INFO: task syz.5.202:7186 blocked for more than 143 seconds.
      Not tainted 6.17.0-rc1-syzkaller-00036-gdfc0f6373094-dirty #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.202       state:D stack:16456 pid:7186  tgid:7184  ppid:6349   task_flags:0x440140 flags:0x00004006
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 __bch2_two_state_lock+0x1ea/0x370
 bch2_readahead+0x94f/0x1100
 read_pages+0x17a/0x580
 page_cache_ra_order+0x918/0xd40
 filemap_get_pages+0x43c/0x1ea0
 filemap_splice_read+0x581/0xc60
 splice_direct_to_actor+0x4a9/0xcc0
 do_splice_direct+0x181/0x270
 do_sendfile+0x4da/0x7e0
 __se_sys_sendfile64+0x13e/0x190
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f887d38ebe9
RSP: 002b:00007f887e1dc038 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f887d5b5fa0 RCX: 00007f887d38ebe9
RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000009
RBP: 00007f887d411e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0001000200201005 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f887d5b6038 R14: 00007f887d5b5fa0 R15: 00007ffd4c3f49d8
 </TASK>
INFO: task syz.5.202:7210 blocked for more than 144 seconds.
      Not tainted 6.17.0-rc1-syzkaller-00036-gdfc0f6373094-dirty #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.202       state:D stack:27448 pid:7210  tgid:7184  ppid:6349   task_flags:0x400040 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 io_schedule+0x80/0xd0
 folio_wait_bit_common+0x6b0/0xb90
 truncate_inode_pages_range+0xa77/0xda0
 truncate_setsize+0xcf/0xf0
 bchfs_truncate+0x622/0xc20
 notify_change+0xb36/0xe40
 do_truncate+0x1a4/0x220
 do_ftruncate+0x489/0x540
 __x64_sys_ftruncate+0x92/0xf0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f887d38ebe9
RSP: 002b:00007f887e1bb038 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f887d5b6090 RCX: 00007f887d38ebe9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f887d411e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f887d5b6128 R14: 00007f887d5b6090 R15: 00007ffd4c3f49d8
 </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
2 locks held by getty/5676:
 #0: ffff8880286e70a0 (&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/u12:2/5934:
 #0: ffff88804b039f98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140
 #1: ffff88804b024008 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
1 lock held by syz.5.202/7186:
 #0: ffff88811367b078 (mapping.invalidate_lock#3){.+.+}-{4:4}, at: page_cache_ra_order+0x318/0xd40
2 locks held by syz.5.202/7210:
 #0: ffff888125e68428 (sb_writers#12){.+.+}-{0:0}, at: do_ftruncate+0x42a/0x540
 #1: ffff88811367aed8 (&sb->s_type->i_mutex_key#20){++++}-{4:4}, at: do_truncate+0x171/0x220
5 locks held by bch-reclaim/loo/7204:
2 locks held by kworker/u10:23/8358:
 #0: ffff888105bc9948 ((wq_completion)iou_exit){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90002c0fbc0 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
1 lock held by syz.2.388/8407:
 #0: ffff88802bd8d670 (mapping.invalidate_lock#3){.+.+}-{4:4}, at: page_cache_ra_order+0x318/0xd40
2 locks held by syz.2.388/8420:
 #0: ffff888030440428 (sb_writers#12){.+.+}-{0:0}, at: do_ftruncate+0x42a/0x540
 #1: ffff88802bd8d4d0 (&sb->s_type->i_mutex_key#20){++++}-{4:4}, at: do_truncate+0x171/0x220
1 lock held by bch-rebalance/l/8417:
2 locks held by syz.8.534/9354:
 #0: ffffffff8f537cc8 (rtnl_mutex){+.+.}-{4:4}, at: tun_chr_close+0x3e/0x1c0
 #1: ffffffff8e13f978 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2f6/0x730

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 34 Comm: khungtaskd Not tainted 6.17.0-rc1-syzkaller-00036-gdfc0f6373094-dirty #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: 7206 Comm: bch-rebalance/l Not tainted 6.17.0-rc1-syzkaller-00036-gdfc0f6373094-dirty #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:native_apic_msr_write+0x39/0x50
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 cc cc cc cc cc f3 0f 1e fa 89 f6 31 d2 e9 92 6c 8e 03 66
RSP: 0018:ffffc900001e0e50 EFLAGS: 00000046
RAX: 0000000000011c63 RBX: ffff888136623900 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 0000000000011c63 RDI: 0000000000000838
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff81ae02ae
R10: 0000000000000003 R11: ffffffff81703490 R12: 000000000fffc03f
R13: dffffc0000000000 R14: 0000000000011c63 R15: 0000000000000020
FS:  0000000000000000(0000) GS:ffff8881a3c1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e723ffc CR3: 0000000024808000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 lapic_next_event+0x11/0x20
 clockevents_program_event+0x1cf/0x360
 hrtimer_interrupt+0x620/0xaa0
 __sysvec_apic_timer_interrupt+0x10b/0x410
 sysvec_apic_timer_interrupt+0xa1/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:finish_task_switch+0x26b/0x950
Code: 0f 84 3c 01 00 00 48 85 db 0f 85 63 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 3f c8 ea 09 e8 3a 3f 36 00 fb 4c 8b 65 c0 <49> 8d bc 24 18 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc90003306458 EFLAGS: 00000282
RAX: e1b627621a0bb600 RBX: 0000000000000000 RCX: e1b627621a0bb600
RDX: 0000000000000007 RSI: ffffffff8d9b6df4 RDI: ffffffff8be33400
RBP: ffffc900033064b0 R08: ffffffff8fa37e37 R09: 1ffffffff1f46fc6
R10: dffffc0000000000 R11: fffffbfff1f46fc7 R12: ffff888110b05640
R13: dffffc0000000000 R14: ffff8881067d3980 R15: ffff88813663ab58
 __schedule+0x17a0/0x4cc0
 preempt_schedule_common+0x83/0xd0
 preempt_schedule+0xae/0xc0
 preempt_schedule_thunk+0x16/0x30
 _raw_spin_unlock_irq+0x45/0x50
 loop_queue_rq+0x9f8/0xb00
 blk_mq_request_issue_directly+0x3c1/0x710
 blk_mq_issue_direct+0x2a0/0x660
 blk_mq_dispatch_queue_requests+0x6fe/0x800
 blk_mq_flush_plug_list+0x432/0x550
 __blk_flush_plug+0x3d3/0x4b0
 __submit_bio+0x2d3/0x5a0
 submit_bio_noacct_nocheck+0x4ab/0xb50
 __bch2_read_extent+0x22fe/0x3a30
 bch2_move_extent+0x1291/0x1bb0
 do_rebalance_extent+0x8f0/0x1fe0
 bch2_rebalance_thread+0x126a/0x1f80
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
