grub segfaults when running egrep output

grub_segfault (text/plain), 678 bytes, created by Fab on 2010-07-24 12:41:49 UTC

# grub_config=/boot/grub/grub.conf; egrep -v '^[[:space:]]*(#|$|default|fallback|initrd|password|splashimage|timeout|title)' "${grub_config}" | /sbin/grub --batch --device-map=/boot/grub/device.map


    GNU GRUB  version 0.97  (640K lower / 3072K upper memory)

 [ Minimal BASH-like line editing is supported.  For the first word, TAB
   lists possible command completions.  Anywhere else TAB lists the possible
   completions of a device/filename. ]
grub> root (hd0,0)
 Filesystem type is ext2fs, partition type 0x83
grub> kernel /boot/kernel-2.6.34-gentoo-r1 root=/dev/sda1 video=vesafb:mtrr:3,ywrap vga=792
   [Linux-bzImage, setup=0x2e00, size=0x339ba0]
Segmentation fault