grub-setup Segmentation fault

[Magnus Granberg]

Hi
I'am geting segmentation fault wen i try to run 
grub-setup --directory=/boot/grub --device-map=/boot/grub/device.map 
/dev/md0
on a Raid5 -> Lvm setup.
Grub with the latest cvs on a gentoo 2007.0 amd64 multilib system.
Raid5 setup 3x250Gb
mdadm -D /dev/md0
/dev/md0:
       Version : 01.00.03
 Creation Time : Thu Aug  2 16:35:06 2007
    Raid Level : raid5
    Array Size : 19534848 (18.63 GiB 20.00 GB)
 Used Dev Size : 19534848 (9.31 GiB 10.00 GB)
  Raid Devices : 3
 Total Devices : 3
Preferred Minor : 0
   Persistence : Superblock is persistent

   Update Time : Sat Aug  4 04:11:19 2007
         State : clean
Active Devices : 3
Working Devices : 3
Failed Devices : 0
 Spare Devices : 0

        Layout : left-symmetric
    Chunk Size : 64K

          Name : 0
          UUID : 32287a37:5051c044:750bc197:0802540a
        Events : 2

   Number   Major   Minor   RaidDevice State
      0       8        1        0      active sync   /dev/sda1
      1       8       17        1      active sync   /dev/sdb1
      3       8       33        2      active sync   /dev/sdc1
Device.map
livecd ~ # cat /boot/grub/device.map
(hd0)   /dev/md0
(hd1)   /dev/md0
(hd2)   /dev/md0
(hd3)   /dev/sdd

livecd ~ # gdb --args 
grub-setup --directory=/boot/grub --device-map=/boot/grub/device.map 
/dev/md0
GNU gdb 6.6
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GDB is free software, covered by the GNU General Public License, and you are
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This GDB was configured as "x86_64-pc-linux-gnu"...
Using host libthread_db library "/lib/libthread_db.so.1".
(gdb) run
Starting program: 
/sbin/grub-setup --directory=/boot/grub --device-map=/boot/grub/device.map 
/dev/md0

Program received signal SIGSEGV, Segmentation fault.
grub_device_open (name=0x0) at kern/device.c:38
38            if (*name == '\0')
(gdb) bt
#0  grub_device_open (name=0x0) at kern/device.c:38
#1  0x08049385 in setup (prefix=0x80670b0 "(md0)(vg-boot)/grub", 
dir=0x8067008 "/boot/grub",
   boot_file=<value optimized out>, core_file=0x805cb2a "core.img", 
root=0x8067050 "vg-boot", dest=0x0, must_embed=1)
   at util/i386/pc/grub-setup.c:223
#2  0x0804a0bc in main (argc=Cannot access memory at address 0xb
) at util/i386/pc/grub-setup.c:733
(gdb)

for trace lock in the logfile

/Magnus

strace grub-setup.log
Description: Binary data