[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 18.670368] audit: type=1400 audit(1518220433.825:6): avc: denied { map } for pid=4143 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.50' (ECDSA) to the list of known hosts. executing program executing program syzkaller login: [ 25.026369] audit: type=1400 audit(1518220440.182:7): avc: denied { map } for pid=4157 comm="syzkaller243361" path="/root/syzkaller243361034" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 25.063610] [ 25.065263] ====================================================== [ 25.071548] WARNING: possible circular locking dependency detected [ 25.077833] 4.15.0+ #216 Not tainted [ 25.081512] ------------------------------------------------------ [ 25.087801] syzkaller243361/4157 is trying to acquire lock: [ 25.093481] (&bdev->bd_mutex){+.+.}, at: [<000000003999265a>] blkdev_reread_part+0x1e/0x40 [ 25.101962] [ 25.101962] but task is already holding lock: [ 25.107902] (&lo->lo_ctl_mutex#2){+.+.}, at: [<00000000b6ff3ea8>] lo_compat_ioctl+0x109/0x140 [ 25.116636] [ 25.116636] which lock already depends on the new lock. [ 25.116636] [ 25.124934] [ 25.124934] the existing dependency chain (in reverse order) is: [ 25.132522] [ 25.132522] -> #2 (&lo->lo_ctl_mutex#2){+.+.}: [ 25.138565] __mutex_lock+0x16f/0x1a80 [ 25.142945] mutex_lock_nested+0x16/0x20 [ 25.147502] lo_release+0x85/0x190 [ 25.151544] __blkdev_put+0x62d/0x7f0 [ 25.155846] blkdev_put+0x85/0x4f0 [ 25.159879] blkdev_close+0x8b/0xb0 [ 25.163997] __fput+0x327/0x7e0 [ 25.167767] ____fput+0x15/0x20 [ 25.171537] task_work_run+0x199/0x270 [ 25.175924] exit_to_usermode_loop+0x275/0x2f0 [ 25.180996] do_syscall_64+0x6ed/0x940 [ 25.185389] entry_SYSCALL_64_after_hwframe+0x26/0x9b [ 25.191082] [ 25.191082] -> #1 (loop_index_mutex){+.+.}: [ 25.196875] __mutex_lock+0x16f/0x1a80 [ 25.201260] mutex_lock_nested+0x16/0x20 [ 25.205819] lo_open+0x1b/0xa0 [ 25.209504] __blkdev_get+0x2f9/0x10e0 [ 25.213883] blkdev_get+0x3a1/0xad0 [ 25.218000] blkdev_open+0x1c9/0x250 [ 25.222214] do_dentry_open+0x667/0xd40 [ 25.226679] vfs_open+0x107/0x220 [ 25.230621] path_openat+0x1151/0x3530 [ 25.234998] do_filp_open+0x25b/0x3b0 [ 25.239305] do_sys_open+0x502/0x6d0 [ 25.243513] SyS_open+0x2d/0x40 [ 25.247288] do_syscall_64+0x282/0x940 [ 25.251670] entry_SYSCALL_64_after_hwframe+0x26/0x9b [ 25.257349] [ 25.257349] -> #0 (&bdev->bd_mutex){+.+.}: [ 25.263045] lock_acquire+0x1d5/0x580 [ 25.267342] __mutex_lock+0x16f/0x1a80 [ 25.271728] mutex_lock_nested+0x16/0x20 [ 25.276284] blkdev_reread_part+0x1e/0x40 [ 25.280929] loop_reread_partitions+0x12f/0x1a0 [ 25.286094] loop_set_status+0x9ba/0xf60 [ 25.290644] loop_set_status_compat+0x9a/0x100 [ 25.295718] lo_compat_ioctl+0x114/0x140 [ 25.300280] compat_blkdev_ioctl+0x3ae/0x1840 [ 25.305273] compat_SyS_ioctl+0x151/0x2a30 [ 25.310002] do_fast_syscall_32+0x3ee/0xfa1 [ 25.314828] entry_SYSENTER_compat+0x54/0x63 [ 25.319724] [ 25.319724] other info that might help us debug this: [ 25.319724] [ 25.327840] Chain exists of: [ 25.327840] &bdev->bd_mutex --> loop_index_mutex --> &lo->lo_ctl_mutex#2 [ 25.327840] [ 25.339182] Possible unsafe locking scenario: [ 25.339182] [ 25.345217] CPU0 CPU1 [ 25.349853] ---- ---- [ 25.354491] lock(&lo->lo_ctl_mutex#2); [ 25.358528] lock(loop_index_mutex); [ 25.364817] lock(&lo->lo_ctl_mutex#2); [ 25.371369] lock(&bdev->bd_mutex); [ 25.375055] [ 25.375055] *** DEADLOCK *** [ 25.375055] [ 25.381087] 1 lock held by syzkaller243361/4157: [ 25.385810] #0: (&lo->lo_ctl_mutex#2){+.+.}, at: [<00000000b6ff3ea8>] lo_compat_ioctl+0x109/0x140 [ 25.394976] [ 25.394976] stack backtrace: [ 25.399445] CPU: 1 PID: 4157 Comm: syzkaller243361 Not tainted 4.15.0+ #216 [ 25.406512] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.415839] Call Trace: [ 25.418408] dump_stack+0x194/0x257 [ 25.422013] ? arch_local_irq_restore+0x53/0x53 [ 25.426667] print_circular_bug.isra.38+0x2cd/0x2dc [ 25.431653] ? save_trace+0xe0/0x2b0 [ 25.435342] __lock_acquire+0x30a8/0x3e00 [ 25.439477] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 25.444637] ? __lock_acquire+0x664/0x3e00 [ 25.448838] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 25.453997] ? check_noncircular+0x20/0x20 [ 25.458215] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 25.463381] ? __lock_acquire+0x664/0x3e00 [ 25.467585] ? check_noncircular+0x20/0x20 [ 25.471791] ? check_noncircular+0x20/0x20 [ 25.475999] ? print_irqtrace_events+0x270/0x270 [ 25.480736] ? print_irqtrace_events+0x270/0x270 [ 25.485467] ? find_held_lock+0x35/0x1d0 [ 25.489501] ? __is_insn_slot_addr+0x1fc/0x330 [ 25.494059] lock_acquire+0x1d5/0x580 [ 25.497833] ? lock_acquire+0x1d5/0x580 [ 25.501780] ? blkdev_reread_part+0x1e/0x40 [ 25.506072] ? lock_release+0xa40/0xa40 [ 25.510021] ? trace_event_raw_event_sched_switch+0x810/0x810 [ 25.515892] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 25.521071] ? rcu_note_context_switch+0x710/0x710 [ 25.525973] ? __might_sleep+0x95/0x190 [ 25.529918] ? blkdev_reread_part+0x1e/0x40 [ 25.534212] __mutex_lock+0x16f/0x1a80 [ 25.538079] ? blkdev_reread_part+0x1e/0x40 [ 25.542376] ? lock_release+0xa40/0xa40 [ 25.546325] ? is_bpf_text_address+0xa4/0x120 [ 25.550801] ? blkdev_reread_part+0x1e/0x40 [ 25.555095] ? do_raw_spin_trylock+0x190/0x190 [ 25.559660] ? mutex_lock_io_nested+0x1900/0x1900 [ 25.564483] ? trace_hardirqs_off+0xd/0x10 [ 25.568690] ? check_noncircular+0x20/0x20 [ 25.572897] ? depot_save_stack+0x2ca/0x460 [ 25.577192] ? check_noncircular+0x20/0x20 [ 25.581396] ? check_noncircular+0x20/0x20 [ 25.585601] ? save_stack+0x43/0xd0 [ 25.589196] ? __kasan_slab_free+0x11a/0x170 [ 25.593574] ? kasan_slab_free+0xe/0x10 [ 25.597519] ? __lock_is_held+0xb6/0x140 [ 25.601569] ? compat_blkdev_ioctl+0x3ae/0x1840 [ 25.606213] ? print_irqtrace_events+0x270/0x270 [ 25.610947] ? __wake_up_common_lock+0x1c2/0x310 [ 25.615677] ? lock_downgrade+0x980/0x980 [ 25.619800] ? mark_held_locks+0xaf/0x100 [ 25.623920] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 25.628991] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.633978] ? trace_hardirqs_on+0xd/0x10 [ 25.638098] ? __wake_up_common_lock+0x1c2/0x310 [ 25.642835] mutex_lock_nested+0x16/0x20 [ 25.646875] ? mutex_lock_nested+0x16/0x20 [ 25.651084] blkdev_reread_part+0x1e/0x40 [ 25.655206] loop_reread_partitions+0x12f/0x1a0 [ 25.659845] ? __loop_update_dio+0x640/0x640 [ 25.664229] loop_set_status+0x9ba/0xf60 [ 25.668260] loop_set_status_compat+0x9a/0x100 [ 25.672810] ? loop_set_status+0xf60/0xf60 [ 25.677036] ? trace_event_raw_event_sched_switch+0x810/0x810 [ 25.682927] lo_compat_ioctl+0x114/0x140 [ 25.686972] ? lo_ioctl+0x1b70/0x1b70 [ 25.690747] compat_blkdev_ioctl+0x3ae/0x1840 [ 25.695219] ? bfq_create_group_hierarchy+0x110/0x110 [ 25.700396] ? security_file_ioctl+0x7d/0xb0 [ 25.704794] ? security_file_ioctl+0x89/0xb0 [ 25.709191] compat_SyS_ioctl+0x151/0x2a30 [ 25.713403] ? do_fast_syscall_32+0x156/0xfa1 [ 25.717874] ? bfq_create_group_hierarchy+0x110/0x110 [ 25.723041] ? do_ioctl+0x60/0x60 [ 25.726472] do_fast_syscall_32+0x3ee/0xfa1 [ 25.730768] ? do_int80_syscall_32+0x9d0/0x9d0 [ 25.735322] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 25.740055] ? syscall_return_slowpath+0x550/0x550 [ 25.744969] ? syscall_return_slowpath+0x2ac/0x550 [ 25.749888] ? prepare_exit_to_usermode+0x350/0x350 [ 25.754894] ? retint_user+0x18/0x18 [ 25.758586] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 25.763406] entry_SYSENTER_compat+0x54/0x63 [ 25.767786] RIP: 0023:0xf7f8dc79 [ 25.771120] RSP: 002b:00000000ff85640c EFLAGS: 00000282 ORIG_RAX: 0000000000000036 executing program executing program executing program executing program executing program executing program [ 25.778803] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000004c02 [ 25.786064] RDX: 0000000020a19f74 RSI: 00000000080ef00c RDI: 000000000000003f [ 25.793307] RBP: 0000000000001000 R08: 0000000000000000 R09: 0000000000000000 [ 25.800548] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 25.807795] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing