020303@incunabulum.net> References: <48E02557.2020303@incunabulum.net>
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On Mon, Sep 29, 2008 at 01:46:15AM +0100, Bruce M Simpson wrote: > Hi, > > I've noticed some general instability with plugging in or removing USB > devices with FreeBSD 7.x, even when the devices are not actively in use. > > I had this happen with umass and ucom devices 3 times today. The machine > hangs solid, there are no obvious signs of a panic or trap to DDB. I > can't provide backtraces unfortunately -- these hangs happen on both my > laptop and desktop, and I usually have X running -- if I had more > specific information, I'd open a PR. > > Again, there seems to be no reason why this should happen, the devices > are off-the-shelf consumer items known to work with existing drivers, > and have been repeatedly used in other OSes without these hangs > happening; consider this an "anecdotal report". > > [For some reason my IBM laptop will often not allow me to break into DDB > on a driver related panic, and will just immediately reboot -- I lack > free time to track down exactly why this could be. > My desktop has a USB keyboard and this appears not to be supported by > DDB, I ordered a PS/2 keyboard which hasn't arrived, but that's another > story.] > > thanks > BMS > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" Hey, I can confirm those problems, however I can't provide dumps either. I remember the kernel panicing with PAGE_FAULT errors though. Good to know, that I'm not the only one with those problems though. Henrik.
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