INFO: task syz-executor.4:5991 blocked for more than 143 seconds.
Not tainted 6.1.0-rc3-syzkaller-00280-g64c3dd0b98f5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:22808 pid:5991 ppid:3638 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
coredump_task_exit+0x28f/0x360 kernel/exit.c:385
do_exit+0x1fd/0x2070 kernel/exit.c:770
do_group_exit+0x1fd/0x2b0 kernel/exit.c:950
get_signal+0x16ec/0x17b0 kernel/signal.c:2858
arch_do_signal_or_restart+0x7b/0x730 arch/x86/kernel/signal.c:869
exit_to_user_mode_loop+0x74/0x150 kernel/entry/common.c:168
exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:296
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff527c8b6b7
RSP: 002b:00007ffd67003c28 EFLAGS: 00000206 ORIG_RAX: 000000000000000a
RAX: 0000000000000000 RBX: 0000000000021000 RCX: 00007ff527c8b6b7
RDX: 0000000000000003 RSI: 0000000000020000 RDI: 00007ff528964000
RBP: 00007ffd67003d00 R08: 00000000ffffffff R09: 00007ff528983700
R10: 0000000000020022 R11: 0000000000000206 R12: 00007ffd67003e20
R13: 00007ff528983700 R14: 0000000000000000 R15: 0000000000022000
INFO: task syz-executor.4:5995 blocked for more than 144 seconds.
Not tainted 6.1.0-rc3-syzkaller-00280-g64c3dd0b98f5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:25784 pid:5995 ppid:3638 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
coredump_task_exit+0x28f/0x360 kernel/exit.c:385
do_exit+0x1fd/0x2070 kernel/exit.c:770
do_group_exit+0x1fd/0x2b0 kernel/exit.c:950
get_signal+0x16ec/0x17b0 kernel/signal.c:2858
arch_do_signal_or_restart+0x7b/0x730 arch/x86/kernel/signal.c:869
exit_to_user_mode_loop+0x74/0x150 kernel/entry/common.c:168
exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:296
ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:299
RIP: 0033:0x7ff527c8c9d1
RSP: 002b:00007ff528a6a2f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: 0000000000000000 RBX: 00007ff528a6a700 RCX: 00007ff527c8c9d1
RDX: 00007ff528a6a9d0 RSI: 00007ff528a6a2f0 RDI: 00000000003d0f00
RBP: 00007ffd67003e20 R08: 00007ff528a6a700 R09: 00007ff528a6a700
R10: 00007ff528a6a9d0 R11: 0000000000000206 R12: 00007ffd67003c8e
R13: 00007ffd67003c8f R14: 00007ff528a6a300 R15: 0000000000022000
INFO: task syz-executor.4:5996 blocked for more than 145 seconds.
Not tainted 6.1.0-rc3-syzkaller-00280-g64c3dd0b98f5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:25784 pid:5996 ppid:3638 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
coredump_task_exit+0x28f/0x360 kernel/exit.c:385
do_exit+0x1fd/0x2070 kernel/exit.c:770
do_group_exit+0x1fd/0x2b0 kernel/exit.c:950
get_signal+0x16ec/0x17b0 kernel/signal.c:2858
arch_do_signal_or_restart+0x7b/0x730 arch/x86/kernel/signal.c:869
exit_to_user_mode_loop+0x74/0x150 kernel/entry/common.c:168
exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:296
ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:299
RIP: 0033:0x7ff527c8c9d1
RSP: 002b:00007ff528a492f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: 0000000000000000 RBX: 00007ff528a49700 RCX: 00007ff527c8c9d1
RDX: 00007ff528a499d0 RSI: 00007ff528a492f0 RDI: 00000000003d0f00
RBP: 00007ffd67003e20 R08: 00007ff528a49700 R09: 00007ff528a49700
R10: 00007ff528a499d0 R11: 0000000000000206 R12: 00007ffd67003c8e
R13: 00007ffd67003c8f R14: 00007ff528a49300 R15: 0000000000022000
INFO: task syz-executor.4:5997 blocked for more than 146 seconds.
Not tainted 6.1.0-rc3-syzkaller-00280-g64c3dd0b98f5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:25784 pid:5997 ppid:3638 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
coredump_task_exit+0x28f/0x360 kernel/exit.c:385
do_exit+0x1fd/0x2070 kernel/exit.c:770
do_group_exit+0x1fd/0x2b0 kernel/exit.c:950
get_signal+0x16ec/0x17b0 kernel/signal.c:2858
arch_do_signal_or_restart+0x7b/0x730 arch/x86/kernel/signal.c:869
exit_to_user_mode_loop+0x74/0x150 kernel/entry/common.c:168
exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:296
ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:299
RIP: 0033:0x7ff527c8c9d1
RSP: 002b:00007ff528a282f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: 0000000000000000 RBX: 00007ff528a28700 RCX: 00007ff527c8c9d1
RDX: 00007ff528a289d0 RSI: 00007ff528a282f0 RDI: 00000000003d0f00
RBP: 00007ffd67003e20 R08: 00007ff528a28700 R09: 00007ff528a28700
R10: 00007ff528a289d0 R11: 0000000000000206 R12: 00007ffd67003c8e
R13: 00007ffd67003c8f R14: 00007ff528a28300 R15: 0000000000022000
INFO: task syz-executor.4:5998 blocked for more than 147 seconds.
Not tainted 6.1.0-rc3-syzkaller-00280-g64c3dd0b98f5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:25784 pid:5998 ppid:3638 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
coredump_task_exit+0x28f/0x360 kernel/exit.c:385
do_exit+0x1fd/0x2070 kernel/exit.c:770
do_group_exit+0x1fd/0x2b0 kernel/exit.c:950
get_signal+0x16ec/0x17b0 kernel/signal.c:2858
arch_do_signal_or_restart+0x7b/0x730 arch/x86/kernel/signal.c:869
exit_to_user_mode_loop+0x74/0x150 kernel/entry/common.c:168
exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:296
ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:299
RIP: 0033:0x7ff527c8c9d1
RSP: 002b:00007ff528a072f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: 0000000000000000 RBX: 00007ff528a07700 RCX: 00007ff527c8c9d1
RDX: 00007ff528a079d0 RSI: 00007ff528a072f0 RDI: 00000000003d0f00
RBP: 00007ffd67003e20 R08: 00007ff528a07700 R09: 00007ff528a07700
R10: 00007ff528a079d0 R11: 0000000000000206 R12: 00007ffd67003c8e
R13: 00007ffd67003c8f R14: 00007ff528a07300 R15: 0000000000022000
INFO: task syz-executor.4:5999 blocked for more than 148 seconds.
Not tainted 6.1.0-rc3-syzkaller-00280-g64c3dd0b98f5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:25784 pid:5999 ppid:3638 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
coredump_task_exit+0x28f/0x360 kernel/exit.c:385
do_exit+0x1fd/0x2070 kernel/exit.c:770
do_group_exit+0x1fd/0x2b0 kernel/exit.c:950
get_signal+0x16ec/0x17b0 kernel/signal.c:2858
arch_do_signal_or_restart+0x7b/0x730 arch/x86/kernel/signal.c:869
exit_to_user_mode_loop+0x74/0x150 kernel/entry/common.c:168
exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:296
ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:299
RIP: 0033:0x7ff527c8c9d1
RSP: 002b:00007ff5289e62f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: 0000000000000000 RBX: 00007ff5289e6700 RCX: 00007ff527c8c9d1
RDX: 00007ff5289e69d0 RSI: 00007ff5289e62f0 RDI: 00000000003d0f00
RBP: 00007ffd67003e20 R08: 00007ff5289e6700 R09: 00007ff5289e6700
R10: 00007ff5289e69d0 R11: 0000000000000206 R12: 00007ffd67003c8e
R13: 00007ffd67003c8f R14: 00007ff5289e6300 R15: 0000000000022000
INFO: task syz-executor.4:6000 blocked for more than 149 seconds.
Not tainted 6.1.0-rc3-syzkaller-00280-g64c3dd0b98f5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:25784 pid:6000 ppid:3638 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
coredump_task_exit+0x28f/0x360 kernel/exit.c:385
do_exit+0x1fd/0x2070 kernel/exit.c:770
do_group_exit+0x1fd/0x2b0 kernel/exit.c:950
get_signal+0x16ec/0x17b0 kernel/signal.c:2858
arch_do_signal_or_restart+0x7b/0x730 arch/x86/kernel/signal.c:869
exit_to_user_mode_loop+0x74/0x150 kernel/entry/common.c:168
exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:296
ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:299
RIP: 0033:0x7ff527c8c9d1
RSP: 002b:00007ff5289c52f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: 0000000000000000 RBX: 00007ff5289c5700 RCX: 00007ff527c8c9d1
RDX: 00007ff5289c59d0 RSI: 00007ff5289c52f0 RDI: 00000000003d0f00
RBP: 00007ffd67003e20 R08: 00007ff5289c5700 R09: 00007ff5289c5700
R10: 00007ff5289c59d0 R11: 0000000000000206 R12: 00007ffd67003c8e
R13: 00007ffd67003c8f R14: 00007ff5289c5300 R15: 0000000000022000
INFO: task syz-executor.4:6001 blocked for more than 150 seconds.
Not tainted 6.1.0-rc3-syzkaller-00280-g64c3dd0b98f5 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:25528 pid:6001 ppid:3638 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0x8c9/0xd70 kernel/sched/core.c:6503
schedule+0xcb/0x190 kernel/sched/core.c:6579
coredump_task_exit+0x28f/0x360 kernel/exit.c:385
do_exit+0x1fd/0x2070 kernel/exit.c:770
do_group_exit+0x1fd/0x2b0 kernel/exit.c:950
get_signal+0x16ec/0x17b0 kernel/signal.c:2858
arch_do_signal_or_restart+0x7b/0x730 arch/x86/kernel/signal.c:869
exit_to_user_mode_loop+0x74/0x150 kernel/entry/common.c:168
exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:203
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:296
ret_from_fork+0x15/0x30 arch/x86/entry/entry_64.S:299
RIP: 0033:0x7ff527c8c9d1
RSP: 002b:00007ff5289a42f0 EFLAGS: 00000206 ORIG_RAX: 0000000000000038
RAX: 0000000000000000 RBX: 00007ff5289a4700 RCX: 00007ff527c8c9d1
RDX: 00007ff5289a49d0 RSI: 00007ff5289a42f0 RDI: 00000000003d0f00
RBP: 00007ffd67003e20 R08: 00007ff5289a4700 R09: 00007ff5289a4700
R10: 00007ff5289a49d0 R11: 0000000000000206 R12: 00007ffd67003c8e
R13: 00007ffd67003c8f R14: 00007ff5289a4300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cb22630 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8cb22e30 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8cb22460 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3286:
#0: ffff888027bd9098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1650 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.2/3637:
#0: ffffffff8cb27a38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline]
#0: ffffffff8cb27a38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x384/0x860 kernel/rcu/tree_exp.h:946
2 locks held by kworker/1:10/4004:
#0: ffff888012066538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
#1: ffffc90005a9fd00 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
6 locks held by syz-executor.4/5993:
1 lock held by segctord/5994:
#0: ffff888031cc92a0 (&nilfs->ns_segctor_sem){++++}-{3:3}, at: nilfs_transaction_lock+0x246/0x4b0 fs/nilfs2/segment.c:357
4 locks held by syz-executor.1/8997:
1 lock held by syz-executor.0/9005:
#0: ffff88814b48e460 (sb_writers#4){.+.+}-{0:0}, at: do_sendfile+0x5d6/0xf80 fs/read_write.c:1254
1 lock held by syz-executor.3/9009:
#0: ffff88814b48e460 (sb_writers#4){.+.+}-{0:0}, at: do_sendfile+0x5d6/0xf80 fs/read_write.c:1254
2 locks held by syz-executor.3/9010:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc3-syzkaller-00280-g64c3dd0b98f5 #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+0x1b1/0x28e lib/dump_stack.c:106
nmi_cpu_backtrace+0x46f/0x4f0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1ba/0x420 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+0xcf5/0xd40 kernel/hung_task.c:377
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 11 Comm: kworker/u4:1 Not tainted 6.1.0-rc3-syzkaller-00280-g64c3dd0b98f5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: bat_events batadv_nc_worker
RIP: 0010:match_held_lock+0x0/0xb0 kernel/locking/lockdep.c:5113
Code: 56 ff ff ff 31 db 48 c7 c7 60 86 8d 8a 48 c7 c6 a0 86 8d 8a 31 c0 e8 3f 68 1b f7 0f 0b e9 38 ff ff ff e8 c3 fa ff ff 0f 1f 00 <55> 53 bd 01 00 00 00 48 39 77 10 74 67 48 89 fb 81 7f 20 00 00 10
RSP: 0018:ffffc90000007770 EFLAGS: 00000083
RAX: 0000000000000006 RBX: 0000000000000001 RCX: 0000000080010004
RDX: 0000000000000000 RSI: ffffffff8cb223e0 RDI: ffff8880122344f8
RBP: ffff8880122344f8 R08: dffffc0000000000 R09: fffffbfff1c1b84e
R10: fffffbfff1c1b84e R11: 1ffffffff1c1b84d R12: 0000000000000046
R13: ffff888012233a80 R14: 00000000ffffffff R15: ffffffff8cb223e0
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c019df6020 CR3: 000000002eeac000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__lock_is_held kernel/locking/lockdep.c:5409 [inline]
lock_is_held_type+0xa1/0x180 kernel/locking/lockdep.c:5711
lock_is_held include/linux/lockdep.h:283 [inline]
rcu_read_lock_sched_held+0x87/0x110 kernel/rcu/update.c:125
trace_lock_release+0x95/0x220 include/trace/events/lock.h:69
lock_release+0x81/0x820 kernel/locking/lockdep.c:5679
do_write_seqcount_end include/linux/seqlock.h:561 [inline]
psi_group_change+0xad5/0x1220 kernel/sched/psi.c:785
psi_task_change+0x244/0x3f0 kernel/sched/psi.c:833
psi_enqueue kernel/sched/stats.h:141 [inline]
enqueue_task kernel/sched/core.c:2056 [inline]
activate_task+0x350/0x400 kernel/sched/core.c:2085
ttwu_do_activate+0x183/0x2b0 kernel/sched/core.c:3664
ttwu_queue+0x170/0x310 kernel/sched/core.c:3869
try_to_wake_up+0x4e6/0xac0 kernel/sched/core.c:4192
hrtimer_wakeup+0x5e/0x70 kernel/time/hrtimer.c:1939
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x50b/0xa60 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x3a6/0xfd0 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
__sysvec_apic_timer_interrupt+0xf9/0x280 arch/x86/kernel/apic/apic.c:1113
sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1107
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:__rcu_read_unlock+0x1/0x100 kernel/rcu/tree_plugin.h:417
Code: 00 eb b2 44 89 f9 80 e1 07 80 c1 03 38 c1 7c b0 4c 89 ff e8 e1 3e 6a 00 eb a6 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 <41> 57 41 56 41 55 41 54 53 49 bc 00 00 00 00 00 fc ff df 65 4c 8b