From: Jannis Achstetter <jannis_achstetter@web.de>
To: linux-btrfs@vger.kernel.org
Subject: Re: [RFC PATCH v8 00/14] Online(inband) data deduplication
Date: Tue, 25 Feb 2014 19:22:28 +0000 (UTC) [thread overview]
Message-ID: <loom.20140225T201641-262@post.gmane.org> (raw)
In-Reply-To: 1388391175-29539-1-git-send-email-bo.li.liu@oracle.com
Hello Liu, hello list,
Liu Bo <bo.li.liu <at> oracle.com> writes:
> Here is the New Year patch bomb
I tried yout btrfs deduplication patches today (on top of 3.13.2-gentoo) and
it seems that the deduplication works great (when copying the same or
similar data to the file system, the used size reported by df -h grows less
than the data that is copied to it on the second time).
However, there are disturbing messages in the kernel log:
[46620.519741] btrfs-delalloc-: page allocation failure: order:5, mode:0x104050
[46620.519743] CPU: 1 PID: 25246 Comm: btrfs-delalloc- Tainted: G
O 3.13.2-gentoo #4
[46620.519744] Hardware name: MSI MS-7640/890FXA-GD70 (MS-7640) , BIOS
V1.12 10/06/2011
[46620.519745] ffff880098881b38 ffffffff81920b14 0000000000104050
ffffffff81145927
[46620.519747] 0000000000000000 ffff880237ffc800 0000000000000000
0000000000000005
[46620.519749] 0000000000000001 ffffffff8191ce20 ffff880237ffc808
0000000000000002
[46620.519750] Call Trace:
[46620.519752] [<ffffffff81920b14>] ? dump_stack+0x49/0x6a
[46620.519754] [<ffffffff81145927>] ? warn_alloc_failed+0xe7/0x140
[46620.519757] [<ffffffff8191ce20>] ? __alloc_pages_direct_compact+0xa2/0x1b0
[46620.519759] [<ffffffff81148fa4>] ? __alloc_pages_nodemask+0x7f4/0x970
[46620.519761] [<ffffffff8118376f>] ? alloc_pages_current+0xaf/0x180
[46620.519763] [<ffffffff81144cc5>] ? __get_free_pages+0x5/0x40
[46620.519765] [<ffffffff8115fb1b>] ? kmalloc_order_trace+0x3b/0xe0
[46620.519767] [<ffffffff813291f5>] ? run_delalloc_dedup+0x685/0xba0
[46620.519769] [<ffffffff813280ae>] ? run_locked_range.constprop.66+0xce/0xd0
[46620.519771] [<ffffffff8109fd90>] ? detach_if_pending+0x100/0x100
[46620.519773] [<ffffffff81329785>] ? async_cow_start+0x75/0xa0
[46620.519775] [<ffffffff8134da99>] ? worker_loop+0x149/0x550
[46620.519777] [<ffffffff8134d950>] ? btrfs_queue_worker+0x2f0/0x2f0
[46620.519779] [<ffffffff810b4481>] ? kthread+0xc1/0xe0
[46620.519781] [<ffffffff810b43c0>] ? kthread_create_on_node+0x190/0x190
[46620.519783] [<ffffffff819286bc>] ? ret_from_fork+0x7c/0xb0
[46620.519785] [<ffffffff810b43c0>] ? kthread_create_on_node+0x190/0x190
(many of them, as to be seen here: http://bpaste.net/show/182698/ )
I use btrfs with lzo compression:
/dev/sdc2 on /mnt/steamdir type btrfs (rw,compress=lzo)
Kernel config is here:
http://bpaste.net/show/182706/
If you need any more info, just let me know!
Thanks for your work and all the best,
Jannis Achstetter
next prev parent reply other threads:[~2014-02-25 19:30 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-30 8:12 [RFC PATCH v8 00/14] Online(inband) data deduplication Liu Bo
2013-12-30 8:12 ` [PATCH v8 01/14] Btrfs: skip merge part for delayed data refs Liu Bo
2013-12-30 8:12 ` [PATCH v8 02/14] Btrfs: improve the delayed refs process in rm case Liu Bo
2013-12-30 8:12 ` [PATCH v8 03/14] Btrfs: introduce a head ref rbtree Liu Bo
2013-12-30 8:12 ` [PATCH v8 04/14] Btrfs: disable qgroups accounting when quata_enable is 0 Liu Bo
2013-12-30 8:12 ` [PATCH v8 05/14] Btrfs: introduce dedup tree and relatives Liu Bo
2013-12-30 8:12 ` [PATCH v8 06/14] Btrfs: introduce dedup tree operations Liu Bo
2013-12-30 8:12 ` [PATCH v8 07/14] Btrfs: introduce dedup state Liu Bo
2013-12-30 8:12 ` [PATCH v8 08/14] Btrfs: make ordered extent aware of dedup Liu Bo
2013-12-30 8:12 ` [PATCH v8 09/14] Btrfs: online(inband) data dedup Liu Bo
2013-12-30 8:12 ` [PATCH v8 10/14] Btrfs: skip dedup reference during backref walking Liu Bo
2013-12-30 8:12 ` [PATCH v8 11/14] Btrfs: don't return space for dedup extent Liu Bo
2013-12-30 8:12 ` [PATCH v8 12/14] Btrfs: add ioctl of dedup control Liu Bo
2013-12-30 8:12 ` [PATCH v8 13/14] Btrfs: fix dedupe 'ENOSPC' problem Liu Bo
2013-12-30 8:12 ` [PATCH v8 14/14] Btrfs: fix a crash of dedup ref Liu Bo
2013-12-30 8:12 ` [PATCH] Btrfs-progs: add dedup subcommand Liu Bo
2013-12-30 11:34 ` Martin Steigerwald
2013-12-31 3:18 ` Liu Bo
2013-12-31 3:24 ` Kai Krakow
2014-01-14 17:34 ` David Sterba
2014-01-15 1:35 ` Liu Bo
2014-01-17 16:14 ` David Sterba
2014-01-02 14:32 ` [RFC PATCH v8 00/14] Online(inband) data deduplication Konstantinos Skarlatos
2014-01-02 15:02 ` Konstantinos Skarlatos
2014-02-25 19:22 ` Jannis Achstetter [this message]
2014-02-25 19:39 ` Jannis Achstetter
2014-02-26 20:20 ` Jannis Achstetter
2014-02-27 2:39 ` Liu Bo
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