From: Liu Bo <bo.li.liu@oracle.com>
To: Mitch Harder <mitch.harder@sabayonlinux.org>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: [PATCH 1/2 v4] Btrfs: snapshot-aware defrag
Date: Tue, 30 Oct 2012 09:20:04 +0800 [thread overview]
Message-ID: <508F2B44.5090408@oracle.com> (raw)
In-Reply-To: <CAKcLGm_sWkwROKfYA_7cUt=kBSL_WWsoO7AegeCFG8GPczs2kw@mail.gmail.com>
On 10/30/2012 04:06 AM, Mitch Harder wrote:
> On Sat, Oct 27, 2012 at 5:28 AM, Liu Bo <bo.li.liu@oracle.com> wrote:
>> This comes from one of btrfs's project ideas,
>> As we defragment files, we break any sharing from other snapshots.
>> The balancing code will preserve the sharing, and defrag needs to grow this
>> as well.
>>
>> Now we're able to fill the blank with this patch, in which we make full use of
>> backref walking stuff.
>>
>> Here is the basic idea,
>> o set the writeback ranges started by defragment with flag EXTENT_DEFRAG
>> o at endio, after we finish updating fs tree, we use backref walking to find
>> all parents of the ranges and re-link them with the new COWed file layout by
>> adding corresponding backrefs.
>>
>> Originally patch by Li Zefan <lizf@cn.fujitsu.com>
>> Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
>> ---
>> v3->v4:
>> - fix duplicated refs bugs detected by mounting with autodefrag, thanks
>> for the bug report from Mitch and Chris.
>>
>
> I'm picking up many WARN_ON messages while testing this patch.
>
> I'm testing a snapshot script that uses kernel git sources along with
> some git manipulations.
>
> The kernel is a 3.6.4 kernel merged with the latest for-linus branch.
>
> I mounted with -o compress-force=lzo,autodefrag.
>
> I also have the second patch in this set (Btrfs: make snapshot-aware
> defrag as a mount option). However, I did not mount with
> 'snap_aware_defrag'.
>
> I did not find any corrupted data, and the partition passes a btrfsck
> without error after these warnings were observed.
>
Hi Mitch,
Well, good report, but I don't think it has anything to do with this patch(since you
didn't mount with 'snap_aware_defrag' :)
After going through the below messages, the bug comes from the space side where we
must have mis-used our reservation somehow.
So can you show me your script so that I can give it a shot to reproduce locally?
thanks,
liubo
> Here's a summary of the WARN_ON messages:
>
> $ cat local/dmesg-3.6.4-x+ | grep "WARNING:"
> [ 610.407561] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 610.407757] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 610.407929] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 661.211849] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 661.212004] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 661.212236] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 719.882942] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 719.883112] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 719.883232] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 786.978869] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 786.979003] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 786.979140] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 845.605176] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 845.605323] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 845.605445] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 912.300307] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 912.300454] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 912.300577] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 968.835873] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 968.836032] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 968.836156] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 1023.778160] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 1023.778316] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 1023.778435] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 1064.342768] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 1064.342914] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 1064.343112] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 1177.892047] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 1177.892189] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 1177.892312] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 1281.951715] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 1281.951857] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 1281.951978] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 1282.804376] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 1282.804524] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 1282.804645] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 1351.187114] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 1351.187263] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 1351.187391] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 1399.022919] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 1399.023086] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 1399.023206] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 1483.724756] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 1483.724895] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 1483.725031] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 1523.081643] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 1523.081792] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 1523.081922] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 1555.993160] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 1555.993299] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 1555.993420] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 1556.252181] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 1556.252312] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 1556.252427] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 1557.218561] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 1557.218691] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 1557.218805] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 1557.895069] WARNING: at fs/btrfs/extent-tree.c:4417
> btrfs_free_block_groups+0x2ad/0x34c [btrfs]()
> [ 1557.895261] WARNING: at fs/btrfs/extent-tree.c:4418
> btrfs_free_block_groups+0x347/0x34c [btrfs]()
> [ 1557.895435] WARNING: at fs/btrfs/extent-tree.c:7687
> btrfs_free_block_groups+0x23e/0x34c [btrfs]()
> [ 1557.895619] WARNING: at fs/btrfs/extent-tree.c:7687
> btrfs_free_block_groups+0x23e/0x34c [btrfs]()
>
> Here's a snip of the code that has the WARN_ONs in inode.c:
>
> void btrfs_destroy_inode(struct inode *inode)
> {
> struct btrfs_ordered_extent *ordered;
> struct btrfs_root *root = BTRFS_I(inode)->root;
>
> WARN_ON(!hlist_empty(&inode->i_dentry));
> WARN_ON(inode->i_data.nrpages);
> WARN_ON(BTRFS_I(inode)->outstanding_extents); // line 7779
> WARN_ON(BTRFS_I(inode)->reserved_extents); // line 7780
> WARN_ON(BTRFS_I(inode)->delalloc_bytes); // line 7781
> WARN_ON(BTRFS_I(inode)->csum_bytes); // line 7782
>
> Here's the dmesg output for just the last set of errors (the other
> WARN_ONs had similar backtraces):
>
> [ 1557.218529] ------------[ cut here ]------------
> [ 1557.218561] WARNING: at fs/btrfs/inode.c:7779
> btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]()
> [ 1557.218564] Hardware name: OptiPlex 745
> [ 1557.218566] Modules linked in: iTCO_wdt iTCO_vendor_support lpc_ich
> mfd_core xts gf128mul ablk_helper cryptd aes_x86_64 sha256_generic
> btrfs libcrc32c
> [ 1557.218582] Pid: 5728, comm: umount Tainted: G W 3.6.4-x+ #3
> [ 1557.218584] Call Trace:
> [ 1557.218592] [<ffffffff810350ea>] warn_slowpath_common+0x74/0xa2
> [ 1557.218596] [<ffffffff81035132>] warn_slowpath_null+0x1a/0x1c
> [ 1557.218612] [<ffffffffa00414c9>] btrfs_destroy_inode+0x2ac/0x2e6 [btrfs]
> [ 1557.218618] [<ffffffff8113ef00>] destroy_inode+0x3c/0x5f
> [ 1557.218622] [<ffffffff8113f045>] evict+0x122/0x1ac
> [ 1557.218626] [<ffffffff8113f619>] dispose_list+0x3a/0x49
> [ 1557.218629] [<ffffffff8113fd27>] evict_inodes+0x106/0x115
> [ 1557.218635] [<ffffffff81127c32>] generic_shutdown_super+0x4c/0xdc
> [ 1557.218639] [<ffffffff81127d44>] kill_anon_super+0x16/0x24
> [ 1557.218650] [<ffffffffa000ad48>] btrfs_kill_super+0x1a/0x8f [btrfs]
> [ 1557.218654] [<ffffffff81127f68>] deactivate_locked_super+0x34/0x5a
> [ 1557.218658] [<ffffffff81128b60>] deactivate_super+0x4e/0x66
> [ 1557.218663] [<ffffffff81142924>] mntput_no_expire+0xf7/0x14d
> [ 1557.218666] [<ffffffff811437ad>] sys_umount+0x63/0x37a
> [ 1557.218672] [<ffffffff81824c12>] system_call_fastpath+0x16/0x1b
> [ 1557.218674] ---[ end trace 29a44c3c46b1a1b9 ]---
> [ 1557.218676] ------------[ cut here ]------------
> [ 1557.218691] WARNING: at fs/btrfs/inode.c:7780
> btrfs_destroy_inode+0x296/0x2e6 [btrfs]()
> [ 1557.218693] Hardware name: OptiPlex 745
> [ 1557.218694] Modules linked in: iTCO_wdt iTCO_vendor_support lpc_ich
> mfd_core xts gf128mul ablk_helper cryptd aes_x86_64 sha256_generic
> btrfs libcrc32c
> [ 1557.218708] Pid: 5728, comm: umount Tainted: G W 3.6.4-x+ #3
> [ 1557.218709] Call Trace:
> [ 1557.218714] [<ffffffff810350ea>] warn_slowpath_common+0x74/0xa2
> [ 1557.218717] [<ffffffff81035132>] warn_slowpath_null+0x1a/0x1c
> [ 1557.218733] [<ffffffffa00414b3>] btrfs_destroy_inode+0x296/0x2e6 [btrfs]
> [ 1557.218737] [<ffffffff8113ef00>] destroy_inode+0x3c/0x5f
> [ 1557.218741] [<ffffffff8113f045>] evict+0x122/0x1ac
> [ 1557.218744] [<ffffffff8113f619>] dispose_list+0x3a/0x49
> [ 1557.218748] [<ffffffff8113fd27>] evict_inodes+0x106/0x115
> [ 1557.218752] [<ffffffff81127c32>] generic_shutdown_super+0x4c/0xdc
> [ 1557.218757] [<ffffffff81127d44>] kill_anon_super+0x16/0x24
> [ 1557.218767] [<ffffffffa000ad48>] btrfs_kill_super+0x1a/0x8f [btrfs]
> [ 1557.218771] [<ffffffff81127f68>] deactivate_locked_super+0x34/0x5a
> [ 1557.218775] [<ffffffff81128b60>] deactivate_super+0x4e/0x66
> [ 1557.218779] [<ffffffff81142924>] mntput_no_expire+0xf7/0x14d
> [ 1557.218783] [<ffffffff811437ad>] sys_umount+0x63/0x37a
> [ 1557.218787] [<ffffffff81824c12>] system_call_fastpath+0x16/0x1b
> [ 1557.218789] ---[ end trace 29a44c3c46b1a1ba ]---
> [ 1557.218791] ------------[ cut here ]------------
> [ 1557.218805] WARNING: at fs/btrfs/inode.c:7782
> btrfs_destroy_inode+0x26a/0x2e6 [btrfs]()
> [ 1557.218807] Hardware name: OptiPlex 745
> [ 1557.218809] Modules linked in: iTCO_wdt iTCO_vendor_support lpc_ich
> mfd_core xts gf128mul ablk_helper cryptd aes_x86_64 sha256_generic
> btrfs libcrc32c
> [ 1557.218822] Pid: 5728, comm: umount Tainted: G W 3.6.4-x+ #3
> [ 1557.218823] Call Trace:
> [ 1557.218827] [<ffffffff810350ea>] warn_slowpath_common+0x74/0xa2
> [ 1557.218831] [<ffffffff81035132>] warn_slowpath_null+0x1a/0x1c
> [ 1557.218847] [<ffffffffa0041487>] btrfs_destroy_inode+0x26a/0x2e6 [btrfs]
> [ 1557.218851] [<ffffffff8113ef00>] destroy_inode+0x3c/0x5f
> [ 1557.218854] [<ffffffff8113f045>] evict+0x122/0x1ac
> [ 1557.218858] [<ffffffff8113f619>] dispose_list+0x3a/0x49
> [ 1557.218862] [<ffffffff8113fd27>] evict_inodes+0x106/0x115
> [ 1557.218866] [<ffffffff81127c32>] generic_shutdown_super+0x4c/0xdc
> [ 1557.218870] [<ffffffff81127d44>] kill_anon_super+0x16/0x24
> [ 1557.218881] [<ffffffffa000ad48>] btrfs_kill_super+0x1a/0x8f [btrfs]
> [ 1557.218885] [<ffffffff81127f68>] deactivate_locked_super+0x34/0x5a
> [ 1557.218889] [<ffffffff81128b60>] deactivate_super+0x4e/0x66
> [ 1557.218893] [<ffffffff81142924>] mntput_no_expire+0xf7/0x14d
> [ 1557.218897] [<ffffffff811437ad>] sys_umount+0x63/0x37a
> [ 1557.218901] [<ffffffff81824c12>] system_call_fastpath+0x16/0x1b
> [ 1557.218903] ---[ end trace 29a44c3c46b1a1bb ]---
> [ 1557.895037] ------------[ cut here ]------------
> [ 1557.895069] WARNING: at fs/btrfs/extent-tree.c:4417
> btrfs_free_block_groups+0x2ad/0x34c [btrfs]()
> [ 1557.895073] Hardware name: OptiPlex 745
> [ 1557.895075] Modules linked in: iTCO_wdt iTCO_vendor_support lpc_ich
> mfd_core xts gf128mul ablk_helper cryptd aes_x86_64 sha256_generic
> btrfs libcrc32c
> [ 1557.895097] Pid: 5728, comm: umount Tainted: G W 3.6.4-x+ #3
> [ 1557.895100] Call Trace:
> [ 1557.895112] [<ffffffff810350ea>] warn_slowpath_common+0x74/0xa2
> [ 1557.895118] [<ffffffff81035132>] warn_slowpath_null+0x1a/0x1c
> [ 1557.895136] [<ffffffffa0022769>] btrfs_free_block_groups+0x2ad/0x34c [btrfs]
> [ 1557.895157] [<ffffffffa002e953>] close_ctree+0x1bc/0x2f1 [btrfs]
> [ 1557.895165] [<ffffffff8113fd27>] ? evict_inodes+0x106/0x115
> [ 1557.895179] [<ffffffffa0007075>] btrfs_put_super+0x19/0x1b [btrfs]
> [ 1557.895187] [<ffffffff81127c41>] generic_shutdown_super+0x5b/0xdc
> [ 1557.895193] [<ffffffff81127d44>] kill_anon_super+0x16/0x24
> [ 1557.895208] [<ffffffffa000ad48>] btrfs_kill_super+0x1a/0x8f [btrfs]
> [ 1557.895214] [<ffffffff81127f68>] deactivate_locked_super+0x34/0x5a
> [ 1557.895220] [<ffffffff81128b60>] deactivate_super+0x4e/0x66
> [ 1557.895226] [<ffffffff81142924>] mntput_no_expire+0xf7/0x14d
> [ 1557.895231] [<ffffffff811437ad>] sys_umount+0x63/0x37a
> [ 1557.895239] [<ffffffff81824c12>] system_call_fastpath+0x16/0x1b
> [ 1557.895243] ---[ end trace 29a44c3c46b1a1bc ]---
> [ 1557.895245] ------------[ cut here ]------------
> [ 1557.895261] WARNING: at fs/btrfs/extent-tree.c:4418
> btrfs_free_block_groups+0x347/0x34c [btrfs]()
> [ 1557.895264] Hardware name: OptiPlex 745
> [ 1557.895266] Modules linked in: iTCO_wdt iTCO_vendor_support lpc_ich
> mfd_core xts gf128mul ablk_helper cryptd aes_x86_64 sha256_generic
> btrfs libcrc32c
> [ 1557.895285] Pid: 5728, comm: umount Tainted: G W 3.6.4-x+ #3
> [ 1557.895287] Call Trace:
> [ 1557.895294] [<ffffffff810350ea>] warn_slowpath_common+0x74/0xa2
> [ 1557.895299] [<ffffffff81035132>] warn_slowpath_null+0x1a/0x1c
> [ 1557.895317] [<ffffffffa0022803>] btrfs_free_block_groups+0x347/0x34c [btrfs]
> [ 1557.895337] [<ffffffffa002e953>] close_ctree+0x1bc/0x2f1 [btrfs]
> [ 1557.895343] [<ffffffff8113fd27>] ? evict_inodes+0x106/0x115
> [ 1557.895358] [<ffffffffa0007075>] btrfs_put_super+0x19/0x1b [btrfs]
> [ 1557.895364] [<ffffffff81127c41>] generic_shutdown_super+0x5b/0xdc
> [ 1557.895370] [<ffffffff81127d44>] kill_anon_super+0x16/0x24
> [ 1557.895385] [<ffffffffa000ad48>] btrfs_kill_super+0x1a/0x8f [btrfs]
> [ 1557.895391] [<ffffffff81127f68>] deactivate_locked_super+0x34/0x5a
> [ 1557.895397] [<ffffffff81128b60>] deactivate_super+0x4e/0x66
> [ 1557.895402] [<ffffffff81142924>] mntput_no_expire+0xf7/0x14d
> [ 1557.895407] [<ffffffff811437ad>] sys_umount+0x63/0x37a
> [ 1557.895413] [<ffffffff81824c12>] system_call_fastpath+0x16/0x1b
> [ 1557.895417] ---[ end trace 29a44c3c46b1a1bd ]---
> [ 1557.895419] ------------[ cut here ]------------
> [ 1557.895435] WARNING: at fs/btrfs/extent-tree.c:7687
> btrfs_free_block_groups+0x23e/0x34c [btrfs]()
> [ 1557.895438] Hardware name: OptiPlex 745
> [ 1557.895440] Modules linked in: iTCO_wdt iTCO_vendor_support lpc_ich
> mfd_core xts gf128mul ablk_helper cryptd aes_x86_64 sha256_generic
> btrfs libcrc32c
> [ 1557.895458] Pid: 5728, comm: umount Tainted: G W 3.6.4-x+ #3
> [ 1557.895461] Call Trace:
> [ 1557.895467] [<ffffffff810350ea>] warn_slowpath_common+0x74/0xa2
> [ 1557.895472] [<ffffffff81035132>] warn_slowpath_null+0x1a/0x1c
> [ 1557.895489] [<ffffffffa00226fa>] btrfs_free_block_groups+0x23e/0x34c [btrfs]
> [ 1557.895510] [<ffffffffa002e953>] close_ctree+0x1bc/0x2f1 [btrfs]
> [ 1557.895516] [<ffffffff8113fd27>] ? evict_inodes+0x106/0x115
> [ 1557.895533] [<ffffffffa0007075>] btrfs_put_super+0x19/0x1b [btrfs]
> [ 1557.895540] [<ffffffff81127c41>] generic_shutdown_super+0x5b/0xdc
> [ 1557.895547] [<ffffffff81127d44>] kill_anon_super+0x16/0x24
> [ 1557.895561] [<ffffffffa000ad48>] btrfs_kill_super+0x1a/0x8f [btrfs]
> [ 1557.895567] [<ffffffff81127f68>] deactivate_locked_super+0x34/0x5a
> [ 1557.895573] [<ffffffff81128b60>] deactivate_super+0x4e/0x66
> [ 1557.895578] [<ffffffff81142924>] mntput_no_expire+0xf7/0x14d
> [ 1557.895583] [<ffffffff811437ad>] sys_umount+0x63/0x37a
> [ 1557.895588] [<ffffffff81824c12>] system_call_fastpath+0x16/0x1b
> [ 1557.895591] ---[ end trace 29a44c3c46b1a1be ]---
> [ 1557.895595] space_info 1 has 806678528 free, is not full
> [ 1557.895600] space_info total=4303355904, used=3496611840, pinned=0,
> reserved=0, may_use=2998272, readonly=65536
> [ 1557.895603] ------------[ cut here ]------------
> [ 1557.895619] WARNING: at fs/btrfs/extent-tree.c:7687
> btrfs_free_block_groups+0x23e/0x34c [btrfs]()
> [ 1557.895622] Hardware name: OptiPlex 745
> [ 1557.895624] Modules linked in: iTCO_wdt iTCO_vendor_support lpc_ich
> mfd_core xts gf128mul ablk_helper cryptd aes_x86_64 sha256_generic
> btrfs libcrc32c
> [ 1557.895643] Pid: 5728, comm: umount Tainted: G W 3.6.4-x+ #3
> [ 1557.895646] Call Trace:
> [ 1557.895652] [<ffffffff810350ea>] warn_slowpath_common+0x74/0xa2
> [ 1557.895656] [<ffffffff81035132>] warn_slowpath_null+0x1a/0x1c
> [ 1557.895673] [<ffffffffa00226fa>] btrfs_free_block_groups+0x23e/0x34c [btrfs]
> [ 1557.895693] [<ffffffffa002e953>] close_ctree+0x1bc/0x2f1 [btrfs]
> [ 1557.895699] [<ffffffff8113fd27>] ? evict_inodes+0x106/0x115
> [ 1557.895716] [<ffffffffa0007075>] btrfs_put_super+0x19/0x1b [btrfs]
> [ 1557.895723] [<ffffffff81127c41>] generic_shutdown_super+0x5b/0xdc
> [ 1557.895729] [<ffffffff81127d44>] kill_anon_super+0x16/0x24
> [ 1557.895743] [<ffffffffa000ad48>] btrfs_kill_super+0x1a/0x8f [btrfs]
> [ 1557.895749] [<ffffffff81127f68>] deactivate_locked_super+0x34/0x5a
> [ 1557.895754] [<ffffffff81128b60>] deactivate_super+0x4e/0x66
> [ 1557.895760] [<ffffffff81142924>] mntput_no_expire+0xf7/0x14d
> [ 1557.895764] [<ffffffff811437ad>] sys_umount+0x63/0x37a
> [ 1557.895770] [<ffffffff81824c12>] system_call_fastpath+0x16/0x1b
> [ 1557.895773] ---[ end trace 29a44c3c46b1a1bf ]---
> [ 1557.895776] space_info 4 has 92979200 free, is not full
> [ 1557.895780] space_info total=813694976, used=720715776, pinned=0,
> reserved=0, may_use=26738688, readonly=0
> --
> To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
next prev parent reply other threads:[~2012-10-30 1:20 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-27 10:28 [PATCH 1/2 v4] Btrfs: snapshot-aware defrag Liu Bo
2012-10-27 10:28 ` [PATCH 2/2] Btrfs: make snapshot-aware defrag as a mount option Liu Bo
2012-10-30 23:31 ` David Sterba
2012-10-31 0:34 ` Liu Bo
2012-10-31 0:44 ` David Sterba
2012-10-31 13:31 ` Liu Bo
2012-11-01 14:43 ` Chris Mason
2012-11-01 15:49 ` Liu Bo
2012-10-29 20:06 ` [PATCH 1/2 v4] Btrfs: snapshot-aware defrag Mitch Harder
2012-10-30 1:20 ` Liu Bo [this message]
2012-10-30 20:59 ` Mitch Harder
2012-10-31 12:13 ` Itaru Kitayama
2012-10-31 12:55 ` Liu Bo
2012-11-01 11:08 ` Itaru Kitayama
2012-11-01 11:21 ` Liu Bo
2012-11-01 14:05 ` Itaru Kitayama
2012-11-01 16:01 ` Liu Bo
[not found] ` <CANW9uyt9qE9384WnQq5ggZ2hb-DbahZe8KY5-WXRFSKTiedekg@mail.gmail.com>
2012-11-26 10:30 ` Liu Bo
2012-12-12 19:37 ` Mitch Harder
2012-12-13 1:28 ` Liu Bo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=508F2B44.5090408@oracle.com \
--to=bo.li.liu@oracle.com \
--cc=linux-btrfs@vger.kernel.org \
--cc=mitch.harder@sabayonlinux.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.