umass causes panic on 7 amd64

Roland Smith rsmith at xs4all.nl
Tue May 13 06:32:21 UTC 2008


On Mon, May 12, 2008 at 04:19:27PM -0700, Steve Franks wrote:
> On Mon, May 12, 2008 at 3:50 PM, Roland Smith <rsmith at xs4all.nl> wrote:
> > On Mon, May 12, 2008 at 01:38:51PM -0700, Steve Franks wrote:
> >  > I have added options USB DEBUG to my kernconf file ("DYSTANT").  Here
> >  > is the backtrace:
> >  >
> >  > Steve
> >  >
> >  > [steve at dystant /usr/obj/usr/src/sys/DYSTANT]$ sudo kgdb kernel.debug
> >  > /var/crash/vmcore.6
> >  > [GDB will not be able to debug user-mode threads:
> >  > /usr/lib/libthread_db.so: Undefined symbol "ps_pglobal_lookup"]
> >  > GNU gdb 6.1.1 [FreeBSD]
> >  > Copyright 2004 Free Software Foundation, Inc.
> >  > GDB is free software, covered by the GNU General Public License, and you are
> >  > welcome to change it and/or distribute copies of it under certain conditions.
> >  > Type "show copying" to see the conditions.
> >  > There is absolutely no warranty for GDB.  Type "show warranty" for details.
> >  > This GDB was configured as "amd64-marcel-freebsd".
> >  >
> >  > Unread portion of the kernel message buffer:
> >  > umass0: <OLYMPUS C-700 Ultra Zoom, class 0/0, rev 1.10/1.00, addr 3> on uhub2
> >  > umass0: SCSI over (unknown 0x00); quirks = 0x0100
> >  > panic: /usr/src/sys/dev/usb/umass.c:1453: Unknown proto 0x100
> >
> >  It looks like the camera is not returning a wire protocol.
> >  You definitely need to take this to the -usb list.
> 
> Still shouldn't cause a panic, should it?

Yes it should. It calls the 'panic' function.

Roland
-- 
R.F.Smith                                   http://www.xs4all.nl/~rsmith/
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