INFO: task syz.5.277:7942 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.277       state:D stack:23680 pid:7942  tgid:7938  ppid:7472   task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x15dd/0x52d0
 schedule+0x164/0x360
 io_schedule+0x7f/0xd0
 lock_metapage+0x1ff/0x400
 __get_metapage+0x49a/0xde0
 xtSplitPage+0x281/0x2150
 xtSplitUp+0x33c/0x1fc0
 xtInsert+0x452/0xf20
 extAlloc+0xad9/0x1020
 jfs_get_block+0x358/0xad0
 __block_write_begin_int+0x6c6/0x1910
 block_write_begin+0x8d/0x120
 jfs_write_begin+0x35/0x80
 generic_perform_write+0x2e2/0x8f0
 __generic_file_write_iter+0x1ae/0x230
 generic_file_write_iter+0x14a/0x680
 iter_file_splice_write+0x9a1/0x10f0
 direct_splice_actor+0x101/0x160
 splice_direct_to_actor+0x53a/0xc70
 do_splice_direct+0x195/0x290
 do_sendfile+0x535/0x7d0
 __se_sys_sendfile64+0x144/0x1a0
 do_syscall_64+0x14d/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f963d39c799
RSP: 002b:00007f963e2ec028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f963d616090 RCX: 00007f963d39c799
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000005
RBP: 00007f963d432c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000800000020 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f963d616128 R14: 00007f963d616090 R15: 00007ffca9a06778
 </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+0xe8/0x150
 nmi_cpu_backtrace+0x274/0x2d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 sys_info+0x135/0x170
 watchdog+0xfd9/0x1030
 kthread+0x388/0x470
 ret_from_fork+0x51e/0xb90
 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: 36 Comm: kworker/u10:1 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: events_unbound toggle_allocation_gate
RIP: 0010:load_new_mm_cr3+0x13a/0x1d0
Code: 0f b7 c3 3d ff 07 00 00 73 4c f7 c3 00 08 00 00 75 50 ff c3 0f b7 c3 48 09 c1 48 b8 00 00 00 00 00 00 00 80 48 09 c8 0f 22 d8 <5b> 41 5c 41 5e 41 5f e9 ca 63 38 0a cc 90 0f 0b 90 eb b3 90 0f 0b
RSP: 0018:ffffc90000ac76e0 EFLAGS: 00000046
RAX: 000000000e54c000 RBX: 0000000000000000 RCX: ffff8881607b57c0
RDX: 0000000000000000 RSI: 000000000e54c000 RDI: 000000001fffffff
RBP: 0000000000000000 R08: ffffffff8e8865bf R09: 1ffffffff1d10cb7
R10: dffffc0000000000 R11: fffffbfff1d10cb8 R12: 0000000000000000
R13: dffffc0000000000 R14: ffffffff8e54c000 R15: 0000000000010000
FS:  0000000000000000(0000) GS:ffff8882a9463000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8c523e7158 CR3: 000000000e54c000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 switch_mm_irqs_off+0x45c/0x690
 unuse_temporary_mm+0xb4/0x150
 __text_poke+0x6ea/0x9a0
 smp_text_poke_batch_finish+0xd36/0x1160
 arch_jump_label_transform_apply+0x1c/0x30
 static_key_disable_cpuslocked+0xc5/0x1a0
 static_key_disable+0x1a/0x20
 toggle_allocation_gate+0x1fe/0x290
 process_scheduled_works+0xb02/0x1830
 worker_thread+0xa50/0xfc0
 kthread+0x388/0x470
 ret_from_fork+0x51e/0xb90
 ret_from_fork_asm+0x1a/0x30
 </TASK>
