From mboxrd@z Thu Jan 1 00:00:00 1970 From: Josef Bacik Subject: Re: kernel BUG at fs/btrfs/inode.c:149! Date: Mon, 23 May 2011 15:51:57 -0400 Message-ID: <4DDABADD.7090209@redhat.com> References: <201105051954.48405.whirm@gmx.com> <201105161701.11645.truewhirm@yahoo.es> <4DD150C1.2090505@redhat.com> <201105231357.41588.whirm@gmx.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Cc: linux-btrfs To: Elric Milon Return-path: In-Reply-To: <201105231357.41588.whirm@gmx.com> List-ID: On 05/23/2011 07:57 AM, Elric Milon wrote: > On Monday 16 May 2011 18:28:49 you wrote: >> On 05/16/2011 11:01 AM, Whirm wrote: >>> On Monday 16 May 2011 16:11:19 Josef Bacik wrote: > >>> >>> Sorry yes, I meant this is how I managed to get the corrupted filesystem. >>> >>> Ill try to break it again. >> >> Oh ok perfect, yeah I will try and do the same sort of things and see if >> I can get it to happen as well. Thanks, > > Great, btw, I tried to see if I can mount the corrupted filesystem with > the patch you told me about applied, and it fails, here's the log: > > http://pastebin.com/raw.php?i=4Kfv927B > > That happens using 2.6.39-rc7+ from git with the following patch applied (its > the debug patch and the possible fix you told me about): > Ok so this is a different kind of corruption, wooo! Can you apply this debug patch and get me the output so we can try and fix this bit? Thanks, Josef diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index cd5e82e..54a8df5 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -365,6 +365,9 @@ next_slot: extent_end = key.offset + btrfs_file_extent_inline_len(leaf, fi); } else { + printk(KERN_ERR "Weird entry at slot=%d, type=%lu\n", + path->slots[0], extent_type); + btrfs_print_leaf(root, leaf); WARN_ON(1); extent_end = search_start; } diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index dc8fb2b..f951053 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -145,6 +145,9 @@ static noinline int insert_inline_extent(struct btrfs_trans_handle *trans, inode_add_bytes(inode, size); ret = btrfs_insert_empty_item(trans, root, path, &key, datasize); + if (ret) + printk(KERN_ERR "ret=%d, inode=%d, start=%llu, size=%llu\n", + ret, inode->i_ino, start, size); BUG_ON(ret); if (ret) { err = ret;