From: Christoph Hellwig <hch@lst.de>
To: Josef Bacik <josef@toxicpanda.com>
Cc: Christoph Hellwig <hch@lst.de>, Chris Mason <clm@fb.com>,
David Sterba <dsterba@suse.com>,
linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org
Subject: Re: small writeback fixes
Date: Wed, 19 Jul 2023 13:50:10 +0200 [thread overview]
Message-ID: <20230719115010.GA15617@lst.de> (raw)
In-Reply-To: <20230719053901.GA3241@lst.de>
On Wed, Jul 19, 2023 at 07:39:01AM +0200, Christoph Hellwig wrote:
> My day was already over by the time you sent this, but I looked into
> it the first thing this morning.
>
> I can't reproduce the hang, but my first thought was "why the heck do
> even end up in the fixup worker" given that there is no GUP-based
> dirtying in the thread.
>
> I can reproduce the test case hitting the fixup worker now, while
> I can't on misc-next. Looking into it now, but the rework of the
> fixup logic is a hot candidate.
So unfortunately even the BUG seems to trigger in a very sporadic
manner, making a bisect impossible. This is made worse by me actually
hitting another hang (dmesg output below) way more frequently, but that
one actually reproduces on misc-next as well. I'm also still confused
on how we hit the fixup worker, as that means we'll need to see a page
that.
a) was dirty so that the writeback code picks it up
b) had the delalloc bit already cleaned in the I/O tree
c) does not have the orderd bit set
"btrfs: move the cow_fixup earlier in writepages handling" would
be the obvious candidate touching this area, even if I can't see
how it makes a difference. Any chance you could check if it is
indeed the culprit?
And here is the more frequent hang I see with generic/475 loops:
135.245713] BTRFS info (device dm-0): using crc32c (crc32c-intel) checksum algorithm
[ 135.246243] BTRFS info (device dm-0): using free space tree
[ 135.252874] BTRFS info (device dm-0): bdev /dev/mapper/error-test errs: wr 0, rd 0, flush 00
[ 135.255126] BTRFS info (device dm-0): auto enabling async discard
[ 363.683264] INFO: task kworker/u4:7:4288 blocked for more than 120 seconds.
[ 363.683948] Not tainted 6.5.0-rc2+ #1662
[ 363.684290] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 363.684866] task:kworker/u4:7 state:D stack:0 pid:4288 ppid:2 flags:0x00004000
[ 363.685421] Workqueue: btrfs-cache btrfs_work_helper
[ 363.685763] Call Trace:
[ 363.685926] <TASK>
[ 363.686067] __schedule+0x406/0xcf0
[ 363.686314] schedule+0x5d/0xe0
[ 363.686526] io_schedule+0x41/0x70
[ 363.686751] bit_wait_io+0x8/0x50
[ 363.686967] __wait_on_bit+0x43/0x140
[ 363.688362] ? bit_wait+0x50/0x50
[ 363.688607] out_of_line_wait_on_bit+0x8f/0xb0
[ 363.688929] ? collect_percpu_times+0x380/0x380
[ 363.689257] read_extent_buffer_pages+0x18b/0x1d0
[ 363.689588] btrfs_read_extent_buffer+0x8e/0x170
[ 363.689905] read_tree_block+0x2e/0xa0
[ 363.690153] read_block_for_search+0x23b/0x350
[ 363.690453] btrfs_search_slot+0x2cf/0xe30
[ 363.690723] ? _raw_read_unlock+0x24/0x40
[ 363.690990] caching_thread+0x348/0x9e0
[ 363.699234] btrfs_work_helper+0xe6/0x3d0
[ 363.699543] ? lock_is_held_type+0xe3/0x140
[ 363.699859] process_one_work+0x255/0x4e0
[ 363.700160] worker_thread+0x4a/0x3a0
[ 363.700433] ? _raw_spin_unlock_irqrestore+0x3b/0x60
[ 363.700773] ? process_one_work+0x4e0/0x4e0
[ 363.701058] kthread+0xee/0x120
[ 363.701275] ? kthread_complete_and_exit+0x20/0x20
[ 363.701590] ret_from_fork+0x28/0x40
[ 363.701833] ? kthread_complete_and_exit+0x20/0x20
[ 363.702148] ret_from_fork_asm+0x11/0x20
[ 363.702413] RIP: 0000:0x0
[ 363.702596] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 363.703028] RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
[ 363.704102] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 363.704592] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 363.705076] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 363.705552] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 363.706024] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 363.706502] </TASK>
[ 363.706665] INFO: task btrfs-transacti:8653 blocked for more than 120 seconds.
[ 363.707141] Not tainted 6.5.0-rc2+ #1662
[ 363.719240] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 363.719833] task:btrfs-transacti state:D stack:0 pid:8653 ppid:2 flags:0x00004000
[ 363.720456] Call Trace:
[ 363.720643] <TASK>
[ 363.720812] __schedule+0x406/0xcf0
[ 363.721089] schedule+0x5d/0xe0
[ 363.721314] io_schedule+0x41/0x70
[ 363.721548] bit_wait_io+0x8/0x50
[ 363.721778] __wait_on_bit+0x43/0x140
[ 363.722031] ? bit_wait+0x50/0x50
[ 363.722260] out_of_line_wait_on_bit+0x8f/0xb0
[ 363.722566] ? collect_percpu_times+0x380/0x380
[ 363.722877] read_extent_buffer_pages+0x18b/0x1d0
[ 363.723221] btrfs_read_extent_buffer+0x8e/0x170
[ 363.723542] read_tree_block+0x2e/0xa0
[ 363.723804] read_block_for_search+0x23b/0x350
[ 363.724115] btrfs_search_slot+0x2cf/0xe30
[ 363.724401] ? _raw_read_unlock+0x24/0x40
[ 363.724682] lookup_inline_extent_backref+0x16c/0x770
[ 363.725038] ? lock_acquire+0xe4/0x2d0
[ 363.725305] lookup_extent_backref+0x3c/0xc0
[ 363.725605] __btrfs_free_extent+0xf2/0x1070
[ 363.725907] ? lock_release+0x142/0x290
[ 363.726176] __btrfs_run_delayed_refs+0x2e8/0x1280
[ 363.726514] ? btrfs_commit_transaction+0x38/0x1290
[ 363.726852] btrfs_run_delayed_refs+0x70/0x1e0
[ 363.727161] ? btrfs_commit_transaction+0x38/0x1290
[ 363.735220] btrfs_commit_transaction+0xa7/0x1290
[ 363.735598] ? start_transaction+0xc0/0x700
[ 363.735936] transaction_kthread+0x139/0x1a0
[ 363.736284] ? _raw_spin_unlock_irqrestore+0x3b/0x60
[ 363.736680] ? close_ctree+0x5a0/0x5a0
[ 363.736944] kthread+0xee/0x120
[ 363.737176] ? kthread_complete_and_exit+0x20/0x20
[ 363.737506] ret_from_fork+0x28/0x40
[ 363.737757] ? kthread_complete_and_exit+0x20/0x20
[ 363.738087] ret_from_fork_asm+0x11/0x20
[ 363.738356] RIP: 0000:0x0
[ 363.738544] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 363.738986] RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
[ 363.739512] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 363.740001] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 363.740500] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 363.740995] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 363.741500] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 363.742008] </TASK>
[ 363.742171] INFO: task fsstress:8657 blocked for more than 120 seconds.
[ 363.742630] Not tainted 6.5.0-rc2+ #1662
[ 363.742941] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 363.751221] task:fsstress state:D stack:0 pid:8657 ppid:8655 flags:0x00004002
[ 363.751839] Call Trace:
[ 363.752017] <TASK>
[ 363.752178] __schedule+0x406/0xcf0
[ 363.752427] ? _raw_spin_unlock_irqrestore+0x2b/0x60
[ 363.752771] ? __x64_sys_tee+0xc0/0xc0
[ 363.753041] schedule+0x5d/0xe0
[ 363.753269] wb_wait_for_completion+0x4d/0x80
[ 363.753574] ? this_rq_lock_irq+0xa0/0xa0
[ 363.753858] sync_inodes_sb+0xd4/0x470
[ 363.754124] ? __x64_sys_tee+0xc0/0xc0
[ 363.754395] iterate_supers+0x80/0xe0
[ 363.754661] ksys_sync+0x3b/0xa0
[ 363.754893] __do_sys_sync+0x5/0x10
[ 363.755137] do_syscall_64+0x34/0x80
[ 363.755403] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 363.755759] RIP: 0033:0x7f6039ab2a37
[ 363.756006] RSP: 002b:00007fff79cafd78 EFLAGS: 00000206 ORIG_RAX: 00000000000000a2
[ 363.756522] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f6039ab2a37
[ 363.757009] RDX: 00000000fd69c659 RSI: 00000000029639a6 RDI: 0000000000000007
[ 363.757511] RBP: 000000000007a120 R08: 0000000000000070 R09: 00007fff79caf89c
[ 363.757994] R10: 00007f60399bd258 R11: 0000000000000206 R12: 000055b6208925e0
[ 363.758483] R13: 028f5c28f5c28f5c R14: 8f5c28f5c28f5c29 R15: 000055b62087e620
[ 363.758988] </TASK>
[ 363.759147] INFO: task fsstress:8658 blocked for more than 120 seconds.
[ 363.767219] Not tainted 6.5.0-rc2+ #1662
[ 363.767560] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 363.768135] task:fsstress state:D stack:0 pid:8658 ppid:8655 flags:0x00004002
[ 363.768753] Call Trace:
[ 363.768942] <TASK>
[ 363.769116] __schedule+0x406/0xcf0
[ 363.769363] schedule+0x5d/0xe0
[ 363.769589] io_schedule+0x41/0x70
[ 363.769831] folio_wait_bit_common+0x11d/0x340
[ 363.770146] ? filemap_get_folios_tag+0x378/0x450
[ 363.770484] ? __probestub_file_check_and_advance_wb_err+0x10/0x10
[ 363.770925] folio_wait_writeback+0x1f/0xa0
[ 363.771240] __filemap_fdatawait_range+0x74/0xd0
[ 363.771575] ? _raw_spin_unlock_irqrestore+0x3b/0x60
[ 363.771929] ? __clear_extent_bit+0x173/0x4c0
[ 363.772242] filemap_fdatawait_range+0x9/0x20
[ 363.772551] __btrfs_wait_marked_extents.isra.0+0xb2/0xf0
[ 363.772928] btrfs_wait_tree_log_extents+0x28/0xa0
[ 363.773281] btrfs_sync_log+0x4a0/0xb90
[ 363.773567] btrfs_sync_file+0x424/0x5e0
[ 363.773854] __x64_sys_fsync+0x32/0x60
[ 363.774123] do_syscall_64+0x34/0x80
[ 363.774381] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 363.774735] RIP: 0033:0x7f6039ab29b0
[ 363.774988] RSP: 002b:00007fff79cafd48 EFLAGS: 00000202 ORIG_RAX: 000000000000004a
[ 363.783212] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f6039ab29b0
[ 363.783739] RDX: 0000000000000105 RSI: 000055b62088b048 RDI: 0000000000000004
[ 363.784206] RBP: 0000000000000015 R08: 00007f6039b4e4c0 R09: 00007fff79cafd5c
[ 363.784683] R10: 00007f60399cab78 R11: 0000000000000202 R12: 00007fff79cafd60
[ 363.785184] R13: 028f5c28f5c28f5c R14: 8f5c28f5c28f5c29 R15: 000055b6208867c0
[ 363.785677] </TASK>
[ 363.785837] INFO: task fsstress:8659 blocked for more than 120 seconds.
[ 363.786296] Not tainted 6.5.0-rc2+ #1662
[ 363.786620] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 363.787157] task:fsstress state:D stack:0 pid:8659 ppid:8655 flags:0x00000002
[ 363.787755] Call Trace:
[ 363.787940] <TASK>
[ 363.788099] __schedule+0x406/0xcf0
[ 363.788348] schedule+0x5d/0xe0
[ 363.788573] io_schedule+0x41/0x70
[ 363.788816] folio_wait_bit_common+0x11d/0x340
[ 363.789140] ? __probestub_file_check_and_advance_wb_err+0x10/0x10
[ 363.789565] extent_write_cache_pages+0x41e/0x7b0
[ 363.789892] ? __kernel_text_address+0x9/0x30
[ 363.790196] ? unwind_get_return_address+0x16/0x30
[ 363.790538] extent_writepages+0x7e/0x100
[ 363.790823] do_writepages+0xc5/0x180
[ 363.791087] filemap_fdatawrite_wbc+0x56/0x80
[ 363.799222] __filemap_fdatawrite_range+0x53/0x70
[ 363.799596] btrfs_remap_file_range+0x132/0x620
[ 363.799944] vfs_dedupe_file_range_one+0x177/0x1f0
[ 363.800297] vfs_dedupe_file_range+0x186/0x1f0
[ 363.800620] do_vfs_ioctl+0x49d/0x930
[ 363.800890] __x64_sys_ioctl+0x64/0xc0
[ 363.801170] do_syscall_64+0x34/0x80
[ 363.801430] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 363.801784] RIP: 0033:0x7f6039ab1afb
[ 363.802038] RSP: 002b:00007fff79cafc70 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 363.802555] RAX: ffffffffffffffda RBX: 000055b6224398e8 RCX: 00007f6039ab1afb
[ 363.803038] RDX: 000055b6224397c0 RSI: 00000000c0189436 RDI: 0000000000000004
[ 363.803544] RBP: 000055b622439988 R08: 000055b6224399c0 R09: 000055b6224399a4
[ 363.804039] R10: 0000000000001000 R11: 0000000000000246 R12: 000055b622439820
[ 363.804520] R13: 000000000000000b R14: 0000000000000002 R15: 0000000000007000
[ 363.805015] </TASK>
[ 363.805204]
[ 363.805204] Showing all locks held in the system:
[ 363.805646] 1 lock held by rcu_tasks_kthre/11:
[ 363.805965] #0: ffffffff839bf8f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one0
[ 363.806625] 1 lock held by rcu_tasks_trace/12:
[ 363.806936] #0: ffffffff839bf630 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tas0
[ 363.815221] 1 lock held by khungtaskd/24:
[ 363.815528] #0: ffffffff839c0360 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0xe0
[ 363.816232] 1 lock held by in:imklog/3192:
[ 363.816570] #0: ffff8881076fb788 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x43/0x50
[ 363.817228] 4 locks held by kworker/u4:6/4181:
[ 363.817546] 4 locks held by kworker/u4:7/4288:
[ 363.817859] #0: ffff888113284d38 ((wq_completion)btrfs-cache){+.+.}-{0:0}, at: process_one0
[ 363.818539] #1: ffffc90004b4fe58 ((work_completion)(&work->normal_work)){+.+.}-{0:0}, at: 0
[ 363.819289] #2: ffff8881168d5078 (&caching_ctl->mutex){+.+.}-{3:3}, at: caching_thread+0x40
[ 363.819904] #3: ffff88810d5acab0 (&fs_info->commit_root_sem){++++}-{3:3}, at: caching_thre0
[ 363.820560] 6 locks held by btrfs-transacti/8653:
[ 363.820888] #0: ffff88810d5ac7d0 (&fs_info->transaction_kthread_mutex){+.+.}-{3:3}, at: tr0
[ 363.821625] #1: ffff88810d5ae378 (btrfs_trans_num_writers){++++}-{0:0}, at: join_transacti0
[ 363.822276] #2: ffff88810d5ae3a0 (btrfs_trans_num_extwriters){++++}-{0:0}, at: join_transa0
[ 363.822944] #3: ffff88810d5ae3c8 (btrfs_trans_commit_start){.+.+}-{0:0}, at: btrfs_commit_0
[ 363.835223] #4: ffff88810da5ca28 (&head_ref->mutex){+.+.}-{3:3}, at: btrfs_delayed_ref_loc0
[ 363.835936] #5: ffff8881149c7548 (btrfs-extent-01#2){++++}-{3:3}, at: __btrfs_tree_lock+0x0
[ 363.836570] 2 locks held by fsstress/8657:
[ 363.836857] #0: ffff88810da390e0 (&type->s_umount_key#51){++++}-{3:3}, at: iterate_supers+0
[ 363.837504] #1: ffff88810da3c7d0 (&bdi->wb_switch_rwsem){++++}-{3:3}, at: sync_inodes_sb+00
[ 363.838126] 4 locks held by fsstress/8658:
[ 363.838408] #0: ffff88810da395f0 (sb_internal#2){.+.+}-{0:0}, at: btrfs_sync_file+0x339/0x0
[ 363.838994] #1: ffff88810d5ae378 (btrfs_trans_num_writers){++++}-{0:0}, at: join_transacti0
[ 363.843228] #2: ffff88810d5ae3a0 (btrfs_trans_num_extwriters){++++}-{0:0}, at: join_transa0
[ 363.844006] #3: ffff888115b193b0 (&root->log_mutex){+.+.}-{3:3}, at: btrfs_sync_log+0x303/0
[ 363.844690] 3 locks held by fsstress/8659:
[ 363.844973] #0: ffff88810da39400 (sb_writers#14){.+.+}-{0:0}, at: vfs_dedupe_file_range_on0
[ 363.845612] #1: ffff888111ef2110 (&sb->s_type->i_mutex_key#18){++++}-{3:3}, at: btrfs_inod0
[ 363.846264] #2: ffff888111ef1f98 (&ei->i_mmap_lock){++++}-{3:3}, at: btrfs_inode_lock+0x440
[ 363.846858] 4 locks held by fsstress/8660:
[ 363.847136] 1 lock held by dmsetup/8661:
[ 363.851231] #0: ffff88811549d068 (&md->suspend_lock/1){+.+.}-{3:3}, at: dm_suspend+0x23/0x0
[ 363.851867]
[ 363.851993] =============================================
[ 363.851993]
[ 484.515287] INFO: task kworker/u4:7:4288 blocked for more than 241 seconds.
[ 484.515907] Not tainted 6.5.0-rc2+ #1662
[ 484.516254] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 484.516822] task:kworker/u4:7 state:D stack:0 pid:4288 ppid:2 flags:0x00004000
[ 484.517411] Workqueue: btrfs-cache btrfs_work_helper
[ 484.517772] Call Trace:
[ 484.517950] <TASK>
[ 484.518107] __schedule+0x406/0xcf0
[ 484.518364] schedule+0x5d/0xe0
[ 484.518591] io_schedule+0x41/0x70
[ 484.518839] bit_wait_io+0x8/0x50
[ 484.519079] __wait_on_bit+0x43/0x140
[ 484.520645] ? bit_wait+0x50/0x50
[ 484.521078] out_of_line_wait_on_bit+0x8f/0xb0
[ 484.521409] ? collect_percpu_times+0x380/0x380
[ 484.521731] read_extent_buffer_pages+0x18b/0x1d0
[ 484.522065] btrfs_read_extent_buffer+0x8e/0x170
[ 484.522392] read_tree_block+0x2e/0xa0
[ 484.522658] read_block_for_search+0x23b/0x350
[ 484.522978] btrfs_search_slot+0x2cf/0xe30
[ 484.529712] ? _raw_read_unlock+0x24/0x40
[ 484.530361] caching_thread+0x348/0x9e0
[ 484.530747] btrfs_work_helper+0xe6/0x3d0
[ 484.531037] ? lock_is_held_type+0xe3/0x140
[ 484.531510] process_one_work+0x255/0x4e0
[ 484.531823] worker_thread+0x4a/0x3a0
[ 484.532089] ? _raw_spin_unlock_irqrestore+0x3b/0x60
[ 484.532530] ? process_one_work+0x4e0/0x4e0
[ 484.532932] kthread+0xee/0x120
[ 484.533201] ? kthread_complete_and_exit+0x20/0x20
[ 484.533537] ret_from_fork+0x28/0x40
[ 484.533796] ? kthread_complete_and_exit+0x20/0x20
[ 484.534145] ret_from_fork_asm+0x11/0x20
[ 484.534431] RIP: 0000:0x0
[ 484.534630] Code: Unable to access opcode bytes at 0xffffffffffffffd6.
[ 484.536665] RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
[ 484.537222] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 484.537726] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 484.538245] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 484.538754] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 484.547221] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 484.547899] </TASK>
[ 484.548073] INFO: task btrfs-transacti:8653 blocked for more than 241 seconds.
[ 484.548592] Not tainted 6.5.0-rc2+ #1662
[ 484.548909] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 484.549452] task:btrfs-transacti state:D stack:0 pid:8653 ppid:2 flags:0x00004000
[ 484.550050] Call Trace:
[ 484.550243] <TASK>
[ 484.550408] __schedule+0x406/0xcf0
[ 484.550684] schedule+0x5d/0xe0
[ 484.550921] io_schedule+0x41/0x70
[ 484.551176] bit_wait_io+0x8/0x50
[ 484.552000] __wait_on_bit+0x43/0x140
[ 484.552295] ? bit_wait+0x50/0x50
[ 484.552549] out_of_line_wait_on_bit+0x8f/0xb0
[ 484.552884] ? collect_percpu_times+0x380/0x380
[ 484.553221] read_extent_buffer_pages+0x18b/0x1d0
[ 484.553569] btrfs_read_extent_buffer+0x8e/0x170
[ 484.553914] read_tree_block+0x2e/0xa0
[ 484.554194] read_block_for_search+0x23b/0x350
[ 484.554533] btrfs_search_slot+0x2cf/0xe30
[ 484.554846] ? _raw_read_unlock+0x24/0x40
[ 484.555144] lookup_inline_extent_backref+0x16c/0x770
[ 484.563223] ? lock_acquire+0xe4/0x2d0
[ 484.563556] lookup_extent_backref+0x3c/0xc0
[ 484.563905] __btrfs_free_extent+0xf2/0x1070
[ 484.564234] ? lock_release+0x142/0x290
[ 484.564533] __btrfs_run_delayed_refs+0x2e8/0x1280
[ 484.564910] ? btrfs_commit_transaction+0x38/0x1290
[ 484.565283] btrfs_run_delayed_refs+0x70/0x1e0
[ 484.565629] ? btrfs_commit_transaction+0x38/0x1290
[ 484.566007] btrfs_commit_transaction+0xa7/0x1290
[ 484.566372] ? start_transaction+0xc0/0x700
[ 484.566697] transaction_kthread+0x139/0x1a0
[ 484.567033] ? _raw_spin_unlock_irqrestore+0x3b/0x60
[ 484.567952] ? close_ctree+0x5a0/0x5a0
[ 484.568261] kthread+0xee/0x120
[ 484.568515] ? kthread_complete_and_exit+0x20/0x20
next prev parent reply other threads:[~2023-07-19 11:50 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-13 13:04 small writeback fixes Christoph Hellwig
2023-07-13 13:04 ` [PATCH 1/9] btrfs: don't stop integrity writeback too early Christoph Hellwig
2023-07-13 13:04 ` [PATCH 2/9] btrfs: don't wait for writeback on clean pages in extent_write_cache_pages Christoph Hellwig
2023-07-13 13:04 ` [PATCH 3/9] btrfs: fix an error handling corner case in cow_file_range Christoph Hellwig
2023-07-13 13:04 ` [PATCH 4/9] btrfs: move the cow_fixup earlier in writepages handling Christoph Hellwig
2023-07-13 13:04 ` [PATCH 5/9] btrfs: fix handling of errors from __extent_writepage_io Christoph Hellwig
2023-07-13 13:04 ` [PATCH 6/9] btrfs: stop submitting I/O after an error in extent_write_locked_range Christoph Hellwig
2023-07-13 13:04 ` [PATCH 7/9] btrfs: fix a race in clearing the writeback bit for sub-page I/O Christoph Hellwig
2023-07-13 13:04 ` [PATCH 8/9] btrfs: remove the call to btrfs_mark_ordered_io_finished in btrfs_writepage_fixup_worker Christoph Hellwig
2023-07-13 13:04 ` [PATCH 9/9] btrfs: lift the call to mapping_set_error out of cow_file_range Christoph Hellwig
2023-07-14 13:59 ` small writeback fixes Josef Bacik
2023-07-18 17:17 ` Josef Bacik
2023-07-19 5:39 ` Christoph Hellwig
2023-07-19 11:50 ` Christoph Hellwig [this message]
2023-07-19 14:30 ` Josef Bacik
2023-07-19 15:25 ` Christoph Hellwig
2023-07-19 21:42 ` Josef Bacik
2023-07-20 4:48 ` Christoph Hellwig
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=20230719115010.GA15617@lst.de \
--to=hch@lst.de \
--cc=clm@fb.com \
--cc=dsterba@suse.com \
--cc=josef@toxicpanda.com \
--cc=linux-btrfs@vger.kernel.org \
--cc=linux-fsdevel@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 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.