INFO: task syz.5.938:9566 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.5.938       state:D stack:23320 pid:9566  tgid:9565  ppid:6880   task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x14ef/0x4fb0
 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
 __blockdev_direct_IO+0x15d7/0x32f0
 jfs_direct_IO+0x119/0x220
 generic_file_direct_write+0x1db/0x3e0
 __generic_file_write_iter+0x11d/0x230
 generic_file_write_iter+0x14a/0x680
 iter_file_splice_write+0x99b/0x1100
 direct_splice_actor+0x101/0x160
 splice_direct_to_actor+0x53a/0xc70
 do_splice_direct+0x195/0x290
 do_sendfile+0x535/0x7c0
 __se_sys_sendfile64+0x144/0x1a0
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd102b9acb9
RSP: 002b:00007fd103ab0028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fd102e15fa0 RCX: 00007fd102b9acb9
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 00007fd102c08bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd102e16038 R14: 00007fd102e15fa0 R15: 00007ffd4b10cb78
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/35:
 #0: ffffffff8e35a2e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by kworker/u9:6/1096:
 #0: ffff888100089948 ((wq_completion)events_unbound#2){+.+.}-{0:0}, at: process_scheduled_works+0x9d4/0x17a0
 #1: ffffc90007f5fbc0 (connector_reaper_work){+.+.}-{0:0}, at: process_scheduled_works+0xa0f/0x17a0
4 locks held by kworker/u9:15/3614:
 #0: ffff8881036e8148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x9d4/0x17a0
 #1: ffffc90009e0fbc0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa0f/0x17a0
 #2: ffff88810b01a0e0 (&type->s_umount_key#60){++++}-{4:4}, at: super_trylock_shared+0x20/0xf0
 #3: ffff88811cc1efa8 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: jfs_commit_inode+0x1ca/0x530
2 locks held by getty/5661:
 #0: ffff88816bda50a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000356e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13c0
4 locks held by syz.5.938/9566:
 #0: ffff88810b01a420 (sb_writers#17){.+.+}-{0:0}, at: direct_splice_actor+0x49/0x160
 #1: ffff88811cc1f358 (&sb->s_type->i_mutex_key#28){+.+.}-{4:4}, at: generic_file_write_iter+0x11e/0x680
 #2: ffff88811cc1ef18 (&jfs_ip->rdwrlock#3){++++}-{4:4}, at: jfs_get_block+0x153/0xad0
 #3: ffff88811cc1efa8 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: extAlloc+0x130/0x1020
2 locks held by syz.7.2107/14202:
 #0: ffff88810b01a0e0 (&type->s_umount_key#60){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
 #1: ffff8881063a2820 (&bdi->wb_switch_rwsem){+.+.}-{4:4}, at: sync_inodes_sb+0x1c0/0xb80
2 locks held by syz.7.2107/14261:
 #0: ffff88810b01a0e0 (&type->s_umount_key#60){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
 #1: ffff8881063a2820 (&bdi->wb_switch_rwsem){+.+.}-{4:4}, at: sync_inodes_sb+0x1c0/0xb80
2 locks held by syz.8.2218/14963:

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 35 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+0xf90/0xfe0
 kthread+0x726/0x8b0
 ret_from_fork+0x51b/0xa40
 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: 14990 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:memset_orig+0x33/0xb0
Code: 01 01 01 01 01 01 01 01 48 0f af c1 41 89 f9 41 83 e1 07 75 74 48 89 d1 48 c1 e9 06 74 39 66 0f 1f 84 00 00 00 00 00 48 ff c9 <48> 89 07 48 89 47 08 48 89 47 10 48 89 47 18 48 89 47 20 48 89 47
RSP: 0018:ffffc90004927b80 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffff88816ec33300 RCX: 000000000000002c
RDX: 0000000000001000 RSI: 0000000000000000 RDI: ffff88816ec337c0
RBP: 0000000000000cc0 R08: 00000000a18909b5 R09: 0000000000000000
R10: ffff88816ec33300 R11: ffffffff81ae44e0 R12: 0000000000001000
R13: ffff88816ec33300 R14: ffff88816040b640 R15: ffff8881062dba00
FS:  00007f688aeb5380(0000) GS:ffff8882a992c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f688af3019c CR3: 00000001a6ccc000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 kmem_cache_alloc_noprof+0x394/0x6e0
 getname_flags+0xb7/0x540
 user_path_at+0x24/0x60
 user_statfs+0xa2/0x190
 __x64_sys_statfs+0x120/0x270
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f688b00968a
Code: c8 ff c3 b8 03 01 00 00 0f 05 48 3d 00 f0 ff ff 76 10 48 8b 15 8f a7 0d 00 f7 d8 64 89 02 48 83 c8 ff c3 b8 89 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 6f a7 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffd2b0978d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000089
RAX: ffffffffffffffda RBX: 00007f688af2e4f8 RCX: 00007f688b00968a
RDX: 00007f688af3019c RSI: 00007ffd2b097950 RDI: 00007f688af26723
RBP: 00007f688af26723 R08: 0000000000000000 R09: 000000000000000d
R10: 00007ffd2b097700 R11: 0000000000000246 R12: 00007ffd2b097950
R13: 00007ffd2b097ac8 R14: 00007ffd2b097ae0 R15: 0000000000000000
 </TASK>
