INFO: task syz-executor.3:30103 blocked for more than 143 seconds.
Not tainted 6.1.0-rc2-syzkaller-00070-g4dc12f37a8e9 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D
stack:27624 pid:30103 ppid:3641 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
schedule+0xda/0x1b0 kernel/sched/core.c:6579
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x1ca/0x5c0 kernel/sched/completion.c:106
f2fs_issue_checkpoint+0x358/0x460 fs/f2fs/checkpoint.c:1882
f2fs_sync_fs+0x240/0x4c0 fs/f2fs/super.c:1656
sync_fs_one_sb fs/sync.c:84 [inline]
sync_fs_one_sb+0x107/0x140 fs/sync.c:80
iterate_supers+0x13c/0x290 fs/super.c:723
ksys_sync+0xa8/0x150 fs/sync.c:104
__do_sys_sync+0xa/0x10 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f529f88b5a9
RSP: 002b:00007f52a0629168 EFLAGS: 00000246
ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f529f9ac050 RCX: 00007f529f88b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f529f8e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc5e5dfd7f R14: 00007f52a0629300 R15: 0000000000022000
INFO: task syz-executor.1:30116 blocked for more than 144 seconds.
Not tainted 6.1.0-rc2-syzkaller-00070-g4dc12f37a8e9 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D
stack:29136 pid:30116 ppid:3640 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
schedule+0xda/0x1b0 kernel/sched/core.c:6579
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x1ca/0x5c0 kernel/sched/completion.c:106
f2fs_issue_checkpoint+0x358/0x460 fs/f2fs/checkpoint.c:1882
f2fs_sync_fs+0x240/0x4c0 fs/f2fs/super.c:1656
sync_fs_one_sb fs/sync.c:84 [inline]
sync_fs_one_sb+0x107/0x140 fs/sync.c:80
iterate_supers+0x13c/0x290 fs/super.c:723
ksys_sync+0xa8/0x150 fs/sync.c:104
__do_sys_sync+0xa/0x10 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f329e28b5a9
RSP: 002b:00007f329ef58168 EFLAGS: 00000246
ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f329e3ac050 RCX: 00007f329e28b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f329e2e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe1ed9657f R14: 00007f329ef58300 R15: 0000000000022000
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.1.0-rc2-syzkaller-00070-g4dc12f37a8e9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x32f/0x3c0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xc71/0xfc0 kernel/hung_task.c:377
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 30094 Comm: f2fs_ckpt-7:3 Not tainted 6.1.0-rc2-syzkaller-00070-g4dc12f37a8e9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
RIP: 0010:io_serial_in+0x83/0xa0 drivers/tty/serial/8250/8250_port.c:461
Code: 3a 19 fd 48 8d 7d 40 44 89 e1 48 b8 00 00 00 00 00 fc ff df 48 89 fa d3 e3 48 c1 ea 03 80 3c 02 00 75 16 66 03 5d 40 89 da ec <5b> 0f b6 c0 5d 41 5c c3 e8 10 8a 65 fd eb a6 e8 39 8a 65 fd eb e3
RSP: 0018:ffffc9000ac76ac0 EFLAGS: 00000006
RAX: dffffc0000000005 RBX: 00000000000003f9 RCX: 0000000000000000
RDX: 00000000000003f9 RSI: ffffffff8463626c RDI: ffffffff914cd200
RBP: ffffffff914cd1c0 R08: 0000000000000001 R09: 000000000000001f
R10: 0000000000000000 R11: 6572617764726148 R12: 0000000000000000
R13: ffffffff914cd1c0 R14: ffffffff914cd470 R15: ffffffff914cd210
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c01b476f70 CR3: 000000001bf04000 CR4: 0000000000350ee0
Call Trace:
serial_port_in include/linux/serial_core.h:588 [inline]
serial8250_console_write+0x1ba/0x1010 drivers/tty/serial/8250/8250_port.c:3397
call_console_driver kernel/printk/printk.c:1942 [inline]
console_emit_next_record.constprop.0+0x3de/0x840 kernel/printk/printk.c:2731
console_flush_all kernel/printk/printk.c:2793 [inline]
console_unlock+0x3be/0x600 kernel/printk/printk.c:2860
vprintk_emit+0x1b9/0x5f0 kernel/printk/printk.c:2268
vprintk+0x80/0x90 kernel/printk/printk_safe.c:50
_printk+0xba/0xed kernel/printk/printk.c:2289
printk_stack_address arch/x86/kernel/dumpstack.c:72 [inline]
show_trace_log_lvl+0x221/0x2ba arch/x86/kernel/dumpstack.c:282
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
f2fs_is_valid_blkaddr.cold+0x54/0x18a fs/f2fs/checkpoint.c:205
f2fs_do_write_data_page+0x658/0x1e00 fs/f2fs/data.c:2666
f2fs_write_single_data_page+0x14fd/0x1910 fs/f2fs/data.c:2822
f2fs_write_cache_pages+0xaa8/0x2000 fs/f2fs/data.c:3097
__f2fs_write_data_pages fs/f2fs/data.c:3247 [inline]
f2fs_write_data_pages+0x4c3/0x1230 fs/f2fs/data.c:3274
do_writepages+0x1ab/0x690 mm/page-writeback.c:2469
filemap_fdatawrite_wbc mm/filemap.c:388 [inline]
filemap_fdatawrite_wbc+0x143/0x1b0 mm/filemap.c:378
__filemap_fdatawrite_range+0xb4/0xf0 mm/filemap.c:421
f2fs_sync_dirty_inodes+0x2b8/0x10a0 fs/f2fs/checkpoint.c:1108
block_operations+0x287/0xc40 fs/f2fs/checkpoint.c:1241
f2fs_write_checkpoint+0x602/0x4c80 fs/f2fs/checkpoint.c:1650
__write_checkpoint_sync fs/f2fs/checkpoint.c:1767 [inline]
__checkpoint_and_complete_reqs+0xea/0x350 fs/f2fs/checkpoint.c:1786
issue_checkpoint_thread+0xdf/0x250 fs/f2fs/checkpoint.c:1817
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306