INFO: task bch-reclaim/loo:9886 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:18792 pid:9886  tgid:9886  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+0x47f/0x820
 ret_from_fork_asm+0x1a/0x30
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e33cda0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
5 locks held by kworker/u9:2/84:
4 locks held by kworker/1:2H/5313:
 #0: ffff88804634a948 ((wq_completion)bcachefs_btree_write_complete#3){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc900017dfba0 ((work_completion)(&wb->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffff888038484398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: bch2_trans_srcu_lock+0xaf/0x220
 #3: ffff8880384a6710 (&c->gc_lock){++++}-{4:4}, at: bch2_btree_update_start+0x542/0x1de0
2 locks held by getty/5673:
 #0: ffff888108fe80a0 (&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
6 locks held by kworker/0:4/5895:
 #0: ffff88801b7b7548 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90003befba0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffff888022a96198 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4a20
 #3: ffff8880345b4198 (&dev->mutex){....}-{4:4}, at: usb_disconnect+0xf8/0x950
 #4: ffff888105c97160 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xb6/0x800
 #5: ffffffff8e342700 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x4c/0x570
5 locks held by kworker/u8:4/5908:
 #0: ffff88801b6ff148 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90003c3fba0 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffffffff8f732950 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xf7/0x800
 #3: ffffffff8f73f808 (rtnl_mutex){+.+.}-{4:4}, at: ops_undo_list+0x2a4/0x990
 #4: ffffffff8e342838 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2f6/0x730
3 locks held by kworker/1:5/5909:
 #0: ffff88801a875548 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90003c0fba0 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffff888123ab9240 (&data->fib_lock){+.+.}-{4:4}, at: nsim_fib_event_work+0x26b/0x3180
6 locks held by syz-executor/9177:
 #0: ffff888049b6e0e0 (&type->s_umount_key#53){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffff888038480278 (&c->state_lock){++++}-{4:4}, at: __bch2_fs_stop+0xf8/0x900
 #2: ffff8880384caf68 (&j->reclaim_lock){+.+.}-{4:4}, at: journal_flush_done+0x86/0x810
 #3: ffff888038484398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7f4/0xd80
 #4: ffff888038484740 (&wb->flushing.lock){+.+.}-{4:4}, at: btree_write_buffer_flush_seq+0x18bd/0x1a40
 #5: ffff8880384a6710 (&c->gc_lock){++++}-{4:4}, at: bch2_btree_update_start+0x542/0x1de0
1 lock held by bch-reclaim/loo/9886:
 #0: ffff8880384caf68 (&j->reclaim_lock){+.+.}-{4:4}, at: bch2_journal_reclaim_thread+0x16b/0x4f0
1 lock held by syz.6.1001/10852:
 #0: ffff888049b6e0e0 (&type->s_umount_key#53){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
3 locks held by kworker/u9:3/11125:
3 locks held by kworker/u9:7/11197:
2 locks held by kworker/u8:5/11835:
 #0: ffff888136639f98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140
 #1: ffff888136624008 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
7 locks held by syz-executor/12316:
 #0: ffff88801ef6c428 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x211/0xb30
 #1: ffff88804370e088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1e0/0x4f0
 #2: ffff888021dd4a58 (kn->active#48){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x203/0x4f0
 #3: ffffffff8efb4ae8 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x360
 #4: ffff888032f680e8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xb6/0x800
 #5: ffff888032f6f250 (&devlink->lock_key#4){+.+.}-{4:4}, at: nsim_drv_remove+0x50/0x160
 #6: ffffffff8e342700 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x4c/0x570
3 locks held by syz.0.1320/12362:

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

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+0xf60/0xfa0
 kthread+0x711/0x8a0
 ret_from_fork+0x47f/0x820
 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: 11197 Comm: kworker/u9:7 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_release+0x3c/0x3e0
Code: 49 89 f5 49 89 fe 65 48 8b 05 80 e0 23 11 48 89 44 24 28 0f 1f 44 00 00 65 8b 05 83 e0 23 11 83 f8 08 0f 83 9a 02 00 00 89 c0 <48> 0f a3 05 6c 6b 25 0e 73 16 e8 05 e8 08 00 84 c0 75 0d f6 05 3a
RSP: 0018:ffffc90000006630 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffffffff90dfda01 RCX: e3dcbb5db0196100
RDX: ffffc90000006701 RSI: ffffffff8173bd85 RDI: ffffffff8e33cda0
RBP: dffffc0000000000 R08: ffffc90000007850 R09: 0000000000000000
R10: ffffc900000067b8 R11: fffff52000000cf9 R12: ffffc90000007860
R13: ffffffff8173bd85 R14: ffffffff8e33cda0 R15: ffffffff8173bd85
FS:  0000000000000000(0000) GS:ffff8880b83fa000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e317ff8 CR3: 000000000e138000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 unwind_next_frame+0x19a9/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_kmalloc+0x93/0xb0
 __kmalloc_cache_noprof+0x3d5/0x6f0
 ref_tracker_alloc+0x133/0x460
 dst_init+0xd9/0x450
 dst_alloc+0x12a/0x170
 ip_route_output_key_hash_rcu+0x1560/0x23e0
 ip_route_output_key_hash+0x174/0x280
 ip_route_output_flow+0x2a/0x150
 ip_route_me_harder+0x6c4/0xf10
 synproxy_send_tcp+0x3a7/0x700
 synproxy_send_client_synack+0x8bb/0xe20
 nft_synproxy_eval_v4+0x36e/0x560
 nft_synproxy_do_eval+0x345/0x570
 nft_do_chain+0x40c/0x1920
 nft_do_chain_inet+0x25d/0x340
 nf_hook_slow+0xc5/0x220
 NF_HOOK+0x206/0x3a0
 NF_HOOK+0x30c/0x3a0
 __netif_receive_skb+0x143/0x380
 process_backlog+0x60e/0x14f0
 __napi_poll+0xc7/0x360
 net_rx_action+0x707/0xe30
 handle_softirqs+0x286/0x870
 do_softirq+0xec/0x180
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x17d/0x1c0
 ieee80211_ibss_rx_queued_mgmt+0x11e5/0x2ae0
 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+0x47f/0x820
 ret_from_fork_asm+0x1a/0x30
 </TASK>
