Description of problem:
When browsing list of indirect links for 200M+ file the gfs2_edit tool exits with segfault.

Version-Release number of selected component (if applicable):


How reproducible:
Create file with enough indirect links in it (enough > screen height). When browsing using pg-up and pg-down everything works as expected. But if you browse to the bottom using arrow keys and then go back by pg-up, on the last page the segfault occurs.

Steps to Reproduce:
1. Create file with so many indirect links that it fills up your screen in gfs2_edit
2. browse to the list (switch mode until you see directories/files) and jump to the file with enough links
3. go to the bottom using down key, go at the beginning using pg-up
  
Actual results:
segfault on last page

Expected results:
no segfault

Additional info:
Core was generated by `gfs2_edit /dev/sdc1'.
Program terminated with signal 11, Segmentation fault.
[New process 18903]
#0  0x400000000001b4b0 in display_indirect (ind=0x20000000003b4010, indblocks=120, level=0, startoff=0) at hexedit.c:1447
1447                    print_gfs2("0x%llx / %lld", ind->ii[pndx].block,
(gdb) bt full
#0  0x400000000001b4b0 in display_indirect (ind=0x20000000003b4010, indblocks=120, level=0, startoff=0) at hexedit.c:1447
        file_offset = 18446744073692807168
        start_line = 7
        total_dirents = 0
        i = 2
        cur_height = 0
        pndx = -7
        factor = {1, 511, 261121, 0, 0}
        offsets = {-8, 0, 0, 0, 0}
        __FUNCTION__ = "display_indirect"
#1  0x400000000001d990 in display_extended () at hexedit.c:1674
        tmp_inode = (struct gfs2_inode *) 0x6000000000004f88
        tmp_bh = (struct gfs2_buffer_head *) 0x60000fffffe1b6c0
#2  0x400000000001fce0 in display (identify_only=0) at hexedit.c:1897
        blk = 66222
        __FUNCTION__ = "display"
#3  0x4000000000026790 in interactive_mode () at hexedit.c:2636
        ch = 339
        Quit = 0
#4  0x400000000002f990 in main (argc=2, argv=0x60000fffffe1ba08) at hexedit.c:3507
        i = 256
        j = 3
        fd = 3
(gdb)
# rpm -q gfs2-utils
gfs2-utils-0.1.57-1.el5