From: "Swâmi Petaramesh" <swami@petaramesh.org>
To: linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: BTRFS kernel errors in 3.15.5
Date: Sat, 19 Jul 2014 09:19:13 +0200 [thread overview]
Message-ID: <1874170.zy97UOFIcr@zafu> (raw)
Hi,
This happens systematically these days, while trying to backup using rsync two
of my laptops on an external HD - BTRFS formatted.
First at mount :
juil. 19 09:08:32 zafu kernel: BTRFS info (device dm-3): disk space caching is
enabled
juil. 19 09:08:38 zafu kernel: pool[7215]: segfault at 58252fd0 ip
00007fd06e466ac7 sp 00007fd062ffbf90 error 4 in
libc-2.19.so[7fd06e41e000+1a4000]
Happening on 2 different machines (both Arch Linux with latest kernel), I
suspected the external HD, but it spent the night passing all long SMART tests
plus a "btrfs scrub", all with flying colors...
After the following error, all accesses to the external HD lock until a forced
power off of the whole system...
juil. 19 09:12:57 zafu kernel: INFO: task kworker/u4:7:6677 blocked for more
than 120 seconds.
juil. 19 09:12:57 zafu kernel: Tainted: G O 3.15.5-2-ARCH #1
juil. 19 09:12:57 zafu kernel: "echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
juil. 19 09:12:57 zafu kernel: kworker/u4:7 D 0000000000000000 0 6677
2 0x00000000
juil. 19 09:12:57 zafu kernel: Workqueue: btrfs-flush_delalloc
normal_work_helper [btrfs]
juil. 19 09:12:57 zafu kernel: ffff88001e9dfb48 0000000000000046 ffff8800879f1460
0000000000014700
juil. 19 09:12:57 zafu kernel: ffff88001e9dffd8 0000000000014700 ffff8800879f1460
ffffffffa0262692
juil. 19 09:12:57 zafu kernel: 0000000000000000 ffffffff00000050 ffff88001e9dfbc4
ffff88001e9dfac8
juil. 19 09:12:57 zafu kernel: Call Trace:
juil. 19 09:12:57 zafu kernel: [<ffffffffa0262692>] ?
run_delalloc_range+0x192/0x350 [btrfs]
juil. 19 09:12:57 zafu kernel: [<ffffffff8113f880>] ? filemap_fdatawait+0x30/0x30
juil. 19 09:12:57 zafu kernel: [<ffffffff81509fa9>] schedule+0x29/0x70
juil. 19 09:12:57 zafu kernel: [<ffffffff8150a294>] io_schedule+0x94/0xf0
juil. 19 09:12:57 zafu kernel: [<ffffffff8113f88e>] sleep_on_page+0xe/0x20
juil. 19 09:12:57 zafu kernel: [<ffffffff8150a788>] __wait_on_bit_lock+0x48/0xb0
juil. 19 09:12:57 zafu kernel: [<ffffffff8113f9e8>] __lock_page+0x78/0x90
juil. 19 09:12:57 zafu kernel: [<ffffffff810b1c80>] ?
autoremove_wake_function+0x40/0x40
juil. 19 09:12:57 zafu kernel: [<ffffffffa027ac98>]
extent_write_cache_pages.isra.28.constprop.45+0x258/0x3a0 [btrfs]
juil. 19 09:12:57 zafu kernel: [<ffffffff810a714c>] ? update_curr+0xec/0x1b0
juil. 19 09:12:57 zafu kernel: [<ffffffff810a3068>] ? __enqueue_entity+0x78/0x80
juil. 19 09:12:57 zafu kernel: [<ffffffff810a902e>] ? enqueue_entity+0x24e/0xaa0
juil. 19 09:12:57 zafu kernel: [<ffffffffa027c20c>] extent_writepages+0x5c/0x90
[btrfs]
juil. 19 09:12:57 zafu kernel: [<ffffffffa025e9d0>] ?
__btrfs_submit_bio_start_direct_io+0x40/0x40 [btrfs]
juil. 19 09:12:57 zafu kernel: [<ffffffffa025d6e8>] btrfs_writepages+0x28/0x30
[btrfs]
juil. 19 09:12:57 zafu kernel: [<ffffffff8114d1de>] do_writepages+0x1e/0x30
juil. 19 09:12:57 zafu kernel: [<ffffffff8114139d>]
__filemap_fdatawrite_range+0x5d/0x80
juil. 19 09:12:57 zafu kernel: [<ffffffff8114140c>] filemap_flush+0x1c/0x20
juil. 19 09:12:57 zafu kernel: [<ffffffffa026046a>]
btrfs_run_delalloc_work+0x5a/0xa0 [btrfs]
juil. 19 09:12:57 zafu kernel: [<ffffffffa028aa77>] normal_work_helper+0x77/0x350
[btrfs]
juil. 19 09:12:57 zafu kernel: [<ffffffff810861d8>] process_one_work+0x168/0x450
juil. 19 09:12:57 zafu kernel: [<ffffffff81086c32>] worker_thread+0x132/0x3e0
juil. 19 09:12:57 zafu kernel: [<ffffffff81086b00>] ?
manage_workers.isra.23+0x2d0/0x2d0
juil. 19 09:12:57 zafu kernel: [<ffffffff8108d43a>] kthread+0xea/0x100
juil. 19 09:12:57 zafu kernel: [<ffffffff8108d350>] ?
kthread_create_on_node+0x1b0/0x1b0
juil. 19 09:12:57 zafu kernel: [<ffffffff81515efc>] ret_from_fork+0x7c/0xb0
juil. 19 09:12:57 zafu kernel: [<ffffffff8108d350>] ?
kthread_create_on_node+0x1b0/0x1b0
--
Swâmi Petaramesh <swami@petaramesh.org> http://petaramesh.org PGP 9076E32E
next reply other threads:[~2014-07-19 7:19 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-19 7:19 Swâmi Petaramesh [this message]
2014-07-19 10:18 ` BTRFS kernel errors in 3.15.5 Duncan
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=1874170.zy97UOFIcr@zafu \
--to=swami@petaramesh.org \
--cc=linux-btrfs@vger.kernel.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).