INFO: task syz.6.151:7020 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.6.151       state:D stack:22712 pid:7020  tgid:7018  ppid:6549   task_flags:0x400140 flags:0x00004006
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 __closure_sync+0x163/0x220
 bch2_set_nr_journal_buckets_loop+0x1338/0x1710
 bch2_set_nr_journal_buckets+0x36/0xc0
 bch2_ioctl_disk_resize_journal+0x2b9/0x340
 bch2_fs_ioctl+0xbc2/0x1920
 bch2_fs_file_ioctl+0x561/0x1dc0
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0c5258ebe9
RSP: 002b:00007f0c533f9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f0c527c5fa0 RCX: 00007f0c5258ebe9
RDX: 00002000000000c0 RSI: 000000004018bc0f RDI: 0000000000000007
RBP: 00007f0c52611e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0c527c6038 R14: 00007f0c527c5fa0 R15: 00007ffd18bccce8
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e139ee0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
3 locks held by kworker/u10:2/40:
2 locks held by getty/5670:
 #0: ffff88810ede20a0 (&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
1 lock held by kworker/u8:5/6587:
 #0: ffff888136639f98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140
1 lock held by syz.6.151/7020:
 #0: ffff88803fe80278 (&c->state_lock){++++}-{4:4}, at: bch2_set_nr_journal_buckets+0x27/0xc0
3 locks held by syz-executor/11339:
 #0: ffff8881049ce0e0 (&type->s_umount_key#66){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffff8880299718c8 (&sbi->umount_mutex){+.+.}-{4:4}, at: f2fs_put_super+0xcb/0x1170
 #2: ffff8881125da0f0 (&dcc->cmd_lock){+.+.}-{4:4}, at: __issue_discard_cmd+0x411/0x1370
3 locks held by syz.2.753/11573:
1 lock held by rm/11593:

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

NMI backtrace for cpu 0
CPU: 0 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+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 40 Comm: kworker/u10:2 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: loop0 loop_workfn
RIP: 0010:xas_clear_mark+0xe3/0x530
Code: 08 48 c1 e8 03 48 89 44 24 10 83 fb 03 76 16 e8 e3 d8 47 f6 48 c7 c7 b0 a5 8a 8f 4c 89 fe e8 b4 87 87 f9 eb 05 e8 cd d8 47 f6 <44> 0f b6 e5 4b 8d 04 fe 44 89 e1 c0 e9 03 0f b6 c9 83 e1 18 48 8d
RSP: 0018:ffffc900006eef88 EFLAGS: 00000093
RAX: ffffffff8b77d2c3 RBX: 0000000000000001 RCX: ffff8881006a9cc0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000004
RBP: 0000000000000018 R08: ffff88811491a5ef R09: 1ffff110229234bd
R10: dffffc0000000000 R11: ffffed10229234be R12: 0000000000000001
R13: dffffc0000000000 R14: ffff88811491a3c0 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8881a3c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005579da0ea950 CR3: 000000003d142000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 xas_init_marks+0x8a/0xc0
 __filemap_remove_folio+0x3cf/0x500
 filemap_remove_folio+0xe6/0x1f0
 truncate_inode_folio+0x5d/0x70
 shmem_undo_range+0x3a9/0x14b0
 shmem_fallocate+0x41f/0xde0
 loop_process_work+0x7e4/0xf90
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
