freebsd-dev/sys/ufs/ffs
Julian Elischer 3f6f17ee1e Submitted by: Archie and me.
We encountered an interesting situation where the superblock for
a file system got written to disk with the "fs_fmod" flag set to
one. It appears that this flag is normally supposed to be cleared
during ffs_sync(), but we experienced a crash, or some other weird
occurrence that left it on the disk set to 1.

Later this partition was mounted read-only... and the fs_fmod
field was never cleared, causing ffs_sync() to panic "rofs mod"
when trying to unmount that filesystem (ffs_vfsops.c: line 790).

fix:
set this bit to 0 when you load the superblock from disk.
(see more complete mail on this to hackers)
1996-11-13 01:45:56 +00:00
..
ffs_alloc.c Argh, I have had one "uid 0 on /: file system full" too many. The problem 1996-09-17 14:38:16 +00:00
ffs_balloc.c Eliminated many redundant vm_map_lookup operations for vm_mmap. 1996-01-19 04:00:31 +00:00
ffs_extern.h Removed bogus _BEGIN_DECLS/_END_DECLS. 1996-05-01 02:16:17 +00:00
ffs_inode.c Eliminate an unnecessary synchronous write (and an 8K bcopy+bzero) when 1996-11-05 08:19:40 +00:00
ffs_subr.c Convert DDB to new-style option. 1996-01-04 21:13:23 +00:00
ffs_tables.c Staticize. 1995-12-17 21:14:36 +00:00
ffs_vfsops.c Submitted by: Archie and me. 1996-11-13 01:45:56 +00:00
ffs_vnops.c Staticize. 1995-12-17 21:14:36 +00:00
fs.h Fixed lblktosize(). It overflowed at 2G. This bug only affected 1996-10-12 22:12:51 +00:00