Re: current dom0 panic on domu launch

[Sarton O'Brien <bsd-xen%roguewrt.org@localhost>]

On 5/10/2009 11:45 PM, Christoph Egger wrote:
> rcx is 0, so this is a NULL-pointer dereference.
>
> What is the output of
>
>     gdb netbsd.gdb
>     (gdb) list *(0xffffffff805651f3)
>
> ?

gdb /usr/src/sys/arch/amd64/compile/obj/XEN3_DOM0/netbsd.gdb

(gdb) list *(0xffffffff805651f3)
0xffffffff805651f3 is in sdioctl (/usr/src/sys/dev/scsipi/sd.c:1191).
1186                     * XXX Do we really need to care about having a 
writable
1187                     * file descriptor here?
1188                     */
1189                    if ((flag & FWRITE) == 0)
1190                            return (EBADF);
1191                    if (((sd->flags & SDF_DIRTY) != 0 || *(int 
*)addr != 0)) {
1192                            error = sd_flush(sd, 0);
1193                            if (error)
1194                                    sd->flags &= ~SDF_FLUSHING;
1195                            else

Sarton