[ 35.585270][ T26] audit: type=1800 audit(1549975800.504:27): pid=7447 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 35.611347][ T26] audit: type=1800 audit(1549975800.504:28): pid=7447 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 36.393771][ T26] audit: type=1800 audit(1549975801.354:29): pid=7447 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 36.414714][ T26] audit: type=1800 audit(1549975801.354:30): pid=7447 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.172' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 495.771446][ C1] hrtimer: interrupt took 25615 ns executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 607.685289][T15285] [ 607.687676][T15285] ====================================================== [ 607.694681][T15285] WARNING: possible circular locking dependency detected [ 607.701705][T15285] 5.0.0-rc6-next-20190212 #33 Not tainted [ 607.707413][T15285] ------------------------------------------------------ [ 607.714419][T15285] syz-executor979/15285 is trying to acquire lock: [ 607.720902][T15285] 00000000068c110e (&mm->mmap_sem){++++}, at: __do_page_fault+0x9e9/0xda0 [ 607.729431][T15285] [ 607.729431][T15285] but task is already holding lock: [ 607.736781][T15285] 000000005bb952bf (&sb->s_type->i_mutex_key#12){+.+.}, at: generic_file_write_iter+0xdf/0x610 [ 607.747112][T15285] [ 607.747112][T15285] which lock already depends on the new lock. [ 607.747112][T15285] [ 607.758227][T15285] [ 607.758227][T15285] the existing dependency chain (in reverse order) is: [ 607.767235][T15285] [ 607.767235][T15285] -> #2 (&sb->s_type->i_mutex_key#12){+.+.}: [ 607.775402][T15285] down_write+0x38/0x90 [ 607.780080][T15285] shmem_fallocate+0x15a/0xc60 [ 607.785364][T15285] ashmem_shrink_scan+0x1d7/0x4f0 [ 607.790904][T15285] ashmem_ioctl+0x2f0/0x11a0 [ 607.796009][T15285] do_vfs_ioctl+0xd6e/0x1390 [ 607.801202][T15285] ksys_ioctl+0xab/0xd0 [ 607.805875][T15285] __x64_sys_ioctl+0x73/0xb0 [ 607.810989][T15285] do_syscall_64+0x103/0x610 [ 607.816098][T15285] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 607.822495][T15285] [ 607.822495][T15285] -> #1 (ashmem_mutex){+.+.}: [ 607.829353][T15285] __mutex_lock+0xf7/0x1310 [ 607.834373][T15285] mutex_lock_nested+0x16/0x20 [ 607.839654][T15285] ashmem_mmap+0x55/0x520 [ 607.844498][T15285] mmap_region+0xc3a/0x1770 [ 607.850256][T15285] do_mmap+0x8e2/0x1080 [ 607.854924][T15285] vm_mmap_pgoff+0x1c5/0x230 [ 607.860025][T15285] ksys_mmap_pgoff+0x4aa/0x630 [ 607.865307][T15285] __x64_sys_mmap+0xe9/0x1b0 [ 607.870414][T15285] do_syscall_64+0x103/0x610 [ 607.875523][T15285] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 607.881922][T15285] [ 607.881922][T15285] -> #0 (&mm->mmap_sem){++++}: [ 607.888861][T15285] lock_acquire+0x16f/0x3f0 [ 607.893881][T15285] down_read+0x3b/0x90 [ 607.898480][T15285] __do_page_fault+0x9e9/0xda0 [ 607.903757][T15285] do_page_fault+0x71/0x581 [ 607.908770][T15285] page_fault+0x1e/0x30 [ 607.913450][T15285] iov_iter_fault_in_readable+0x377/0x450 [ 607.919692][T15285] generic_perform_write+0x195/0x530 [ 607.925505][T15285] __generic_file_write_iter+0x25e/0x630 [ 607.931652][T15285] generic_file_write_iter+0x360/0x610 [ 607.937622][T15285] __vfs_write+0x613/0x8e0 [ 607.942550][T15285] vfs_write+0x20c/0x580 [ 607.947306][T15285] ksys_write+0xea/0x1f0 [ 607.952745][T15285] __x64_sys_write+0x73/0xb0 [ 607.957854][T15285] do_syscall_64+0x103/0x610 [ 607.962961][T15285] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 607.969359][T15285] [ 607.969359][T15285] other info that might help us debug this: [ 607.969359][T15285] [ 607.979572][T15285] Chain exists of: [ 607.979572][T15285] &mm->mmap_sem --> ashmem_mutex --> &sb->s_type->i_mutex_key#12 [ 607.979572][T15285] [ 607.993174][T15285] Possible unsafe locking scenario: [ 607.993174][T15285] [ 608.000594][T15285] CPU0 CPU1 [ 608.005929][T15285] ---- ---- [ 608.011267][T15285] lock(&sb->s_type->i_mutex_key#12); [ 608.016813][T15285] lock(ashmem_mutex); [ 608.023459][T15285] lock(&sb->s_type->i_mutex_key#12); [ 608.032189][T15285] lock(&mm->mmap_sem); [ 608.036404][T15285] [ 608.036404][T15285] *** DEADLOCK *** [ 608.036404][T15285] [ 608.044634][T15285] 2 locks held by syz-executor979/15285: [ 608.050989][T15285] #0: 00000000f39db13f (sb_writers#5){.+.+}, at: vfs_write+0x429/0x580 [ 608.059306][T15285] #1: 000000005bb952bf (&sb->s_type->i_mutex_key#12){+.+.}, at: generic_file_write_iter+0xdf/0x610 [ 608.070050][T15285] [ 608.070050][T15285] stack backtrace: [ 608.075919][T15285] CPU: 1 PID: 15285 Comm: syz-executor979 Not tainted 5.0.0-rc6-next-20190212 #33 [ 608.085090][T15285] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 608.095120][T15285] Call Trace: [ 608.098390][T15285] dump_stack+0x172/0x1f0 [ 608.102707][T15285] print_circular_bug.isra.0.cold+0x1cc/0x28f [ 608.108752][T15285] __lock_acquire+0x2e7a/0x4790 [ 608.113579][T15285] ? retint_kernel+0x2d/0x2d [ 608.118158][T15285] ? trace_hardirqs_on_caller+0x6a/0x220 [ 608.123773][T15285] ? mark_held_locks+0xf0/0xf0 [ 608.128606][T15285] ? iov_iter_fault_in_readable+0x377/0x450 [ 608.134473][T15285] ? cmp_ex_sort+0xd0/0xd0 [ 608.138867][T15285] ? __lock_is_held+0xb6/0x140 [ 608.143607][T15285] lock_acquire+0x16f/0x3f0 [ 608.148092][T15285] ? __do_page_fault+0x9e9/0xda0 [ 608.153501][T15285] down_read+0x3b/0x90 [ 608.157548][T15285] ? __do_page_fault+0x9e9/0xda0 [ 608.162466][T15285] __do_page_fault+0x9e9/0xda0 [ 608.167208][T15285] ? trace_hardirqs_off_caller+0x65/0x220 [ 608.172904][T15285] do_page_fault+0x71/0x581 [ 608.177382][T15285] page_fault+0x1e/0x30 [ 608.181515][T15285] RIP: 0010:iov_iter_fault_in_readable+0x377/0x450 [ 608.187993][T15285] Code: 89 f6 41 88 57 e0 e8 28 b2 44 fe 45 85 f6 74 c1 e9 70 fe ff ff e8 99 b0 44 fe 0f 1f 00 0f ae e8 44 89 f0 48 8b 8d 68 ff ff ff <8a> 11 89 c3 0f 1f 00 41 88 57 d0 31 ff 89 de e8 f5 b1 44 fe 85 db [ 608.207572][T15285] RSP: 0018:ffff88801301f9b8 EFLAGS: 00010293 [ 608.213614][T15285] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000002020053f [ 608.221564][T15285] RDX: 0000000000000000 RSI: ffffffff832b9e57 RDI: 0000000000000007 [ 608.229512][T15285] RBP: ffff88801301fa58 R08: ffff888065470100 R09: fffff940003e69f7 [ 608.237459][T15285] R10: fffff940003e69f6 R11: ffffea0001f34fb7 R12: 0000000000001000 [ 608.245407][T15285] R13: 0000000000001000 R14: 0000000000000000 R15: ffff88801301fa30 [ 608.254111][T15285] ? iov_iter_fault_in_readable+0x367/0x450 [ 608.259982][T15285] ? iov_iter_fault_in_readable+0x367/0x450 [ 608.265854][T15285] ? csum_and_copy_to_iter+0x15c0/0x15c0 [ 608.271469][T15285] generic_perform_write+0x195/0x530 [ 608.276731][T15285] ? page_endio+0x780/0x780 [ 608.281211][T15285] ? current_time+0x140/0x140 [ 608.285870][T15285] __generic_file_write_iter+0x25e/0x630 [ 608.291813][T15285] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 608.297513][T15285] generic_file_write_iter+0x360/0x610 [ 608.302952][T15285] ? __generic_file_write_iter+0x630/0x630 [ 608.308740][T15285] ? __vfs_write+0x22f/0x8e0 [ 608.313323][T15285] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 608.319544][T15285] ? iov_iter_init+0xea/0x220 [ 608.324200][T15285] __vfs_write+0x613/0x8e0 [ 608.328594][T15285] ? kernel_read+0x120/0x120 [ 608.333165][T15285] ? rcu_read_lock_sched_held+0x110/0x130 [ 608.338859][T15285] ? rcu_sync_lockdep_assert+0x73/0xb0 [ 608.344293][T15285] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 608.351220][T15285] ? __sb_start_write+0x1ac/0x360 [ 608.356221][T15285] vfs_write+0x20c/0x580 [ 608.360445][T15285] ksys_write+0xea/0x1f0 [ 608.364669][T15285] ? __ia32_sys_read+0xb0/0xb0 [ 608.369414][T15285] ? do_syscall_64+0x26/0x610 [ 608.374074][T15285] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 608.380113][T15285] ? do_syscall_64+0x26/0x610 [ 608.384776][T15285] __x64_sys_write+0x73/0xb0 [ 608.389344][T15285] do_syscall_64+0x103/0x610 [ 608.393925][T15285] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 608.399803][T15285] RIP: 0033:0x447229 [ 608.403680][T15285] Code: e8 0c e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 608.423258][T15285] RSP: 002b:00007f017aaefce8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 executing program executing program [ 608.431644][T15285] RAX: ffffffffffffffda RBX: 00000000006dcc28 RCX: 0000000000447229 [ 608.439599][T15285] RDX: 00000000fffffda2 RSI: 0000000020000540 RDI: 0000000000000005 [ 608.447548][T15285] RBP: 00000000006dcc20 R08: 0000000000000000 R09: 0000000000000000 [ 608.456073][T15285] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dcc2c [ 608.464024][T15285] R13: 00007ffdaf385c6f R14: 00007f017aaf09c0 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