On Mon, Nov 19, 2012 at 11:07:52AM -0200, Gustavo Padovan wrote:
> > can you please run
> > 'gdb fs/btrfs/btrfs.ko' and 'list *block_rsv_release_bytes+0x21' to
> > check which one is NULL pointer?
>
>
> (gdb) list *block_rsv_release_bytes+0x21
> 0xffffffff811a83c1 is in block_rsv_release_bytes
> (fs/btrfs/extent-tree.c:4065).
> 4060
> 4061 static void block_rsv_release_bytes(struct btrfs_fs_info *fs_info,
> 4062 struct btrfs_block_rsv *block_rsv,
> 4063 struct btrfs_block_rsv *dest, u64
> num_bytes)
> 4064 {
> 4065 struct btrfs_space_info *space_info = block_rsv->space_info;
> 4066
> 4067 spin_lock(&block_rsv->lock);
> 4068 if (num_bytes == (u64)-1)
> 4069 num_bytes = block_rsv->size;
> (gdb)
>
> Seems block_rsv is NULL here and looking to btrfs_block_rsv_release() it can
> only be NULL at this point if global_rsv->full is true otherwise the crash
> would happen there. I didn't go any further than this.
>
> Gustavo
Can you check if the following commit is in your tree?
commit 321f0e70225abc792d74902a2bc4a60164265fd4
Author: Miao Xie <mi...@cn.fujitsu.com>
Btrfs: fix wrong orphan count of the fs/file tree
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 878116d..a6824bd 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2228,7 +2228,7 @@ int btrfs_orphan_add(struct btrfs_trans_handle *trans,
struct inode *inode)
insert = 1;
#endif
insert = 1;
- atomic_dec(&root->orphan_inodes);
+ atomic_inc(&root->orphan_inodes);
}
if (!test_and_set_bit(BTRFS_INODE_ORPHAN_META_RESERVED,
thanks,
liubo
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