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