INFO: task kworker/u4:0:9 blocked for more than 143 seconds.
Not tainted 6.2.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:0 state:D
stack:27168 pid:9 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn
(flush-7:0)
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6606
schedule+0xde/0x1b0 kernel/sched/core.c:6682
schedule_timeout+0x1e1/0x2a0 kernel/time/timer.c:2143
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106
f2fs_issue_checkpoint+0x35c/0x460 fs/f2fs/checkpoint.c:1887
f2fs_sync_fs+0x244/0x4c0 fs/f2fs/super.c:1669
f2fs_balance_fs_bg+0xc95/0xf40 fs/f2fs/segment.c:500
f2fs_write_node_pages+0x14a/0xd60 fs/f2fs/node.c:2109
do_writepages+0x1af/0x690 mm/page-writeback.c:2581
__writeback_single_inode+0x159/0x1440 fs/fs-writeback.c:1598
writeback_sb_inodes+0x54d/0xf90 fs/fs-writeback.c:1889
__writeback_inodes_wb+0xc6/0x280 fs/fs-writeback.c:1960
wb_writeback+0x8d6/0xd70 fs/fs-writeback.c:2065
wb_check_old_data_flush fs/fs-writeback.c:2165 [inline]
wb_do_writeback fs/fs-writeback.c:2218 [inline]
wb_workfn+0x871/0x12f0 fs/fs-writeback.c:2246
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task kworker/u4:1:11 blocked for more than 145 seconds.
Not tainted 6.2.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:1 state:D
stack:22856 pid:11 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn
(flush-7:1)
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6606
schedule+0xde/0x1b0 kernel/sched/core.c:6682
schedule_timeout+0x1e1/0x2a0 kernel/time/timer.c:2143
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106
f2fs_issue_checkpoint+0x35c/0x460 fs/f2fs/checkpoint.c:1887
f2fs_sync_fs+0x244/0x4c0 fs/f2fs/super.c:1669
f2fs_balance_fs_bg+0xc95/0xf40 fs/f2fs/segment.c:500
f2fs_write_node_pages+0x14a/0xd60 fs/f2fs/node.c:2109
do_writepages+0x1af/0x690 mm/page-writeback.c:2581
__writeback_single_inode+0x159/0x1440 fs/fs-writeback.c:1598
writeback_sb_inodes+0x54d/0xf90 fs/fs-writeback.c:1889
__writeback_inodes_wb+0xc6/0x280 fs/fs-writeback.c:1960
wb_writeback+0x8d6/0xd70 fs/fs-writeback.c:2065
wb_check_old_data_flush fs/fs-writeback.c:2165 [inline]
wb_do_writeback fs/fs-writeback.c:2218 [inline]
wb_workfn+0x871/0x12f0 fs/fs-writeback.c:2246
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task kworker/u4:3:52 blocked for more than 148 seconds.
Not tainted 6.2.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:3 state:D
stack:26424 pid:52 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn
(flush-7:3)
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6606
schedule+0xde/0x1b0 kernel/sched/core.c:6682
schedule_timeout+0x1e1/0x2a0 kernel/time/timer.c:2143
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106
f2fs_issue_checkpoint+0x35c/0x460 fs/f2fs/checkpoint.c:1887
f2fs_sync_fs+0x244/0x4c0 fs/f2fs/super.c:1669
f2fs_balance_fs_bg+0xc95/0xf40 fs/f2fs/segment.c:500
f2fs_write_node_pages+0x14a/0xd60 fs/f2fs/node.c:2109
do_writepages+0x1af/0x690 mm/page-writeback.c:2581
__writeback_single_inode+0x159/0x1440 fs/fs-writeback.c:1598
writeback_sb_inodes+0x54d/0xf90 fs/fs-writeback.c:1889
__writeback_inodes_wb+0xc6/0x280 fs/fs-writeback.c:1960
wb_writeback+0x8d6/0xd70 fs/fs-writeback.c:2065
wb_check_old_data_flush fs/fs-writeback.c:2165 [inline]
wb_do_writeback fs/fs-writeback.c:2218 [inline]
wb_workfn+0x871/0x12f0 fs/fs-writeback.c:2246
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task kworker/u4:6:2935 blocked for more than 149 seconds.
Not tainted 6.2.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:6 state:D
stack:26896 pid:2935 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn
(flush-7:5)
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6606
schedule+0xde/0x1b0 kernel/sched/core.c:6682
schedule_timeout+0x1e1/0x2a0 kernel/time/timer.c:2143
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106
f2fs_issue_checkpoint+0x35c/0x460 fs/f2fs/checkpoint.c:1887
f2fs_sync_fs+0x244/0x4c0 fs/f2fs/super.c:1669
f2fs_balance_fs_bg+0xc95/0xf40 fs/f2fs/segment.c:500
f2fs_write_node_pages+0x14a/0xd60 fs/f2fs/node.c:2109
do_writepages+0x1af/0x690 mm/page-writeback.c:2581
__writeback_single_inode+0x159/0x1440 fs/fs-writeback.c:1598
writeback_sb_inodes+0x54d/0xf90 fs/fs-writeback.c:1889
__writeback_inodes_wb+0xc6/0x280 fs/fs-writeback.c:1960
wb_writeback+0x8d6/0xd70 fs/fs-writeback.c:2065
wb_check_old_data_flush fs/fs-writeback.c:2165 [inline]
wb_do_writeback fs/fs-writeback.c:2218 [inline]
wb_workfn+0x871/0x12f0 fs/fs-writeback.c:2246
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task syz-executor140:5070 blocked for more than 152 seconds.
Not tainted 6.2.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor140 state:D
stack:25496 pid:5070 ppid:5067 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6606
schedule+0xde/0x1b0 kernel/sched/core.c:6682
d_wait_lookup fs/dcache.c:2625 [inline]
d_alloc_parallel+0xd85/0x1410 fs/dcache.c:2707
__lookup_slow+0x193/0x460 fs/namei.c:1670
lookup_slow fs/namei.c:1702 [inline]
walk_component+0x33f/0x5a0 fs/namei.c:1993
lookup_last fs/namei.c:2450 [inline]
path_lookupat+0x1ba/0x840 fs/namei.c:2474
filename_lookup+0x1d2/0x590 fs/namei.c:2503
user_path_at_empty+0x46/0x60 fs/namei.c:2876
user_path_at include/linux/namei.h:57 [inline]
do_sys_truncate.part.0+0x86/0x140 fs/open.c:132
do_sys_truncate fs/open.c:128 [inline]
__do_sys_truncate fs/open.c:146 [inline]
__se_sys_truncate fs/open.c:144 [inline]
__x64_sys_truncate+0x6d/0xa0 fs/open.c:144
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f55987762c9
RSP: 002b:00007ffe4f41e918 EFLAGS: 00000246
ORIG_RAX: 000000000000004c
RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f55987762c9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000100
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 00007ffe4f41e7e0 R11: 0000000000000246 R12: 00007f55987354a0
R13: 00007ffe4f41e940 R14: 00007ffe4f41e92c R15: 00007ffe4f41e930
INFO: task syz-executor140:5074 blocked for more than 153 seconds.
Not tainted 6.2.0-rc6-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor140 state:D
stack:26552 pid:5074 ppid:5066 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5293 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6606
schedule+0xde/0x1b0 kernel/sched/core.c:6682
d_wait_lookup fs/dcache.c:2625 [inline]
d_alloc_parallel+0xd85/0x1410 fs/dcache.c:2707
__lookup_slow+0x193/0x460 fs/namei.c:1670
lookup_slow fs/namei.c:1702 [inline]
walk_component+0x33f/0x5a0 fs/namei.c:1993
lookup_last fs/namei.c:2450 [inline]
path_lookupat+0x1ba/0x840 fs/namei.c:2474
filename_lookup+0x1d2/0x590 fs/namei.c:2503