INFO: task syz.3.90:6662 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.90        state:D stack:28616 pid:6662  tgid:6608  ppid:6314   task_flags:0x400040 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 rwsem_down_write_slowpath+0x872/0xfe0
 down_write_nested+0x1b5/0x200
 bch2_remap_file_range+0x2b0/0xd10
 vfs_copy_file_range+0xd56/0x1310
 __se_sys_copy_file_range+0x2fb/0x470
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f138378ebe9
RSP: 002b:00007f13845d6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007f13839b6180 RCX: 00007f138378ebe9
RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 00007f1383811e19 R08: fffffbffa003e458 R09: 0700000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f13839b6218 R14: 00007f13839b6180 R15: 00007ffe56005d58
 </TASK>

Showing all locks held in the system:
6 locks held by kworker/u8:0/12:
2 locks held by ksoftirqd/0/15:
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/u10:3/64:
 #0: ffff8881016d6948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc9000172fbc0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffff888033e560e0 (&type->s_umount_key#58){++++}-{4:4}, at: super_trylock_shared+0x20/0xf0
3 locks held by kworker/1:2/792:
 #0: ffff88801a480d48 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc900048dfbc0 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffff88812fea3240 (&data->fib_lock){+.+.}-{4:4}, at: nsim_fib_event_work+0x26b/0x3180
2 locks held by getty/5678:
 #0: ffff888106a0a0a0 (&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
3 locks held by kworker/u8:4/5885:
 #0: ffff88801bf2a148 ((wq_completion)cfg80211){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90003657bc0 ((work_completion)(&(&rdev->dfs_update_channels_wk)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffffffff8f538888 (rtnl_mutex){+.+.}-{4:4}, at: cfg80211_dfs_channels_update_work+0xb6/0x630
1 lock held by syz.3.90/6609:
 #0: ffff888033e56428 (sb_writers#13){.+.+}-{0:0}, at: vfs_write+0x211/0xb30
2 locks held by syz.3.90/6651:
 #0: ffff888033e56428 (sb_writers#13){.+.+}-{0:0}, at: do_ftruncate+0x42a/0x540
 #1: ffff888036562740 (&sb->s_type->i_mutex_key#21){++++}-{4:4}, at: do_truncate+0x171/0x220
3 locks held by syz.3.90/6662:
 #0: ffff888033e56428 (sb_writers#13){.+.+}-{0:0}, at: vfs_copy_file_range+0x916/0x1310
 #1: ffff888036561fa8 (&sb->s_type->i_mutex_key#21){++++}-{4:4}, at: lock_two_nondirectories+0xe7/0x180
 #2: ffff888036562740 (&sb->s_type->i_mutex_key#21/4){+.+.}-{4:4}, at: bch2_remap_file_range+0x2b0/0xd10
3 locks held by bch-rebalance/l/6625:
2 locks held by syz-executor/7301:
1 lock held by syz.4.421/9364:
 #0: ffff88803b5d80e0 (&type->s_umount_key#70){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
7 locks held by syz-executor/9372:
 #0: ffff888025b34428 (sb_writers#7){.+.+}-{0:0}, at: vfs_write+0x211/0xb30
 #1: ffff88803eb73c88 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1e0/0x4f0
 #2: ffff88801cfa54b8 (kn->active#48){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x203/0x4f0
 #3: ffffffff8edaf428 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xd1/0x360
 #4: ffff8881201980e8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xb6/0x800
 #5: ffff88812019a250 (&devlink->lock_key){+.+.}-{4:4}, at: nsim_drv_remove+0x50/0x160
 #6: ffffffff8e13f840 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x4c/0x570
2 locks held by syz-executor/9441:
 #0: ffffffff8fa3c3b8 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x23/0x250
 #1: ffffffff8f538888 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x8db/0x1c70
2 locks held by rm/9464:

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

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+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: 9441 Comm: syz-executor 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
RIP: 0010:debug_smp_processor_id+0x0/0x20
Code: c7 40 36 1f 8e 4c 89 f6 e8 6d 9a 85 f9 e9 66 ff ff ff cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 c7 c7 20 36 e3 8b 48 c7 c6 60 36 e3 8b eb 1c 66 66
RSP: 0018:ffffc90006e27228 EFLAGS: 00000a06
RAX: 1ffffffff1f4714b RBX: 00000000ffffffff RCX: ffff88801fad3980
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 00000000ffffffff R08: 0000000000000000 R09: ffffffff822aa4f9
R10: dffffc0000000000 R11: fffff940008960f7 R12: 00000000ffffffff
R13: ffffffff92a25fc0 R14: ffff88801b6f06b0 R15: dffffc0000000000
FS:  000055557b825500(0000) GS:ffff8880b861b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c336ea9131 CR3: 000000000df36000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 memcg_rstat_updated+0x83/0x220
 mod_memcg_lruvec_state+0x165/0x370
 __lruvec_stat_mod_folio+0x1a0/0x2f0
 folio_remove_rmap_ptes+0x14b/0xaf0
 unmap_page_range+0x1f7f/0x4370
 unmap_vmas+0x399/0x580
 exit_mmap+0x248/0xb50
 __mmput+0x118/0x420
 exit_mm+0x1da/0x2c0
 do_exit+0x648/0x2300
 do_group_exit+0x21c/0x2d0
 get_signal+0x1286/0x1340
 arch_do_signal_or_restart+0x9a/0x750
 exit_to_user_mode_loop+0x75/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5afcf90a7c
Code: Unable to access opcode bytes at 0x7f5afcf90a52.
RSP: 002b:00007ffec8d45de0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: 000000000000003c RBX: 00007f5afdce4620 RCX: 00007f5afcf90a7c
RDX: 000000000000003c RSI: 00007f5afdce4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffec8d45e34 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f5afdce4670 R15: 0000000000000000
 </TASK>
