INFO: task syz-executor.2:18251 blocked for more than 143 seconds.
Not tainted 6.1.0-rc3-syzkaller-00299-g2f5065a0bc9d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D
stack:26528 pid:18251 ppid:8181 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:724
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: 0033:0x7f451a48b5a9
RSP: 002b:00007f451b13c168 EFLAGS: 00000246
ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f451a5abf80 RCX: 00007f451a48b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f451a4e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff8117339f R14: 00007f451b13c300 R15: 0000000000022000
INFO: task syz-executor.2:18263 blocked for more than 144 seconds.
Not tainted 6.1.0-rc3-syzkaller-00299-g2f5065a0bc9d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D
stack:29240 pid:18263 ppid:8181 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:724
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: 0033:0x7f451a48b5a9
RSP: 002b:00007f45197ff168 EFLAGS: 00000246
ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f451a5ac120 RCX: 00007f451a48b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f451a4e67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff8117339f R14: 00007f45197ff300 R15: 0000000000022000
INFO: task syz-executor.4:18274 blocked for more than 145 seconds.
Not tainted 6.1.0-rc3-syzkaller-00299-g2f5065a0bc9d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D
stack:29240 pid:18274 ppid:3639 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:724
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: 0033:0x7f60dbe8b5a9
RSP: 002b:00007f60dcbfa168 EFLAGS: 00000246
ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f60dbfac050 RCX: 00007f60dbe8b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f60dbee67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc4802205f R14: 00007f60dcbfa300 R15: 0000000000022000
INFO: task syz-executor.4:18275 blocked for more than 146 seconds.
Not tainted 6.1.0-rc3-syzkaller-00299-g2f5065a0bc9d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D
stack:29240 pid:18275 ppid:3639 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:724
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: 0033:0x7f60dbe8b5a9
RSP: 002b:00007f60dcbd9168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f60dbfac120 RCX: 00007f60dbe8b5a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f60dbee67b0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc4802205f R14: 00007f60dcbd9300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8bf87df0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8bf87af0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/27:
#0: ffffffff8bf88940 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6494
2 locks held by getty/3289:
#0:
ffff8880287f0098
(
&tty->ldisc_sem
){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900031262f0
(
&ldata->atomic_read_lock
){+.+.}-{3:3}
, at: n_tty_read+0xef0/0x13e0 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.2/18251:
#0:
ffff888072f160e0
(
&type->s_umount_key
#77){++++}-{3:3}, at: iterate_supers+0xdb/0x290 fs/super.c:722
1 lock held by syz-executor.2/18263:
#0: ffff888072f160e0 (&type->s_umount_key#77){++++}-{3:3}, at: iterate_supers+0xdb/0x290 fs/super.c:722
2 locks held by f2fs_ckpt-7:2/18259:
1 lock held by syz-executor.4/18274:
#0: ffff888072f160e0 (&type->s_umount_key#77){++++}-{3:3}, at: iterate_supers+0xdb/0x290 fs/super.c:722
1 lock held by syz-executor.4/18275:
#0: ffff888072f160e0 (&type->s_umount_key#77){++++}-{3:3}, at: iterate_supers+0xdb/0x290 fs/super.c:722
1 lock held by syz-executor.3/18332:
#0: ffff888072f160e0 (&type->s_umount_key#77){++++}-{3:3}, at: iterate_supers+0xdb/0x290 fs/super.c:722
1 lock held by syz-executor.3/18338:
#0:
ffff888072f160e0
(
&type->s_umount_key
#77
){++++}-{3:3}
, at: iterate_supers+0xdb/0x290 fs/super.c:722
1 lock held by syz-executor.3/18347:
#0:
ffff888072f160e0
(
&type->s_umount_key
#77
){++++}-{3:3}
, at: iterate_supers+0xdb/0x290 fs/super.c:722
1 lock held by syz-executor.3/18350:
#0:
ffff888072f160e0
(
&type->s_umount_key
#77
){++++}-{3:3}
, at: iterate_supers+0xdb/0x290 fs/super.c:722
1 lock held by syz-executor.4/18398:
#0:
ffff888072f160e0
(
&type->s_umount_key
#77
){++++}-{3:3}
, at: iterate_supers+0xdb/0x290 fs/super.c:722
1 lock held by syz-executor.4/18401:
#0:
ffff888072f160e0
(
&type->s_umount_key
#77
){++++}-{3:3}
, at: iterate_supers+0xdb/0x290 fs/super.c:722
1 lock held by syz-executor.2/18413:
#0:
ffff888072f160e0
(
&type->s_umount_key
#77
){++++}-{3:3}
, at: iterate_supers+0xdb/0x290 fs/super.c:722
1 lock held by syz-executor.2/18415:
#0:
ffff888072f160e0
(&type->s_umount_key#77){++++}-{3:3}, at: iterate_supers+0xdb/0x290 fs/super.c:722
1 lock held by syz-executor.2/18416:
#0:
ffff888072f160e0
(
&type->s_umount_key
#77
){++++}-{3:3}
, at: iterate_supers+0xdb/0x290 fs/super.c:722
1 lock held by syz-executor.2/18417:
#0:
ffff888072f160e0
(&type->s_umount_key
#77
){++++}-{3:3}
, at: iterate_supers+0xdb/0x290 fs/super.c:722
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.1.0-rc3-syzkaller-00299-g2f5065a0bc9d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
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: 18259 Comm: f2fs_ckpt-7:2 Not tainted 6.1.0-rc3-syzkaller-00299-g2f5065a0bc9d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:io_serial_out+0x8b/0xa0 drivers/tty/serial/8250/8250_port.c:467
Code: 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 18 66 03 5d 40 44 89 e8 89 da ee <5b> 5d 41 5c 41 5d c3 e8 c9 56 65 fd eb a4 e8 f2 56 65 fd eb e1 41
RSP: 0018:ffffc9001324eab8 EFLAGS: 00000002
RAX: 000000000000005b RBX: 00000000000003f8 RCX: 0000000000000000
RDX: 00000000000003f8 RSI: ffffffff8463a831 RDI: ffffffff914ce200
RBP: ffffffff914ce1c0 R08: 0000000000000001 R09: 000000000000001f
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 000000000000005b R14: ffffffff8463a7d0 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c0152cb330 CR3: 000000007a8ab000 CR4: 0000000000350ee0
Call Trace:
serial_out drivers/tty/serial/8250/8250.h:123 [inline]
serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3362 [inline]
serial8250_console_write+0xd0e/0x1010 drivers/tty/serial/8250/8250_port.c:3433
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