INFO: task syz-executor.0:5264 blocked for more than 143 seconds.
Not tainted 6.5.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:28128 pid:5264 ppid:5046 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0xc9a/0x5880 kernel/sched/core.c:6710
schedule+0xde/0x1a0 kernel/sched/core.c:6786
coredump_task_exit kernel/exit.c:436 [inline]
do_exit+0x3df/0x29a0 kernel/exit.c:823
do_group_exit+0xd4/0x2a0 kernel/exit.c:1024
get_signal+0x249b/0x25f0 kernel/signal.c:2877
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:308
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: 0033:0x7f04e2e8c389
RSP: 002b:00007fff3c40d5c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffdfc RBX: 00007f04e2fac05c RCX: 00007f04e2e8c389
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f04e2fac05c
RBP: 00007f04e2fabf80 R08: 00007fff3c586080 R09: 00000000000000d0
R10: 00007fff3c40d6b0 R11: 0000000000000246 R12: 0000000000019119
R13: 00007fff3c40d6b0 R14: 00007fff3c40d6d0 R15: 0000000000000032
INFO: task syz-executor.0:5268 blocked for more than 143 seconds.
Not tainted 6.5.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:27928 pid:5268 ppid:5046 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5381 [inline]
__schedule+0xc9a/0x5880 kernel/sched/core.c:6710
schedule+0xde/0x1a0 kernel/sched/core.c:6786
schedule_timeout+0x276/0x2b0 kernel/time/timer.c:2143
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x1ce/0x5c0 kernel/sched/completion.c:106
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion_state+0x1c/0x30 kernel/sched/completion.c:254
coredump_wait fs/coredump.c:414 [inline]
do_coredump+0x90b/0x4050 fs/coredump.c:571
get_signal+0x1c16/0x25f0 kernel/signal.c:2863
arch_do_signal_or_restart+0x79/0x5c0 arch/x86/kernel/signal.c:308
exit_to_user_mode_loop kernel/entry/common.c:168 [inline]
exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204
irqentry_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:310
exc_page_fault+0xc0/0x170 arch/x86/mm/fault.c:1545
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570
RIP: 0033:0x7f04e2e28cb3
RSP: 002b:00007f04e3b93158 EFLAGS: 00010216
RAX: 00007f04e2e28c90 RBX: 00007f04e2fac050 RCX: 0000000000000000
RDX: 00000000200001c0 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f04e2ed7493 R08: 00000000200001c0 R09: 0000000000000000
R10: 0000000000000000 R11: 00000000200001c0 R12: 0000000000000000
R13: 00007fff3c40d54f R14: 00007f04e3b93300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c9a0ab0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:522
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c9a07b0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:522
1 lock held by khungtaskd/27:
#0: ffffffff8c9a16c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6615
4 locks held by kworker/u4:3/46:
2 locks held by getty/4770:
#0: ffff88802dde9098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900020482f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xf08/0x13f0 drivers/tty/n_tty.c:2187
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.5.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
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:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xe16/0x1090 kernel/hung_task.c:379
kthread+0x344/0x440 kernel/kthread.c:389
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: 40 Comm: kworker/u4:2 Not tainted 6.5.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:__lock_release kernel/locking/lockdep.c:5466 [inline]
RIP: 0010:lock_release+0x2e8/0x670 kernel/locking/lockdep.c:5781
Code: 04 02 84 c0 74 08 3c 03 0f 8e e4 02 00 00 48 89 da 45 89 a7 c0 0a 00 00 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 <0f> 85 23 03 00 00 49 8d bf b8 0a 00 00 48 8b 1b 48 b8 00 00 00 00
RSP: 0018:ffffc90000d1fbc8 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffff8880142acc18 RCX: ffffc90000d1fc18
RDX: 1ffff11002855983 RSI: 0000000000000000 RDI: ffff8880142acc3a
RBP: 1ffff920001a3f7b R08: 0000000000000001 R09: fffffbfff1d536f2
R10: ffffffff8ea9b797 R11: 0000000000000001 R12: 0000000000000002
R13: ffff8880142acbc0 R14: 0000000000000003 R15: ffff8880142ac100
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c000c8b030 CR3: 000000000c775000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_lock_release include/linux/rcupdate.h:308 [inline]
rcu_read_unlock include/linux/rcupdate.h:782 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline]
batadv_nc_worker+0x86c/0xfe0 net/batman-adv/network-coding.c:719
process_one_work+0xa34/0x16f0 kernel/workqueue.c:2597
worker_thread+0x67d/0x10c0 kernel/workqueue.c:2748
kthread+0x344/0x440 kernel/kthread.c:389
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308