INFO: task syz-executor.1:3643 blocked for more than 143 seconds.
Not tainted 5.19.0-syzkaller-13930-g7ebfc85e2cd7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:21208 pid: 3643 ppid: 1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0x957/0xe20 kernel/sched/core.c:6494
schedule+0xcb/0x190 kernel/sched/core.c:6570
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6629
__mutex_lock_common+0xecf/0x26c0 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799
fuse_lock_inode+0xc0/0x110 fs/fuse/inode.c:468
fuse_lookup+0x111/0x5f0 fs/fuse/dir.c:432
__lookup_slow+0x286/0x3e0 fs/namei.c:1685
lookup_slow+0x53/0x70 fs/namei.c:1702
walk_component fs/namei.c:1993 [inline]
link_path_walk+0x9ce/0xed0 fs/namei.c:2320
path_openat+0x237/0x2e00 fs/namei.c:3687
do_filp_open+0x275/0x500 fs/namei.c:3718
do_sys_openat2+0x13b/0x500 fs/open.c:1311
do_sys_open fs/open.c:1327 [inline]
__do_sys_openat fs/open.c:1343 [inline]
__se_sys_openat fs/open.c:1338 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1338
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f109ea88db8
RSP: 002b:00007ffdad06cdd0 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00000000000006ab RCX: 00007f109ea88db8
RDX: 0000000000090800 RSI: 00007f109eae2372 RDI: 00000000ffffff9c
RBP: 00007ffdad06ce9c R08: 0000000000090800 R09: 00007f109eae2372
R10: 0000000000000000 R11: 0000000000000287 R12: 0000000000000000
R13: 00000000000f7269 R14: 000000000000000c R15: 00007ffdad06cf00
INFO: task syz-executor.1:17027 blocked for more than 143 seconds.
Not tainted 5.19.0-syzkaller-13930-g7ebfc85e2cd7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:25952 pid:17027 ppid: 3643 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0x957/0xe20 kernel/sched/core.c:6494
schedule+0xcb/0x190 kernel/sched/core.c:6570
request_wait_answer fs/fuse/dev.c:407 [inline]
__fuse_request_send fs/fuse/dev.c:426 [inline]
fuse_simple_request+0x1064/0x18a0 fs/fuse/dev.c:511
fuse_lookup_name+0x349/0x830 fs/fuse/dir.c:392
fuse_lookup+0x17e/0x5f0 fs/fuse/dir.c:433
__lookup_slow+0x286/0x3e0 fs/namei.c:1685
lookup_slow+0x53/0x70 fs/namei.c:1702
walk_component fs/namei.c:1993 [inline]
link_path_walk+0x9ce/0xed0 fs/namei.c:2320
path_openat+0x237/0x2e00 fs/namei.c:3687
do_filp_open+0x275/0x500 fs/namei.c:3718
do_sys_openat2+0x13b/0x500 fs/open.c:1311
do_sys_open fs/open.c:1327 [inline]
__do_sys_openat fs/open.c:1343 [inline]
__se_sys_openat fs/open.c:1338 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1338
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f109ea89279
RSP: 002b:00007f109fbda168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f109eb9c050 RCX: 00007f109ea89279
RDX: 0000000000000042 RSI: 0000000020000040 RDI: ffffffffffffff9c
RBP: 00007f109eae3189 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdad06cbdf R14: 00007f109fbda300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cd20970 (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: ffffffff8cd21170 (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: ffffffff8cd207a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3284:
#0: ffff88814b0d8098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc90002d232f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6e8/0x1e50 drivers/tty/n_tty.c:2177
2 locks held by syz-executor.1/3643:
#0: ffff888089fda9d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:771 [inline]
#0: ffff888089fda9d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1701
#1: ffff888089fdae38 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0xc0/0x110 fs/fuse/inode.c:468
2 locks held by kworker/u4:10/3944:
#0: ffff8880b9b39c18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x25/0x110 kernel/sched/core.c:544
#1: ffff8880b9b27748 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x53a/0x8a0 kernel/sched/psi.c:880
2 locks held by syz-executor.1/17027:
#0: ffff888089fda9d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: inode_lock_shared include/linux/fs.h:771 [inline]
#0: ffff888089fda9d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1701
#1: ffff888089fdae38 (&fi->mutex){+.+.}-{3:3}, at: fuse_lock_inode+0xc0/0x110 fs/fuse/inode.c:468
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 5.19.0-syzkaller-13930-g7ebfc85e2cd7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x47c/0x4b0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x169/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xcd5/0xd20 kernel/hung_task.c:369
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3944 Comm: kworker/u4:10 Not tainted 5.19.0-syzkaller-13930-g7ebfc85e2cd7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
Workqueue: bat_events batadv_tt_purge
RIP: 0010:__lock_acquire+0x81f/0x1f60 kernel/locking/lockdep.c:5003
Code: 45 00 41 38 c5 41 0f b6 cd 41 89 c5 44 0f 42 e9 84 c0 44 0f 44 e9 49 ff c6 48 8b 44 24 38 0f b6 04 10 84 c0 0f 85 c2 00 00 00 <48> 8b 44 24 08 48 63 00 48 83 c3 28 49 83 c7 28 41 ff c4 49 39 c6
RSP: 0018:ffffc90004bbf8c8 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff88806f102840 RCX: 0000000000000004
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff8ff9c138
RBP: ffffffff8fcef3b8 R08: dffffc0000000000 R09: fffffbfff1ff3828
R10: fffffbfff1ff3828 R11: 1ffffffff1ff3827 R12: 0000000000000001
R13: 0000000000000004 R14: 0000000000000002 R15: ffff88806f102840
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055f5d1a99000 CR3: 00000000228e2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5666
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:354 [inline]
batadv_tt_local_purge+0x100/0x350 net/batman-adv/translation-table.c:1355
batadv_tt_purge+0x31/0xa90 net/batman-adv/translation-table.c:3561
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30