INFO: task bch-reclaim/loo:6029 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:bch-reclaim/loo state:D stack:24136 pid:6029  tgid:6029  ppid:2      task_flags:0x200040 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7e6/0x1350
 bch2_journal_reclaim_thread+0x16b/0x4f0
 kthread+0x711/0x8a0
 ret_from_fork+0x439/0x7d0
 ret_from_fork_asm+0x1a/0x30
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e13a0e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by kworker/u9:2/52:
 #0: ffff888100176948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc900007afbc0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
4 locks held by kworker/u10:7/1095:
 #0: ffff88803d32b948 ((wq_completion)btree_update#2){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90007007bc0 ((work_completion)(&c->btree_interior_update_work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffff88803fb84398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: bch2_trans_srcu_lock+0xaf/0x220
 #3: ffff88803fba6710 (&c->gc_lock){++++}-{4:4}, at: bch2_btree_update_start+0x542/0x1de0
2 locks held by getty/5677:
 #0: ffff88810dbac0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900029062f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
4 locks held by kworker/u8:2/5711:
6 locks held by syz-executor/5852:
 #0: ffff88802955e0e0 (&type->s_umount_key#91){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffff88803fb80278 (&c->state_lock){++++}-{4:4}, at: __bch2_fs_stop+0xf8/0x900
 #2: ffff88803fbcaf68 (&j->reclaim_lock){+.+.}-{4:4}, at: journal_flush_done+0x86/0x810
 #3: ffff88803fb84398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7f4/0xd80
 #4: ffff88803fb84740 (&wb->flushing.lock){+.+.}-{4:4}, at: btree_write_buffer_flush_seq+0x18bd/0x1a40
 #5: ffff88803fba6710 (&c->gc_lock){++++}-{4:4}, at: bch2_btree_update_start+0x542/0x1de0
1 lock held by bch-reclaim/loo/6029:
 #0: ffff88803fbcaf68 (&j->reclaim_lock){+.+.}-{4:4}, at: bch2_journal_reclaim_thread+0x16b/0x4f0
1 lock held by syz.0.34/6084:
 #0: ffff88802955e0e0 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.3.64/6297:
 #0: ffff88802955e0e0 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.5.65/6381:
 #0: ffff88802955e0e0 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.4.77/6462:
 #0: ffff88802955e0e0 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.6.80/6516:
 #0: ffff88802955e0e0 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.6.80/6521:
 #0: ffff88802955e0e0 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz-executor/6599:
 #0: ffff888109bf20e0 (&type->s_umount_key#91){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
1 lock held by syz.8.84/6611:
 #0: ffff88802955e0e0 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.2.98/6792:
 #0: ffff88802955e0e0 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.1.110/6888:
 #0: ffff88802955e0e0 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.3.118/6961:
 #0: ffff88802955e0e0 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.0.154/7038:
 #0: ffff88802955e0e0 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.4.260/7643:
 #0: ffff88802955e0e0 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.6.263/7676:
 #0: ffff88802955e0e0 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.5.268/7688:
 #0: ffff88802955e0e0 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.5.268/7689:
 #0: ffff88802955e0e0 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.8.279/7781:
 #0: ffff88802955e0e0 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.9.288/7807:
 #0: ffff888109bf20e0 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.2.307/7857:
 #0: ffff88802955e0e0 (&type->s_umount_key#91){++++}-{4:4}, at: super_lock+0x2a9/0x3b0

=============================================

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 34 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250
 nmi_cpu_backtrace+0x39e/0x3d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 watchdog+0xf93/0xfe0
 kthread+0x711/0x8a0
 ret_from_fork+0x439/0x7d0
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 32 Comm: kworker/u9:1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:__lock_acquire+0x467/0xd20
Code: c5 45 8d 7c 24 01 49 ff cc 44 89 f9 83 c1 fe 78 44 44 89 e3 81 e3 ff ff ff 7f 83 f9 31 73 1d 48 8d 0c 9b 8b 8c cf 10 0b 00 00 <31> c1 41 ff cf 49 ff cc f7 c1 00 60 00 00 74 cf eb 1c 48 c7 c7 90
RSP: 0018:ffffc9000065e7a8 EFLAGS: 00000087
RAX: 0000000000020007 RBX: 0000000000000002 RCX: 000000000004040a
RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffff88801d6d8000
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8172d195
R10: ffffc9000065ea08 R11: fffff520000cbd4d R12: 0000000000000002
R13: 0000000000000001 R14: ffff88801d6d8b90 R15: 0000000000000004
FS:  0000000000000000(0000) GS:ffff8880b8615000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3020fff8 CR3: 000000010face000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 lock_acquire+0x120/0x360
 unwind_next_frame+0xc2/0x2390
 __unwind_start+0x5b9/0x760
 arch_stack_walk+0xe4/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 kasan_save_free_info+0x46/0x50
 __kasan_slab_free+0x5b/0x80
 kfree+0x18e/0x440
 ieee80211_inform_bss+0xbd9/0x10a0
 cfg80211_inform_single_bss_data+0xd05/0x1ac0
 cfg80211_inform_bss_data+0x1fb/0x3b30
 cfg80211_inform_bss_frame_data+0x3d7/0x730
 ieee80211_bss_info_update+0x746/0x9e0
 ieee80211_ibss_rx_queued_mgmt+0xa36/0x2ae0
 ieee80211_iface_work+0x85f/0x12d0
 cfg80211_wiphy_work+0x2bb/0x470
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x439/0x7d0
 ret_from_fork_asm+0x1a/0x30
 </TASK>
