INFO: task syz-executor.1:11341 blocked for more than 143 seconds.
Not tainted 5.17.0-syzkaller-13993-g88e6c0207623 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:26960 pid:11341 ppid: 3589 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6382
schedule+0xd2/0x1f0 kernel/sched/core.c:6454
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x373/0x530 kernel/sched/completion.c:106
io_wq_exit_workers fs/io-wq.c:1266 [inline]
io_wq_put_and_exit+0x4d6/0xe40 fs/io-wq.c:1301
io_uring_clean_tctx fs/io_uring.c:10599 [inline]
io_uring_cancel_generic+0x60b/0x695 fs/io_uring.c:10669
io_uring_files_cancel include/linux/io_uring.h:18 [inline]
do_exit+0x4f9/0x2a00 kernel/exit.c:750
do_group_exit+0xd2/0x2f0 kernel/exit.c:925
get_signal+0x22df/0x24c0 kernel/signal.c:2904
arch_do_signal_or_restart+0x88/0x1a10 arch/x86/kernel/signal.c:867
exit_to_user_mode_loop kernel/entry/common.c:180 [inline]
exit_to_user_mode_prepare+0x15f/0x250 kernel/entry/common.c:215
__syscall_exit_to_user_mode_work kernel/entry/common.c:297 [inline]
syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:308
do_syscall_64+0x42/0x80 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fa840e89049
RSP: 002b:00007fa841f61218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fa840f9bf68 RCX: 00007fa840e89049
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fa840f9bf68
RBP: 00007fa840f9bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa840f9bf6c
R13: 00007ffe490dc5ff R14: 00007fa841f61300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/28:
#0: ffffffff8bd81f60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6467
2 locks held by syslogd/2913:
#0: ffff8880b9d39fd8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:554
#1: ffff8880b9c278c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3e7/0x4e0 kernel/sched/psi.c:889
2 locks held by getty/3242:
#0: ffff88801e24a098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002e662e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcea/0x1230 drivers/tty/n_tty.c:2075
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.17.0-syzkaller-13993-g88e6c0207623 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:369
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 7576 Comm: kworker/u4:13 Not tainted 5.17.0-syzkaller-13993-g88e6c0207623 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_nc_worker
RIP: 0010:lock_acquire kernel/locking/lockdep.c:5644 [inline]
RIP: 0010:lock_acquire+0x1d3/0x510 kernel/locking/lockdep.c:5606
Code: ff ff 48 c7 c7 20 47 cc 89 48 83 c4 20 e8 85 11 01 08 b8 ff ff ff ff 65 0f c1 05 30 12 a5 7e 83 f8 01 0f 85 b4 02 00 00 9c 58 c4 02 0f 85 9f 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00
RSP: 0018:ffffc9000533fb98 EFLAGS: 00000046
RAX: 0000000000000046 RBX: 1ffff92000a67f75 RCX: 2106ad44eb95f819
RDX: 1ffff11004c3d88b RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff9002a907
R10: fffffbfff2005520 R11: 0000000000000001 R12: 0000000000000002
R13: 0000000000000000 R14: ffffffff8bd81f60 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffeb9016228 CR3: 000000000ba8e000 CR4: 0000000000350ee0
Call Trace:
rcu_lock_acquire include/linux/rcupdate.h:268 [inline]
rcu_read_lock include/linux/rcupdate.h:694 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0x12d/0xfa0 net/batman-adv/network-coding.c:719
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
----------------
Code disassembly (best guess), 2 bytes skipped:
0: 48 c7 c7 20 47 cc 89 mov $0xffffffff89cc4720,%rdi
7: 48 83 c4 20 add $0x20,%rsp
b: e8 85 11 01 08 callq 0x8011195
10: b8 ff ff ff ff mov $0xffffffff,%eax
15: 65 0f c1 05 30 12 a5 xadd %eax,%gs:0x7ea51230(%rip) # 0x7ea5124d
1c: 7e
1d: 83 f8 01 cmp $0x1,%eax
20: 0f 85 b4 02 00 00 jne 0x2da
26: 9c pushfq
27: 58 pop %rax
* 28: f6 c4 02 test $0x2,%ah <-- trapping instruction
2b: 0f 85 9f 02 00 00 jne 0x2d0
31: 48 83 7c 24 08 00 cmpq $0x0,0x8(%rsp)
37: 74 01 je 0x3a
39: fb sti
3a: 48 rex.W
3b: b8 .byte 0xb8