INFO: task syz.0.22:6090 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.22        state:D stack:18184 pid:6090  tgid:6054  ppid:5846   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+0x8ca/0xd40
 filemap_get_pages+0xb22/0x1ea0
 filemap_splice_read+0x581/0xc60
 splice_direct_to_actor+0x4a9/0xcc0
 do_splice_direct+0x181/0x270
 vfs_copy_file_range+0xabc/0x1310
 __se_sys_copy_file_range+0x2fb/0x470
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f905b18ec29
RSP: 002b:00007f905c000038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007f905b3d6090 RCX: 00007f905b18ec29
RDX: 0000000000000007 RSI: 0000000000000000 RDI: 0000000000000008
RBP: 00007f905b211e41 R08: fffffbffa003e458 R09: 0700000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f905b3d6128 R14: 00007f905b3d6090 R15: 00007ffdfbb3c828
 </TASK>
INFO: task syz.0.22:6133 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.22        state:D stack:23880 pid:6133  tgid:6054  ppid:5846   task_flags:0x400140 flags:0x00004006
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 io_schedule+0x80/0xd0
 folio_wait_bit_common+0x6b0/0xb90
 bch2_mark_pagecache_unallocated+0x3a2/0x920
 bch2_remap_file_range+0x92c/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: 0033:0x7f905b18ec29
RSP: 002b:00007f905bfdf038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007f905b3d6180 RCX: 00007f905b18ec29
RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000006
RBP: 00007f905b211e41 R08: 0000000000400000 R09: 0000000000000000
R10: 00002000000000c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f905b3d6218 R14: 00007f905b3d6180 R15: 00007ffdfbb3c828
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e13a0e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5674:
 #0: ffff88801b6f90a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900029032f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
1 lock held by syz.0.22/6090:
 #0: ffff888030110a80 (mapping.invalidate_lock#4){.+.+}-{4:4}, at: page_cache_ra_order+0x318/0xd40
2 locks held by syz.0.22/6133:
 #0: ffff88802ef1e428 (sb_writers#17){.+.+}-{0:0}, at: vfs_copy_file_range+0x916/0x1310
 #1: ffff8880301108e0 (&sb->s_type->i_mutex_key#26){++++}-{4:4}, at: lock_two_nondirectories+0xe7/0x180
2 locks held by bch-rebalance/l/6074:
3 locks held by kworker/0:8/7201:
 #0: ffff88801a480d48 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc900025cfbc0 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffff888035dd8240 (&data->fib_lock){+.+.}-{4:4}, at: nsim_fib_event_work+0x26b/0x3180
1 lock held by syz-executor/7529:
 #0: ffffffff8e13fb78 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x3b9/0x730
1 lock held by syz-executor/8405:
 #0: ffffffff8e13fb78 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x3b9/0x730
2 locks held by syz.0.319/8570:
1 lock held by dhcpcd-run-hook/8575:

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

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+0x439/0x7d0
 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: 8580 Comm: dhcpcd-run-hook 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_lockdep_rcu_enabled+0x2d/0x40
Code: fa 31 c0 83 3d 57 49 29 04 00 74 1e 83 3d 6a 79 29 04 00 74 15 65 48 8b 0c 25 08 e0 a0 92 31 c0 83 b9 ec 0a 00 00 00 0f 94 c0 <e9> 0e dd 02 00 cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90
RSP: 0018:ffffc90002b1f7f0 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffffffff8222f91c RCX: ffff8880209a0000
RDX: 0000000000000001 RSI: ffffffff8dba996e RDI: ffffffff8be33f80
RBP: dffffc0000000000 R08: 0000000000000000 R09: ffffffff8172c195
R10: ffffc90002b1f918 R11: ffffffff81ac3b00 R12: 1ffff92000563f19
R13: ffffc90002b1f900 R14: ffffc90002b1f8c8 R15: ffffffff8172c195
FS:  00007f6e5b742380(0000) GS:ffff8880b8612000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6e5b9f4690 CR3: 0000000107308000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 unwind_next_frame+0xcb/0x2390
 arch_stack_walk+0x11c/0x150
 stack_trace_save+0x9c/0xe0
 kasan_save_track+0x3e/0x80
 __kasan_slab_alloc+0x6c/0x80
 kmem_cache_alloc_noprof+0x1c1/0x3c0
 getname_flags+0xb8/0x540
 vfs_fstatat+0x43/0x170
 __x64_sys_newfstatat+0x116/0x190
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6e5b8965f4
Code: 64 c7 00 09 00 00 00 83 c8 ff c3 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 00 00 00 00 41 89 ca b8 06 01 00 00 0f 05 <45> 31 c0 3d 00 f0 ff ff 76 10 48 8b 15 03 a8 0d 00 f7 d8 41 83 c8
RSP: 002b:00007ffd4034c388 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f6e5b8965f4
RDX: 00007ffd4034c398 RSI: 0000557901c00e80 RDI: 00000000ffffff9c
RBP: 0000557901bfa040 R08: 0000000000000028 R09: 0000000000000400
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f6e5ba1a2ba
R13: 0000000000000000 R14: 00007ffd4034c688 R15: 0000000000000000
 </TASK>
