Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.46' (ECDSA) to the list of known hosts. syzkaller login: [ 60.952603][ T6870] IPVS: ftp: loaded support on port[0] = 21 [ 60.957364][ T6866] IPVS: ftp: loaded support on port[0] = 21 [ 60.962751][ T6873] IPVS: ftp: loaded support on port[0] = 21 [ 60.974645][ T6874] IPVS: ftp: loaded support on port[0] = 21 [ 60.986186][ T6872] IPVS: ftp: loaded support on port[0] = 21 [ 60.996313][ T6871] IPVS: ftp: loaded support on port[0] = 21 [ 61.320530][ T516] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.339834][ T516] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 61.393123][ T7] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.402431][ T6980] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 61.410913][ T516] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.427171][ T7] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 61.444925][ T516] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 61.453762][ T6980] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 61.477240][ T6980] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 61.517361][ T99] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.525545][ T99] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 61.533908][ T21] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.555139][ T21] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 61.564624][ T6980] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 61.576986][ T6980] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 61.641986][ T7] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.650476][ T99] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.665489][ T99] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 61.675187][ T7] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 61.685168][ T2626] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program [ 61.695107][ T21] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.703238][ T21] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 61.731315][ T2626] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready executing program executing program [ 61.756089][ T2626] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 61.770627][ T99] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.783642][ T99] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 61.830187][ T2626] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program executing program [ 61.889186][ T21] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.897638][ T7] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.914967][ T21] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 61.922497][ T7] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program executing program executing program executing program executing program [ 61.944568][ T516] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 61.959375][ T516] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 61.970841][ T2626] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 61.986891][ T2626] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program executing program executing program executing program executing program [ 62.017673][ T2626] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 63.212088][ T7364] ttyprintk ttyprintk: tty_port_close_start: tty->count = 1 port count = 138 [ 63.222251][ C0] [ 63.222258][ C0] ====================================================== [ 63.222264][ C0] WARNING: possible circular locking dependency detected [ 63.222269][ C0] 5.9.0-rc6-next-20200924-syzkaller #0 Not tainted [ 63.222274][ C0] ------------------------------------------------------ [ 63.222279][ C0] syz-executor026/7364 is trying to acquire lock: [ 63.222285][ C0] ffffffff8a465260 (console_owner){-.-.}-{0:0}, at: console_unlock+0x36a/0xd20 [ 63.222304][ C0] [ 63.222308][ C0] but task is already holding lock: [ 63.222312][ C0] ffffffff8e5baaf8 (&port->lock){-.-.}-{2:2}, at: tty_port_close_start.part.0+0x28/0x550 [ 63.222330][ C0] [ 63.222335][ C0] which lock already depends on the new lock. [ 63.222337][ C0] [ 63.222340][ C0] [ 63.222345][ C0] the existing dependency chain (in reverse order) is: [ 63.222348][ C0] [ 63.222350][ C0] -> #2 (&port->lock){-.-.}-{2:2}: executing program [ 63.222367][ C0] _raw_spin_lock_irqsave+0x94/0xd0 [ 63.222371][ C0] tty_port_tty_get+0x1f/0x100 [ 63.222376][ C0] tty_port_default_wakeup+0x11/0x40 [ 63.222380][ C0] serial8250_tx_chars+0x487/0xa80 [ 63.222385][ C0] serial8250_handle_irq.part.0+0x328/0x3d0 [ 63.222390][ C0] serial8250_default_handle_irq+0xb2/0x220 [ 63.222395][ C0] serial8250_interrupt+0xe6/0x190 [ 63.222400][ C0] __handle_irq_event_percpu+0x20b/0x9e0 executing program [ 63.222404][ C0] handle_irq_event+0x102/0x290 [ 63.222408][ C0] handle_edge_irq+0x25f/0xd00 [ 63.222413][ C0] asm_call_on_stack+0xf/0x20 [ 63.222417][ C0] common_interrupt+0x115/0x1f0 [ 63.222421][ C0] asm_common_interrupt+0x1e/0x40 [ 63.222425][ C0] native_safe_halt+0xe/0x10 [ 63.222430][ C0] acpi_idle_do_entry+0x1e8/0x330 [ 63.222434][ C0] acpi_idle_enter+0x35a/0x550 [ 63.222438][ C0] cpuidle_enter_state+0x1ab/0xd20 [ 63.222442][ C0] cpuidle_enter+0x4a/0xa0 executing program [ 63.222446][ C0] do_idle+0x48e/0x730 [ 63.222451][ C0] cpu_startup_entry+0x14/0x20 [ 63.222456][ C0] secondary_startup_64_no_verify+0xa6/0xab [ 63.222458][ C0] [ 63.222461][ C0] -> #1 (&port_lock_key){-.-.}-{2:2}: [ 63.222477][ C0] _raw_spin_lock_irqsave+0x94/0xd0 [ 63.222482][ C0] serial8250_console_write+0x200/0xb30 [ 63.222486][ C0] console_unlock+0xac0/0xd20 [ 63.222490][ C0] vprintk_emit+0x2a6/0x6e0 [ 63.222494][ C0] vprintk_func+0x8d/0x1e0 [ 63.222498][ C0] printk+0xba/0xed [ 63.222502][ C0] register_console+0x55f/0x810 [ 63.222506][ C0] univ8250_console_init+0x3a/0x46 [ 63.222511][ C0] console_init+0x3c7/0x596 [ 63.222515][ C0] start_kernel+0x31c/0x4b1 [ 63.222519][ C0] secondary_startup_64_no_verify+0xa6/0xab [ 63.222522][ C0] [ 63.222524][ C0] -> #0 (console_owner){-.-.}-{0:0}: [ 63.222540][ C0] __lock_acquire+0x285b/0x56d0 [ 63.222545][ C0] lock_acquire+0x1f2/0xaa0 [ 63.222549][ C0] console_unlock+0x3e9/0xd20 [ 63.222553][ C0] vprintk_emit+0x2a6/0x6e0 [ 63.222557][ C0] vprintk_func+0x8d/0x1e0 [ 63.222561][ C0] printk+0xba/0xed [ 63.222566][ C0] tty_port_close_start.part.0+0x503/0x550 [ 63.222570][ C0] tty_port_close+0x46/0x170 [ 63.222574][ C0] tty_release+0x455/0xf60 [ 63.222577][ C0] __fput+0x285/0x920 [ 63.222582][ C0] task_work_run+0xdd/0x190 [ 63.222586][ C0] exit_to_user_mode_prepare+0x1e2/0x1f0 [ 63.222591][ C0] syscall_exit_to_user_mode+0x7a/0x2c0 [ 63.222596][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.222598][ C0] [ 63.222603][ C0] other info that might help us debug this: [ 63.222605][ C0] [ 63.222608][ C0] Chain exists of: [ 63.222611][ C0] console_owner --> &port_lock_key --> &port->lock [ 63.222631][ C0] [ 63.222636][ C0] Possible unsafe locking scenario: [ 63.222638][ C0] [ 63.222642][ C0] CPU0 CPU1 [ 63.222647][ C0] ---- ---- [ 63.222649][ C0] lock(&port->lock); [ 63.222660][ C0] lock(&port_lock_key); [ 63.222670][ C0] lock(&port->lock); [ 63.222679][ C0] lock(console_owner); [ 63.222686][ C0] [ 63.222689][ C0] *** DEADLOCK *** [ 63.222692][ C0] [ 63.222696][ C0] 3 locks held by syz-executor026/7364: [ 63.222699][ C0] #0: ffff8880a69301c0 (&tty->legacy_mutex){+.+.}-{3:3}, at: tty_lock+0xbd/0x120 [ 63.222718][ C0] #1: ffffffff8e5baaf8 (&port->lock){-.-.}-{2:2}, at: tty_port_close_start.part.0+0x28/0x550 [ 63.222740][ C0] #2: ffffffff8a5455e0 (console_lock){+.+.}-{0:0}, at: vprintk_func+0x8d/0x1e0 [ 63.222759][ C0] [ 63.222762][ C0] stack backtrace: [ 63.222769][ C0] CPU: 0 PID: 7364 Comm: syz-executor026 Not tainted 5.9.0-rc6-next-20200924-syzkaller #0 [ 63.222776][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.222779][ C0] Call Trace: [ 63.222782][ C0] dump_stack+0x198/0x1fb [ 63.222786][ C0] check_noncircular+0x25d/0x2e0 [ 63.222790][ C0] ? stack_trace_consume_entry+0x160/0x160 [ 63.222794][ C0] ? print_circular_bug+0x3a0/0x3a0 [ 63.222797][ C0] ? memcpy+0x39/0x60 [ 63.222801][ C0] ? alloc_chain_hlocks+0x230/0x770 [ 63.222805][ C0] __lock_acquire+0x285b/0x56d0 [ 63.222810][ C0] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 63.222813][ C0] lock_acquire+0x1f2/0xaa0 [ 63.222817][ C0] ? console_unlock+0x36a/0xd20 [ 63.222821][ C0] ? lock_release+0x890/0x890 [ 63.222825][ C0] ? lock_downgrade+0x830/0x830 [ 63.222828][ C0] ? do_raw_spin_lock+0x120/0x2b0 [ 63.222832][ C0] ? rwlock_bug.part.0+0x90/0x90 [ 63.222836][ C0] console_unlock+0x3e9/0xd20 [ 63.222840][ C0] ? console_unlock+0x36a/0xd20 [ 63.222844][ C0] ? syslog_print+0x570/0x570 [ 63.222847][ C0] ? lock_release+0x890/0x890 [ 63.222851][ C0] ? do_raw_spin_unlock+0x171/0x230 [ 63.222855][ C0] ? vprintk_func+0x8d/0x1e0 [ 63.222859][ C0] vprintk_emit+0x2a6/0x6e0 [ 63.222863][ C0] vprintk_func+0x8d/0x1e0 [ 63.222866][ C0] printk+0xba/0xed [ 63.222870][ C0] ? record_print_text.cold+0x16/0x16 [ 63.222874][ C0] ? check_preemption_disabled+0x50/0x130 [ 63.222879][ C0] ? _raw_spin_lock_irqsave+0xa9/0xd0 [ 63.222883][ C0] tty_port_close_start.part.0+0x503/0x550 [ 63.222887][ C0] tty_port_close+0x46/0x170 [ 63.222891][ C0] ? tpk_open+0x60/0x60 [ 63.222894][ C0] tty_release+0x455/0xf60 [ 63.222898][ C0] __fput+0x285/0x920 [ 63.222902][ C0] ? tty_release_struct+0xe0/0xe0 [ 63.222906][ C0] task_work_run+0xdd/0x190 [ 63.222910][ C0] exit_to_user_mode_prepare+0x1e2/0x1f0 [ 63.222915][ C0] syscall_exit_to_user_mode+0x7a/0x2c0 [ 63.222920][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.222923][ C0] RIP: 0033:0x406741 [ 63.222936][ C0] Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 24 1a 00 00 c3 48 83 ec 08 e8 6a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 b3 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 63.222941][ C0] RSP: 002b:00007ffdee97ef70 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 63.222951][ C0] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000406741 [ 63.222957][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 63.222963][ C0] RBP: 00000000006ddc30 R08: 0000000000000000 R09: 0000000000000000 [ 63.222969][ C0] R10: 00007ffdee97ef90 R11: 0000000000000293 R12: 00000000006ddc3c [ 63.222975][ C0] R13: 0000000000000001 R14: 000000000000002d R15: 20c49ba5e353f7cf executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program