INFO: task syz.3.349:7526 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.349       state:D stack:23064 pid:7526  tgid:7525  ppid:6518   task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x153c/0x4fe0
 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: 0033:0x7f2c2e59acb9
RSP: 002b:00007f2c2c7f6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f2c2e815fa0 RCX: 00007f2c2e59acb9
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 00007f2c2e608bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2c2e816038 R14: 00007f2c2e815fa0 R15: 00007ffec4fe8af8
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_exp_gp_kthr/18:
1 lock held by khungtaskd/35:
 #0: ffffffff8e33f020 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
4 locks held by kworker/u10:9/1122:
 #0: ffff888160a85148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x855/0x15a0
 #1: ffffc90007f3fc40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x87c/0x15a0
 #2: ffff8881b381c0e0 (&type->s_umount_key#68){++++}-{4:4}, at: super_trylock_shared+0x20/0xf0
 #3: ffff8881bfa5dd58 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: jfs_commit_inode+0x1ca/0x530
2 locks held by getty/5640:
 #0: ffff88816f2a10a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc90002a502f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13c0
4 locks held by syz.3.349/7526:
 #0: ffff8881b381c420 (sb_writers#13){.+.+}-{0:0}, at: direct_splice_actor+0x49/0x160
 #1: ffff8881bfa5e108 (&sb->s_type->i_mutex_key#26){+.+.}-{4:4}, at: generic_file_write_iter+0x11e/0x680
 #2: ffff8881bfa5dcc8 (&jfs_ip->rdwrlock#2){++++}-{4:4}, at: jfs_get_block+0x153/0xad0
 #3: ffff8881bfa5dd58 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: extAlloc+0x130/0x1020
2 locks held by syz.5.1099/10705:
 #0: ffff8881b381c0e0 (&type->s_umount_key#68){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
 #1: ffff88816a32a820 (&bdi->wb_switch_rwsem){+.+.}-{4:4}, at: sync_inodes_sb+0x1c2/0xbd0
1 lock held by syz-executor/11200:
 #0: ffffffff8e344638 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x38d/0x770

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

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+0xe83/0xed0
 kthread+0x388/0x470
 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: 5263 Comm: udevd 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:do_raw_spin_trylock+0x66/0x190
Code: 24 08 07 bf b5 8d 48 c7 44 24 10 10 b2 9f 81 49 89 e4 49 c1 ec 03 48 b8 f1 f1 f1 f1 f8 f3 f3 f3 4b 89 04 3c 43 c6 44 3c 04 04 <be> 04 00 00 00 e8 e0 35 8a 00 48 89 d8 48 c1 e8 03 42 0f b6 04 38
RSP: 0018:ffffc90005f8fa60 EFLAGS: 00000a02
RAX: f3f3f3f8f1f1f1f1 RBX: ffff88823c640f80 RCX: ffffffff99ce1403
RDX: 0000000000000017 RSI: ffffffff8be09740 RDI: ffff88823c640f80
RBP: ffffc90005f8faf0 R08: dffffc0000000000 R09: 0000000000000000
R10: ffffed1022952000 R11: fffffbfff1f851af R12: 1ffff92000bf1f4c
R13: ffff88815fffc300 R14: ffff88823c640f80 R15: dffffc0000000000
FS:  00007fca488b9280(0000) GS:ffff8882a99f4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556fe9ca68 CR3: 0000000165b40000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 _raw_spin_trylock+0x21/0x80
 __free_frozen_pages+0x63c/0xce0
 __put_partials+0x146/0x170
 __slab_free+0x294/0x320
 qlist_free_all+0x97/0x100
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 kmem_cache_alloc_noprof+0x370/0x6e0
 getname_flags+0xb7/0x540
 do_sys_openat2+0xca/0x220
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fca485169a4
Code: 24 20 48 8d 44 24 30 48 89 44 24 28 64 8b 04 25 18 00 00 00 85 c0 75 2c 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 76 60 48 8b 15 55 a4 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007fff89f5e840 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fca485169a4
RDX: 00000000000a0800 RSI: 00005567fc353e90 RDI: 00000000ffffff9c
RBP: 00005567fc353e90 R08: 0000000000000008 R09: 4c5561eca191af74
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 00005567fc34aa90 R14: 00005567e9f39fee R15: 0000000000000000
 </TASK>
