You've already forked linux-apfs
mirror of
https://github.com/linux-apfs/linux-apfs.git
synced 2026-05-01 15:00:59 -07:00
Jens Axboe
b00c53e8f4
We must have dropped the ctx before we call
blk_mq_sched_insert_request() with can_block=true, otherwise we risk
that a flush request can block on insertion if we are currently out of
tags.
[ 47.667190] BUG: scheduling while atomic: jbd2/sda2-8/2089/0x00000002
[ 47.674493] Modules linked in: x86_pkg_temp_thermal btrfs xor zlib_deflate raid6_pq sr_mod cdre
[ 47.690572] Preemption disabled at:
[ 47.690584] [<ffffffff81326c7c>] blk_mq_sched_get_request+0x6c/0x280
[ 47.701764] CPU: 1 PID: 2089 Comm: jbd2/sda2-8 Not tainted 4.11.0-rc7+ #271
[ 47.709630] Hardware name: Dell Inc. PowerEdge T630/0NT78X, BIOS 2.3.4 11/09/2016
[ 47.718081] Call Trace:
[ 47.720903] dump_stack+0x4f/0x73
[ 47.724694] ? blk_mq_sched_get_request+0x6c/0x280
[ 47.730137] __schedule_bug+0x6c/0xc0
[ 47.734314] __schedule+0x559/0x780
[ 47.738302] schedule+0x3b/0x90
[ 47.741899] io_schedule+0x11/0x40
[ 47.745788] blk_mq_get_tag+0x167/0x2a0
[ 47.750162] ? remove_wait_queue+0x70/0x70
[ 47.754901] blk_mq_get_driver_tag+0x92/0xf0
[ 47.759758] blk_mq_sched_insert_request+0x134/0x170
[ 47.765398] ? blk_account_io_start+0xd0/0x270
[ 47.770679] blk_mq_make_request+0x1b2/0x850
[ 47.775766] generic_make_request+0xf7/0x2d0
[ 47.780860] submit_bio+0x5f/0x120
[ 47.784979] ? submit_bio+0x5f/0x120
[ 47.789631] submit_bh_wbc.isra.46+0x10d/0x130
[ 47.794902] submit_bh+0xb/0x10
[ 47.798719] journal_submit_commit_record+0x190/0x210
[ 47.804686] ? _raw_spin_unlock+0x13/0x30
[ 47.809480] jbd2_journal_commit_transaction+0x180a/0x1d00
[ 47.815925] kjournald2+0xb6/0x250
[ 47.820022] ? kjournald2+0xb6/0x250
[ 47.824328] ? remove_wait_queue+0x70/0x70
[ 47.829223] kthread+0x10e/0x140
[ 47.833147] ? commit_timeout+0x10/0x10
[ 47.837742] ? kthread_create_on_node+0x40/0x40
[ 47.843122] ret_from_fork+0x29/0x40
Fixes: a4d907b6a3 ("blk-mq: streamline blk_mq_make_request")
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.