INFO: task syz.0.448:7907 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.448       state:D stack:28264 pid:7907  tgid:7899  ppid:5850   task_flags:0x400140 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 io_schedule+0x80/0xd0
 lock_metapage+0x1f3/0x400
 __get_metapage+0x497/0xde0
 ea_write+0x5e6/0xdd0
 __jfs_setxattr+0x908/0x1120
 __jfs_xattr_set+0xda/0x170
 __vfs_setxattr+0x43c/0x480
 __vfs_setxattr_noperm+0x12d/0x660
 vfs_setxattr+0x16b/0x2f0
 filename_setxattr+0x274/0x600
 path_setxattrat+0x364/0x3a0
 __x64_sys_setxattr+0xbc/0xe0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f122258ebe9
RSP: 002b:00007f1223412038 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 00007f12227c6180 RCX: 00007f122258ebe9
RDX: 0000000000000000 RSI: 0000200000000140 RDI: 0000200000000040
RBP: 00007f1222611e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f12227c6218 R14: 00007f12227c6180 R15: 00007ffcc7d1f438
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e139f20 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5676:
 #0: ffff8880275d80a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000290e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
3 locks held by kworker/u11:3/5851:
 #0: ffff888037ec9948 ((wq_completion)hci2){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc900039d7bc0 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffff88803f684dc0 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1d4/0x3a0
2 locks held by kworker/u8:2/5859:
5 locks held by kworker/1:4/5898:
 #0: ffff888104bf1d48 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90003c77bc0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffff88802490e198 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4a20
 #3: ffffffff99b01388 (&____s->seqcount#2){----}-{0:0}, at: call_timer_fn+0xbe/0x5f0
 #4: ffffffff8e139f20 (rcu_read_lock){....}-{1:3}, at: __queue_work+0x102/0xfb0
6 locks held by kworker/1:5/5912:
 #0: ffff888104bf1d48 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90003ce7bc0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffff888108726198 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4a20
 #3: ffff888108739518 (&port_dev->status_lock){+.+.}-{4:4}, at: hub_event+0x21b8/0x4a20
 #4: ffff888107294168 (hcd->address0_mutex){+.+.}-{4:4}, at: hub_event+0x21e5/0x4a20
 #5: 
ffffffff8ede0950
 (ehci_cf_port_reset_rwsem){.+.+}-{4:4}, at: hrtimer_interrupt+0xfa/0xaa0
4 locks held by kworker/u9:29/6346:
 #0: ffff888100744948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: ffffc90002987bc0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}
, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffff88811189a0e0 (&type->s_umount_key#67){++++}-{4:4}, at: super_trylock_shared+0x20/0xf0
 #3: ffff8880385054c0 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: jfs_commit_inode+0x1ca/0x530
4 locks held by syz.0.448/7907:
 #0: ffff88811189a428 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90
 #1: ffff888038505870 (&type->i_mutex_dir_key#10){++++}-{4:4}, at: vfs_setxattr+0x144/0x2f0
 #2: ffff8880385054c0 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: __jfs_xattr_set+0xb9/0x170
 #3: ffff888038505558 (&jfs_ip->xattr_sem){++++}-{4:4}, at: __jfs_setxattr+0xe1/0x1120

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

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: 0 Comm: swapper/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
RIP: 0010:validate_chain+0x1e1/0x2140
Code: cc 48 ff cb f7 c1 00 60 00 00 74 c8 e9 8d 00 00 00 48 c7 c7 90 af 00 8e 4c 89 fe e8 d9 ba 61 03 48 8b 14 24 eb c9 48 8b 48 18 <4c> 39 f9 0f 84 b2 00 00 00 48 8b 40 08 48 85 c0 0f 84 c2 fe ff ff
RSP: 0018:ffffc900001e0a78 EFLAGS: 00000046
RAX: ffffffff93a86010 RBX: 0000000000044f12 RCX: ab1e9af921ff200a
RDX: 0000000000000000 RSI: ffff8881000f8b18 RDI: ffff8881000f8000
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff81ae5db0
R10: dffffc0000000000 R11: fffff5200003c19c R12: 0000000000000000
R13: ffff8881000f8af0 R14: ffff8881000f8b18 R15: ab1e9af921ff200a
FS:  0000000000000000(0000) GS:ffff8881a3c18000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7a7eae0931 CR3: 00000000376ba000 CR4: 00000000000006f0
Call Trace:
 <IRQ>
 __lock_acquire+0xab9/0xd20
 lock_acquire+0x120/0x360
 seqcount_lockdep_reader_access+0xc9/0x1c0
 ktime_get_update_offsets_now+0x60/0x3d0
 hrtimer_run_softirq+0x9e/0x2b0
 handle_softirqs+0x286/0x870
 __irq_exit_rcu+0xca/0x1f0
 irq_exit_rcu+0x9/0x30
 sysvec_apic_timer_interrupt+0xa6/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:pv_native_safe_halt+0x13/0x20
Code: 53 e7 02 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 73 67 0e 00 f3 0f 1e fa fb f4 <c3> cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90000177de0 EFLAGS: 00000282
RAX: f5fab26da4f8ad00 RBX: ffffffff819683c8 RCX: f5fab26da4f8ad00
RDX: 0000000000000001 RSI: ffffffff8d9b8241 RDI: ffffffff8be33880
RBP: ffffc90000177f20 R08: ffff888136632f9b R09: 1ffff11026cc65f3
R10: dffffc0000000000 R11: ffffed1026cc65f4 R12: ffffffff8fa39030
R13: 0000000000000001 R14: 0000000000000001 R15: 1ffff1102001f000
 default_idle+0x13/0x20
 default_idle_call+0x74/0xb0
 do_idle+0x1e8/0x510
 cpu_startup_entry+0x44/0x60
 start_secondary+0x101/0x110
 common_startup_64+0x13e/0x147
 </TASK>
