INFO: task kcompactd0:31 blocked for more than 143 seconds.
      Not tainted 6.3.0-rc6-syzkaller-00034-ge62252bc55b6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kcompactd0      state:D stack:25176 pid:31    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5307 [inline]
 __schedule+0x173b/0x4630 kernel/sched/core.c:6625
 schedule+0xc3/0x180 kernel/sched/core.c:6701
 io_schedule+0x8c/0x100 kernel/sched/core.c:8887
 folio_wait_bit_common+0x86c/0x12b0 mm/filemap.c:1301
 migrate_folio_unmap mm/migrate.c:1165 [inline]
 migrate_pages_batch+0x8d6/0x36e0 mm/migrate.c:1680
 migrate_pages_sync mm/migrate.c:1892 [inline]
 migrate_pages+0x2798/0x3500 mm/migrate.c:1973
 compact_zone+0x2ac4/0x4040 mm/compaction.c:2420
 kcompactd_do_work mm/compaction.c:2872 [inline]
 kcompactd+0xc8c/0x1ba0 mm/compaction.c:2971
 kthread+0x270/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: ffffffff8cf25570 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:510
1 lock held by rcu_tasks_trace/13:
 #0: ffffffff8cf25d70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:510
1 lock held by khungtaskd/28:
 #0: ffffffff8cf253a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/4743:
 #0: ffff888027fae098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
 #1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2177
2 locks held by syz-executor.2/21694:
1 lock held by syz-executor.4/21721:
2 locks held by syz-executor.3/21785:
1 lock held by syz-executor.2/21841:
2 locks held by syz-executor.5/21843:
1 lock held by syz-executor.1/21886:
1 lock held by syz-executor.0/21924:
2 locks held by kworker/u4:0/21958:
1 lock held by syz-executor.1/22029:
1 lock held by syz-executor.3/22107:
1 lock held by syz-executor.1/22160:
1 lock held by syz-executor.1/22263:
1 lock held by syz-executor.0/22488:
1 lock held by syz-executor.5/22587:
1 lock held by syz-executor.0/22646:
1 lock held by syz-executor.4/22651:
1 lock held by syz-executor.1/22667:

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

NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.3.0-rc6-syzkaller-00034-ge62252bc55b6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x187/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
 watchdog+0xec2/0xf00 kernel/hung_task.c:379
 kthread+0x270/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 2877 Comm: kworker/u4:7 Not tainted 6.3.0-rc6-syzkaller-00034-ge62252bc55b6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
Workqueue: phy6 ieee80211_iface_work
RIP: 0010:debug_check_no_locks_freed+0x2d9/0x4a0 kernel/locking/lockdep.c:6462
Code: 00 c6 44 1a 0b 00 65 48 8b 04 25 28 00 00 00 48 3b 84 24 a0 00 00 00 0f 85 c7 01 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f <5d> c3 48 8b 44 24 20 4e 8d 3c e0 48 c7 c7 40 84 ea 8a 49 89 d6 e8
RSP: 0018:ffffc9000beb7890 EFLAGS: 00000246
RAX: 27f3d9c4429a4300 RBX: ffff8880abf6f000 RCX: fffffffe7036f000
RDX: dffffc0000000000 RSI: 0000000000000400 RDI: ffff8880abf6f000
RBP: ffffc9000beb7890 R08: ffffffff813db00c R09: fffffbfff205b646
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888012441dc0
R13: ffff8880abf6f000 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00a5b7770 CR3: 000000000cd30000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 slab_free_hook mm/slub.c:1753 [inline]
 slab_free_freelist_hook mm/slub.c:1807 [inline]
 slab_free mm/slub.c:3787 [inline]
 __kmem_cache_free+0x1f8/0x3c0 mm/slub.c:3800
 ieee80211_ibss_rx_queued_mgmt+0x1af7/0x2cf0
 ieee80211_iface_process_skb net/mac80211/iface.c:1583 [inline]
 ieee80211_iface_work+0x7bd/0xd00 net/mac80211/iface.c:1637
 process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2390
 worker_thread+0xa63/0x1210 kernel/workqueue.c:2537
 kthread+0x270/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>