INFO: task kworker/0:4:5165 blocked for more than 143 seconds.
Not tainted 6.7.0-rc8-syzkaller-00024-gac865f00af29 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:4 state:D
stack:26112 pid:5165 tgid:5165 ppid:2 flags:0x00004000
Workqueue: events_long flush_old_commits
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0xedb/0x5af0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0xe9/0x270 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x5b9/0x9d0 kernel/locking/mutex.c:747
reiserfs_write_lock+0x79/0x100 fs/reiserfs/lock.c:27
reiserfs_sync_fs+0x95/0x140 fs/reiserfs/super.c:76
flush_old_commits+0xf5/0x1f0 fs/reiserfs/super.c:111
process_one_work+0x886/0x15d0 kernel/workqueue.c:2627
process_scheduled_works kernel/workqueue.c:2700 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2781
kthread+0x2c6/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
Showing all locks held in the system:
4 locks held by kworker/0:1/9:
#0:
ffff888013071538
(
(wq_completion)events_long
){+.+.}-{0:0}
, at: process_one_work+0x789/0x15d0 kernel/workqueue.c:2602
#1:
ffffc900000e7d80
(
(work_completion)(&(&sbi->old_work)->work)
){+.+.}-{0:0}
, at: process_one_work+0x7eb/0x15d0 kernel/workqueue.c:2603
#2:
ffff88803e2c40e0
(
&type->s_umount_key
#25
){++++}-{3:3}
, at: flush_old_commits+0x79/0x1f0 fs/reiserfs/super.c:97
#3:
ffff88802077c090
(
&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x79/0x100 fs/reiserfs/lock.c:27
2 locks held by kworker/1:1/27:
#0:
ffff888013072938
(
(wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x789/0x15d0 kernel/workqueue.c:2602
#1: ffffc90000a2fd80 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15d0 kernel/workqueue.c:2603
1 lock held by khungtaskd/29:
#0:
ffffffff8cfab760 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
ffffffff8cfab760 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
ffffffff8cfab760 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
3 locks held by kworker/1:2/920:
#0: ffff888013070d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x789/0x15d0 kernel/workqueue.c:2602
#1: ffffc9000415fd80 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15d0 kernel/workqueue.c:2603
#2: ffffffff8eaad128 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0x51/0xc0 net/core/link_watch.c:277
2 locks held by getty/4822:
#0: ffff888029ca90a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900031232f0 (&ldata->atomic_read_lock
){+.+.}-{3:3}
, at: n_tty_read+0xfc6/0x1490 drivers/tty/n_tty.c:2201
4 locks held by kworker/0:4/5165:
#0:
ffff888013071538 ((wq_completion)events_long){+.+.}-{0:0}, at: process_one_work+0x789/0x15d0 kernel/workqueue.c:2602
#1:
ffffc900043b7d80 ((work_completion)(&(&sbi->old_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15d0 kernel/workqueue.c:2603
#2: ffff88808075e0e0 (&type->s_umount_key#25){++++}-{3:3}, at: flush_old_commits+0x79/0x1f0 fs/reiserfs/super.c:97
#3: ffff88803f569090 (&sbi->lock){+.+.}-{3:3}, at: reiserfs_write_lock+0x79/0x100 fs/reiserfs/lock.c:27
4 locks held by syz-executor.3/13844:
4 locks held by syz-executor.0/14825:
2 locks held by syz-executor.0/14885:
#0:
ffffffff8eaad128
(rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
(rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe00 net/core/rtnetlink.c:6555
#1:
ffffffff8cfb71b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
ffffffff8cfb71b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x6b1/0x800 kernel/rcu/tree_exp.h:996
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc8-syzkaller-00024-gac865f00af29 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x277/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x299/0x300 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+0xf87/0x1210 kernel/hung_task.c:379
kthread+0x2c6/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 139 Comm: kworker/u4:5 Not tainted 6.7.0-rc8-syzkaller-00024-gac865f00af29 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:trace_hardirqs_off+0x5/0x120 kernel/trace/trace_preemptirq.c:86
Code: 85 c0 75 01 c3 48 8b 3c 24 e8 a7 fe ff ff 65 c7 05 5c 22 75 7e 00 00 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 55 <53> 48 8b 7c 24 10 e8 10 e3 f1 08 65 8b 05 39 22 75 7e 85 c0 74 03
RSP: 0018:ffffc90002cbf3d8 EFLAGS: 00000006
RAX: ffff888085e6a000 RBX: ffff888085e6a000 RCX: ffff88823b7efc80
RDX: 0000000000000000 RSI: ffff888085e6a000 RDI: ffff888013041dc0
RBP: ffff888085e6a000 R08: 00000000d0bc2c38 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000004 R12: ffff888013041dc0
R13: 0000000000000200 R14: ffffc90002cbf488 R15: ffff888013041dc0
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f721fa9e866 CR3: 0000000093851000 CR4: 0000000000350ef0
Call Trace:
kasan_quarantine_put+0xaa/0x230 mm/kasan/quarantine.c:215
kasan_slab_free include/linux/kasan.h:164 [inline]
slab_free_hook mm/slub.c:1800 [inline]
slab_free_freelist_hook+0x114/0x1e0 mm/slub.c:1826
slab_free mm/slub.c:3809 [inline]
__kmem_cache_free+0xc0/0x180 mm/slub.c:3822
ieee80211_inform_bss+0xb2f/0x1150 net/mac80211/scan.c:160
rdev_inform_bss+0xea/0x430 net/wireless/rdev-ops.h:418
cfg80211_inform_single_bss_frame_data+0x7ae/0xf30 net/wireless/scan.c:2909
cfg80211_inform_bss_frame_data+0xbf/0x290 net/wireless/scan.c:2936
ieee80211_bss_info_update+0x300/0x8f0 net/mac80211/scan.c:205
ieee80211_rx_bss_info net/mac80211/ibss.c:1098 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1577 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1973/0x3120 net/mac80211/ibss.c:1604
ieee80211_iface_process_skb net/mac80211/iface.c:1589 [inline]
ieee80211_iface_work+0xa67/0xda0 net/mac80211/iface.c:1643
cfg80211_wiphy_work+0x24e/0x330 net/wireless/core.c:437
process_one_work+0x886/0x15d0 kernel/workqueue.c:2627
process_scheduled_works kernel/workqueue.c:2700 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2781
kthread+0x2c6/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242