INFO: task syz-executor.5:5105 blocked for more than 143 seconds. Not tainted 6.2.0-rc7-syzkaller-00002-gd2d11f342b17 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:19160 pid:5105 ppid:1 flags:0x00004004 Call Trace: __schedule+0x13ca/0x43c0 schedule+0xc3/0x190 io_schedule+0x8c/0x100 folio_wait_bit_common+0x7fe/0x1210 __filemap_get_folio+0x415/0xe30 truncate_inode_pages_range+0x52b/0x1180 ntfs_evict_big_inode+0x30/0x480 evict+0x2a4/0x620 evict_inodes+0x605/0x6a0 generic_shutdown_super+0x98/0x310 kill_block_super+0x7e/0xe0 deactivate_locked_super+0xa4/0x110 cleanup_mnt+0x490/0x520 task_work_run+0x24a/0x300 exit_to_user_mode_loop+0xd1/0xf0 exit_to_user_mode_prepare+0xb1/0x140 syscall_exit_to_user_mode+0x54/0x2d0 do_syscall_64+0x4d/0xc0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f3d2608d537 RSP: 002b:00007ffd585b2b18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f3d2608d537 RDX: 00007ffd585b2bec RSI: 000000000000000a RDI: 00007ffd585b2be0 RBP: 00007ffd585b2be0 R08: 00000000ffffffff R09: 00007ffd585b29b0 R10: 0000555556ba28b3 R11: 0000000000000246 R12: 00007f3d260e6b24 R13: 00007ffd585b3ca0 R14: 0000555556ba2810 R15: 00007ffd585b3ce0 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8cf26e10 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xce0 1 lock held by rcu_tasks_trace/13: #0: ffffffff8cf27610 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xce0 1 lock held by khungtaskd/28: #0: ffffffff8cf26c40 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 2 locks held by getty/4753: #0: ffff88814a175098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 #1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1630 2 locks held by syz-fuzzer/5073: #0: ffff8880b983b1d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 #1: ffff8880b9828748 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x635/0x9d0 1 lock held by syz-executor.5/5105: #0: ffff8880213a60e0 (&type->s_umount_key#82){++++}-{3:3}, at: deactivate_super+0xad/0xf0 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc7-syzkaller-00002-gd2d11f342b17 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 Call Trace: dump_stack_lvl+0x1b5/0x2a0 nmi_cpu_backtrace+0x47b/0x500 nmi_trigger_cpumask_backtrace+0x1d3/0x430 watchdog+0xf70/0xfb0 kthread+0x270/0x300 ret_from_fork+0x1f/0x30 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 11 Comm: kworker/u4:1 Not tainted 6.2.0-rc7-syzkaller-00002-gd2d11f342b17 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 Workqueue: bat_events batadv_nc_worker RIP: 0010:lock_release+0xa/0xa70 Code: 80 e1 07 80 c1 03 38 c1 0f 8c 73 fd ff ff 4c 89 ef e8 1a 7a 74 00 e9 66 fd ff ff 0f 1f 44 00 00 f3 0f 1e fa 55 48 89 e5 41 57 <41> 56 41 55 41 54 53 48 83 e4 e0 48 81 ec 00 01 00 00 49 89 f5 48 RSP: 0018:ffffc90000107b30 EFLAGS: 00000286 RAX: ffffffff8a67fab4 RBX: ffff888029ac8ec0 RCX: ffff88813fe43a80 RDX: 0000000000000000 RSI: ffffffff8a67fabe RDI: ffff888029ac8ed8 RBP: ffffc90000107b38 R08: dffffc0000000000 R09: 0000000000000003 R10: ffffffffffffffff R11: dffffc0000000001 R12: 0000000000000400 R13: dffffc0000000000 R14: ffffffff8a67fabe R15: ffff88814680c4d0 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c000721000 CR3: 000000001cc1e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: _raw_spin_unlock_bh+0x1b/0x40 batadv_nc_purge_paths+0x30e/0x3b0 batadv_nc_worker+0x29e/0x580 process_one_work+0x96c/0x13e0 worker_thread+0xa63/0x1210 kthread+0x270/0x300 ret_from_fork+0x1f/0x30