INFO: task kworker/u8:0:12 blocked for more than 143 seconds.
      Not tainted 6.16.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:0    state:D stack:23464 pid:12    tgid:12    ppid:2      task_flags:0x4208060 flags:0x00004000
Workqueue: btree_node_rewrite async_btree_node_rewrite_work
Call Trace:
 <TASK>
 __schedule+0x16fd/0x4cf0
 schedule+0x165/0x360
 __closure_sync+0x163/0x220
 bch2_btree_update_start+0x18dc/0x1de0
 bch2_btree_node_rewrite+0x17e/0x1120
 bch2_btree_node_rewrite_key+0x273/0x320
 async_btree_node_rewrite_work+0x110/0x4f0
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
INFO: task syz.9.5961:23985 blocked for more than 143 seconds.
      Not tainted 6.16.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.9.5961      state:D stack:17912 pid:23985 tgid:23967 ppid:23159  task_flags:0x400140 flags:0x00004006
Call Trace:
 <TASK>
 __schedule+0x16fd/0x4cf0
 schedule+0x165/0x360
 __closure_sync+0x163/0x220
 bch2_btree_update_start+0x18dc/0x1de0
 bch2_btree_split_leaf+0x14b/0x8e0
 bch2_trans_commit_error+0x1b7/0x1130
 __bch2_trans_commit+0x1bb5/0x8870
 bch2_journal_replay+0x1e85/0x2630
 __bch2_run_recovery_passes+0x395/0x1010
 bch2_run_recovery_passes+0x184/0x210
 bch2_fs_recovery+0x2690/0x3a50
 bch2_fs_start+0xaaf/0xda0
 bch2_fs_get_tree+0xb39/0x1520
 vfs_get_tree+0x92/0x2b0
 do_new_mount+0x24a/0xa40
 __se_sys_mount+0x317/0x410
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc4cd59014a
RSP: 002b:00007fc4cb3d4e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fc4cb3d4ef0 RCX: 00007fc4cd59014a
RDX: 00002000000003c0 RSI: 0000200000000000 RDI: 00007fc4cb3d4eb0
RBP: 00002000000003c0 R08: 00007fc4cb3d4ef0 R09: 000000000180c844
R10: 000000000180c844 R11: 0000000000000246 R12: 0000200000000000
R13: 00007fc4cb3d4eb0 R14: 0000000000005960 R15: 00002000000005c0
 </TASK>
INFO: task bch-reclaim/loo:24007 blocked for more than 143 seconds.
      Not tainted 6.16.0-rc7-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:bch-reclaim/loo state:D stack:23944 pid:24007 tgid:24007 ppid:2      task_flags:0x200840 flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x16fd/0x4cf0
 schedule+0x165/0x360
 __closure_sync+0x163/0x220
 bch2_btree_update_start+0x18dc/0x1de0
 bch2_btree_split_leaf+0x14b/0x8e0
 bch2_trans_commit_error+0x1b7/0x1130
 __bch2_trans_commit+0x1bb5/0x8870
 bch2_btree_write_buffer_flush_locked+0x451f/0x4dd0
 btree_write_buffer_flush_seq+0x18c7/0x1a40
 bch2_btree_write_buffer_journal_flush+0x69/0xb0
 journal_flush_pins+0x8e3/0xe90
 __bch2_journal_reclaim+0x8e9/0xea0
 bch2_journal_reclaim_thread+0x177/0x4f0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>

Showing all locks held in the system:
4 locks held by kworker/u8:0/12:
 #0: ffff8880352f7948 ((wq_completion)btree_node_rewrite){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc900000f7bc0 ((work_completion)(&a->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffff888043d04398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: bch2_trans_srcu_lock+0xaf/0x220
 #3: ffff888043d26710 (&c->gc_lock){++++}-{4:4}, at: bch2_btree_update_start+0x542/0x1de0
1 lock held by khungtaskd/34:
 #0: ffffffff8e13f0e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5657:
 #0: ffff888022e090a0 (&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
2 locks held by kworker/u8:2/13196:
5 locks held by kworker/0:5/18184:
 #0: ffff88801b78d948 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90003d8fbc0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffff888023a83198 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4a20
 #3: ffff88802d6da198 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x400
 #4: 
ffff88801f849160
 (&dev->mutex){....}-{4:4}, at: raw_spin_rq_lock_nested+0x2a/0x140
2 locks held by syz.9.5961/23985:
 #0: ffff888043d04398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: bch2_trans_srcu_lock+0xaf/0x220
 #1: ffff888043d26710 (&c->gc_lock){++++}-{4:4}, at: bch2_btree_update_start+0x542/0x1de0
4 locks held by bch-reclaim/loo/24007:
 #0: ffff888043d4af68 (&j->reclaim_lock){+.+.}-{4:4}, at: bch2_journal_reclaim_thread+0x16b/0x4f0
 #1: ffff888043d04398 (&c->btree_trans_barrier){.+.+}-{0:0}, at: __bch2_trans_get+0x7f4/0xd80
 #2: ffff888043d04740 (&wb->flushing.lock){+.+.}-{4:4}, at: btree_write_buffer_flush_seq+0x18bd/0x1a40
 #3: ffff888043d26710 (&c->gc_lock){++++}-{4:4}, at: bch2_btree_update_start+0x542/0x1de0

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 34 Comm: khungtaskd Not tainted 6.16.0-rc7-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+0xfee/0x1030
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 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: 24432 Comm: kworker/u10:2 Not tainted 6.16.0-rc7-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:  0x0 (events_unbound)
RIP: 0010:worker_enter_idle+0x18d/0x510
Code: 95 00 4d 89 34 24 4d 8d 65 78 4d 89 e6 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df 41 80 3c 06 00 74 08 4c 89 e7 e8 13 fc 95 00 <4d> 8b 2c 24 4c 89 ff 4c 89 e6 4c 89 ea e8 51 4e 3a 03 84 c0 0f 84
RSP: 0018:ffffc90006b67c30 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: 1ffff11021053a00 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 000000000000008c R08: ffff888100003007 R09: 1ffff11020000600
R10: dffffc0000000000 R11: ffffed1020000601 R12: ffff8881000da078
R13: ffff8881000da000 R14: 1ffff1102001b40f R15: ffff88810829d000
FS:  0000000000000000(0000) GS:ffff8880b8623000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000010cb1a000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 worker_thread+0xa06/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
