INFO: task syz.0.56:6172 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.56        state:D stack:24648 pid:6172  tgid:6172  ppid:5847   task_flags:0x400040 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 __bch2_two_state_lock+0x1ea/0x370
 bch2_page_mkwrite+0x5ad/0xf70
 do_page_mkwrite+0x14d/0x310
 do_wp_page+0x268d/0x5800
 __handle_mm_fault+0x1033/0x5440
 handle_mm_fault+0x40a/0x8e0
 do_user_addr_fault+0xa81/0x1390
 exc_page_fault+0x76/0xf0
 asm_exc_page_fault+0x26/0x30
RIP: 0033:0x7f2fca7588c6
RSP: 002b:00007ffc0d16d4e8 EFLAGS: 00010202
RAX: 0000200000000200 RBX: 0000000000000004 RCX: 0000000000736672
RDX: 0000000000000006 RSI: 0000000066727462 RDI: 0000200000000200
RBP: 00007f2fca9b7da0 R08: 0000001b30f20000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000009 R12: 00007f2fca9b609c
R13: 00007ffc0d16d5e0 R14: fffffffffffffffe R15: 00007ffc0d16d600
 </TASK>
INFO: task syz.0.56:6173 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.56        state:D stack:20296 pid:6173  tgid:6172  ppid:5847   task_flags:0x440140 flags:0x00004004
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
 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: 0033:0x7f2fca78ebe9
RSP: 002b:00007f2fcb6ca038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007f2fca9b5fa0 RCX: 00007f2fca78ebe9
RDX: 000000000000000a RSI: 0000000000000000 RDI: 000000000000000b
RBP: 00007f2fca811e19 R08: 0000000000400000 R09: 0000000000000000
R10: 00002000000000c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2fca9b6038 R14: 00007f2fca9b5fa0 R15: 00007ffc0d16d388
 </TASK>
INFO: task syz.0.56:6174 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.56        state:D stack:17448 pid:6174  tgid:6172  ppid:5847   task_flags:0x400140 flags:0x00004004
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: 0033:0x7f2fca78ebe9
RSP: 002b:00007f2fcb6a9038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007f2fca9b6090 RCX: 00007f2fca78ebe9
RDX: 000000000000000a RSI: 0000000000000000 RDI: 000000000000000b
RBP: 00007f2fca811e19 R08: 0000000000400000 R09: 0000000000000000
R10: 00002000000000c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2fca9b6128 R14: 00007f2fca9b6090 R15: 00007ffc0d16d388
 </TASK>
INFO: lockdep is turned off.
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: 6186 Comm: bch-rebalance/l 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:kasan_check_range+0xa5/0x2c0
Code: 34 19 4d 89 f4 4d 29 dc 49 83 fc 10 7f 29 4d 85 e4 0f 84 41 01 00 00 4c 89 cb 48 f7 d3 4c 01 fb 41 80 3b 00 0f 85 de 01 00 00 <49> ff c3 48 ff c3 75 ee e9 21 01 00 00 44 89 dd 83 e5 07 0f 84 b5
RSP: 0018:ffffc90003beedc0 EFLAGS: 00000246
RAX: ffff888033528301 RBX: fffffffffffffffd RCX: ffffffff84211102
RDX: 0000000000000001 RSI: 0000000000000014 RDI: ffffc90003beef28
RBP: ffffc90003bef050 R08: ffffc90003beef3b R09: 1ffff9200077dde7
R10: dffffc0000000000 R11: fffff5200077dde5 R12: 0000000000000003
R13: 00000000ffffffff R14: fffff5200077dde8 R15: 1ffff9200077dde5
FS:  0000000000000000(0000) GS:ffff8881a3c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005572fbb576e0 CR3: 0000000027336000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __asan_memcpy+0x40/0x70
 bch2_btree_node_iter_init+0x442/0x3a50
 bch2_btree_path_level_init+0x50b/0xa20
 bch2_btree_path_traverse_one+0xfec/0x21d0
 bch2_btree_iter_peek_max+0x9e8/0x58f0
 bch2_rebalance_thread+0xadd/0x1f80
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
