Hello,
Recently we've noticed that xfs_admin (xfs_db ver. 2.10.2) causes
segfault or FP traps while trying
to use following command on FAT partition:
# xfs_admin -u /dev/sda1
xfs_admin: unexpected XFS SB magic number 0xeb58906d
Floating point exception
and then makes error in dmesg:
xfs_db[10385] trap divide error ip:80b32b0 sp:fffbd900 error:0 in
xfs_db[8048000+7f000]
We know that xfs_admin is dedicated tool for XFS only not for FAT or
other filesystems,
but we would like to have xfs_db which will be able to cope with non-xfs
filesystems also.
After some investigations we've found some place and put there exit(1) -
in xfsprogs-2.10.2/db/init.c
in init() procedure:
(...)
sbp = &xmount.m_sb;
if (sbp->sb_magicnum != XFS_SB_MAGIC) {
fprintf(stderr, _("%s: unexpected XFS SB magic number
0x%08x\n"),
progname, sbp->sb_magicnum);
exit(1);
}
(...)
Is it the right way to fix this problem?
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