geom_mirror panic with pair of firewire disc

[Pawel Jakub Dawidek]

On Sun, Jan 30, 2005 at 11:21:13PM +0000, Nicolai E M Plum wrote:
+> Pawel Jakub Dawidek wrote:
+> > On Tue, Jan 18, 2005 at 02:33:41AM +0000, Nicolai E M Plum wrote:
+> 
+> > +> and on the console:
+> > +>=20
+> > +> Fatal double fault:
+> > +> eip =3D 0xc07a4acd
+> > +> esp =3D 0xd4226000
+> > +> ebp =3D 0xd4226014
+> > +> panic: double fault
+> > +> Uptime: 2h45m29s
+> 
+> > Could you get for me output of:
+> 
+> > 	# objdump -d -l `find /usr/obj/ -type f -name kernel.debug` | grep -5 ^c07a4acd:
+> 
+> (sorry about the delay, I've been away from this machine in the mean time)
+> 
+> I had to recompile the kernel to get a kernel.debug file, so the addresses in
+> the panic message have changed to:
+> 
+> Fatal double fault:
+> eip = 0xc0867e2b
+> esp = 0xd4225fd8
+> ebp = 0xd4226010
+> panic = double fault
+> 
+> So, using the new value of eip, I get this from objdump:
+> 
+> # objdump -d -l `find /usr/obj/ -type f -name kernel.debug` | grep -5 ^c0867e2b:
+> c0867e1f:       8b 5d 08                mov    0x8(%ebp),%ebx
+> c0867e22:       8b 55 0c                mov    0xc(%ebp),%edx
+> c0867e25:       8b 7d 18                mov    0x18(%ebp),%edi
+> c0867e28:       8b 75 1c                mov    0x1c(%ebp),%esi
+> /usr/src/sys/i386/i386/busdma_machdep.c:649
+> c0867e2b:       c7 45 ec 00 00 00 00    movl   $0x0,0xffffffec(%ebp)
+> /usr/src/sys/i386/i386/busdma_machdep.c:650
+> c0867e32:       c7 45 f0 00 00 00 00    movl   $0x0,0xfffffff0(%ebp)
+> /usr/src/sys/i386/i386/busdma_machdep.c:652
+> c0867e39:       85 d2                   test   %edx,%edx
+> c0867e3b:       74 06                   je     c0867e43  <bus_dmamap_load+0x33>
+> 
+> Is that any use?

Maybe. Could you give me also output of:

	grep '$FreeBSD:' /usr/src/sys/i386/i386/busdma_machdep.c

-- 
Pawel Jakub Dawidek                       http://www.wheel.pl
pjd at FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!
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