search for: __btrfs_write_out_cache

...my HP Compaq dc5800 with Ubuntu 13.04 and their 3.8.0-19-lowlatency kernel, I''ve got quite some kernel traces in the syslog. You can find them below or at http://pastebin.com/bLXPBX67 (to avoid line breaks…). These kernel traces all begin with: WARNING: at fs/btrfs/free-space-cache.c:921 __btrfs_write_out_cache+0x6b9/0x9a0 [btrfs]() Most of the time, it starts with: Call Trace: [<ffffffff8105a8df>] warn_slowpath_common+0x7f/0xc0 But once, I also had: Call Trace: [<ffffffff81138e59>] warn_alloc_failed+0xe9/0x140 It happens most of the time, when I copied something on a btrfs. But it a...

...[btrfs] [36700.671680] [<ffffffff81066760>] ? add_wait_queue+0x60/0x60 [36700.671685] [<ffffffffa0582829>] btrfs_search_slot+0x999/0xb00 [btrfs] [36700.671691] [<ffffffffa05bd9de>] ? btrfs_lookup_first_ordered_extent+0x5e/0xb0 [btrfs] [36700.671698] [<ffffffffa05e3e54>] __btrfs_write_out_cache+0x8c4/0xa80 [btrfs] [36700.671704] [<ffffffffa05e4362>] btrfs_write_out_cache+0xb2/0xf0 [btrfs] [36700.671710] [<ffffffffa05c4441>] ? free_extent_buffer+0x61/0xc0 [btrfs] [36700.671716] [<ffffffffa0594c82>] btrfs_write_dirty_block_groups+0x562/0x650 [btrfs] [36700.671723] [&lt...

The biggest one is a fix for fstrim, and there''s a fix for on-disk free space cache. Others are small fixes and cleanups. The last three have been sent weeks ago. The patchset is also available in this repo: git://repo.or.cz/linux-btrfs-devel.git for-chris Note there''s a small confict with Al Viro''s vfs changes. Li Zefan (11): Btrfs: add pinned extents to

...+0x80/0x90 [ 469.037851] [<ffffffff8107f660>] ? autoremove_wake_function+0x50/0x50 [ 469.037858] [<ffffffff8112af21>] filemap_fdatawait_range+0x101/0x190 [ 469.037889] [<ffffffffa057e4d8>] btrfs_wait_ordered_range+0x68/0x120 [btrfs] [ 469.037919] [<ffffffffa059f412>] __btrfs_write_out_cache+0x772/0x990 [btrfs] [ 469.037942] [<ffffffffa05573ce>] ? run_clustered_refs+0x1be/0xb50 [btrfs] [ 469.037972] [<ffffffffa05a5278>] ? btrfs_find_ref_cluster+0x68/0x170 [btrfs] [ 469.037999] [<ffffffffa059f6e1>] btrfs_write_out_cache+0xb1/0xf0 [btrfs] [ 469.038021] [<ffff...

Hi all - The following 9 patches add more error handling to the btrfs code: - Add btrfs_panic - Catch locking failures in {set,clear}_extent_bit - Push up set_extent_bit errors to callers - Push up lock_extent errors to callers - Push up clear_extent_bit errors to callers - Push up unlock_extent errors to callers - Make pin_down_extent return void - Push up btrfs_pin_extent errors to

...te_range+0x5b/0x60 Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffff8111b2af>] filemap_fdatawrite+0x1f/0x30 Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffff8111b2f5>] filemap_write_and_wait+0x35/0x60 Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa053ad2f>] __btrfs_write_out_cache+0x6cf/0x950 [btrfs] Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffff816606be>] ? _raw_spin_lock+0xe/0x20 Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa053b069>] btrfs_write_out_cache+0xb9/0xf0 [btrfs] Aug 4 02:26:06 rohan kernel: [ 3878.951105] [<ffffffffa04f4424...

...+ if (ret) + goto out; } else { if (ordered) btrfs_put_ordered_extent(ordered); diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 7fd48df..fa776bb 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -1010,8 +1010,13 @@ static int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode, if (ret) goto out; - - btrfs_wait_ordered_range(inode, 0, (u64)-1); + ret = btrfs_wait_ordered_range(inode, 0, (u64)-1); + if (ret) { + clear_extent_bit(&BTRFS_I(inode)->io_tree, 0, inode->i_size - 1, + EXTENT_DIRTY | EXTENT_DELALL...

...gt;] do_writepages+0x22/0x50 [ 153.916315] [<ffffffff8110d5fb>] __filemap_fdatawrite_range+0x5b/0x60 [ 153.916315] [<ffffffff8110d61f>] filemap_fdatawrite+0x1f/0x30 [ 153.920013] [<ffffffff8110d665>] filemap_write_and_wait+0x35/0x60 [ 153.920013] [<ffffffffa01cf622>] __btrfs_write_out_cache+0x792/0x9a0 [btrfs] [ 153.920013] [<ffffffffa0175b25>] ? __find_space_info+0x85/0xa0 [btrfs] [ 153.920013] [<ffffffffa017f28b>] ? btrfs_run_delayed_refs+0x1cb/0x450 [btrfs] [ 153.920013] [<ffffffffa01cf8c5>] btrfs_write_out_cache+0x95/0xf0 [btrfs] [ 153.920013] [<ffffff...

...s+0x1e/0x40 [ 68.128014] [<ffffffff81123669>] __filemap_fdatawrite_range+0x59/0x60 [ 68.128048] [<ffffffff81123733>] filemap_fdatawrite_range+0x13/0x20 [ 68.128090] [<ffffffffa0481c99>] btrfs_wait_ordered_range+0x49/0x110 [btrfs] [ 68.128135] [<ffffffffa04a64c0>] __btrfs_write_out_cache+0x6d0/0x8f0 [btrfs] [ 68.128180] [<ffffffffa04a774d>] btrfs_write_out_cache+0x8d/0xe0 [btrfs] [ 68.128224] [<ffffffffa0459983>] btrfs_write_dirty_block_groups+0x533/0x620 [btrfs] [ 68.128271] [<ffffffffa04676e2>] commit_cowonly_roots+0x172/0x260 [btrfs] [ 68.128314] [&...

Hi all - Here''s my current error handling patchset, against 3.1-rc8. Almost all of this patchset is preparing for actual error handling. Before we start in on that work, I''m trying to reduce the surface we need to worry about. It turns out that there is a ton of code that returns an error code but never actually reports an error. The patchset has grown to 65 patches. 46 of them

...ges << PAGE_CACHE_SHIFT); + copied); btrfs_drop_pages(pages, num_pages); break; } diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 59ea2e4..1c0e254 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -960,6 +960,8 @@ int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode, if (block_group) start = block_group->key.objectid; + else // Hmm I don''t recall putting this here. + start = (u64)-1; while (block_group && (start < block_group->key.objectid + block_group->key.offset...