diff -rup linux/fs/reiserfs/inode.c linux.patched/fs/reiserfs/inode.c
--- linux/fs/reiserfs/inode.c Tue Nov 13 16:01:31 2001
+++ linux.patched/fs/reiserfs/inode.c Tue Nov 13 16:12:12 2001
@@ -1138,6 +1138,26 @@ void reiserfs_read_inode2 (struct inode
}
init_inode (inode, &path_to_sd);
+
+ /* It is possible that knfsd is trying to access inode of a file
+ that is being removed from the disk by some other thread. As we
+ update sd on unlink all that is required is to check for nlink
+ here. This bug was first found by Sizif when debugging
+ SquidNG/Butterfly, forgotten, and found again after Philippe
+ Gramoulle <
[email protected]> reproduced it.
+
+ More logical fix would require changes in fs/inode.c:iput() to
+ remove inode from hash-table _after_ fs cleaned disk stuff up and
+ in iget() to return NULL if I_FREEING inode is found in
+ hash-table. */
+ if( inode -> i_nlink == 0 ) {
+ reiserfs_warning( "vs-13075: reiserfs_read_inode2: "
+ "dead inode read from disk %K. "
+ "This is likely to be race with knfsd. Ignore\n",
+ &key );
+ make_bad_inode( inode );
+ }
+
reiserfs_check_path(&path_to_sd) ; /* init inode should be relsing */
}
