INFO: task syz-executor.2:29305 blocked for more than 145 seconds.
Not tainted 6.6.0-rc4-syzkaller-00029-gcbf3a2cb156a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:23096 pid:29305 ppid:28163 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x196c/0x4af0 kernel/sched/core.c:6695
schedule+0xc3/0x180 kernel/sched/core.c:6771
schedule_timeout+0xb0/0x300 kernel/time/timer.c:2143
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion+0x354/0x620 kernel/sched/completion.c:148
fuse_direct_IO+0xb11/0x1430 fs/fuse/file.c:2959
fuse_direct_write_iter fs/fuse/file.c:1604 [inline]
fuse_file_write_iter+0x950/0xf50 fs/fuse/file.c:1652
call_write_iter include/linux/fs.h:1956 [inline]
aio_write+0x590/0x7e0 fs/aio.c:1582
io_submit_one+0x8a7/0x18a0 fs/aio.c:2001
__do_sys_io_submit fs/aio.c:2060 [inline]
__se_sys_io_submit+0x17f/0x2f0 fs/aio.c:2030
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fc5e447cae9
RSP: 002b:00007fc5e51b80c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
RAX: ffffffffffffffda RBX: 00007fc5e459c050 RCX: 00007fc5e447cae9
RDX: 0000000020000780 RSI: 0000000000000002 RDI: 00007fc5e518f000
RBP: 00007fc5e44c847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fc5e459c050 R15: 00007ffcaee71168
</TASK>
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8d32c420 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:303 [inline]
#0: ffffffff8d32c420 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:749 [inline]
#0: ffffffff8d32c420 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6613
2 locks held by getty/4791:
#0: ffff88802a66a0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b1/0x1dc0 drivers/tty/n_tty.c:2206
3 locks held by kworker/0:2/18489:
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline]
#0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1400 kernel/workqueue.c:2703
#1: ffffc90004797d20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2605 [inline]
#1: ffffc90004797d20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x825/0x1400 kernel/workqueue.c:2703
#2: ffffffff8e4d43c8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:277
3 locks held by kworker/u4:14/23547:
2 locks held by kworker/u4:29/23610:
5 locks held by kworker/u4:2/28446:
1 lock held by syz-executor.2/29305:
#0: ffff88801d5b9590 (&sb->s_type->i_mutex_key#30){+.+.}-{3:3}, at: fuse_file_write_iter+0x71f/0xf50 fs/fuse/file.c:1652
1 lock held by syz-executor.2/30380:
2 locks held by syz-executor.5/30398:
#0: ffffffff8e4d43c8 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:697 [inline]
#0: ffffffff8e4d43c8 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x1b0 drivers/net/tun.c:3496
#1: ffffffff8d331db8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#1: ffffffff8d331db8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a3/0x890 kernel/rcu/tree_exp.h:992
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.6.0-rc4-syzkaller-00029-gcbf3a2cb156a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x310 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xfa9/0xff0 kernel/hung_task.c:379
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
</TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 29413 Comm: syz-executor.2 Not tainted 6.6.0-rc4-syzkaller-00029-gcbf3a2cb156a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline]
RIP: 0010:static_key_false include/linux/jump_label.h:207 [inline]
RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:147 [inline]
RIP: 0010:wrmsr arch/x86/include/asm/msr.h:254 [inline]
RIP: 0010:native_apic_msr_write+0x39/0x50 arch/x86/include/asm/apic.h:195
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 f3 0f 1e fa 89 f6 31 d2 e9 b7 21 3c 03 0f 1f 80 00 00 00
RSP: 0018:ffffc900039ffb68 EFLAGS: 00000046
RAX: 000000000000ff72 RBX: ffff8880b99281f4 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 000000000000ff72 RDI: 0000000000000838
RBP: 000000000000ff72 R08: ffffffff81804961 R09: 1ffffffff1d34fd5
R10: dffffc0000000000 R11: fffffbfff1d34fd6 R12: ffff8880b99281c0
R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000020
FS: 0000555555a9e480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff113ed827d CR3: 000000007d115000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<NMI>
</NMI>
<TASK>
apic_write arch/x86/include/asm/apic.h:402 [inline]
lapic_next_event+0x11/0x20 arch/x86/kernel/apic/apic.c:446
clockevents_program_event+0x1c9/0x310 kernel/time/clockevents.c:334
hrtimer_start_range_ns+0xac1/0xc60 kernel/time/hrtimer.c:1302
hrtimer_start_expires include/linux/hrtimer.h:432 [inline]
hrtimer_sleeper_start_expires kernel/time/hrtimer.c:1968 [inline]
do_nanosleep+0x157/0x5f0 kernel/time/hrtimer.c:2044
hrtimer_nanosleep+0x226/0x460 kernel/time/hrtimer.c:2100
__do_sys_clock_nanosleep kernel/time/posix-timers.c:1396 [inline]
__se_sys_clock_nanosleep+0x327/0x3b0 kernel/time/posix-timers.c:1373
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa9960a7ef5
Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 f6 b9 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 4f ba ff ff 48 8b 04 24 48 83 c4 28 f7 d8
RSP: 002b:00007ffdff7edb90 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 0000000000000087 RCX: 00007fa9960a7ef5
RDX: 00007ffdff7edbd0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007ffdff7edc5c R08: 0000000000000000 R09: 00007ffdff7f20b0
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032
R13: 000000000028a3dc R14: 000000000028a3dc R15: 0000000000000000
</TASK>