INFO: task kworker/u10:10:1110 blocked in I/O wait for more than 143 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u10:10  state:D stack:22664 pid:1110  tgid:1110  ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: writeback wb_workfn (flush-7:9)
Call Trace:
 <TASK>
 __schedule+0x17db/0x58f0
 schedule+0x164/0x2b0
 io_schedule+0x7f/0xd0
 lock_metapage+0x1fe/0x400
 __get_metapage+0x47a/0xdf0
 xtSplitPage+0x276/0x2130
 xtSplitUp+0x33a/0x1ef0
 xtInsert+0x43e/0xf10
 extAlloc+0xac6/0x1010
 jfs_get_block+0x351/0xad0
 __mpage_writepages+0x86c/0x1d00
 do_writepages+0x338/0x560
 __writeback_single_inode+0x136/0x1220
 writeback_sb_inodes+0x9de/0x1b00
 wb_writeback+0x41c/0xad0
 wb_workfn+0x431/0x10f0
 process_scheduled_works+0xc3d/0x1630
 worker_thread+0xa47/0xfb0
 kthread+0x38b/0x480
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
INFO: task syz-executor:13020 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-executor    state:D stack:22328 pid:13020 tgid:13020 ppid:1      task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17db/0x58f0
 schedule+0x164/0x2b0
 wb_wait_for_completion+0x3b2/0x700
 sync_inodes_sb+0x227/0xbf0
 sync_filesystem+0x17d/0x240
 generic_shutdown_super+0x77/0x2d0
 kill_block_super+0x44/0xa0
 deactivate_locked_super+0xbc/0x110
 cleanup_mnt+0x3d3/0x460
 task_work_run+0x1d9/0x270
 exit_to_user_mode_loop+0x204/0x770
 do_syscall_64+0x328/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe78f79f397
RSP: 002b:00007fffefb917d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fe78f8344bb RCX: 00007fe78f79f397
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffefb91890
RBP: 00007fffefb91890 R08: 0000000000008000 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffefb92920
R13: 00007fe78f8344bb R14: 0000000000050fb2 R15: 00007fffefb92960
 </TASK>
INFO: task syz.8.2866:13883 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.8.2866      state:D stack:27200 pid:13883 tgid:13882 ppid:12900  task_flags:0x400040 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17db/0x58f0
 schedule+0x164/0x2b0
 schedule_preempt_disabled+0x13/0x30
 rwsem_down_read_slowpath+0x6ba/0x920
 down_read+0x9c/0x330
 super_lock+0x2d6/0x3d0
 __iterate_supers+0x26b/0x420
 __se_sys_quotactl+0x3a0/0x9f0
 do_syscall_64+0x166/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1f2039e159
RSP: 002b:00007f1f212b0028 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007f1f20625fa0 RCX: 00007f1f2039e159
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff80000102
RBP: 00007f1f2043506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1f20626038 R14: 00007f1f20625fa0 R15: 00007ffec516f4e8
 </TASK>

Showing all locks held in the system:
locks held by kworker/0:0/9: 6, on CPU#0:
 #0: ffff8881637bd540 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc900000e7c40 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffff88816e9de1d8 (&dev->mutex){....}-{4:4}, at: hub_event+0x184/0x4d30
 #3: ffff88816ea1b568 (&port_dev->status_lock){+.+.}-{4:4}, at: hub_event+0x20a1/0x4d30
 #4: ffff88816e975a60 (hcd->address0_mutex){+.+.}-{4:4}, at: hub_event+0x20c9/0x4d30
 #5: ffffffff8fafa788 (ehci_cf_port_reset_rwsem){.+.+}-{4:4}, at: hub_port_reset+0x14d/0x1810
locks held by khungtaskd/35: 1, last CPU#0:
 #0: ffffffff8ed5c6e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
locks held by kworker/u10:10/1110: 4, on CPU#1:
 #0: ffff888161adb140 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc9000679fc40 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffff88811a9e2490 (&jfs_ip->rdwrlock#3){++++}-{4:4}, at: jfs_get_block+0x14e/0xad0
 #3: ffff88811a9e2518 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: extAlloc+0x130/0x1010
locks held by klogd/5032: 1, last CPU#0:
 #0: ffffffff8ed5c6e0 (rcu_read_lock){....}-{1:3}, at: sock_def_readable+0xae/0x550
locks held by getty/5422: 2, on CPU#1:
 #0: ffff88816d79d0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000347b2e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360
locks held by syz-executor/13020: 2, on CPU#1:
 #0: ffff8881b03fe0e8 (&type->s_umount_key#94){++++}-{4:4}, at: deactivate_super+0xac/0xe0
 #1: ffff88816bf3a870 (&bdi->wb_switch_rwsem){+.+.}-{4:4}, at: sync_inodes_sb+0x20b/0xbf0
locks held by syz.8.2866/13883: 1, on CPU#0:
 #0: ffff8881b03fe0e8 (&type->s_umount_key#94){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
locks held by syz.3.4601/18450: 1, on CPU#0:
 #0: ffff8881b03fe0e8 (&type->s_umount_key#94){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
locks held by syz.2.5152/19865: 1, on CPU#0:
 #0: ffff8881761d1d38 (&mm->mmap_lock){++++}-{4:4}, at: vm_mmap_pgoff+0x1dd/0x4e0
locks held by syz.2.5152/19866: 4, last CPU#1:
 #0: ffff8881761d1d38 (&mm->mmap_lock){++++}-{4:4}, at: __mm_populate+0x182/0x390
 #1: ffffffff8ee8f980 (fs_reclaim){+.+.}-{0:0}, at: do_pte_missing+0x140c/0x34b0
 #2: ffffffff8eea55e0 (mmu_notifier_invalidate_range_start){+.+.}-{0:0}, at: fs_reclaim_acquire+0x7c/0x100
 #3: ffffffff8ed5c6e0 (rcu_read_lock){....}-{1:3}, at: __pte_offset_map+0x29/0x240

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

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+0x17d/0x390
 sys_info+0x135/0x170
 watchdog+0xfd7/0x1030
 kthread+0x38b/0x480
 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: 19866 Comm: syz.2.5152 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
RIP: 0010:lock_is_held_type+0xf2/0x150
Code: c5 0f 94 c3 eb 05 bb 01 00 00 00 48 c7 c7 84 c2 6f 8e e8 f1 1a 00 00 b8 ff ff ff ff 65 0f c1 05 dc ec b0 07 83 f8 01 75 25 9c <58> a9 00 02 00 00 75 39 41 f7 c4 00 02 00 00 74 01 fb 89 d8 5b 41
RSP: 0018:ffffc9000c407478 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000001 RCX: 8000000000000001
RDX: 0000000000000002 RSI: ffffffff8e6fc284 RDI: ffffffff8c6d9380
RBP: 00000000ffffffff R08: ffffea000678ba47 R09: 1ffffd4000cf1748
R10: dffffc0000000000 R11: fffff94000cf1749 R12: 0000000000000246
R13: ffff888173378000 R14: ffffffff8ed5c6e0 R15: 0000000000000001
FS:  00007f04611ba6c0(0000) GS:ffff8882a8cda000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f04611b9ff8 CR3: 00000001be6de000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 xas_next_entry+0x214/0x3f0
 next_uptodate_folio+0x29/0x6e0
 filemap_map_pages+0x174a/0x2170
 do_pte_missing+0x20ae/0x34b0
 handle_mm_fault+0x1a53/0x3750
 __get_user_pages+0x1675/0x2750
 populate_vma_page_range+0x2be/0x3c0
 __mm_populate+0x25f/0x390
 vm_mmap_pgoff+0x353/0x4e0
 do_syscall_64+0x166/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f046039e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f04611ba028 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f0460625fa0 RCX: 00007f046039e159
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 00007f046043506b R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0460626038 R14: 00007f0460625fa0 R15: 00007ffef57940f8
 </TASK>
