INFO: task syz-executor.3:11041 blocked for more than 143 seconds.
Not tainted 6.3.0-rc4-syzkaller-00016-g91fe204578ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:28104 pid:11041 ppid:5124 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0xc91/0x5770 kernel/sched/core.c:6625
schedule+0xde/0x1a0 kernel/sched/core.c:6701
coredump_task_exit kernel/exit.c:432 [inline]
do_exit+0x3fc/0x2960 kernel/exit.c:819
do_group_exit+0xd4/0x2a0 kernel/exit.c:1019
get_signal+0x2315/0x25b0 kernel/signal.c:2859
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f68f088c0f9
RSP: 002b:00007fffaffd41e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffdfc RBX: 00007f68f09ac1fc RCX: 00007f68f088c0f9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f68f09ac1fc
RBP: 00007f68f09abf80 R08: 00007fffaffed080 R09: 0000000000000270
R10: 00007fffaffd42d0 R11: 0000000000000246 R12: 0000000000234c4c
R13: 00007fffaffd42d0 R14: 00007fffaffd42f0 R15: 0000000000000032
INFO: task syz-executor.3:11042 blocked for more than 143 seconds.
Not tainted 6.3.0-rc4-syzkaller-00016-g91fe204578ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:24184 pid:11042 ppid:5124 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0xc91/0x5770 kernel/sched/core.c:6625
schedule+0xde/0x1a0 kernel/sched/core.c:6701
coredump_task_exit kernel/exit.c:432 [inline]
do_exit+0x3fc/0x2960 kernel/exit.c:819
do_group_exit+0xd4/0x2a0 kernel/exit.c:1019
get_signal+0x2315/0x25b0 kernel/signal.c:2859
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f68f088c0f9
RSP: 002b:00007f68f15da168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: 0000000000c0a000 RBX: 00007f68f09abf80 RCX: 00007f68f088c0f9
RDX: 000000000208e24b RSI: 0000000020000400 RDI: 0000000000000004
RBP: 00007f68f08e7b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffaffd416f R14: 00007f68f15da300 R15: 0000000000022000
INFO: task syz-executor.3:11046 blocked for more than 144 seconds.
Not tainted 6.3.0-rc4-syzkaller-00016-g91fe204578ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:29528 pid:11046 ppid:5124 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0xc91/0x5770 kernel/sched/core.c:6625
schedule+0xde/0x1a0 kernel/sched/core.c:6701
coredump_task_exit kernel/exit.c:432 [inline]
do_exit+0x3fc/0x2960 kernel/exit.c:819
do_group_exit+0xd4/0x2a0 kernel/exit.c:1019
get_signal+0x2315/0x25b0 kernel/signal.c:2859
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f68f088c0f9
RSP: 002b:00007f68f15b9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: fffffffffffffffc RBX: 00007f68f09ac050 RCX: 00007f68f088c0f9
RDX: 0000000000000020 RSI: 0000000020000700 RDI: 0000000000000004
RBP: 00007f68f08e7b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffaffd416f R14: 00007f68f15b9300 R15: 0000000000022000
INFO: task syz-executor.3:11047 blocked for more than 144 seconds.
Not tainted 6.3.0-rc4-syzkaller-00016-g91fe204578ba #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:29528 pid:11047 ppid:5124 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0xc91/0x5770 kernel/sched/core.c:6625
schedule+0xde/0x1a0 kernel/sched/core.c:6701
coredump_task_exit kernel/exit.c:432 [inline]
do_exit+0x3fc/0x2960 kernel/exit.c:819
do_group_exit+0xd4/0x2a0 kernel/exit.c:1019
get_signal+0x2315/0x25b0 kernel/signal.c:2859
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:306
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f68f088c0f9
RSP: 002b:00007f68f1598168 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 00007f68f09ac120 RCX: 00007f68f088c0f9
RDX: 0000000000002020 RSI: 0000000020000740 RDI: 0000000000000004
RBP: 00007f68f08e7b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffaffd416f R14: 00007f68f1598300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c794a70 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c794770 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510
1 lock held by khungtaskd/28:
#0: ffffffff8c7955c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6495
2 locks held by getty/4753:
#0: ffff88802bb54098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900015b02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
4 locks held by kworker/u4:4/365:
#0: ffff88814498e938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88814498e938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff88814498e938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff88814498e938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline]
#0: ffff88814498e938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline]
#0: ffff88814498e938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x87a/0x15c0 kernel/workqueue.c:2361
#1: ffffc90006827da8 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x15c0 kernel/workqueue.c:2365
#2: ffff8880238ca0e0 (&type->s_umount_key#98){++++}-{3:3}, at: trylock_super+0x21/0x110 fs/super.c:414
#3: ffff888020a292a8 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2207 [inline]
#3: ffff888020a292a8 (&sbi->gc_lock){+.+.}-{3:3}, at: f2fs_balance_fs+0x54e/0x6c0 fs/f2fs/segment.c:427
3 locks held by kworker/u4:17/3386:
2 locks held by syz-executor.3/11048:
2 locks held by syz-executor.3/12280:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.3.0-rc4-syzkaller-00016-g91fe204578ba #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
nmi_cpu_backtrace+0x29c/0x350 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x2a4/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xe16/0x1090 kernel/hung_task.c:379
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 9025 Comm: kworker/u4:8 Not tainted 6.3.0-rc4-syzkaller-00016-g91fe204578ba #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Workqueue: phy8 ieee80211_iface_work
RIP: 0010:__lock_acquire+0x383/0x5d40 kernel/locking/lockdep.c:4994
Code: 41 81 e6 00 00 03 00 41 c1 e7 13 41 c1 e1 14 41 09 c6 8b 44 24 08 48 c1 ea 03 c1 e0 12 25 00 00 04 00 41 09 c6 41 8b 44 24 20 <45> 09 f7 45 09 cf 25 ff 1f 00 00 41 09 c7 48 b8 00 00 00 00 00 fc
RSP: 0018:ffffc9001721f9d0 EFLAGS: 00000006
RAX: 00000000000c00a5 RBX: ffff88809fcfe130 RCX: 0000000000000000
RDX: 1ffff11010726c48 RSI: 0000000000000004 RDI: ffff888083936244
RBP: 0000000000000000 R08: 1ffff11010726c43 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888083936220
R13: ffff8880839357c0 R14: 0000000000040000 R15: 0000000000080000
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f24f2754110 CR3: 0000000039377000 CR4: 0000000000350ee0
Call Trace:
lock_acquire kernel/locking/lockdep.c:5669 [inline]
lock_acquire+0x1af/0x520 kernel/locking/lockdep.c:5634
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x3d/0x60 kernel/locking/spinlock.c:162
try_to_wake_up+0xab/0x1c40 kernel/sched/core.c:4162
wake_up_worker kernel/workqueue.c:859 [inline]
process_one_work+0x7b3/0x15c0 kernel/workqueue.c:2353
worker_thread+0x669/0x1090 kernel/workqueue.c:2537
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308