INFO: task syz.2.36:6195 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.36        state:D stack:23320 pid:6195  tgid:6194  ppid:5840   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: 0033:0x7f79fe39acb9
RSP: 002b:00007f79ff170028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f79fe615fa0 RCX: 00007f79fe39acb9
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 00007f79fe408bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020fffe82 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f79fe616038 R14: 00007f79fe615fa0 R15: 00007fffc9a31b58
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/35:
 #0: ffffffff8e341b60 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
4 locks held by kworker/u10:1/36:
 #0: ffff8881042c0148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x9d4/0x17a0
 #1: ffffc90000ac7bc0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa0f/0x17a0
 #2: ffff8881b90240e0 (&type->s_umount_key#98){++++}-{4:4}, at: super_trylock_shared+0x20/0xf0
 #3: ffff8881b7e738b8 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: jfs_commit_inode+0x1ca/0x530
2 locks held by getty/5663:
 #0: ffff888174a9c0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000356b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13c0
4 locks held by syz.2.36/6195:
 #0: ffff8881b9024420 (sb_writers#20){.+.+}-{0:0}, at: direct_splice_actor+0x49/0x160
 #1: ffff8881b7e73c68 (&sb->s_type->i_mutex_key#33){+.+.}-{4:4}, at: generic_file_write_iter+0x11e/0x680
 #2: ffff8881b7e73828 (&jfs_ip->rdwrlock#2){++++}-{4:4}, at: jfs_get_block+0x153/0xad0
 #3: ffff8881b7e738b8 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: extAlloc+0x130/0x1020
1 lock held by syz-executor/6583:
 #0: ffff8881b96f00e0 (&type->s_umount_key#98){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
1 lock held by syz-executor/7779:
 #0: ffff888116ed40e0 (&type->s_umount_key#98){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
1 lock held by syz-executor/9369:
 #0: ffffffff8e3476b8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x38d/0x770
2 locks held by syz.0.531/9821:
1 lock held by udevadm/9837:

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

NMI backtrace for cpu 1
CPU: 1 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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 9837 Comm: udevadm 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:native_apic_msr_write+0x39/0x50
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 e9 80 83 05 0a cc 89 f6 31 d2 e9 c6 84 5f 03 66 0f 1f 44 00
RSP: 0018:ffffc90000007e50 EFLAGS: 00000046
RAX: 0000000000018dca RBX: ffff888121023e40 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 0000000000018dca RDI: 0000000000000838
RBP: 0000000000000000 R08: ffffffff81b016a5 R09: ffffffff99d10508
R10: 0000000000000003 R11: ffffffff8171f6c0 R12: 0000000010007215
R13: dffffc0000000000 R14: 0000000000018dca R15: 0000000000000020
FS:  00007f44b41ccc80(0000) GS:ffff88818e408000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055cb5d274038 CR3: 0000000114254000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 lapic_next_event+0x11/0x20
 clockevents_program_event+0x1c9/0x350
 hrtimer_interrupt+0x620/0xaa0
 __sysvec_apic_timer_interrupt+0x102/0x3d0
 sysvec_apic_timer_interrupt+0xa1/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:lock_release+0x0/0x3a0
Code: be 00 00 50 00 e9 70 fe ff ff 41 be 2f 00 00 00 e9 0e ff ff ff 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 55 41 57 41 56 41 55 41 54 53 48 83 ec 30 49 89 f5 49
RSP: 0018:ffffc90005176fd0 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffffffff90632201 RCX: 0000000080000001
RDX: ffffc90005177001 RSI: ffffffff8174a335 RDI: ffffffff8e341b60
RBP: dffffc0000000000 R08: ffffc900051775b0 R09: 0000000000000000
R10: ffffc900051770f8 R11: fffff52000a2ee21 R12: ffffc900051775c0
R13: ffffc90005170000 R14: ffffc900051770a8 R15: ffffffff8174a335
 unwind_next_frame+0x1aaa/0x23c0
 arch_stack_walk+0x11b/0x150
 stack_trace_save+0xa9/0x100
 save_stack+0x122/0x230
 __reset_page_owner+0x71/0x1f0
 __free_frozen_pages+0xbb9/0xd10
 __put_partials+0x146/0x170
 __slab_free+0x294/0x320
 qlist_free_all+0x97/0x100
 kasan_quarantine_reduce+0x148/0x160
 __kasan_slab_alloc+0x22/0x80
 __kmalloc_noprof+0x3c2/0x7e0
 tomoyo_realpath_from_path+0xe3/0x5d0
 tomoyo_check_open_permission+0x229/0x470
 security_file_open+0xa9/0x240
 do_dentry_open+0x34e/0x1420
 vfs_open+0x3b/0x340
 path_openat+0x3486/0x3e20
 do_filp_open+0x22d/0x490
 do_sys_openat2+0x12f/0x220
 __x64_sys_openat+0x138/0x170
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f44b3d169a4
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:00007fff769510c0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f44b3d169a4
RDX: 0000000000080000 RSI: 00007fff769511f8 RDI: 00000000ffffff9c
RBP: 00007fff769511f8 R08: 0000000000000008 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000080000
R13: 000055cb4a8f535a R14: 0000000000000001 R15: 000055cb5d260da0
 </TASK>
