INFO: task syz-executor.0:5412 blocked for more than 143 seconds.
Not tainted 6.9.0-rc4-syzkaller-00214-g13a2e429f644 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:20296 pid:5412 tgid:5412 ppid:1 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x1a55/0x4bf0 kernel/sched/core.c:6746
__schedule_loop kernel/sched/core.c:6823 [inline]
schedule+0x147/0x320 kernel/sched/core.c:6838
bit_wait+0xe/0xd0 kernel/sched/wait_bit.c:199
__wait_on_bit+0xac/0x2e0 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0x1d1/0x250 kernel/sched/wait_bit.c:64
wait_on_bit include/linux/wait_bit.h:76 [inline]
gfs2_glock_wait+0xc3/0x2b0 fs/gfs2/glock.c:1354
gfs2_glock_nq_init fs/gfs2/glock.h:238 [inline]
__gfs2_lookup+0x117/0x270 fs/gfs2/inode.c:905
__lookup_slow+0x288/0x3f0 fs/namei.c:1692
lookup_slow+0x53/0x70 fs/namei.c:1709
walk_component+0x2e1/0x410 fs/namei.c:2004
lookup_last fs/namei.c:2461 [inline]
path_lookupat+0x16f/0x450 fs/namei.c:2485
filename_lookup+0x252/0x610 fs/namei.c:2514
user_path_at_empty+0x3e/0x60 fs/namei.c:2921
user_path_at include/linux/namei.h:57 [inline]
ksys_umount fs/namespace.c:1916 [inline]
__do_sys_umount fs/namespace.c:1924 [inline]
__se_sys_umount fs/namespace.c:1922 [inline]
__x64_sys_umount+0xf0/0x170 fs/namespace.c:1922
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x84/0x190 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f671867f1d7
RSP: 002b:00007ffd461a8918 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 00007f67186c93b9 RCX: 00007f671867f1d7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd461a89d0
RBP: 00007ffd461a89d0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd461a9ac0
R13: 00007f67186c93b9 R14: 0000555558e6b430 R15: 0000000000000002
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8dd32120 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
#0: ffffffff8dd32120 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
#0: ffffffff8dd32120 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6614
2 locks held by getty/4808:
#0: ffff88802e9c10a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b1/0x1e10 drivers/tty/n_tty.c:2201
1 lock held by syz-executor.0/5412:
#0: ffff8880674f51f0 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: inode_lock_shared include/linux/fs.h:805 [inline]
#0: ffff8880674f51f0 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x45/0x70 fs/namei.c:1708
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.9.0-rc4-syzkaller-00214-g13a2e429f644 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x23d/0x360 lib/dump_stack.c:114
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x194/0x2f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xfce/0x1010 kernel/hung_task.c:380
kthread+0x2ec/0x380 kernel/kthread.c:388
ret_from_fork+0x47/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 50 Comm: kworker/u8:3 Not tainted 6.9.0-rc4-syzkaller-00214-g13a2e429f644 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:hlock_class kernel/locking/lockdep.c:240 [inline]
RIP: 0010:__lock_acquire+0x126e/0x7fa0 kernel/locking/lockdep.c:5134
Code: 1f 81 e3 ff 1f 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 00 d5 76 92 be 08 00 00 00 e8 cc 6f 87 00 48 0f a3 1d 04 ab 04 11 73 1a <48> 69 c3 c8 00 00 00 48 8d 98 00 34 45 92 49 b8 00 00 00 00 00 fc
RSP: 0018:ffffc90000ba73c0 EFLAGS: 00000057
RAX: 0000000000000001 RBX: 0000000000000021 RCX: ffffffff817229f4
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff9276d500
RBP: ffffc90000ba7688 R08: ffffffff9276d507 R09: 1ffffffff24edaa0
R10: dffffc0000000000 R11: fffffbfff24edaa1 R12: 00000000a65f9bd5
R13: ffff8880149128d0 R14: 000000002b266176 R15: ffff888014912998
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055978fcc9600 CR3: 000000000db32000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1e9/0x540 kernel/locking/lockdep.c:5754
rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
rcu_read_lock include/linux/rcupdate.h:781 [inline]
sta_info_get+0x68/0x2a0 net/mac80211/sta_info.c:211
ieee80211_update_sta_info net/mac80211/ibss.c:985 [inline]
ieee80211_rx_bss_info net/mac80211/ibss.c:1097 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1578 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1199/0x2d50 net/mac80211/ibss.c:1605
ieee80211_iface_process_skb net/mac80211/iface.c:1605 [inline]
ieee80211_iface_work+0x89d/0xf00 net/mac80211/iface.c:1659
cfg80211_wiphy_work+0x21d/0x250 net/wireless/core.c:437
process_one_work kernel/workqueue.c:3254 [inline]
process_scheduled_works+0xa0c/0x17a0 kernel/workqueue.c:3335
worker_thread+0xa5c/0xff0 kernel/workqueue.c:3416
kthread+0x2ec/0x380 kernel/kthread.c:388
ret_from_fork+0x47/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244