ufs2 fails to mount on x86_64, claiming bad magic. This is because
ufs_super_block_third's fs_un1 member is padded out by 4 bytes for
8-byte alignment, pushing down the rest of the struct.
Forcing this to be packed solves it. I took a quick look over
other on-disk structures and didn't immediately find other problems.
I was able to mount & ls a populated ufs2 filesystem w/ this change.
Thanks,
-Eric
Signed-off-by: Eric Sandeen <[email protected]>
Index: linux-2.6.18/include/linux/ufs_fs.h
===================================================================
--- linux-2.6.18.orig/include/linux/ufs_fs.h
+++ linux-2.6.18/include/linux/ufs_fs.h
@@ -900,7 +900,7 @@ struct ufs_super_block_third {
__fs64 fs_csaddr; /* blk addr of cyl grp summary area */
__fs64 fs_pendingblocks;/* blocks in process of being freed */
__fs32 fs_pendinginodes;/*inodes in process of being freed */
- } fs_u2;
+ } __attribute__ ((packed)) fs_u2;
} fs_un1;
union {
struct {
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
