Date: Tue, 7 Aug 2007 17:27:29 +0200 From: Olivier Houchard <mlfbsd@ci0.org> To: ticso@cicely.de Cc: freebsd-arm@freebsd.org Subject: Re: Kernel panic on usb disconnect? Message-ID: <20070807152729.GA60139@ci0.org> In-Reply-To: <20070807145240.GC41893@cicely12.cicely.de> References: <46B85F61.1050008@bulinfo.net> <20070807130429.GB41893@cicely12.cicely.de> <46B87129.1060800@bulinfo.net> <20070807145240.GC41893@cicely12.cicely.de>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, Aug 07, 2007 at 04:52:41PM +0200, Bernd Walter wrote: > On Tue, Aug 07, 2007 at 04:18:33PM +0300, Krassimir Slavchev wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > > Hash: SHA1 > > > > Bernd Walter wrote: > > > On Tue, Aug 07, 2007 at 03:02:41PM +0300, Krassimir Slavchev wrote: > > >> -----BEGIN PGP SIGNED MESSAGE----- > > >> Hash: SHA1 > > >> > > >> This is on at91rm9200 with latest -current > > >> > > >> On connect: > > >> > > >> umass0: <Corsair Flash Voyager, class 0/0, rev 2.00/11.00, addr 2> on uhub0 > > >> umass0: SCSI over Bulk-Only; quirks = 0x0000 > > >> umass0:0:0:-1: Attached to scbus0 > > >> Expensive timeout(9) function: 0xc00357f0(0xc07e6c00) 0.002746582 s > > >> > > >> On disconnect: > > >> > > >> umass0: BBB reset failed, IOERROR > > >> umass0: at uhub0 port 1 (addr 2) disconnected > > > > > > This problem is not arm specific. > > > You have to unmount umass devices befor you can disconnect them. > > > > > > > Yes, I know, the device is not mounted. Unfortunately I can't reproduce > > this on i386. > > My fault - I saw the XPT and assumed it was still mounted. > But is it Ok that badaddr_read panics? > I though it is there to tamper with possible dangerous addresses. > Actually the backtrace is not accurate, because the symbol table isn't loaded. You can still use gdb to know what badaddr_read+0x1f4 really is. Also, you'll note the badaddr_read call happens after the trap occurs (data_abort_handler). Regards, Olivier
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20070807152729.GA60139>