b=21364 debug patch

diff --git a/ldiskfs/kernel_patches/patches/ext4-bug21364-debug.patch b/ldiskfs/kernel_patches/patches/ext4-bug21364-debug.patch
new file mode 100644 (file)
index 0000000..6406b2d
--- /dev/null
+++ b/ldiskfs/kernel_patches/patches/ext4-bug21364-debug.patch
@@ -0,0 +1,13 @@
+Index: linux-stage/fs/ext4/inode.c
+===================================================================
+--- linux-stage.orig/fs/ext4/inode.c
++++ linux-stage/fs/ext4/inode.c
+@@ -4145,6 +4145,8 @@ struct inode *ext4_iget(struct super_blo
+               if (inode->i_mode == 0 ||
+                   !(EXT4_SB(inode->i_sb)->s_mount_state & EXT4_ORPHAN_FS)) {
+                       /* this inode is deleted */
++                      printk("ext4_iget() returns ESTALE for inode %lu (%p)"
++                             "\n", ino, inode);
+                       brelse(bh);
+                       ret = -ESTALE;
+                       goto bad_inode;

diff --git a/ldiskfs/kernel_patches/series/ldiskfs-2.6-sles11.series b/ldiskfs/kernel_patches/series/ldiskfs-2.6-sles11.series
index bcf9753..b6c989b 100644 (file)
--- a/ldiskfs/kernel_patches/series/ldiskfs-2.6-sles11.series
+++ b/ldiskfs/kernel_patches/series/ldiskfs-2.6-sles11.series
@@ -33,3 +33,4 @@ ext4-dynlocks-common-sles11.patch
 ext4-dynlocks-2.6-rhel5.patch
 ext4-hash-indexed-dir-dotdot-update.patch
 ext4-disable-write-bar-by-default.patch
+ext4-bug21364-debug.patch

diff --git a/lustre/obdfilter/filter.c b/lustre/obdfilter/filter.c
index 86a7f5f..a12a632 100644 (file)
--- a/lustre/obdfilter/filter.c
+++ b/lustre/obdfilter/filter.c
@@ -1433,8 +1433,9 @@ struct dentry *filter_fid2dentry(struct obd_device *obd,
         if (dir_dentry == NULL)
                 filter_parent_unlock(dparent);
         if (IS_ERR(dchild)) {
-                CERROR("%s: child lookup error %ld\n", obd->obd_name,
-                       PTR_ERR(dchild));
+                CERROR("%s: child lookup error for object O/%.*s/%s (%ld)\n",
+                       obd->obd_name, dparent->d_name.len, dparent->d_name.name,
+                       name, PTR_ERR(dchild));
                 RETURN(dchild);
         }
 
@@ -3353,6 +3354,10 @@ static int filter_precreate(struct obd_device *obd, struct obdo *oa,
                 cleanup_phase = 1;      /* filter_parent_unlock(dparent) */
 
                 dchild = filter_fid2dentry(obd, dparent, group, next_id);
+                if (IS_ERR(dchild) && PTR_ERR(dchild) == -ESTALE) {
+                        CERROR("parent %p child %p\n", dparent, dchild);
+                        LBUG();
+                }
                 if (IS_ERR(dchild))
                         GOTO(cleanup, rc = PTR_ERR(dchild));
                 cleanup_phase = 2;      /* f_dput(dchild) */