INFO: task syz.9.2586:16424 blocked for more than 143 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.9.2586      state:D stack:22840 pid:16424 tgid:16423 ppid:13748  task_flags:0x440140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x1821/0x5740
 schedule+0x164/0x360
 xlog_grant_head_wait+0x442/0xa10
 xlog_grant_head_check+0x286/0x420
 xfs_log_reserve+0x2bc/0x780
 xfs_trans_alloc+0x29c/0x980
 xfs_trans_alloc_inode+0x13c/0x4a0
 xfs_attr_set+0x82e/0x1410
 xfs_xattr_set+0x188/0x2a0
 __vfs_setxattr+0x43c/0x480
 __vfs_setxattr_noperm+0x12d/0x660
 vfs_setxattr+0x163/0x360
 filename_setxattr+0x296/0x630
 path_setxattrat+0x3eb/0x440
 __x64_sys_lsetxattr+0xbf/0xe0
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4e7e99ce59
RSP: 002b:00007f4e7f809028 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd
RAX: ffffffffffffffda RBX: 00007f4e7ec15fa0 RCX: 00007f4e7e99ce59
RDX: 00002000000000c0 RSI: 0000200000000080 RDI: 0000200000000300
RBP: 00007f4e7ea32d6f R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000fd3f R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4e7ec16038 R14: 00007f4e7ec15fa0 R15: 00007ffd24ac40b8
 </TASK>

Showing all locks held in the system:
2 locks held by kworker/1:1/32:
 #0: ffff8881a2ba9940 ((wq_completion)xfs-sync/loop9){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860
 #1: ffffc90000a77c40 ((work_completion)(&(&log->l_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860
1 lock held by khungtaskd/35:
 #0: ffffffff8e95cce0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5442:
 #0: ffff8881788dd0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900034732e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13a0
6 locks held by kworker/1:7/8059:
 #0: ffff8881689a9d40 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860
 #1: ffffc90007147c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860
 #2: ffff88816b1451d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x17f/0x4f30
 #3: ffff88816afea568 (&port_dev->status_lock){+.+.}-{4:4}, at: hub_event+0x217a/0x4f30
 #4: ffff88816b1acb60 (hcd->address0_mutex){+.+.}-{4:4}, at: hub_event+0x21a2/0x4f30
 #5: ffffffff8f687d08 (ehci_cf_port_reset_rwsem){.+.+}-{4:4}, at: hub_port_reset+0x14e/0x1840
5 locks held by kworker/0:8/14088:
 #0: ffff8881689a9d40 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860
 #1: ffffc90004a3fc40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860
 #2: ffff88816afed1d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x17f/0x4f30
 #3: ffff8881139481d8 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450
 #4: ffff88810977a1a0 (&dev->mutex){....}-{4:4}, at: __device_attach+0x88/0x450
3 locks held by syz.9.2586/16424:
 #0: ffff8881adf00410 (sb_writers#22){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90
 #1: ffff8881b4030aa0 (&inode->i_sb->s_type->i_mutex_dir_key){++++}-{4:4}, at: vfs_setxattr+0x13e/0x360
 #2: ffff8881adf00600 (sb_internal#5){.+.+}-{0:0}, at: xfs_trans_alloc+0xd7/0x980
4 locks held by udevd/18144:
 #0: ffff88801f8f2ab8 (&p->lock){+.+.}-{4:4}, at: seq_read_iter+0xb7/0xe10
 #1: ffff88816d27fc80 (&of->mutex#2){+.+.}-{4:4}, at: kernfs_seq_start+0x5c/0x420
 #2: ffff88810e4d9e18 (kn->active#31){++++}-{0:0}, at: kernfs_seq_start+0xb2/0x420
 #3: ffff8881139481d8 (&dev->mutex){....}-{4:4}, at: manufacturer_show+0x26/0xa0

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 35 Comm: khungtaskd Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
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+0xfd3/0x1030
 kthread+0x389/0x470
 ret_from_fork+0x514/0xb70
 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: 13 Comm: kworker/u8:1 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue:  0x0 (bond1)
RIP: 0010:__dequeue_entity+0xc9/0x11b0
Code: 48 b8 00 00 00 00 00 fc ff df 48 89 4c 24 70 80 3c 01 00 74 0b 48 89 fb e8 94 22 98 00 48 89 df 49 8d 44 24 48 48 89 44 24 48 <48> 8b 1f 48 85 db 4c 89 6c 24 78 4c 89 64 24 68 74 79 48 85 ed 0f
RSP: 0018:ffffc90000127780 EFLAGS: 00000046
RAX: ffff8881bd687848 RBX: ffff8881bd687850 RCX: 1ffff1102f0043cc
RDX: 0000000000000001 RSI: ffff888178021e40 RDI: ffff888178021e60
RBP: 0000000000000000 R08: ffffffff90303ef7 R09: 1ffffffff20607de
R10: dffffc0000000000 R11: fffffbfff20607df R12: ffff8881bd687800
R13: ffff888178021e40 R14: 0000000000000000 R15: 1ffff11037ad0f0a
FS:  0000000000000000(0000) GS:ffff8882a9299000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffb81c22fe0 CR3: 0000000112218000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 set_next_entity+0x101/0x6b0
 pick_next_task_fair+0x1922/0x1ab0
 __pick_next_task+0xe6/0x480
 __schedule+0x962/0x5740
 schedule+0x164/0x360
 worker_thread+0xc21/0xfc0
 kthread+0x389/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
