From: Chris Murphy <lists@colorremedies.com>
To: Btrfs BTRFS <linux-btrfs@vger.kernel.org>
Subject: 5.3.0-0.rc1 various tasks blocked for more than 120 seconds
Date: Fri, 26 Jul 2019 12:43:30 -0600 [thread overview]
Message-ID: <CAJCQCtRGNrKDBBFOZ3=Say=STMBAGMNKBwe4xsdJZL7mCRw98g@mail.gmail.com> (raw)
Seeing this with Fedora kernel 5.3.0-0.rc1.git3.1.fc31.x86_64 which
translates to git bed38c3e2dca
It's causing automated OS installations to hang indefinitely, only on
Btrfs. This is an excerpt of the first of many call traces:
15:52:20,316 ERR kernel:INFO: task kworker/u4:0:7 blocked for more
than 122 seconds.
15:52:20,316 ERR kernel: Not tainted 5.3.0-0.rc1.git3.1.fc31.x86_64 #1
15:52:20,316 ERR kernel:"echo 0 >
/proc/sys/kernel/hung_task_timeout_secs" disables this message.
15:52:20,316 INFO kernel:kworker/u4:0 D12192 7 2 0x80004000
15:52:20,317 INFO kernel:Workqueue: btrfs-endio-write
btrfs_endio_write_helper [btrfs]
15:52:20,317 WARNING kernel:Call Trace:
15:52:20,317 WARNING kernel: ? __schedule+0x352/0x900
15:52:20,317 WARNING kernel: schedule+0x3a/0xb0
15:52:20,317 WARNING kernel: btrfs_tree_read_lock+0xa3/0x260 [btrfs]
15:52:20,317 WARNING kernel: ? finish_wait+0x90/0x90
15:52:20,317 WARNING kernel: btrfs_read_lock_root_node+0x2f/0x40 [btrfs]
15:52:20,317 WARNING kernel: btrfs_search_slot+0x601/0x9d0 [btrfs]
15:52:20,317 WARNING kernel: btrfs_lookup_file_extent+0x4c/0x70 [btrfs]
15:52:20,317 WARNING kernel: __btrfs_drop_extents+0x16e/0xe00 [btrfs]
15:52:20,317 WARNING kernel: ? __set_extent_bit+0x55f/0x6a0 [btrfs]
15:52:20,317 WARNING kernel: ? kmem_cache_free+0x368/0x420
15:52:20,318 WARNING kernel:
insert_reserved_file_extent.constprop.0+0x93/0x2e0 [btrfs]
15:52:20,318 WARNING kernel: ? start_transaction+0x95/0x4e0 [btrfs]
15:52:20,318 WARNING kernel: btrfs_finish_ordered_io+0x3da/0x840 [btrfs]
15:52:20,318 WARNING kernel: normal_work_helper+0xd7/0x500 [btrfs]
15:52:20,318 WARNING kernel: process_one_work+0x272/0x5a0
15:52:20,318 WARNING kernel: worker_thread+0x50/0x3b0
15:52:20,318 WARNING kernel: kthread+0x108/0x140
15:52:20,318 WARNING kernel: ? process_one_work+0x5a0/0x5a0
15:52:20,318 WARNING kernel: ? kthread_park+0x80/0x80
15:52:20,318 WARNING kernel: ret_from_fork+0x3a/0x50
15:52:20,318 ERR kernel:INFO: task kworker/u4:1:31 blocked for more
than 122 seconds.
The full log is here:
https://openqa.fedoraproject.org/tests/426671/file/_do_install_and_reboot-syslog
--
Chris Murphy
next reply other threads:[~2019-07-26 18:43 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-26 18:43 Chris Murphy [this message]
2019-07-26 19:00 ` 5.3.0-0.rc1 various tasks blocked for more than 120 seconds Chris Murphy
2019-07-26 19:07 ` Nikolay Borisov
2019-07-26 19:10 ` Chris Murphy
2019-07-26 19:16 ` Nikolay Borisov
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