INFO: task syz-executor:8837 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:21592 pid:8837  tgid:8837  ppid:1      task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x14bc/0x5000
 schedule+0x165/0x360
 io_schedule+0x80/0xd0
 folio_wait_bit_common+0x6b0/0xb80
 __filemap_get_folio_mpol+0x13e/0xb00
 truncate_inode_pages_range+0x3f0/0xd90
 evict+0x607/0xae0
 evict_inodes+0x753/0x7e0
 generic_shutdown_super+0x9a/0x2c0
 kill_block_super+0x44/0x90
 deactivate_locked_super+0xbc/0x130
 cleanup_mnt+0x425/0x4c0
 task_work_run+0x1d4/0x260
 exit_to_user_mode_loop+0xff/0x4f0
 do_syscall_64+0x2d0/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa145f90af7
RSP: 002b:00007ffc7a47e7d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fa145fee72f RCX: 00007fa145f90af7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc7a47e890
RBP: 00007ffc7a47e890 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc7a47f920
R13: 00007fa145fee72f R14: 000000000033d6ac R15: 00007ffc7a47f960
 </TASK>

Showing all locks held in the system:
5 locks held by kworker/0:0H/11:
1 lock held by khungtaskd/35:
 #0: ffffffff8df419a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5652:
 #0: ffff888176c8c0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000356e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x449/0x1460
2 locks held by kworker/u9:64/31762:
 #0: ffff8881062a3948 ((wq_completion)quota_events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x1770
 #1: ffff888121024588 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880
1 lock held by syz-executor/8837:
 #0: ffff88802074c0e0 (&type->s_umount_key#109){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
1 lock held by syz.2.43096/15040:
 #0: ffff88802074c0e0 (&type->s_umount_key#109){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.7.43465/15952:
 #0: ffff88802074c0e0 (&type->s_umount_key#109){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.3.44267/17884:
3 locks held by syz.1.44269/17886:
1 lock held by syz.0.44270/17893:

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

NMI backtrace for cpu 1
CPU: 1 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+0x189/0x250
 nmi_cpu_backtrace+0x39e/0x3d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 sys_info+0x135/0x170
 watchdog+0xf95/0xfe0
 kthread+0x711/0x8a0
 ret_from_fork+0x599/0xb30
 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: 17887 Comm: syz.1.44269 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: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 c3 cc cc cc cc cc f3 0f 1e fa 89 f6 31 d2 e9 d2 7b 56 03 66
RSP: 0018:ffffc90000007e50 EFLAGS: 00000046
RAX: 000000000000e774 RBX: ffff888121023e40 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 000000000000e774 RDI: 0000000000000838
RBP: 0000000000000000 R08: ffffffff81af7055 R09: ffffffff998e64c8
R10: 0000000000000003 R11: ffffffff81718b10 R12: 00000000100044c9
R13: dffffc0000000000 R14: 000000000000e774 R15: 0000000000000020
FS:  00007f2bbe8146c0(0000) GS:ffff88818e832000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000000e000 CR3: 000000011ae72000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 lapic_next_event+0x11/0x20
 clockevents_program_event+0x1c9/0x350
 hrtimer_interrupt+0x620/0xaa0
 __sysvec_apic_timer_interrupt+0x102/0x3e0
 sysvec_apic_timer_interrupt+0xa1/0xc0
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:finish_task_switch+0x242/0x940
Code: 0f 84 c2 01 00 00 48 85 db 0f 85 e9 01 00 00 0f 1f 44 00 00 4c 8b 75 d0 4c 89 e7 e8 f8 b1 cc 09 e8 43 7b 37 00 fb 4c 8b 65 c0 <49> 8d bc 24 48 16 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc90004a17718 EFLAGS: 00000286
RAX: d1021c124e1d4c00 RBX: 0000000000000000 RCX: d1021c124e1d4c00
RDX: 0000000000000000 RSI: ffffffff8d792e14 RDI: ffffffff8bc08560
RBP: ffffc90004a17770 R08: ffffffff8f822377 R09: 1ffffffff1f0446e
R10: dffffc0000000000 R11: fffffbfff1f0446f R12: ffff888113033a80
R13: dffffc0000000000 R14: ffff8881026aba80 R15: ffff88812103b498
 __schedule+0x14c4/0x5000
 schedule+0x165/0x360
 schedule_timeout+0x12b/0x270
 snd_rawmidi_write+0x3a8/0xbc0
 vfs_write+0x27e/0xb30
 ksys_write+0x145/0x250
 do_syscall_64+0xfa/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2bbd98f7c9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f2bbe814038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f2bbdbe5fa0 RCX: 00007f2bbd98f7c9
RDX: 00000000fffffd2c RSI: 0000200000000000 RDI: 0000000000000008
RBP: 00007f2bbd9f297f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2bbdbe6038 R14: 00007f2bbdbe5fa0 R15: 00007fff6d3490e8
 </TASK>
