From: bugzilla-daemon@kernel.org
To: linux-f2fs-devel@lists.sourceforge.net
Subject: [f2fs-dev] [Bug 216050] f2fs_gc occupies 100% cpu
Date: Sun, 30 Jul 2023 11:06:13 +0000 [thread overview]
Message-ID: <bug-216050-202145-4rQB1qvIX8@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-216050-202145@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=216050
kelak (aleks_@gmx.net) changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |aleks_@gmx.net
--- Comment #175 from kelak (aleks_@gmx.net) ---
Still happens on my system with 6.4.x kernels after about 4 days (today the
second time in the last two weeks):
# uname -a
Linux pavo 6.4.6-arch1-1 #1 SMP PREEMPT_DYNAMIC Mon, 24 Jul 2023 20:19:38 +0000
x86_64 GNU/Linux
# uptime
12:49:15 up 4 days, 1:38, 14 users, load average: 6.09, 6.11, 6.09
# ps afux | grep f2fs
root 421 0.0 0.0 0 0 ? D Jul26 0:06 \_
[f2fs_ckpt-254:0]
root 422 0.0 0.0 0 0 ? S Jul26 0:00 \_
[f2fs_flush-254:0]
root 423 0.0 0.0 0 0 ? S Jul26 0:00 \_
[f2fs_discard-254:0]
root 424 6.8 0.0 0 0 ? R Jul26 399:26 \_
[f2fs_gc-254:0]
root 714 0.0 0.0 0 0 ? S Jul26 0:02 \_
[f2fs_ckpt-254:1]
root 715 0.0 0.0 0 0 ? S Jul26 0:00 \_
[f2fs_flush-254:1]
root 716 0.0 0.0 0 0 ? S Jul26 0:00 \_
[f2fs_discard-254:1]
root 725 0.0 0.0 0 0 ? S Jul26 0:09 \_
[f2fs_gc-254:1]
# cat /sys/kernel/debug/f2fs/status
=====[ partition info(dm-0). #0, RW, CP: Good]=====
[SBI: fs_dirty]
[SB: 1] [CP: 2] [SIT: 4] [NAT: 116] [SSA: 78] [MAIN: 39727(OverProv:569
Resv:289)]
Current Time Sec: 352033 / Mounted Time Sec: 13
Policy:
- IPU: [ FSYNC ]
Utilization: 31% (6380179 valid blocks, 13105165 discard blocks)
- Node: 204879 (Inode: 199852, Other: 5027)
- Data: 6175300
- Inline_xattr Inode: 44851
- Inline_data Inode: 29674
- Inline_dentry Inode: 2151
- Compressed Inode: 0, Blocks: 0
- Swapfile Inode: 0
- Orphan/Append/Update Inode: 3, 0, 0
Main area: 39727 segs, 39727 secs 39727 zones
TYPE segno secno zoneno dirty_seg full_seg valid_blk
- COLD data: 27547 27547 27547 717 8794 4862994
- WARM data: 27570 27570 27570 41 2263 1171156
- HOT data: 326 326 326 22 215 120280
- Dir dnode: 61 61 61 27 2 14475
- File dnode: 310 310 310 350 28 190066
- Indir nodes: 261 261 261 1 0 333
- Pinned file: -1 -1 -1
- ATGC data: -1 -1 -1
- Valid: 11308
- Dirty: 1152
- Prefree: 1
- Free: 27266 (27266)
CP calls: 5068 (BG: 4847)
- cp blocks : 21743
- sit blocks : 27307
- nat blocks : 284434
- ssa blocks : 4982
CP merge:
- Queued : 3
- Issued : 5069
- Total : 5069
- Cur time : 5(ms)
- Peak time : 355(ms)
GC calls: 4479 (BG: 4480)
- data segments : 1682 (0)
- node segments : 2797 (0)
- Reclaimed segs :
- Normal : 4479
- Idle CB : 0
- Idle Greedy : 0
- Idle AT : 0
- Urgent High : 0
- Urgent Mid : 0
- Urgent Low : 0
Try to move 2023304 blocks (BG: 0)
- data blocks : 686401 (0)
- node blocks : 1336903 (0)
BG skip : IO: 843, Other: 8
Extent Cache (Read):
- Hit Count: L1-1:104104223097 L1-2:40279 L2:19420
- Hit Ratio: 99% (104104282796 / 104107306835)
- Inner Struct Count: tree: 33955(0), node: 160
Extent Cache (Block Age):
- Allocated Data Blocks: 1147983
- Hit Count: L1:0 L2:0
- Hit Ratio: 0% (0 / 0)
- Inner Struct Count: tree: 0(0), node: 0
Balancing F2FS Async:
- DIO (R: 0, W: 0)
- IO_R (Data: 0, Node: 0, Meta: 0
- IO_W (CP: 0, Data: 0, Flush: ( 0 3114 1), Discard: ( 0 7852))
cmd: 1954 undiscard:4539
- atomic IO: 0 (Max. 0)
- compress: 0, hit: 0
- nodes: 63 in 27008
- dents: 0 in dirs: 0 ( 4)
- datas: 30 in files: 0
- quota datas: 0 in quota files: 0
- meta: 26 in 1913
- imeta: 2
- fsync mark: 389
- NATs: 44/ 878
- SITs: 135/ 39727
- free_nids: 3161/ 13306775
- alloc_nids: 0
Distribution of User Blocks: [ valid | invalid | free ]
[---------------|-|----------------------------------]
IPU: 2095 blocks
SSR: 0 blocks in 0 segments
LFS: 2563874 blocks in 5008 segments
BDF: 99, avg. vblocks: 494
Memory: 130282 KB
- static: 11343 KB
- cached all: 3254 KB
- read extent cache: 2929 KB
- block age extent cache: 0 KB
- paged : 115684 KB
=====[ partition info(dm-1). #1, RW, CP: Good]=====
[SBI: fs_dirty need_fsck]
[SB: 1] [CP: 2] [SIT: 32] [NAT: 88] [SSA: 876] [MAIN: 447237(OverProv:1897
Resv:960)]
Current Time Sec: 352033 / Mounted Time Sec: 20
Policy:
- IPU: [ FSYNC ]
Utilization: 60% (137479434 valid blocks, 83700313 discard blocks)
- Node: 796398 (Inode: 673288, Other: 123110)
- Data: 136683036
- Inline_xattr Inode: 512050
- Inline_data Inode: 207070
- Inline_dentry Inode: 38713
- Compressed Inode: 0, Blocks: 0
- Swapfile Inode: 0
- Orphan/Append/Update Inode: 0, 0, 0
Main area: 447237 segs, 447237 secs 447237 zones
TYPE segno secno zoneno dirty_seg full_seg valid_blk
- COLD data: 270602 270602 270602 3627 124609 64920639
- WARM data: 269915 269915 269915 1012 138752 71272348
- HOT data: 2485 2485 2485 84 940 490021
- Dir dnode: 2507 2507 2507 72 71 63227
- File dnode: 2511 2511 2511 642 988 731964
- Indir nodes: 2380 2380 2380 21 1 1204
- Pinned file: -1 -1 -1
- ATGC data: -1 -1 -1
- Valid: 265367
- Dirty: 5452
- Prefree: 0
- Free: 176418 (176418)
CP calls: 4575 (BG: 6476)
- cp blocks : 18577
- sit blocks : 11759
- nat blocks : 6361
- ssa blocks : 15209
CP merge:
- Queued : 0
- Issued : 7154
- Total : 7155
- Cur time : 4(ms)
- Peak time : 517(ms)
GC calls: 4109 (BG: 4109)
- data segments : 4103 (0)
- node segments : 6 (0)
- Reclaimed segs :
- Normal : 4109
- Idle CB : 0
- Idle Greedy : 0
- Idle AT : 0
- Urgent High : 0
- Urgent Mid : 0
- Urgent Low : 0
Try to move 6 blocks (BG: 0)
- data blocks : 0 (0)
- node blocks : 6 (0)
BG skip : IO: 1617, Other: 3
Extent Cache (Read):
- Hit Count: L1-1:78346 L1-2:808 L2:62
- Hit Ratio: 6% (79216 / 1314997)
- Inner Struct Count: tree: 471059(0), node: 3
Extent Cache (Block Age):
- Allocated Data Blocks: 7759701
- Hit Count: L1:0 L2:0
- Hit Ratio: 0% (0 / 0)
- Inner Struct Count: tree: 0(0), node: 0
Balancing F2FS Async:
- DIO (R: 0, W: 0)
- IO_R (Data: 0, Node: 0, Meta: 0
- IO_W (CP: 0, Data: 0, Flush: ( 0 1274 1), Discard: ( 0 0))
cmd: 10381 undiscard:7805628
- atomic IO: 0 (Max. 0)
- compress: 0, hit: 0
- nodes: 13 in 107925
- dents: 1 in dirs: 1 ( 6)
- datas: 30 in files: 0
- quota datas: 0 in quota files: 0
- meta: 6 in 9440
- imeta: 4
- fsync mark: 0
- NATs: 6/ 63316
- SITs: 8/ 447237
- free_nids: 3843/ 9453836
- alloc_nids: 0
Distribution of User Blocks: [ valid | invalid | free ]
[------------------------------|-|-------------------]
IPU: 0 blocks
SSR: 0 blocks in 0 segments
LFS: 7790262 blocks in 15215 segments
BDF: 99, avg. vblocks: 295
Memory: 620142 KB
- static: 106987 KB
- cached all: 43694 KB
- read extent cache: 40481 KB
- block age extent cache: 0 KB
- paged : 469460 KB
# dmesg # (only F2FS relevant parts)
[ 0.000000] microcode: updated early: 0x25 -> 0x26, date = 2019-11-12
[ 0.000000] Linux version 6.4.6-arch1-1 (linux@archlinux) (gcc (GCC) 13.1.1
20230714, GNU ld (GNU Binutils) 2.40.0) #1 SMP PREEMPT_DYNAMIC Mon, 24 Jul 2023
20:19:38 +0000
...
[ 6.988098] device-mapper: uevent: version 1.0.3
[ 6.988195] device-mapper: ioctl: 4.48.0-ioctl (2023-03-01) initialised:
dm-devel@redhat.com
[ 7.023553] Key type encrypted registered
[ 13.454117] F2FS-fs (dm-0): Mounted with checkpoint version = 424a2306
[ 13.639655] systemd[1]: systemd 253.7-1-arch running in system mode (+PAM
+AUDIT -SELINUX -APPARMOR -IMA +SMACK +SECCOMP +GCRYPT +GNUTLS +OPENSSL +ACL
+BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN +IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK
+PCRE2 -PWQUALITY +P11KIT -QRENCODE +TPM2 +BZIP2 +LZ4 +XZ +ZLIB +ZSTD
+BPF_FRAMEWORK +XKBCOMMON +UTMP -SYSVINIT default-hierarchy=unified)
...
[ 20.654961] F2FS-fs (dm-1): Mounted with checkpoint version = 4bb49ae6
...
[327726.678181] INFO: task f2fs_ckpt-254:0:421 blocked for more than 122
seconds.
[327726.678191] Not tainted 6.4.6-arch1-1 #1
[327726.678194] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[327726.678196] task:f2fs_ckpt-254:0 state:D stack:0 pid:421 ppid:2
flags:0x00004000
[327726.678205] Call Trace:
[327726.678207] <TASK>
[327726.678212] __schedule+0x3e8/0x1410
[327726.678221] ? sysvec_apic_timer_interrupt+0xe/0x90
[327726.678230] schedule+0x5e/0xd0
[327726.678235] schedule_preempt_disabled+0x15/0x30
[327726.678239] rwsem_down_write_slowpath+0x203/0x690
[327726.678250] ? __pfx_issue_checkpoint_thread+0x10/0x10 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327726.678338] down_write+0x5b/0x60
[327726.678344] __checkpoint_and_complete_reqs+0x7c/0x1b0 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327726.678424] ? __pfx_issue_checkpoint_thread+0x10/0x10 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327726.678499] issue_checkpoint_thread+0x4c/0x110 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327726.678575] ? __pfx_autoremove_wake_function+0x10/0x10
[327726.678584] kthread+0xe5/0x120
[327726.678590] ? __pfx_kthread+0x10/0x10
[327726.678596] ret_from_fork+0x29/0x50
[327726.678606] </TASK>
[327726.678627] INFO: task kworker/u8:6:74861 blocked for more than 122
seconds.
[327726.678631] Not tainted 6.4.6-arch1-1 #1
[327726.678633] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[327726.678635] task:kworker/u8:6 state:D stack:0 pid:74861 ppid:2
flags:0x00004000
[327726.678643] Workqueue: writeback wb_workfn (flush-254:0)
[327726.678651] Call Trace:
[327726.678653] <TASK>
[327726.678656] __schedule+0x3e8/0x1410
[327726.678661] ? ttwu_queue_wakelist+0xef/0x110
[327726.678666] ? try_to_wake_up+0xd9/0x610
[327726.678674] schedule+0x5e/0xd0
[327726.678679] schedule_timeout+0x151/0x160
[327726.678687] wait_for_completion+0x8a/0x160
[327726.678693] f2fs_issue_checkpoint+0x11f/0x200 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327726.678772] f2fs_balance_fs_bg+0x12e/0x390 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327726.678856] f2fs_write_node_pages+0x78/0x240 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327726.678938] do_writepages+0xcf/0x1e0
[327726.678945] __writeback_single_inode+0x3d/0x360
[327726.678951] writeback_sb_inodes+0x1ed/0x4b0
[327726.678958] __writeback_inodes_wb+0x4c/0xf0
[327726.678964] wb_writeback+0x172/0x2f0
[327726.678970] wb_workfn+0x35b/0x510
[327726.678975] ? __schedule+0x3f0/0x1410
[327726.678979] ? __mod_timer+0x11f/0x370
[327726.678987] process_one_work+0x1c4/0x3d0
[327726.678996] worker_thread+0x51/0x390
[327726.679003] ? __pfx_worker_thread+0x10/0x10
[327726.679009] kthread+0xe5/0x120
[327726.679015] ? __pfx_kthread+0x10/0x10
[327726.679020] ret_from_fork+0x29/0x50
[327726.679030] </TASK>
[327849.560344] INFO: task f2fs_ckpt-254:0:421 blocked for more than 245
seconds.
[327849.560354] Not tainted 6.4.6-arch1-1 #1
[327849.560357] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[327849.560359] task:f2fs_ckpt-254:0 state:D stack:0 pid:421 ppid:2
flags:0x00004000
[327849.560367] Call Trace:
[327849.560370] <TASK>
[327849.560374] __schedule+0x3e8/0x1410
[327849.560383] ? sysvec_apic_timer_interrupt+0xe/0x90
[327849.560391] schedule+0x5e/0xd0
[327849.560395] schedule_preempt_disabled+0x15/0x30
[327849.560399] rwsem_down_write_slowpath+0x203/0x690
[327849.560409] ? __pfx_issue_checkpoint_thread+0x10/0x10 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327849.560501] down_write+0x5b/0x60
[327849.560507] __checkpoint_and_complete_reqs+0x7c/0x1b0 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327849.560587] ? __pfx_issue_checkpoint_thread+0x10/0x10 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327849.560662] issue_checkpoint_thread+0x4c/0x110 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327849.560739] ? __pfx_autoremove_wake_function+0x10/0x10
[327849.560748] kthread+0xe5/0x120
[327849.560755] ? __pfx_kthread+0x10/0x10
[327849.560761] ret_from_fork+0x29/0x50
[327849.560773] </TASK>
[327849.560797] INFO: task kworker/u8:6:74861 blocked for more than 245
seconds.
[327849.560800] Not tainted 6.4.6-arch1-1 #1
[327849.560803] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[327849.560805] task:kworker/u8:6 state:D stack:0 pid:74861 ppid:2
flags:0x00004000
[327849.560813] Workqueue: writeback wb_workfn (flush-254:0)
[327849.560821] Call Trace:
[327849.560824] <TASK>
[327849.560827] __schedule+0x3e8/0x1410
[327849.560832] ? ttwu_queue_wakelist+0xef/0x110
[327849.560839] ? try_to_wake_up+0xd9/0x610
[327849.560847] schedule+0x5e/0xd0
[327849.560852] schedule_timeout+0x151/0x160
[327849.560859] wait_for_completion+0x8a/0x160
[327849.560867] f2fs_issue_checkpoint+0x11f/0x200 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327849.560947] f2fs_balance_fs_bg+0x12e/0x390 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327849.561033] f2fs_write_node_pages+0x78/0x240 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327849.561115] do_writepages+0xcf/0x1e0
[327849.561123] __writeback_single_inode+0x3d/0x360
[327849.561129] writeback_sb_inodes+0x1ed/0x4b0
[327849.561138] __writeback_inodes_wb+0x4c/0xf0
[327849.561144] wb_writeback+0x172/0x2f0
[327849.561150] wb_workfn+0x35b/0x510
[327849.561156] ? __schedule+0x3f0/0x1410
[327849.561160] ? __mod_timer+0x11f/0x370
[327849.561169] process_one_work+0x1c4/0x3d0
[327849.561179] worker_thread+0x51/0x390
[327849.561187] ? __pfx_worker_thread+0x10/0x10
[327849.561194] kthread+0xe5/0x120
[327849.561199] ? __pfx_kthread+0x10/0x10
[327849.561205] ret_from_fork+0x29/0x50
[327849.561215] </TASK>
[327972.442481] INFO: task f2fs_ckpt-254:0:421 blocked for more than 368
seconds.
[327972.442488] Not tainted 6.4.6-arch1-1 #1
[327972.442490] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[327972.442491] task:f2fs_ckpt-254:0 state:D stack:0 pid:421 ppid:2
flags:0x00004000
[327972.442497] Call Trace:
[327972.442499] <TASK>
[327972.442503] __schedule+0x3e8/0x1410
[327972.442510] ? sysvec_apic_timer_interrupt+0xe/0x90
[327972.442516] schedule+0x5e/0xd0
[327972.442518] schedule_preempt_disabled+0x15/0x30
[327972.442521] rwsem_down_write_slowpath+0x203/0x690
[327972.442529] ? __pfx_issue_checkpoint_thread+0x10/0x10 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327972.442588] down_write+0x5b/0x60
[327972.442592] __checkpoint_and_complete_reqs+0x7c/0x1b0 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327972.442639] ? __pfx_issue_checkpoint_thread+0x10/0x10 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327972.442682] issue_checkpoint_thread+0x4c/0x110 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327972.442727] ? __pfx_autoremove_wake_function+0x10/0x10
[327972.442733] kthread+0xe5/0x120
[327972.442738] ? __pfx_kthread+0x10/0x10
[327972.442741] ret_from_fork+0x29/0x50
[327972.442749] </TASK>
[327972.442769] INFO: task kworker/u8:6:74861 blocked for more than 368
seconds.
[327972.442771] Not tainted 6.4.6-arch1-1 #1
[327972.442773] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[327972.442774] task:kworker/u8:6 state:D stack:0 pid:74861 ppid:2
flags:0x00004000
[327972.442778] Workqueue: writeback wb_workfn (flush-254:0)
[327972.442785] Call Trace:
[327972.442786] <TASK>
[327972.442788] __schedule+0x3e8/0x1410
[327972.442791] ? ttwu_queue_wakelist+0xef/0x110
[327972.442795] ? try_to_wake_up+0xd9/0x610
[327972.442800] schedule+0x5e/0xd0
[327972.442803] schedule_timeout+0x151/0x160
[327972.442808] wait_for_completion+0x8a/0x160
[327972.442813] f2fs_issue_checkpoint+0x11f/0x200 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327972.442860] f2fs_balance_fs_bg+0x12e/0x390 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327972.442912] f2fs_write_node_pages+0x78/0x240 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[327972.442963] do_writepages+0xcf/0x1e0
[327972.442968] __writeback_single_inode+0x3d/0x360
[327972.442971] writeback_sb_inodes+0x1ed/0x4b0
[327972.442976] __writeback_inodes_wb+0x4c/0xf0
[327972.442979] wb_writeback+0x172/0x2f0
[327972.442983] wb_workfn+0x35b/0x510
[327972.442986] ? __schedule+0x3f0/0x1410
[327972.442989] ? __mod_timer+0x11f/0x370
[327972.442994] process_one_work+0x1c4/0x3d0
[327972.443001] worker_thread+0x51/0x390
[327972.443006] ? __pfx_worker_thread+0x10/0x10
[327972.443011] kthread+0xe5/0x120
[327972.443014] ? __pfx_kthread+0x10/0x10
[327972.443018] ret_from_fork+0x29/0x50
[327972.443025] </TASK>
[328095.324600] INFO: task f2fs_ckpt-254:0:421 blocked for more than 491
seconds.
[328095.324611] Not tainted 6.4.6-arch1-1 #1
[328095.324614] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[328095.324616] task:f2fs_ckpt-254:0 state:D stack:0 pid:421 ppid:2
flags:0x00004000
[328095.324625] Call Trace:
[328095.324628] <TASK>
[328095.324634] __schedule+0x3e8/0x1410
[328095.324643] ? sysvec_apic_timer_interrupt+0xe/0x90
[328095.324652] schedule+0x5e/0xd0
[328095.324657] schedule_preempt_disabled+0x15/0x30
[328095.324662] rwsem_down_write_slowpath+0x203/0x690
[328095.324673] ? __pfx_issue_checkpoint_thread+0x10/0x10 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[328095.324759] down_write+0x5b/0x60
[328095.324765] __checkpoint_and_complete_reqs+0x7c/0x1b0 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[328095.324839] ? __pfx_issue_checkpoint_thread+0x10/0x10 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[328095.324910] issue_checkpoint_thread+0x4c/0x110 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[328095.324981] ? __pfx_autoremove_wake_function+0x10/0x10
[328095.324990] kthread+0xe5/0x120
[328095.324997] ? __pfx_kthread+0x10/0x10
[328095.325003] ret_from_fork+0x29/0x50
[328095.325013] </TASK>
[328095.325035] INFO: task kworker/u8:6:74861 blocked for more than 491
seconds.
[328095.325038] Not tainted 6.4.6-arch1-1 #1
[328095.325041] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[328095.325043] task:kworker/u8:6 state:D stack:0 pid:74861 ppid:2
flags:0x00004000
[328095.325051] Workqueue: writeback wb_workfn (flush-254:0)
[328095.325059] Call Trace:
[328095.325061] <TASK>
[328095.325064] __schedule+0x3e8/0x1410
[328095.325069] ? ttwu_queue_wakelist+0xef/0x110
[328095.325076] ? try_to_wake_up+0xd9/0x610
[328095.325084] schedule+0x5e/0xd0
[328095.325088] schedule_timeout+0x151/0x160
[328095.325096] wait_for_completion+0x8a/0x160
[328095.325103] f2fs_issue_checkpoint+0x11f/0x200 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[328095.325178] f2fs_balance_fs_bg+0x12e/0x390 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[328095.325258] f2fs_write_node_pages+0x78/0x240 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[328095.325335] do_writepages+0xcf/0x1e0
[328095.325342] __writeback_single_inode+0x3d/0x360
[328095.325349] writeback_sb_inodes+0x1ed/0x4b0
[328095.325356] __writeback_inodes_wb+0x4c/0xf0
[328095.325362] wb_writeback+0x172/0x2f0
[328095.325368] wb_workfn+0x35b/0x510
[328095.325374] ? __schedule+0x3f0/0x1410
[328095.325378] ? __mod_timer+0x11f/0x370
[328095.325387] process_one_work+0x1c4/0x3d0
[328095.325395] worker_thread+0x51/0x390
[328095.325403] ? __pfx_worker_thread+0x10/0x10
[328095.325410] kthread+0xe5/0x120
[328095.325415] ? __pfx_kthread+0x10/0x10
[328095.325421] ret_from_fork+0x29/0x50
[328095.325430] </TASK>
[328218.206759] INFO: task f2fs_ckpt-254:0:421 blocked for more than 614
seconds.
[328218.206768] Not tainted 6.4.6-arch1-1 #1
[328218.206771] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[328218.206773] task:f2fs_ckpt-254:0 state:D stack:0 pid:421 ppid:2
flags:0x00004000
[328218.206779] Call Trace:
[328218.206781] <TASK>
[328218.206785] __schedule+0x3e8/0x1410
[328218.206792] ? sysvec_apic_timer_interrupt+0xe/0x90
[328218.206798] schedule+0x5e/0xd0
[328218.206801] schedule_preempt_disabled+0x15/0x30
[328218.206804] rwsem_down_write_slowpath+0x203/0x690
[328218.206812] ? __pfx_issue_checkpoint_thread+0x10/0x10 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[328218.206872] down_write+0x5b/0x60
[328218.206877] __checkpoint_and_complete_reqs+0x7c/0x1b0 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[328218.206928] ? __pfx_issue_checkpoint_thread+0x10/0x10 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[328218.206975] issue_checkpoint_thread+0x4c/0x110 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[328218.207020] ? __pfx_autoremove_wake_function+0x10/0x10
[328218.207027] kthread+0xe5/0x120
[328218.207031] ? __pfx_kthread+0x10/0x10
[328218.207035] ret_from_fork+0x29/0x50
[328218.207042] </TASK>
[328218.207064] INFO: task kworker/u8:6:74861 blocked for more than 614
seconds.
[328218.207067] Not tainted 6.4.6-arch1-1 #1
[328218.207068] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables
this message.
[328218.207070] task:kworker/u8:6 state:D stack:0 pid:74861 ppid:2
flags:0x00004000
[328218.207075] Workqueue: writeback wb_workfn (flush-254:0)
[328218.207081] Call Trace:
[328218.207082] <TASK>
[328218.207084] __schedule+0x3e8/0x1410
[328218.207087] ? ttwu_queue_wakelist+0xef/0x110
[328218.207091] ? try_to_wake_up+0xd9/0x610
[328218.207097] schedule+0x5e/0xd0
[328218.207099] schedule_timeout+0x151/0x160
[328218.207105] wait_for_completion+0x8a/0x160
[328218.207109] f2fs_issue_checkpoint+0x11f/0x200 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[328218.207158] f2fs_balance_fs_bg+0x12e/0x390 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[328218.207211] f2fs_write_node_pages+0x78/0x240 [f2fs
daaabf438da293fce6726f2a1db3018f0802cf41]
[328218.207262] do_writepages+0xcf/0x1e0
[328218.207267] __writeback_single_inode+0x3d/0x360
[328218.207271] writeback_sb_inodes+0x1ed/0x4b0
[328218.207275] __writeback_inodes_wb+0x4c/0xf0
[328218.207279] wb_writeback+0x172/0x2f0
[328218.207282] wb_workfn+0x35b/0x510
[328218.207286] ? __schedule+0x3f0/0x1410
[328218.207288] ? __mod_timer+0x11f/0x370
[328218.207294] process_one_work+0x1c4/0x3d0
[328218.207300] worker_thread+0x51/0x390
[328218.207305] ? __pfx_worker_thread+0x10/0x10
[328218.207310] kthread+0xe5/0x120
[328218.207314] ? __pfx_kthread+0x10/0x10
[328218.207318] ret_from_fork+0x29/0x50
[328218.207324] </TASK>
[328218.207325] Future hung task reports are suppressed, see sysctl
kernel.hung_task_warnings
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Thread overview: 182+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-30 11:28 [f2fs-dev] [Bug 216050] New: fsfs_gc occupies 100% cpu bugzilla-daemon
2022-05-30 11:52 ` [f2fs-dev] [Bug 216050] " bugzilla-daemon
2022-05-30 23:47 ` bugzilla-daemon
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