Date: Tue, 19 May 2009 20:21:22 +0200 From: Lucius Windschuh <lwindschuh@googlemail.com> To: Weongyo Jeong <weongyo@freebsd.org>, freebsd-current@freebsd.org, Hans Petter Selasky <hselasky@c2i.net> Subject: Re: Panics and potential memory corruption when pulling out a uath device Message-ID: <90a5caac0905191121r7da4f6e8t733eff327cf551e0@mail.gmail.com> In-Reply-To: <20090519044941.GC42412@weongyo.cdnetworks.kr> References: <90a5caac0905171354k6e7c008eye18bd69aa543eaa6@mail.gmail.com> <200905181050.03154.hselasky@c2i.net> <90a5caac0905181508m7024377as8d70c89694a21e26@mail.gmail.com> <20090519044941.GC42412@weongyo.cdnetworks.kr>
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2009/5/19 Weongyo Jeong <weongyo.jeong@gmail.com>: > On Tue, May 19, 2009 at 12:08:45AM +0200, Lucius Windschuh wrote: >> 2009/5/18 Hans Petter Selasky <hselasky@c2i.net>: >> > Regarding the first panic, there seems to be a detach race in both upg= t and >> > uath, which is not USB related. Try this patch: >> > >> > http://perforce.freebsd.org/chv.cgi?CH=3D162250 >> >> 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? =A0It try to unsetup after stopping the device. > > If no problems I'd commit it. This works also. I cannot produce panics with it. Lucius
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