INFO: task syz.0.256:7679 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.256       state:D stack:17448 pid:7679  tgid:7678  ppid:7453   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+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: 0033:0x7efe38b8ebe9
RSP: 002b:00007efe39a19038 EFLAGS: 00000246 ORIG_RAX: 0000000000000146
RAX: ffffffffffffffda RBX: 00007efe38db5fa0 RCX: 00007efe38b8ebe9
RDX: 0000000000000009 RSI: 0000000000000000 RDI: 000000000000000a
RBP: 00007efe38c11e19 R08: 0000000000400000 R09: 0000000000000000
R10: 00002000000000c0 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efe38db6038 R14: 00007efe38db5fa0 R15: 00007ffcf2d93ed8
 </TASK>
INFO: task syz.0.256:7690 blocked for more than 144 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.256       state:D stack:23656 pid:7690  tgid:7678  ppid:7453   task_flags:0x400040 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 io_schedule+0x80/0xd0
 folio_wait_bit_common+0x6b0/0xb90
 invalidate_inode_pages2_range+0x557/0xa80
 bch2_write_invalidate_inode_pages_range+0xc5/0x110
 bch2_direct_write+0x2a62/0x2ce0
 bch2_write_iter+0x18f/0x2b90
 do_iter_readv_writev+0x61c/0x8b0
 vfs_writev+0x31a/0x960
 __se_sys_pwritev2+0x179/0x290
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efe38b8ebe9
RSP: 002b:00007efe399f8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007efe38db6090 RCX: 00007efe38b8ebe9
RDX: 0000000000000001 RSI: 0000200000000240 RDI: 0000000000000008
RBP: 00007efe38c11e19 R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000007000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007efe38db6128 R14: 00007efe38db6090 R15: 00007ffcf2d93ed8
 </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: 9193 Comm: kworker/u10:11 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_rootcg_workfn
RIP: 0010:page_copy_sane+0x1e/0x280
Code: 90 90 90 90 90 90 90 90 90 90 90 90 55 41 57 41 56 41 55 41 54 53 49 89 d6 49 89 f7 48 89 fb e8 f8 b2 f9 fc 4d 01 f7 4c 89 f7 <4c> 89 fe e8 4a b5 f9 fc 4d 39 fe 40 0f 97 c5 bf 01 10 00 00 4c 89
RSP: 0018:ffffc9000465f488 EFLAGS: 00000206
RAX: ffffffff84c5f838 RBX: ffffea0004a69a40 RCX: ffff8881078a9cc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000001000
RBP: ffffea0004a69a40 R08: ffffea0004a69a47 R09: 1ffffd400094d348
R10: dffffc0000000000 R11: fffff9400094d349 R12: ffffea0004a69a40
R13: ffff88810edf982c R14: 0000000000001000 R15: 0000000000001000
FS:  0000000000000000(0000) GS:ffff8881a3c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f61b260d000 CR3: 0000000022eb6000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 copy_page_to_iter+0x31/0x1c0
 shmem_file_read_iter+0x55e/0x930
 lo_rw_aio+0xcfa/0xfa0
 loop_process_work+0x835/0xf90
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
