./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1196160080
<...>
Warning: Permanently added '10.128.0.236' (ED25519) to the list of known hosts.
execve("./syz-executor1196160080", ["./syz-executor1196160080"], 0x7ffc438568b0 /* 10 vars */) = 0
brk(NULL) = 0x55558f316000
brk(0x55558f316e00) = 0x55558f316e00
arch_prctl(ARCH_SET_FS, 0x55558f316480) = 0
set_tid_address(0x55558f316750) = 5077
set_robust_list(0x55558f316760, 24) = 0
rseq(0x55558f316da0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor1196160080", 4096) = 28
getrandom("\xf2\xd1\x9e\xce\x84\x85\x25\xf2", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x55558f316e00
brk(0x55558f337e00) = 0x55558f337e00
brk(0x55558f338000) = 0x55558f338000
mprotect(0x7fc66ae8a000, 16384, PROT_READ) = 0
mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000
mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000
mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000
rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0
rt_sigaction(SIGSEGV, {sa_handler=0x7fc66ade2970, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fc66adeab00}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7fc66ade2970, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fc66adeab00}, NULL, 8) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5079
./strace-static-x86_64: Process 5079 attached
[pid 5079] set_robust_list(0x55558f316760, 24) = 0
[pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5079] setpgid(0, 0) = 0
[pid 5079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5079] write(3, "1000", 4) = 4
[pid 5079] close(3) = 0
executing program
[pid 5079] write(1, "executing program\n", 18) = 18
[pid 5079] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5079] mkdirat(AT_FDCWD, "./file0", 000) = 0
[pid 5079] mkdir("./bus", 000) = 0
[pid 5079] mkdir("./file2", 0777) = 0
[pid 5079] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5079] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = 0
[pid 5079] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5079] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5079] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5079] chdir("./file0") = 0
[pid 5079] chdir("./bus") = 0
[pid 5079] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5079] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[ 54.967066][ T5079]
[ 54.969406][ T5079] ============================================
[ 54.975534][ T5079] WARNING: possible recursive locking detected
[ 54.981660][ T5079] 6.10.0-rc2-syzkaller-00269-g96e09b8f8166 #0 Not tainted
[ 54.988743][ T5079] --------------------------------------------
[ 54.994872][ T5079] syz-executor119/5079 is trying to acquire lock:
[ 55.001272][ T5079] ffff888029938420 (sb_writers#4){.+.+}-{0:0}, at: ovl_copy_up_flags+0x1110/0x4470
[ 55.010590][ T5079]
[ 55.010590][ T5079] but task is already holding lock:
[ 55.017945][ T5079] ffff888029938420 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90
[ 55.026756][ T5079]
[ 55.026756][ T5079] other info that might help us debug this:
[ 55.034805][ T5079] Possible unsafe locking scenario:
[ 55.034805][ T5079]
[ 55.042238][ T5079] CPU0
[ 55.045497][ T5079] ----
[ 55.048758][ T5079] lock(sb_writers#4);
[ 55.052901][ T5079] lock(sb_writers#4);
[ 55.057039][ T5079]
[ 55.057039][ T5079] *** DEADLOCK ***
[ 55.057039][ T5079]
[ 55.065164][ T5079] May be due to missing lock nesting notation
[ 55.065164][ T5079]
[ 55.073480][ T5079] 3 locks held by syz-executor119/5079:
[ 55.079005][ T5079] #0: ffff888023d2e420 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90
[ 55.088130][ T5079] #1: ffff888029938420 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90
[ 55.097244][ T5079] #2: ffff88807e282808 (&ovl_i_lock_key[depth]){+.+.}-{3:3}, at: ovl_copy_up_start+0x53/0x310
[ 55.107570][ T5079]
[ 55.107570][ T5079] stack backtrace:
[ 55.113444][ T5079] CPU: 0 PID: 5079 Comm: syz-executor119 Not tainted 6.10.0-rc2-syzkaller-00269-g96e09b8f8166 #0
[ 55.123921][ T5079] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
[ 55.133965][ T5079] Call Trace:
[ 55.137230][ T5079]
[ 55.140226][ T5079] dump_stack_lvl+0x241/0x360
[ 55.144923][ T5079] ? __pfx_dump_stack_lvl+0x10/0x10
[ 55.150108][ T5079] ? print_deadlock_bug+0x479/0x620
[ 55.155287][ T5079] validate_chain+0x15d3/0x5900
[ 55.160126][ T5079] ? mark_lock+0x9a/0x350
[ 55.164442][ T5079] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
[ 55.170753][ T5079] ? _raw_spin_unlock_irqrestore+0x8f/0x140
[ 55.176628][ T5079] ? lockdep_hardirqs_on+0x99/0x150
[ 55.181806][ T5079] ? __pfx_validate_chain+0x10/0x10
[ 55.187085][ T5079] ? _raw_spin_unlock_irqrestore+0xdd/0x140
[ 55.192963][ T5079] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 55.199270][ T5079] ? stack_trace_save+0x118/0x1d0
[ 55.204276][ T5079] ? stack_depot_save_flags+0x6e4/0x830
[ 55.209825][ T5079] ? kasan_save_track+0x51/0x80
[ 55.214662][ T5079] ? kasan_save_track+0x3f/0x80
[ 55.219497][ T5079] ? __kasan_kmalloc+0x98/0xb0
[ 55.224242][ T5079] ? kmalloc_trace_noprof+0x19c/0x2c0
[ 55.229599][ T5079] ? ovl_encode_real_fh+0xdf/0x410
[ 55.234691][ T5079] ? ovl_copy_up_flags+0xf32/0x4470
[ 55.239869][ T5079] ? ovl_tmpfile+0x262/0x6d0
[ 55.244441][ T5079] ? vfs_tmpfile+0x396/0x510
[ 55.249033][ T5079] ? do_tmpfile+0x156/0x340
[ 55.253520][ T5079] ? path_openat+0x2ab8/0x3280
[ 55.258264][ T5079] ? do_filp_open+0x235/0x490
[ 55.262924][ T5079] ? do_sys_openat2+0x13e/0x1d0
[ 55.267754][ T5079] ? __x64_sys_open+0x225/0x270
[ 55.272604][ T5079] ? do_syscall_64+0xf3/0x230
[ 55.277283][ T5079] ? mark_lock+0x9a/0x350
[ 55.281685][ T5079] __lock_acquire+0x1346/0x1fd0
[ 55.286618][ T5079] lock_acquire+0x1ed/0x550
[ 55.291127][ T5079] ? ovl_copy_up_flags+0x1110/0x4470
[ 55.296430][ T5079] ? __pfx_lock_acquire+0x10/0x10
[ 55.301437][ T5079] ? dput+0x81/0x2b0
[ 55.305452][ T5079] ? ovl_encode_real_fh+0x26c/0x410
[ 55.310633][ T5079] ? __pfx___might_resched+0x10/0x10
[ 55.315908][ T5079] ? ovl_encode_real_fh+0x26c/0x410
[ 55.321087][ T5079] ? safesetid_security_capable+0xb2/0x1d0
[ 55.326876][ T5079] ? __pfx_ovl_encode_real_fh+0x10/0x10
[ 55.332404][ T5079] ovl_start_write+0x11d/0x290
[ 55.337152][ T5079] ? ovl_copy_up_flags+0x1110/0x4470
[ 55.342415][ T5079] ovl_copy_up_flags+0x1110/0x4470
[ 55.347518][ T5079] ? __pfx_ovl_copy_up_flags+0x10/0x10
[ 55.352958][ T5079] ? __kasan_slab_alloc+0x66/0x80
[ 55.357975][ T5079] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 55.364045][ T5079] ? mark_lock+0x9a/0x350
[ 55.368381][ T5079] ? __lock_acquire+0x1346/0x1fd0
[ 55.373402][ T5079] ? from_vfsgid+0x6b/0x90
[ 55.377801][ T5079] ? inode_init_owner+0x1d2/0x360
[ 55.382812][ T5079] ovl_tmpfile+0x262/0x6d0
[ 55.387230][ T5079] ? __pfx_ovl_tmpfile+0x10/0x10
[ 55.392168][ T5079] ? _raw_spin_unlock+0x28/0x50
[ 55.397043][ T5079] ? d_alloc+0x142/0x190
[ 55.401272][ T5079] ? mode_strip_sgid+0x97/0x1a0
[ 55.406113][ T5079] vfs_tmpfile+0x396/0x510
[ 55.410520][ T5079] do_tmpfile+0x156/0x340
[ 55.414837][ T5079] ? __pfx_do_tmpfile+0x10/0x10
[ 55.419670][ T5079] ? init_file+0x15c/0x200
[ 55.424076][ T5079] path_openat+0x2ab8/0x3280
[ 55.428657][ T5079] ? _raw_spin_unlock_irqrestore+0xdd/0x140
[ 55.434535][ T5079] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 55.440875][ T5079] ? mark_lock+0x9a/0x350
[ 55.445188][ T5079] ? __lock_acquire+0x1346/0x1fd0
[ 55.450207][ T5079] ? mark_lock+0x9a/0x350
[ 55.454518][ T5079] ? __lock_acquire+0x1346/0x1fd0
[ 55.459519][ T5079] ? __pfx_path_openat+0x10/0x10
[ 55.464447][ T5079] do_filp_open+0x235/0x490
[ 55.468936][ T5079] ? __pfx_do_filp_open+0x10/0x10
[ 55.473947][ T5079] ? _raw_spin_unlock+0x28/0x50
[ 55.478811][ T5079] ? alloc_fd+0x59d/0x640
[ 55.483122][ T5079] do_sys_openat2+0x13e/0x1d0
[ 55.487785][ T5079] ? __pfx_do_sys_openat2+0x10/0x10
[ 55.492968][ T5079] ? lockdep_hardirqs_on+0x99/0x150
[ 55.498151][ T5079] ? _raw_spin_unlock_irq+0x2e/0x50
[ 55.503336][ T5079] ? ptrace_notify+0x279/0x380
[ 55.508089][ T5079] __x64_sys_open+0x225/0x270
[ 55.512777][ T5079] ? __pfx___x64_sys_open+0x10/0x10
[ 55.517982][ T5079] ? do_syscall_64+0x100/0x230
[ 55.522736][ T5079] do_syscall_64+0xf3/0x230
[ 55.527224][ T5079] ? clear_bhb_loop+0x35/0x90
[ 55.531881][ T5079] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 55.537765][ T5079] RIP: 0033:0x7fc66ae17e19
[ 55.542164][ T5079] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[pid 5079] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5079] exit_group(0) = ?
[pid 5079] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5079, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 55.561754][ T5079] RSP: 002b:00007ffd40dfe628 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
[ 55.570156][ T5079] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc66ae17e19
[ 55.578110][ T5079] RDX: 000000000000050f RSI: 0000000000591002 RDI: 0000000020000100
[ 55.586063][ T5079] RBP: 0000000000000000 R08: 00007ffd40dfe660 R09: 00007ffd40dfe660
[ 55.594023][ T5079] R10: 00007ffd40dfe660 R11: 0000000000000246 R12: 00007ffd40dfe660
[ 55.601984][ T5079] R13: 00007ffd40dfe8e8 R14: 431bde82d7b634db R15: 00007fc66ae60097
[ 55.609945][ T5079]
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5080 attached
, child_tidptr=0x55558f316750) = 5080
[pid 5080] set_robust_list(0x55558f316760, 24) = 0
[pid 5080] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5080] setpgid(0, 0) = 0
[pid 5080] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5080] write(3, "1000", 4executing program
) = 4
[pid 5080] close(3) = 0
[pid 5080] write(1, "executing program\n", 18) = 18
[pid 5080] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5080] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5080] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5080] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5080] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5080] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5080] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5080] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5080] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5080] chdir("./file0") = 0
[pid 5080] chdir("./bus") = 0
[pid 5080] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5080] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5080] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5080] exit_group(0) = ?
[pid 5080] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5080, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
[ 55.694906][ T5080] overlay: filesystem on ./file0 not supported as upperdir
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5081 attached
, child_tidptr=0x55558f316750) = 5081
[pid 5081] set_robust_list(0x55558f316760, 24) = 0
[pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5081] setpgid(0, 0) = 0
[pid 5081] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5081] write(3, "1000", 4) = 4
[pid 5081] close(3) = 0
executing program
[pid 5081] write(1, "executing program\n", 18) = 18
[pid 5081] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5081] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5081] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5081] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5081] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5081] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5081] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5081] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5081] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5081] chdir("./file0") = 0
[pid 5081] chdir("./bus") = 0
[pid 5081] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5081] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5081] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5081] exit_group(0) = ?
[pid 5081] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5081, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[ 55.822626][ T5081] overlay: filesystem on ./file0 not supported as upperdir
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5082 attached
, child_tidptr=0x55558f316750) = 5082
[pid 5082] set_robust_list(0x55558f316760, 24) = 0
[pid 5082] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5082] setpgid(0, 0) = 0
[pid 5082] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5082] write(3, "1000", 4executing program
) = 4
[pid 5082] close(3) = 0
[pid 5082] write(1, "executing program\n", 18) = 18
[pid 5082] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5082] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5082] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5082] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5082] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5082] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5082] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5082] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5082] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5082] chdir("./file0") = 0
[pid 5082] chdir("./bus") = 0
[pid 5082] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5082] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5082] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5082] exit_group(0) = ?
[pid 5082] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5082, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5083
./strace-static-x86_64: Process 5083 attached
[pid 5083] set_robust_list(0x55558f316760, 24) = 0
[pid 5083] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5083] setpgid(0, 0) = 0
[ 55.967436][ T5082] overlay: filesystem on ./file0 not supported as upperdir
[pid 5083] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5083] write(3, "1000", 4) = 4
[pid 5083] close(3) = 0
executing program
[pid 5083] write(1, "executing program\n", 18) = 18
[pid 5083] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5083] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5083] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5083] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5083] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5083] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5083] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5083] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5083] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5083] chdir("./file0") = 0
[pid 5083] chdir("./bus") = 0
[pid 5083] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[ 56.069855][ T5083] overlay: filesystem on ./file0 not supported as upperdir
[pid 5083] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5083] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5083] exit_group(0) = ?
[pid 5083] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5083, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5084 attached
[pid 5084] set_robust_list(0x55558f316760, 24) = 0
[pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5084] setpgid(0, 0) = 0
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5084
[pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5084] write(3, "1000", 4) = 4
[pid 5084] close(3) = 0
[pid 5084] write(1, "executing program\n", 18executing program
) = 18
[pid 5084] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5084] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5084] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5084] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5084] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5084] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5084] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5084] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5084] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5084] chdir("./file0") = 0
[pid 5084] chdir("./bus") = 0
[pid 5084] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5084] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5084] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5084] exit_group(0) = ?
[pid 5084] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5084, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
[ 56.199356][ T5084] overlay: filesystem on ./file0 not supported as upperdir
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5085 attached
, child_tidptr=0x55558f316750) = 5085
[pid 5085] set_robust_list(0x55558f316760, 24) = 0
[pid 5085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5085] setpgid(0, 0) = 0
[pid 5085] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5085] write(3, "1000", 4) = 4
[pid 5085] close(3) = 0
[pid 5085] write(1, "executing program\n", 18executing program
) = 18
[pid 5085] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5085] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5085] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5085] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5085] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5085] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5085] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5085] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5085] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5085] chdir("./file0") = 0
[pid 5085] chdir("./bus") = 0
[pid 5085] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5085] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5085] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5085] exit_group(0) = ?
[pid 5085] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5085, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
[ 56.293285][ T5085] overlay: filesystem on ./file0 not supported as upperdir
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5086 attached
, child_tidptr=0x55558f316750) = 5086
[pid 5086] set_robust_list(0x55558f316760, 24) = 0
[pid 5086] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5086] setpgid(0, 0) = 0
[pid 5086] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5086] write(3, "1000", 4) = 4
[pid 5086] close(3) = 0
[pid 5086] write(1, "executing program\n", 18executing program
) = 18
[pid 5086] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5086] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5086] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5086] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5086] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5086] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5086] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5086] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5086] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5086] chdir("./file0") = 0
[pid 5086] chdir("./bus") = 0
[pid 5086] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5086] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5086] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5086] exit_group(0) = ?
[pid 5086] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5086, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5087 attached
[pid 5087] set_robust_list(0x55558f316760, 24) = 0
[pid 5087] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5087] setpgid(0, 0) = 0
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5087
[pid 5087] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[ 56.445274][ T5086] overlay: filesystem on ./file0 not supported as upperdir
[pid 5087] write(3, "1000", 4) = 4
[pid 5087] close(3) = 0
executing program
[pid 5087] write(1, "executing program\n", 18) = 18
[pid 5087] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5087] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5087] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5087] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5087] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5087] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5087] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5087] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5087] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5087] chdir("./file0") = 0
[pid 5087] chdir("./bus") = 0
[pid 5087] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5087] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5087] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5087] exit_group(0) = ?
[pid 5087] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5087, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
[ 56.535048][ T5087] overlay: filesystem on ./file0 not supported as upperdir
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5088
./strace-static-x86_64: Process 5088 attached
[pid 5088] set_robust_list(0x55558f316760, 24) = 0
[pid 5088] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5088] setpgid(0, 0) = 0
[pid 5088] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5088] write(3, "1000", 4) = 4
[pid 5088] close(3) = 0
executing program
[pid 5088] write(1, "executing program\n", 18) = 18
[pid 5088] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5088] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5088] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5088] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5088] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5088] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5088] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5088] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5088] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5088] chdir("./file0") = 0
[pid 5088] chdir("./bus") = 0
[pid 5088] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5088] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5088] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5088] exit_group(0) = ?
[ 56.655342][ T5088] overlay: filesystem on ./file0 not supported as upperdir
[pid 5088] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5088, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5089 attached
[pid 5089] set_robust_list(0x55558f316760, 24
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5089
[pid 5089] <... set_robust_list resumed>) = 0
[pid 5089] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5089] setpgid(0, 0) = 0
[pid 5089] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5089] write(3, "1000", 4) = 4
[pid 5089] close(3executing program
) = 0
[pid 5089] write(1, "executing program\n", 18) = 18
[pid 5089] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5089] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5089] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5089] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5089] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5089] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5089] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5089] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5089] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5089] chdir("./file0") = 0
[pid 5089] chdir("./bus") = 0
[pid 5089] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5089] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5089] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5089] exit_group(0) = ?
[pid 5089] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5089, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5090
./strace-static-x86_64: Process 5090 attached
[pid 5090] set_robust_list(0x55558f316760, 24) = 0
[pid 5090] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5090] setpgid(0, 0) = 0
[pid 5090] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5090] write(3, "1000", 4) = 4
[pid 5090] close(3) = 0
[pid 5090] write(1, "executing program\n", 18executing program
) = 18
[pid 5090] chdir(NULL) = -1 EFAULT (Bad address)
[ 56.820416][ T5089] overlay: filesystem on ./file0 not supported as upperdir
[pid 5090] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5090] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5090] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5090] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5090] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5090] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5090] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5090] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5090] chdir("./file0") = 0
[pid 5090] chdir("./bus") = 0
[pid 5090] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5090] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5090] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5090] exit_group(0) = ?
[pid 5090] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5090, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5091
./strace-static-x86_64: Process 5091 attached
[pid 5091] set_robust_list(0x55558f316760, 24) = 0
[pid 5091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[ 56.884543][ T5090] overlay: filesystem on ./file0 not supported as upperdir
[pid 5091] setpgid(0, 0) = 0
[pid 5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5091] write(3, "1000", 4) = 4
[pid 5091] close(3) = 0
[pid 5091] write(1, "executing program\n", 18executing program
) = 18
[pid 5091] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5091] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5091] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5091] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5091] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5091] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5091] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5091] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5091] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5091] chdir("./file0") = 0
[pid 5091] chdir("./bus") = 0
[pid 5091] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[ 56.984077][ T5091] overlay: filesystem on ./file0 not supported as upperdir
[pid 5091] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5091] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5091] exit_group(0) = ?
[pid 5091] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5091, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5092 attached
[pid 5092] set_robust_list(0x55558f316760, 24) = 0
[pid 5092] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5092] setpgid(0, 0) = 0
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5092
[pid 5092] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5092] write(3, "1000", 4) = 4
[pid 5092] close(3) = 0
executing program
[pid 5092] write(1, "executing program\n", 18) = 18
[pid 5092] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5092] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5092] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5092] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5092] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5092] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5092] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5092] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5092] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5092] chdir("./file0") = 0
[pid 5092] chdir("./bus") = 0
[pid 5092] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5092] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5092] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5092] exit_group(0) = ?
[pid 5092] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5092, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5093 attached
[ 57.113881][ T5092] overlay: filesystem on ./file0 not supported as upperdir
[pid 5093] set_robust_list(0x55558f316760, 24
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5093
[pid 5093] <... set_robust_list resumed>) = 0
[pid 5093] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5093] setpgid(0, 0) = 0
[pid 5093] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5093] write(3, "1000", 4) = 4
[pid 5093] close(3) = 0
[pid 5093] write(1, "executing program\n", 18executing program
) = 18
[pid 5093] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5093] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5093] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5093] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5093] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5093] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5093] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5093] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5093] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5093] chdir("./file0") = 0
[pid 5093] chdir("./bus") = 0
[pid 5093] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5093] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5093] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5093] exit_group(0) = ?
[pid 5093] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5093, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5094 attached
, child_tidptr=0x55558f316750) = 5094
[pid 5094] set_robust_list(0x55558f316760, 24) = 0
[pid 5094] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5094] setpgid(0, 0) = 0
[pid 5094] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5094] write(3, "1000", 4) = 4
[pid 5094] close(3) = 0
[pid 5094] write(1, "executing program\n", 18executing program
) = 18
[pid 5094] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5094] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5094] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5094] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5094] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5094] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5094] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5094] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5094] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5094] chdir("./file0") = 0
[pid 5094] chdir("./bus") = 0
[pid 5094] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5094] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5094] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5094] exit_group(0) = ?
[ 57.208121][ T5093] overlay: filesystem on ./file0 not supported as upperdir
[ 57.243154][ T5094] overlay: filesystem on ./file0 not supported as upperdir
[pid 5094] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5094, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5095
./strace-static-x86_64: Process 5095 attached
[pid 5095] set_robust_list(0x55558f316760, 24) = 0
[pid 5095] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5095] setpgid(0, 0) = 0
[pid 5095] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5095] write(3, "1000", 4) = 4
[pid 5095] close(3) = 0
[pid 5095] write(1, "executing program\n", 18executing program
) = 18
[pid 5095] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5095] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5095] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5095] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5095] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5095] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5095] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5095] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5095] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5095] chdir("./file0") = 0
[pid 5095] chdir("./bus") = 0
[pid 5095] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5095] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5095] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5095] exit_group(0) = ?
[ 57.393167][ T5095] overlay: filesystem on ./file0 not supported as upperdir
[pid 5095] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5095, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5096
./strace-static-x86_64: Process 5096 attached
[pid 5096] set_robust_list(0x55558f316760, 24) = 0
[pid 5096] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5096] setpgid(0, 0) = 0
[pid 5096] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5096] write(3, "1000", 4) = 4
[pid 5096] close(3) = 0
[pid 5096] write(1, "executing program\n", 18executing program
) = 18
[pid 5096] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5096] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5096] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5096] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5096] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5096] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5096] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5096] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5096] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5096] chdir("./file0") = 0
[pid 5096] chdir("./bus") = 0
[pid 5096] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5096] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5096] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5096] exit_group(0) = ?
[pid 5096] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5096, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5097
./strace-static-x86_64: Process 5097 attached
[pid 5097] set_robust_list(0x55558f316760, 24) = 0
[pid 5097] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5097] setpgid(0, 0) = 0
[ 57.484191][ T5096] overlay: filesystem on ./file0 not supported as upperdir
[pid 5097] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5097] write(3, "1000", 4) = 4
[pid 5097] close(3) = 0
executing program
[pid 5097] write(1, "executing program\n", 18) = 18
[pid 5097] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5097] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5097] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5097] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5097] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5097] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5097] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5097] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5097] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5097] chdir("./file0") = 0
[pid 5097] chdir("./bus") = 0
[pid 5097] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5097] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[ 57.579791][ T5097] overlay: filesystem on ./file0 not supported as upperdir
[pid 5097] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5097] exit_group(0) = ?
[pid 5097] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5097, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5098
./strace-static-x86_64: Process 5098 attached
[pid 5098] set_robust_list(0x55558f316760, 24) = 0
[pid 5098] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5098] setpgid(0, 0) = 0
[pid 5098] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5098] write(3, "1000", 4) = 4
[pid 5098] close(3) = 0
executing program
[pid 5098] write(1, "executing program\n", 18) = 18
[pid 5098] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5098] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5098] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5098] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5098] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5098] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5098] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5098] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5098] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5098] chdir("./file0") = 0
[pid 5098] chdir("./bus") = 0
[pid 5098] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5098] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5098] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5098] exit_group(0) = ?
[pid 5098] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5098, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5099 attached
, child_tidptr=0x55558f316750) = 5099
[pid 5099] set_robust_list(0x55558f316760, 24) = 0
[pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5099] setpgid(0, 0) = 0
[pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5099] write(3, "1000", 4) = 4
executing program
[pid 5099] close(3) = 0
[pid 5099] write(1, "executing program\n", 18) = 18
[pid 5099] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5099] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5099] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5099] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5099] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[ 57.751444][ T5098] overlay: filesystem on ./file0 not supported as upperdir
[pid 5099] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5099] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5099] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5099] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5099] chdir("./file0") = 0
[pid 5099] chdir("./bus") = 0
[pid 5099] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5099] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5099] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5099] exit_group(0) = ?
[ 57.807605][ T5099] overlay: filesystem on ./file0 not supported as upperdir
[pid 5099] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5099, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5100 attached
, child_tidptr=0x55558f316750) = 5100
[pid 5100] set_robust_list(0x55558f316760, 24) = 0
[pid 5100] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5100] setpgid(0, 0) = 0
[pid 5100] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5100] write(3, "1000", 4) = 4
[pid 5100] close(3) = 0
[pid 5100] write(1, "executing program\n", 18executing program
) = 18
[pid 5100] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5100] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5100] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5100] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5100] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5100] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5100] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5100] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5100] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5100] chdir("./file0") = 0
[pid 5100] chdir("./bus") = 0
[pid 5100] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5100] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5100] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5100] exit_group(0) = ?
[pid 5100] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5100, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5101 attached
, child_tidptr=0x55558f316750) = 5101
[pid 5101] set_robust_list(0x55558f316760, 24) = 0
[pid 5101] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5101] setpgid(0, 0) = 0
[pid 5101] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5101] write(3, "1000", 4) = 4
[pid 5101] close(3) = 0
[pid 5101] write(1, "executing program\n", 18executing program
[ 57.903634][ T5100] overlay: filesystem on ./file0 not supported as upperdir
) = 18
[pid 5101] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5101] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5101] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5101] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5101] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5101] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5101] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5101] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5101] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5101] chdir("./file0") = 0
[pid 5101] chdir("./bus") = 0
[pid 5101] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5101] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5101] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5101] exit_group(0) = ?
[pid 5101] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5101, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5102 attached
, child_tidptr=0x55558f316750) = 5102
[ 57.968342][ T5101] overlay: filesystem on ./file0 not supported as upperdir
[pid 5102] set_robust_list(0x55558f316760, 24) = 0
[pid 5102] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5102] setpgid(0, 0) = 0
[pid 5102] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5102] write(3, "1000", 4) = 4
[pid 5102] close(3) = 0
executing program
[pid 5102] write(1, "executing program\n", 18) = 18
[pid 5102] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5102] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5102] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5102] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5102] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5102] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5102] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5102] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5102] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5102] chdir("./file0") = 0
[pid 5102] chdir("./bus") = 0
[pid 5102] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5102] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5102] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5102] exit_group(0) = ?
[pid 5102] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5102, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
[ 58.094171][ T5102] overlay: filesystem on ./file0 not supported as upperdir
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5103
./strace-static-x86_64: Process 5103 attached
[pid 5103] set_robust_list(0x55558f316760, 24) = 0
[pid 5103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5103] setpgid(0, 0) = 0
[pid 5103] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5103] write(3, "1000", 4) = 4
[pid 5103] close(3) = 0
executing program
[pid 5103] write(1, "executing program\n", 18) = 18
[pid 5103] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5103] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5103] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5103] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5103] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5103] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5103] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5103] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5103] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5103] chdir("./file0") = 0
[pid 5103] chdir("./bus") = 0
[pid 5103] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5103] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5103] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5103] exit_group(0) = ?
[pid 5103] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5103, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
[ 58.201343][ T5103] overlay: filesystem on ./file0 not supported as upperdir
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5104
./strace-static-x86_64: Process 5104 attached
[pid 5104] set_robust_list(0x55558f316760, 24) = 0
[pid 5104] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5104] setpgid(0, 0) = 0
[pid 5104] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5104] write(3, "1000", 4) = 4
[pid 5104] close(3) = 0
executing program
[pid 5104] write(1, "executing program\n", 18) = 18
[pid 5104] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5104] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5104] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5104] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5104] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5104] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5104] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5104] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5104] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5104] chdir("./file0") = 0
[pid 5104] chdir("./bus") = 0
[pid 5104] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5104] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5104] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5104] exit_group(0) = ?
[pid 5104] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5104, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 58.271494][ T5104] overlay: filesystem on ./file0 not supported as upperdir
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5105 attached
, child_tidptr=0x55558f316750) = 5105
[pid 5105] set_robust_list(0x55558f316760, 24) = 0
[pid 5105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5105] setpgid(0, 0) = 0
[pid 5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5105] write(3, "1000", 4executing program
) = 4
[pid 5105] close(3) = 0
[pid 5105] write(1, "executing program\n", 18) = 18
[pid 5105] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5105] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5105] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5105] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5105] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5105] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5105] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5105] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5105] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5105] chdir("./file0") = 0
[pid 5105] chdir("./bus") = 0
[pid 5105] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[ 58.344098][ T5105] overlay: filesystem on ./file0 not supported as upperdir
[pid 5105] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5105] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5105] exit_group(0) = ?
[pid 5105] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5105, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5106
./strace-static-x86_64: Process 5106 attached
[pid 5106] set_robust_list(0x55558f316760, 24) = 0
[pid 5106] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5106] setpgid(0, 0) = 0
[pid 5106] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5106] write(3, "1000", 4) = 4
[pid 5106] close(3) = 0
executing program
[pid 5106] write(1, "executing program\n", 18) = 18
[pid 5106] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5106] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5106] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5106] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5106] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5106] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5106] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5106] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5106] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5106] chdir("./file0") = 0
[pid 5106] chdir("./bus") = 0
[pid 5106] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5106] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5106] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5106] exit_group(0) = ?
[pid 5106] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5106, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5107 attached
, child_tidptr=0x55558f316750) = 5107
[ 58.486175][ T5106] overlay: filesystem on ./file0 not supported as upperdir
[pid 5107] set_robust_list(0x55558f316760, 24) = 0
[pid 5107] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5107] setpgid(0, 0) = 0
[pid 5107] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5107] write(3, "1000", 4) = 4
[pid 5107] close(3) = 0
[pid 5107] write(1, "executing program\n", 18executing program
) = 18
[pid 5107] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5107] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5107] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5107] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5107] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5107] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5107] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5107] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5107] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5107] chdir("./file0") = 0
[pid 5107] chdir("./bus") = 0
[pid 5107] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5107] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5107] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5107] exit_group(0) = ?
[pid 5107] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5107, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
[ 58.599068][ T5107] overlay: filesystem on ./file0 not supported as upperdir
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5108
./strace-static-x86_64: Process 5108 attached
[pid 5108] set_robust_list(0x55558f316760, 24) = 0
[pid 5108] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5108] setpgid(0, 0) = 0
[pid 5108] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5108] write(3, "1000", 4) = 4
[pid 5108] close(3) = 0
[pid 5108] write(1, "executing program\n", 18executing program
) = 18
[pid 5108] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5108] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5108] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5108] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5108] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5108] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5108] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5108] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5108] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5108] chdir("./file0") = 0
[pid 5108] chdir("./bus") = 0
[pid 5108] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5108] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5108] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5108] exit_group(0) = ?
[pid 5108] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5108, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5109 attached
, child_tidptr=0x55558f316750) = 5109
[ 58.720396][ T5108] overlay: filesystem on ./file0 not supported as upperdir
[pid 5109] set_robust_list(0x55558f316760, 24) = 0
[pid 5109] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5109] setpgid(0, 0) = 0
[pid 5109] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5109] write(3, "1000", 4) = 4
[pid 5109] close(3) = 0
[pid 5109] write(1, "executing program\n", 18executing program
) = 18
[pid 5109] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5109] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5109] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5109] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5109] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5109] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5109] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5109] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5109] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5109] chdir("./file0") = 0
[pid 5109] chdir("./bus") = 0
[pid 5109] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5109] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5109] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5109] exit_group(0) = ?
[pid 5109] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5109, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
[ 58.844689][ T5109] overlay: filesystem on ./file0 not supported as upperdir
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5110
./strace-static-x86_64: Process 5110 attached
[pid 5110] set_robust_list(0x55558f316760, 24) = 0
[pid 5110] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5110] setpgid(0, 0) = 0
[pid 5110] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5110] write(3, "1000", 4) = 4
[pid 5110] close(3) = 0
[pid 5110] write(1, "executing program\n", 18executing program
) = 18
[pid 5110] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5110] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5110] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5110] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5110] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5110] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5110] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5110] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5110] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5110] chdir("./file0") = 0
[pid 5110] chdir("./bus") = 0
[pid 5110] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5110] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5110] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5110] exit_group(0) = ?
[pid 5110] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5110, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5111 attached
[pid 5111] set_robust_list(0x55558f316760, 24
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5111
[pid 5111] <... set_robust_list resumed>) = 0
[pid 5111] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5111] setpgid(0, 0) = 0
[pid 5111] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5111] write(3, "1000", 4) = 4
[pid 5111] close(3) = 0
[pid 5111] write(1, "executing program\n", 18) = 18
executing program
[pid 5111] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5111] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[ 58.978632][ T5110] overlay: filesystem on ./file0 not supported as upperdir
[pid 5111] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5111] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5111] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5111] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5111] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5111] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5111] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5111] chdir("./file0") = 0
[pid 5111] chdir("./bus") = 0
[pid 5111] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5111] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5111] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5111] exit_group(0) = ?
[ 59.057656][ T5111] overlay: filesystem on ./file0 not supported as upperdir
[pid 5111] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5111, si_uid=0, si_status=0, si_utime=0, si_stime=2 /* 0.02 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5112
./strace-static-x86_64: Process 5112 attached
[pid 5112] set_robust_list(0x55558f316760, 24) = 0
[pid 5112] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5112] setpgid(0, 0) = 0
[pid 5112] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5112] write(3, "1000", 4) = 4
[pid 5112] close(3) = 0
[pid 5112] write(1, "executing program\n", 18executing program
) = 18
[pid 5112] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5112] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5112] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5112] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5112] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5112] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5112] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5112] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5112] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5112] chdir("./file0") = 0
[pid 5112] chdir("./bus") = 0
[pid 5112] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5112] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5112] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5112] exit_group(0) = ?
[pid 5112] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5112, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5113 attached
[pid 5113] set_robust_list(0x55558f316760, 24) = 0
[pid 5113] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5113] setpgid(0, 0) = 0
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5113
[pid 5113] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[ 59.206702][ T5112] overlay: filesystem on ./file0 not supported as upperdir
[pid 5113] write(3, "1000", 4) = 4
[pid 5113] close(3) = 0
executing program
[pid 5113] write(1, "executing program\n", 18) = 18
[pid 5113] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5113] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5113] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5113] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5113] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5113] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5113] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5113] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5113] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5113] chdir("./file0") = 0
[pid 5113] chdir("./bus") = 0
[pid 5113] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5113] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5113] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5113] exit_group(0) = ?
[pid 5113] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5113, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5114 attached
, child_tidptr=0x55558f316750) = 5114
[pid 5114] set_robust_list(0x55558f316760, 24) = 0
[pid 5114] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5114] setpgid(0, 0) = 0
[pid 5114] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[ 59.308384][ T5113] overlay: filesystem on ./file0 not supported as upperdir
[pid 5114] write(3, "1000", 4) = 4
[pid 5114] close(3executing program
) = 0
[pid 5114] write(1, "executing program\n", 18) = 18
[pid 5114] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5114] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5114] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5114] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5114] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5114] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5114] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5114] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5114] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5114] chdir("./file0") = 0
[pid 5114] chdir("./bus") = 0
[pid 5114] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5114] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5114] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5114] exit_group(0) = ?
[pid 5114] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5114, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5115 attached
[pid 5115] set_robust_list(0x55558f316760, 24) = 0
[pid 5115] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5115] setpgid(0, 0) = 0
[pid 5115] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5115
[pid 5115] <... openat resumed>) = 3
[ 59.409671][ T5114] overlay: filesystem on ./file0 not supported as upperdir
[pid 5115] write(3, "1000", 4) = 4
[pid 5115] close(3) = 0
[pid 5115] write(1, "executing program\n", 18executing program
) = 18
[pid 5115] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5115] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5115] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5115] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5115] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5115] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5115] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5115] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5115] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5115] chdir("./file0") = 0
[pid 5115] chdir("./bus") = 0
[pid 5115] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5115] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5115] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5115] exit_group(0) = ?
[pid 5115] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5115, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5116 attached
[ 59.514821][ T5115] overlay: filesystem on ./file0 not supported as upperdir
[pid 5116] set_robust_list(0x55558f316760, 24
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5116
[pid 5116] <... set_robust_list resumed>) = 0
[pid 5116] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5116] setpgid(0, 0) = 0
[pid 5116] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5116] write(3, "1000", 4) = 4
[pid 5116] close(3) = 0
[pid 5116] write(1, "executing program\n", 18executing program
) = 18
[pid 5116] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5116] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5116] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5116] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5116] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5116] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5116] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5116] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5116] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5116] chdir("./file0") = 0
[pid 5116] chdir("./bus") = 0
[pid 5116] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5116] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5116] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5116] exit_group(0) = ?
[pid 5116] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5116, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5117
./strace-static-x86_64: Process 5117 attached
[pid 5117] set_robust_list(0x55558f316760, 24) = 0
[pid 5117] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5117] setpgid(0, 0) = 0
[pid 5117] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5117] write(3, "1000", 4) = 4
executing program
[pid 5117] close(3) = 0
[pid 5117] write(1, "executing program\n", 18) = 18
[pid 5117] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5117] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5117] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5117] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5117] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[ 59.610924][ T5116] overlay: filesystem on ./file0 not supported as upperdir
[pid 5117] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5117] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5117] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5117] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5117] chdir("./file0") = 0
[pid 5117] chdir("./bus") = 0
[pid 5117] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5117] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5117] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5117] exit_group(0) = ?
[pid 5117] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5117, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5118
./strace-static-x86_64: Process 5118 attached
[pid 5118] set_robust_list(0x55558f316760, 24) = 0
[pid 5118] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5118] setpgid(0, 0) = 0
[pid 5118] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5118] write(3, "1000", 4) = 4
[pid 5118] close(3) = 0
[ 59.669629][ T5117] overlay: filesystem on ./file0 not supported as upperdir
[pid 5118] write(1, "executing program\n", 18executing program
) = 18
[pid 5118] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5118] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5118] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5118] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5118] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5118] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5118] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5118] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5118] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5118] chdir("./file0") = 0
[pid 5118] chdir("./bus") = 0
[pid 5118] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5118] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5118] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5118] exit_group(0) = ?
[pid 5118] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5118, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5119
./strace-static-x86_64: Process 5119 attached
[pid 5119] set_robust_list(0x55558f316760, 24) = 0
[pid 5119] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5119] setpgid(0, 0) = 0
[pid 5119] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5119] write(3, "1000", 4) = 4
[pid 5119] close(3) = 0
[pid 5119] write(1, "executing program\n", 18executing program
) = 18
[ 59.752648][ T5118] overlay: filesystem on ./file0 not supported as upperdir
[pid 5119] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5119] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5119] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5119] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5119] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5119] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5119] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5119] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5119] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5119] chdir("./file0") = 0
[pid 5119] chdir("./bus") = 0
[pid 5119] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5119] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5119] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5119] exit_group(0) = ?
[pid 5119] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5119, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
[ 59.848476][ T5119] overlay: filesystem on ./file0 not supported as upperdir
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5120 attached
, child_tidptr=0x55558f316750) = 5120
[pid 5120] set_robust_list(0x55558f316760, 24) = 0
[pid 5120] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5120] setpgid(0, 0) = 0
[pid 5120] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5120] write(3, "1000", 4) = 4
[pid 5120] close(3) = 0
executing program
[pid 5120] write(1, "executing program\n", 18) = 18
[pid 5120] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5120] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5120] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5120] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5120] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5120] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5120] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5120] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5120] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5120] chdir("./file0") = 0
[pid 5120] chdir("./bus") = 0
[pid 5120] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5120] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5120] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5120] exit_group(0) = ?
[pid 5120] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5120, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[ 59.984285][ T5120] overlay: filesystem on ./file0 not supported as upperdir
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5121 attached
, child_tidptr=0x55558f316750) = 5121
[pid 5121] set_robust_list(0x55558f316760, 24) = 0
[pid 5121] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5121] setpgid(0, 0) = 0
[pid 5121] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5121] write(3, "1000", 4) = 4
[pid 5121] close(3) = 0
[pid 5121] write(1, "executing program\n", 18executing program
) = 18
[pid 5121] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5121] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5121] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5121] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5121] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5121] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5121] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5121] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5121] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5121] chdir("./file0") = 0
[pid 5121] chdir("./bus") = 0
[pid 5121] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5121] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5121] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5121] exit_group(0) = ?
[pid 5121] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5121, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
[ 60.123493][ T5121] overlay: filesystem on ./file0 not supported as upperdir
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5122 attached
, child_tidptr=0x55558f316750) = 5122
[pid 5122] set_robust_list(0x55558f316760, 24) = 0
[pid 5122] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5122] setpgid(0, 0) = 0
[pid 5122] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5122] write(3, "1000", 4) = 4
[pid 5122] close(3) = 0
[pid 5122] write(1, "executing program\n", 18executing program
) = 18
[pid 5122] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5122] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5122] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5122] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5122] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5122] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5122] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5122] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5122] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5122] chdir("./file0") = 0
[pid 5122] chdir("./bus") = 0
[pid 5122] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5122] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5122] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5122] exit_group(0) = ?
[pid 5122] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5122, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
[ 60.244486][ T5122] overlay: filesystem on ./file0 not supported as upperdir
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5123
./strace-static-x86_64: Process 5123 attached
[pid 5123] set_robust_list(0x55558f316760, 24) = 0
[pid 5123] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5123] setpgid(0, 0) = 0
[pid 5123] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5123] write(3, "1000", 4) = 4
[pid 5123] close(3) = 0
executing program
[pid 5123] write(1, "executing program\n", 18) = 18
[pid 5123] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5123] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5123] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5123] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5123] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5123] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5123] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5123] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5123] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5123] chdir("./file0") = 0
[pid 5123] chdir("./bus") = 0
[pid 5123] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5123] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5123] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5123] exit_group(0) = ?
[pid 5123] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5123, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
[ 60.357934][ T5123] overlay: filesystem on ./file0 not supported as upperdir
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5124
./strace-static-x86_64: Process 5124 attached
[pid 5124] set_robust_list(0x55558f316760, 24) = 0
[pid 5124] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5124] setpgid(0, 0) = 0
[pid 5124] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5124] write(3, "1000", 4) = 4
[pid 5124] close(3) = 0
executing program
[pid 5124] write(1, "executing program\n", 18) = 18
[pid 5124] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5124] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5124] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5124] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5124] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5124] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5124] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5124] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5124] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5124] chdir("./file0") = 0
[pid 5124] chdir("./bus") = 0
[pid 5124] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5124] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5124] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5124] exit_group(0) = ?
[pid 5124] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5124, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5125 attached
, child_tidptr=0x55558f316750) = 5125
[pid 5125] set_robust_list(0x55558f316760, 24) = 0
[pid 5125] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5125] setpgid(0, 0) = 0
[ 60.444498][ T5124] overlay: filesystem on ./file0 not supported as upperdir
[pid 5125] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5125] write(3, "1000", 4) = 4
[pid 5125] close(3) = 0
[pid 5125] write(1, "executing program\n", 18executing program
) = 18
[pid 5125] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5125] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5125] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5125] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5125] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5125] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5125] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5125] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5125] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5125] chdir("./file0") = 0
[pid 5125] chdir("./bus") = 0
[pid 5125] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5125] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[ 60.538036][ T5125] overlay: filesystem on ./file0 not supported as upperdir
[pid 5125] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5125] exit_group(0) = ?
[pid 5125] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5125, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5126 attached
, child_tidptr=0x55558f316750) = 5126
[pid 5126] set_robust_list(0x55558f316760, 24) = 0
[pid 5126] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5126] setpgid(0, 0) = 0
[pid 5126] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5126] write(3, "1000", 4) = 4
[pid 5126] close(3) = 0
executing program
[pid 5126] write(1, "executing program\n", 18) = 18
[pid 5126] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5126] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5126] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5126] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5126] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5126] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5126] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5126] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5126] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5126] chdir("./file0") = 0
[pid 5126] chdir("./bus") = 0
[pid 5126] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5126] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5126] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5126] exit_group(0) = ?
[pid 5126] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5126, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 60.681580][ T5126] overlay: filesystem on ./file0 not supported as upperdir
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDexecuting program
./strace-static-x86_64: Process 5127 attached
, child_tidptr=0x55558f316750) = 5127
[pid 5127] set_robust_list(0x55558f316760, 24) = 0
[pid 5127] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5127] setpgid(0, 0) = 0
[pid 5127] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5127] write(3, "1000", 4) = 4
[pid 5127] close(3) = 0
[pid 5127] write(1, "executing program\n", 18) = 18
[pid 5127] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5127] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5127] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5127] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5127] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5127] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5127] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5127] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5127] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5127] chdir("./file0") = 0
[pid 5127] chdir("./bus") = 0
[pid 5127] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5127] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5127] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5127] exit_group(0) = ?
[ 60.752318][ T5127] overlay: filesystem on ./file0 not supported as upperdir
[pid 5127] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5127, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5128
./strace-static-x86_64: Process 5128 attached
[pid 5128] set_robust_list(0x55558f316760, 24) = 0
[pid 5128] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5128] setpgid(0, 0) = 0
[pid 5128] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5128] write(3, "1000", 4) = 4
[pid 5128] close(3) = 0
executing program
[pid 5128] write(1, "executing program\n", 18) = 18
[pid 5128] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5128] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5128] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5128] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5128] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5128] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5128] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5128] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5128] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5128] chdir("./file0") = 0
[pid 5128] chdir("./bus") = 0
[pid 5128] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5128] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5128] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5128] exit_group(0) = ?
[pid 5128] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5128, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
[ 60.885156][ T5128] overlay: filesystem on ./file0 not supported as upperdir
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5129
./strace-static-x86_64: Process 5129 attached
[pid 5129] set_robust_list(0x55558f316760, 24) = 0
[pid 5129] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5129] setpgid(0, 0) = 0
[pid 5129] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5129] write(3, "1000", 4) = 4
[pid 5129] close(3) = 0
[pid 5129] write(1, "executing program\n", 18executing program
) = 18
[pid 5129] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5129] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5129] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5129] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5129] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5129] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5129] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5129] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5129] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5129] chdir("./file0") = 0
[pid 5129] chdir("./bus") = 0
[pid 5129] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5129] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5129] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5129] exit_group(0) = ?
[pid 5129] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5129, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[ 60.962539][ T5129] overlay: filesystem on ./file0 not supported as upperdir
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5130 attached
, child_tidptr=0x55558f316750) = 5130
[pid 5130] set_robust_list(0x55558f316760, 24) = 0
[pid 5130] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5130] setpgid(0, 0) = 0
[pid 5130] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5130] write(3, "1000", 4) = 4
[pid 5130] close(3) = 0
[pid 5130] write(1, "executing program\n", 18executing program
) = 18
[pid 5130] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5130] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5130] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5130] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5130] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5130] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5130] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5130] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5130] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5130] chdir("./file0") = 0
[pid 5130] chdir("./bus") = 0
[pid 5130] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5130] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5130] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5130] exit_group(0) = ?
[pid 5130] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5130, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5131
./strace-static-x86_64: Process 5131 attached
[pid 5131] set_robust_list(0x55558f316760, 24) = 0
[pid 5131] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5131] setpgid(0, 0) = 0
[pid 5131] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5131] write(3, "1000", 4) = 4
[pid 5131] close(3) = 0
[pid 5131] write(1, "executing program\n", 18executing program
) = 18
[pid 5131] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5131] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5131] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5131] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[ 61.060857][ T5130] overlay: filesystem on ./file0 not supported as upperdir
[pid 5131] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5131] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5131] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5131] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5131] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5131] chdir("./file0") = 0
[pid 5131] chdir("./bus") = 0
[pid 5131] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5131] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5131] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5131] exit_group(0) = ?
[pid 5131] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5131, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
[ 61.131996][ T5131] overlay: filesystem on ./file0 not supported as upperdir
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5132
./strace-static-x86_64: Process 5132 attached
[pid 5132] set_robust_list(0x55558f316760, 24) = 0
[pid 5132] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5132] setpgid(0, 0) = 0
[pid 5132] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5132] write(3, "1000", 4) = 4
[pid 5132] close(3) = 0
executing program
[pid 5132] write(1, "executing program\n", 18) = 18
[pid 5132] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5132] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5132] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5132] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5132] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5132] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5132] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5132] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5132] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5132] chdir("./file0") = 0
[pid 5132] chdir("./bus") = 0
[pid 5132] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5132] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[ 61.251108][ T5132] overlay: filesystem on ./file0 not supported as upperdir
[pid 5132] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5132] exit_group(0) = ?
[pid 5132] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5132, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5133 attached
[pid 5133] set_robust_list(0x55558f316760, 24) = 0
[pid 5133] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5133] setpgid(0, 0) = 0
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5133
[pid 5133] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5133] write(3, "1000", 4) = 4
[pid 5133] close(3) = 0
executing program
[pid 5133] write(1, "executing program\n", 18) = 18
[pid 5133] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5133] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5133] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5133] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5133] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5133] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5133] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5133] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5133] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5133] chdir("./file0") = 0
[pid 5133] chdir("./bus") = 0
[pid 5133] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5133] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5133] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5133] exit_group(0) = ?
[pid 5133] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5133, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
[ 61.345841][ T5133] overlay: filesystem on ./file0 not supported as upperdir
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5134
./strace-static-x86_64: Process 5134 attached
[pid 5134] set_robust_list(0x55558f316760, 24) = 0
[pid 5134] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5134] setpgid(0, 0) = 0
[pid 5134] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5134] write(3, "1000", 4) = 4
[pid 5134] close(3executing program
) = 0
[pid 5134] write(1, "executing program\n", 18) = 18
[pid 5134] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5134] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5134] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5134] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5134] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5134] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5134] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5134] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5134] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5134] chdir("./file0") = 0
[pid 5134] chdir("./bus") = 0
[pid 5134] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5134] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5134] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5134] exit_group(0) = ?
[pid 5134] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5134, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[ 61.466406][ T5134] overlay: filesystem on ./file0 not supported as upperdir
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5135 attached
, child_tidptr=0x55558f316750) = 5135
[pid 5135] set_robust_list(0x55558f316760, 24) = 0
[pid 5135] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5135] setpgid(0, 0) = 0
[pid 5135] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5135] write(3, "1000", 4) = 4
[pid 5135] close(3) = 0
[pid 5135] write(1, "executing program\n", 18executing program
) = 18
[pid 5135] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5135] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5135] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5135] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5135] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5135] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5135] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5135] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5135] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5135] chdir("./file0") = 0
[pid 5135] chdir("./bus") = 0
[pid 5135] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5135] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5135] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5135] exit_group(0) = ?
[pid 5135] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5135, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5136 attached
[pid 5136] set_robust_list(0x55558f316760, 24
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5136
[pid 5136] <... set_robust_list resumed>) = 0
[pid 5136] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5136] setpgid(0, 0) = 0
[pid 5136] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5136] write(3, "1000", 4) = 4
[pid 5136] close(3executing program
) = 0
[pid 5136] write(1, "executing program\n", 18) = 18
[pid 5136] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5136] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5136] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5136] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5136] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5136] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5136] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5136] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5136] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5136] chdir("./file0") = 0
[pid 5136] chdir("./bus") = 0
[pid 5136] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5136] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5136] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5136] exit_group(0) = ?
[pid 5136] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5136, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5137 attached
, child_tidptr=0x55558f316750) = 5137
[pid 5137] set_robust_list(0x55558f316760, 24) = 0
[ 61.560369][ T5135] overlay: filesystem on ./file0 not supported as upperdir
[ 61.594887][ T5136] overlay: filesystem on ./file0 not supported as upperdir
[pid 5137] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5137] setpgid(0, 0) = 0
[pid 5137] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5137] write(3, "1000", 4) = 4
[pid 5137] close(3) = 0
executing program
[pid 5137] write(1, "executing program\n", 18) = 18
[pid 5137] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5137] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5137] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5137] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5137] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5137] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5137] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5137] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5137] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5137] chdir("./file0") = 0
[pid 5137] chdir("./bus") = 0
[pid 5137] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5137] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5137] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5137] exit_group(0) = ?
[ 61.701305][ T5137] overlay: filesystem on ./file0 not supported as upperdir
[pid 5137] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5137, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5138 attached
, child_tidptr=0x55558f316750) = 5138
[pid 5138] set_robust_list(0x55558f316760, 24) = 0
[pid 5138] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5138] setpgid(0, 0) = 0
[pid 5138] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5138] write(3, "1000", 4) = 4
[pid 5138] close(3) = 0
executing program
[pid 5138] write(1, "executing program\n", 18) = 18
[pid 5138] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5138] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5138] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5138] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5138] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5138] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5138] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5138] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5138] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5138] chdir("./file0") = 0
[pid 5138] chdir("./bus") = 0
[pid 5138] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5138] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5138] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5138] exit_group(0) = ?
[pid 5138] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5138, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5139 attached
, child_tidptr=0x55558f316750) = 5139
[ 61.839292][ T5138] overlay: filesystem on ./file0 not supported as upperdir
[pid 5139] set_robust_list(0x55558f316760, 24) = 0
[pid 5139] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5139] setpgid(0, 0) = 0
[pid 5139] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5139] write(3, "1000", 4) = 4
[pid 5139] close(3) = 0
executing program
[pid 5139] write(1, "executing program\n", 18) = 18
[pid 5139] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5139] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5139] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5139] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5139] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5139] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5139] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5139] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5139] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5139] chdir("./file0") = 0
[pid 5139] chdir("./bus") = 0
[pid 5139] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5139] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5139] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5139] exit_group(0) = ?
[pid 5139] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5139, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
[ 61.972496][ T5139] overlay: filesystem on ./file0 not supported as upperdir
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5140 attached
, child_tidptr=0x55558f316750) = 5140
[pid 5140] set_robust_list(0x55558f316760, 24) = 0
[pid 5140] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5140] setpgid(0, 0) = 0
[pid 5140] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5140] write(3, "1000", 4) = 4
[pid 5140] close(3) = 0
[pid 5140] write(1, "executing program\n", 18executing program
) = 18
[pid 5140] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5140] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5140] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5140] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5140] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5140] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5140] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5140] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5140] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5140] chdir("./file0") = 0
[pid 5140] chdir("./bus") = 0
[pid 5140] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5140] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5140] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[ 62.098114][ T5140] overlay: filesystem on ./file0 not supported as upperdir
[pid 5140] exit_group(0) = ?
[pid 5140] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5140, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5141 attached
[pid 5141] set_robust_list(0x55558f316760, 24) = 0
[pid 5141] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5141] setpgid(0, 0
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5141
[pid 5141] <... setpgid resumed>) = 0
[pid 5141] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5141] write(3, "1000", 4) = 4
[pid 5141] close(3) = 0
executing program
[pid 5141] write(1, "executing program\n", 18) = 18
[pid 5141] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5141] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5141] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5141] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5141] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5141] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5141] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5141] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5141] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5141] chdir("./file0") = 0
[pid 5141] chdir("./bus") = 0
[pid 5141] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5141] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5141] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5141] exit_group(0) = ?
[pid 5141] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5141, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5142 attached
, child_tidptr=0x55558f316750) = 5142
[pid 5142] set_robust_list(0x55558f316760, 24) = 0
[pid 5142] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5142] setpgid(0, 0) = 0
[ 62.185543][ T5141] overlay: filesystem on ./file0 not supported as upperdir
[pid 5142] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXECexecuting program
) = 3
[pid 5142] write(3, "1000", 4) = 4
[pid 5142] close(3) = 0
[pid 5142] write(1, "executing program\n", 18) = 18
[pid 5142] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5142] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5142] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5142] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5142] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5142] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5142] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5142] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5142] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5142] chdir("./file0") = 0
[pid 5142] chdir("./bus") = 0
[pid 5142] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5142] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5142] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5142] exit_group(0) = ?
[pid 5142] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5142, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5143
./strace-static-x86_64: Process 5143 attached
[ 62.247750][ T5142] overlay: filesystem on ./file0 not supported as upperdir
[pid 5143] set_robust_list(0x55558f316760, 24) = 0
[pid 5143] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5143] setpgid(0, 0) = 0
[pid 5143] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5143] write(3, "1000", 4) = 4
[pid 5143] close(3) = 0
executing program
[pid 5143] write(1, "executing program\n", 18) = 18
[pid 5143] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5143] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5143] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5143] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5143] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5143] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5143] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5143] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5143] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5143] chdir("./file0") = 0
[pid 5143] chdir("./bus") = 0
[pid 5143] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5143] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5143] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5143] exit_group(0) = ?
[pid 5143] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5143, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
[ 62.380968][ T5143] overlay: filesystem on ./file0 not supported as upperdir
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5144
./strace-static-x86_64: Process 5144 attached
[pid 5144] set_robust_list(0x55558f316760, 24) = 0
[pid 5144] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5144] setpgid(0, 0) = 0
[pid 5144] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5144] write(3, "1000", 4) = 4
[pid 5144] close(3) = 0
[pid 5144] write(1, "executing program\n", 18executing program
) = 18
[pid 5144] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5144] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5144] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5144] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5144] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5144] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5144] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5144] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5144] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5144] chdir("./file0") = 0
[pid 5144] chdir("./bus") = 0
[pid 5144] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5144] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5144] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5144] exit_group(0) = ?
[ 62.486144][ T5144] overlay: filesystem on ./file0 not supported as upperdir
[pid 5144] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5144, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5145 attached
[pid 5145] set_robust_list(0x55558f316760, 24
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5145
[pid 5145] <... set_robust_list resumed>) = 0
[pid 5145] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5145] setpgid(0, 0) = 0
[pid 5145] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5145] write(3, "1000", 4) = 4
[pid 5145] close(3) = 0
executing program
[pid 5145] write(1, "executing program\n", 18) = 18
[pid 5145] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5145] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5145] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5145] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5145] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5145] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5145] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5145] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5145] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5145] chdir("./file0") = 0
[pid 5145] chdir("./bus") = 0
[pid 5145] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5145] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5145] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5145] exit_group(0) = ?
[pid 5145] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5145, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
[ 62.603754][ T5145] overlay: filesystem on ./file0 not supported as upperdir
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5146 attached
, child_tidptr=0x55558f316750) = 5146
[pid 5146] set_robust_list(0x55558f316760, 24) = 0
[pid 5146] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5146] setpgid(0, 0) = 0
[pid 5146] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5146] write(3, "1000", 4) = 4
[pid 5146] close(3executing program
) = 0
[pid 5146] write(1, "executing program\n", 18) = 18
[pid 5146] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5146] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5146] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5146] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5146] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5146] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5146] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5146] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5146] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5146] chdir("./file0") = 0
[pid 5146] chdir("./bus") = 0
[pid 5146] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5146] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5146] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5146] exit_group(0) = ?
[pid 5146] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5146, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5147 attached
, child_tidptr=0x55558f316750) = 5147
[ 62.697800][ T5146] overlay: filesystem on ./file0 not supported as upperdir
[pid 5147] set_robust_list(0x55558f316760, 24) = 0
[pid 5147] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5147] setpgid(0, 0) = 0
[pid 5147] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5147] write(3, "1000", 4) = 4
[pid 5147] close(3) = 0
[pid 5147] write(1, "executing program\n", 18executing program
) = 18
[pid 5147] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5147] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5147] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5147] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5147] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5147] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5147] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5147] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5147] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5147] chdir("./file0") = 0
[pid 5147] chdir("./bus") = 0
[pid 5147] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5147] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5147] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5147] exit_group(0) = ?
[pid 5147] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5147, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
[ 62.799713][ T5147] overlay: filesystem on ./file0 not supported as upperdir
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5148 attached
, child_tidptr=0x55558f316750) = 5148
[pid 5148] set_robust_list(0x55558f316760, 24) = 0
[pid 5148] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5148] setpgid(0, 0) = 0
[pid 5148] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5148] write(3, "1000", 4) = 4
[pid 5148] close(3) = 0
executing program
[pid 5148] write(1, "executing program\n", 18) = 18
[pid 5148] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5148] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5148] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5148] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5148] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5148] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5148] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5148] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5148] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5148] chdir("./file0") = 0
[pid 5148] chdir("./bus") = 0
[pid 5148] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5148] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5148] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5148] exit_group(0) = ?
[pid 5148] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5148, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
[ 62.945478][ T5148] overlay: filesystem on ./file0 not supported as upperdir
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5149
./strace-static-x86_64: Process 5149 attached
[pid 5149] set_robust_list(0x55558f316760, 24) = 0
[pid 5149] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5149] setpgid(0, 0) = 0
[pid 5149] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5149] write(3, "1000", 4) = 4
[pid 5149] close(3) = 0
executing program
[pid 5149] write(1, "executing program\n", 18) = 18
[pid 5149] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5149] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5149] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5149] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5149] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5149] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5149] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5149] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5149] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5149] chdir("./file0") = 0
[pid 5149] chdir("./bus") = 0
[pid 5149] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[ 63.070354][ T5149] overlay: filesystem on ./file0 not supported as upperdir
[pid 5149] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5149] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5149] exit_group(0) = ?
[pid 5149] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5149, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5150
./strace-static-x86_64: Process 5150 attached
[pid 5150] set_robust_list(0x55558f316760, 24) = 0
[pid 5150] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5150] setpgid(0, 0) = 0
[pid 5150] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5150] write(3, "1000", 4) = 4
[pid 5150] close(3) = 0
executing program
[pid 5150] write(1, "executing program\n", 18) = 18
[pid 5150] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5150] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5150] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5150] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5150] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5150] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5150] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5150] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5150] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5150] chdir("./file0") = 0
[pid 5150] chdir("./bus") = 0
[pid 5150] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[ 63.172066][ T5150] overlay: filesystem on ./file0 not supported as upperdir
[pid 5150] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5150] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5150] exit_group(0) = ?
[pid 5150] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5150, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5151
./strace-static-x86_64: Process 5151 attached
[pid 5151] set_robust_list(0x55558f316760, 24) = 0
[pid 5151] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5151] setpgid(0, 0) = 0
[pid 5151] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5151] write(3, "1000", 4) = 4
[pid 5151] close(3executing program
) = 0
[pid 5151] write(1, "executing program\n", 18) = 18
[pid 5151] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5151] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5151] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5151] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5151] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5151] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5151] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5151] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5151] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5151] chdir("./file0") = 0
[pid 5151] chdir("./bus") = 0
[pid 5151] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5151] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5151] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5151] exit_group(0) = ?
[pid 5151] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5151, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5152
./strace-static-x86_64: Process 5152 attached
[pid 5152] set_robust_list(0x55558f316760, 24) = 0
[pid 5152] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5152] setpgid(0, 0) = 0
[pid 5152] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5152] write(3, "1000", 4) = 4
[pid 5152] close(3) = 0
executing program
[pid 5152] write(1, "executing program\n", 18) = 18
[ 63.308825][ T5151] overlay: filesystem on ./file0 not supported as upperdir
[pid 5152] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5152] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5152] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5152] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5152] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5152] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5152] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5152] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5152] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5152] chdir("./file0") = 0
[pid 5152] chdir("./bus") = 0
[pid 5152] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5152] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5152] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5152] exit_group(0) = ?
[pid 5152] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5152, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5153 attached
[pid 5153] set_robust_list(0x55558f316760, 24) = 0
[pid 5153] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5153] setpgid(0, 0) = 0
[pid 5153] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5153
[pid 5153] <... openat resumed>) = 3
[ 63.395472][ T5152] overlay: filesystem on ./file0 not supported as upperdir
[pid 5153] write(3, "1000", 4) = 4
[pid 5153] close(3) = 0
[pid 5153] write(1, "executing program\n", 18executing program
) = 18
[pid 5153] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5153] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5153] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5153] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5153] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5153] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5153] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5153] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5153] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5153] chdir("./file0") = 0
[pid 5153] chdir("./bus") = 0
[pid 5153] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5153] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5153] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5153] exit_group(0) = ?
[pid 5153] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5153, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[ 63.500521][ T5153] overlay: filesystem on ./file0 not supported as upperdir
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5154
./strace-static-x86_64: Process 5154 attached
[pid 5154] set_robust_list(0x55558f316760, 24) = 0
[pid 5154] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5154] setpgid(0, 0) = 0
[pid 5154] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5154] write(3, "1000", 4) = 4
[pid 5154] close(3executing program
) = 0
[pid 5154] write(1, "executing program\n", 18) = 18
[pid 5154] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5154] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5154] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5154] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5154] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5154] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5154] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5154] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5154] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5154] chdir("./file0") = 0
[pid 5154] chdir("./bus") = 0
[pid 5154] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5154] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5154] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5154] exit_group(0) = ?
[ 63.589731][ T5154] overlay: filesystem on ./file0 not supported as upperdir
[pid 5154] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5154, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5155
./strace-static-x86_64: Process 5155 attached
[pid 5155] set_robust_list(0x55558f316760, 24) = 0
[pid 5155] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5155] setpgid(0, 0) = 0
[pid 5155] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5155] write(3, "1000", 4) = 4
[pid 5155] close(3) = 0
[pid 5155] write(1, "executing program\n", 18executing program
) = 18
[pid 5155] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5155] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5155] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5155] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5155] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5155] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5155] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5155] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5155] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5155] chdir("./file0") = 0
[pid 5155] chdir("./bus") = 0
[pid 5155] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5155] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5155] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5155] exit_group(0) = ?
[pid 5155] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5155, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5156 attached
[pid 5156] set_robust_list(0x55558f316760, 24
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5156
[pid 5156] <... set_robust_list resumed>) = 0
[pid 5156] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5156] setpgid(0, 0) = 0
[pid 5156] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5156] write(3, "1000", 4) = 4
[pid 5156] close(3) = 0
executing program
[ 63.674347][ T5155] overlay: filesystem on ./file0 not supported as upperdir
[pid 5156] write(1, "executing program\n", 18) = 18
[pid 5156] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5156] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5156] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5156] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5156] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5156] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5156] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5156] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5156] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5156] chdir("./file0") = 0
[pid 5156] chdir("./bus") = 0
[pid 5156] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5156] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5156] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5156] exit_group(0) = ?
[pid 5156] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5156, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5157 attached
, child_tidptr=0x55558f316750) = 5157
[pid 5157] set_robust_list(0x55558f316760, 24) = 0
[pid 5157] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5157] setpgid(0, 0) = 0
[pid 5157] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5157] write(3, "1000", 4) = 4
[pid 5157] close(3) = 0
[pid 5157] write(1, "executing program\n", 18executing program
) = 18
[pid 5157] chdir(NULL) = -1 EFAULT (Bad address)
[ 63.759682][ T5156] overlay: filesystem on ./file0 not supported as upperdir
[pid 5157] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5157] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5157] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5157] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5157] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5157] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5157] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5157] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5157] chdir("./file0") = 0
[pid 5157] chdir("./bus") = 0
[pid 5157] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5157] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5157] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5157] exit_group(0) = ?
[pid 5157] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5157, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
[ 63.839598][ T5157] overlay: filesystem on ./file0 not supported as upperdir
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5158
./strace-static-x86_64: Process 5158 attached
[pid 5158] set_robust_list(0x55558f316760, 24) = 0
[pid 5158] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5158] setpgid(0, 0) = 0
[pid 5158] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5158] write(3, "1000", 4) = 4
[pid 5158] close(3) = 0
[pid 5158] write(1, "executing program\n", 18executing program
) = 18
[pid 5158] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5158] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5158] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5158] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5158] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5158] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5158] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5158] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5158] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5158] chdir("./file0") = 0
[pid 5158] chdir("./bus") = 0
[pid 5158] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5158] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5158] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5158] exit_group(0) = ?
[pid 5158] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5158, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5159
./strace-static-x86_64: Process 5159 attached
[ 63.940426][ T5158] overlay: filesystem on ./file0 not supported as upperdir
[pid 5159] set_robust_list(0x55558f316760, 24) = 0
[pid 5159] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5159] setpgid(0, 0) = 0
[pid 5159] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5159] write(3, "1000", 4) = 4
[pid 5159] close(3) = 0
executing program
[pid 5159] write(1, "executing program\n", 18) = 18
[pid 5159] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5159] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5159] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5159] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5159] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5159] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5159] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5159] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5159] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5159] chdir("./file0") = 0
[pid 5159] chdir("./bus") = 0
[pid 5159] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5159] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5159] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5159] exit_group(0) = ?
[pid 5159] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5159, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5160 attached
[ 64.017232][ T5159] overlay: filesystem on ./file0 not supported as upperdir
[pid 5160] set_robust_list(0x55558f316760, 24
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5160
[pid 5160] <... set_robust_list resumed>) = 0
[pid 5160] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5160] setpgid(0, 0) = 0
[pid 5160] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5160] write(3, "1000", 4) = 4
[pid 5160] close(3) = 0
[pid 5160] write(1, "executing program\n", 18executing program
) = 18
[pid 5160] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5160] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5160] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5160] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5160] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5160] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5160] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5160] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5160] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5160] chdir("./file0") = 0
[pid 5160] chdir("./bus") = 0
[pid 5160] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5160] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5160] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5160] exit_group(0) = ?
[pid 5160] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5160, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5161
./strace-static-x86_64: Process 5161 attached
[pid 5161] set_robust_list(0x55558f316760, 24) = 0
[pid 5161] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5161] setpgid(0, 0) = 0
[pid 5161] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5161] write(3, "1000", 4) = 4
[ 64.132940][ T5160] overlay: filesystem on ./file0 not supported as upperdir
[pid 5161] close(3) = 0
executing program
[pid 5161] write(1, "executing program\n", 18) = 18
[pid 5161] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5161] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5161] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5161] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5161] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5161] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5161] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5161] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5161] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5161] chdir("./file0") = 0
[pid 5161] chdir("./bus") = 0
[pid 5161] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5161] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5161] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5161] exit_group(0) = ?
[pid 5161] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5161, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5162 attached
[pid 5162] set_robust_list(0x55558f316760, 24
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5162
[pid 5162] <... set_robust_list resumed>) = 0
[pid 5162] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5162] setpgid(0, 0) = 0
[pid 5162] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5162] write(3, "1000", 4) = 4
[pid 5162] close(3) = 0
[ 64.197256][ T5161] overlay: filesystem on ./file0 not supported as upperdir
[pid 5162] write(1, "executing program\n", 18executing program
) = 18
[pid 5162] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5162] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5162] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5162] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5162] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5162] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5162] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5162] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5162] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5162] chdir("./file0") = 0
[pid 5162] chdir("./bus") = 0
[pid 5162] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5162] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5162] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5162] exit_group(0) = ?
[pid 5162] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5162, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5163 attached
[pid 5163] set_robust_list(0x55558f316760, 24
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5163
[pid 5163] <... set_robust_list resumed>) = 0
[pid 5163] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[ 64.308417][ T5162] overlay: filesystem on ./file0 not supported as upperdir
[pid 5163] setpgid(0, 0) = 0
[pid 5163] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5163] write(3, "1000", 4) = 4
[pid 5163] close(3) = 0
executing program
[pid 5163] write(1, "executing program\n", 18) = 18
[pid 5163] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5163] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5163] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5163] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5163] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5163] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5163] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5163] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5163] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5163] chdir("./file0") = 0
[pid 5163] chdir("./bus") = 0
[pid 5163] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5163] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5163] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5163] exit_group(0) = ?
[pid 5163] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5163, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
[ 64.392639][ T5163] overlay: filesystem on ./file0 not supported as upperdir
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5164
./strace-static-x86_64: Process 5164 attached
[pid 5164] set_robust_list(0x55558f316760, 24) = 0
[pid 5164] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5164] setpgid(0, 0) = 0
[pid 5164] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5164] write(3, "1000", 4) = 4
[pid 5164] close(3) = 0
executing program
[pid 5164] write(1, "executing program\n", 18) = 18
[pid 5164] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5164] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5164] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5164] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5164] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5164] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5164] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5164] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5164] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5164] chdir("./file0") = 0
[pid 5164] chdir("./bus") = 0
[pid 5164] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5164] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5164] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5164] exit_group(0) = ?
[ 64.510740][ T5164] overlay: filesystem on ./file0 not supported as upperdir
[pid 5164] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5164, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5165 attached
, child_tidptr=0x55558f316750) = 5165
[pid 5165] set_robust_list(0x55558f316760, 24) = 0
[pid 5165] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5165] setpgid(0, 0) = 0
[pid 5165] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5165] write(3, "1000", 4) = 4
[pid 5165] close(3) = 0
executing program
[pid 5165] write(1, "executing program\n", 18) = 18
[pid 5165] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5165] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5165] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5165] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5165] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5165] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5165] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5165] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5165] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5165] chdir("./file0") = 0
[pid 5165] chdir("./bus") = 0
[pid 5165] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5165] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5165] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5165] exit_group(0) = ?
[pid 5165] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5165, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
[ 64.650356][ T5165] overlay: filesystem on ./file0 not supported as upperdir
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55558f316750) = 5166
./strace-static-x86_64: Process 5166 attached
[pid 5166] set_robust_list(0x55558f316760, 24) = 0
[pid 5166] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5166] setpgid(0, 0) = 0
[pid 5166] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5166] write(3, "1000", 4) = 4
[pid 5166] close(3) = 0
executing program
[pid 5166] write(1, "executing program\n", 18) = 18
[pid 5166] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5166] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5166] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5166] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5166] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5166] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5166] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5166] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5166] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5166] chdir("./file0") = 0
[pid 5166] chdir("./bus") = 0
[pid 5166] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5166] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5166] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5166] exit_group(0) = ?
[pid 5166] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5166, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5167 attached
[pid 5167] set_robust_list(0x55558f316760, 24) = 0
[pid 5167] prctl(PR_SET_PDEATHSIG, SIGKILL
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5167
[pid 5167] <... prctl resumed>) = 0
[pid 5167] setpgid(0, 0) = 0
[ 64.761747][ T5166] overlay: filesystem on ./file0 not supported as upperdir
[pid 5167] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5167] write(3, "1000", 4) = 4
[pid 5167] close(3executing program
) = 0
[pid 5167] write(1, "executing program\n", 18) = 18
[pid 5167] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5167] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5167] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5167] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5167] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5167] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5167] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5167] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5167] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5167] chdir("./file0") = 0
[pid 5167] chdir("./bus") = 0
[pid 5167] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5167] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5167] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5167] exit_group(0) = ?
[pid 5167] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5167, si_uid=0, si_status=0, si_utime=0, si_stime=1 /* 0.01 s */} ---
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5168 attached
[ 64.861917][ T5167] overlay: filesystem on ./file0 not supported as upperdir
, child_tidptr=0x55558f316750) = 5168
[pid 5168] set_robust_list(0x55558f316760, 24) = 0
[pid 5168] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5168] setpgid(0, 0) = 0
[pid 5168] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5168] write(3, "1000", 4) = 4
[pid 5168] close(3) = 0
[pid 5168] write(1, "executing program\n", 18executing program
) = 18
[pid 5168] chdir(NULL) = -1 EFAULT (Bad address)
[pid 5168] mkdirat(AT_FDCWD, "./file0", 000) = -1 EEXIST (File exists)
[pid 5168] mkdir("./bus", 000) = -1 EEXIST (File exists)
[pid 5168] mkdir("./file2", 0777) = -1 EEXIST (File exists)
[pid 5168] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid 5168] mount(NULL, "./file0", "overlay", MS_NODEV|MS_SYNCHRONOUS|MS_STRICTATIME, "workdir=./file0,lowerdir=.,upperdir=./file2,,") = -1 EINVAL (Invalid argument)
[pid 5168] mkdir("./file0", 0777) = -1 EEXIST (File exists)
[pid 5168] mount(NULL, "./file0", 0x20000140, MS_PRIVATE, 0x7ffd40dfe500) = 0
[pid 5168] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5168] chdir("./file0") = 0
[pid 5168] chdir("./bus") = 0
[pid 5168] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid 5168] getdents64(-1, NULL, 0) = -1 EBADF (Bad file descriptor)
[pid 5168] open(".", O_RDWR|O_SYNC|O_CLOEXEC|O_TMPFILE, 02417) = 4
[pid 5168] exit_group(0) = ?
[pid 5168] +++ exited with 0 +++
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5168, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
restart_syscall(<... resuming interrupted clone ...>) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address)
close(3) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5169 attached
[pid 5169] set_robust_list(0x55558f316760, 24) = 0
[pid 5169] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5169] setpgid(0, 0) = 0
[pid 5169] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC
[pid 5077] <... clone resumed>, child_tidptr=0x55558f316750) = 5169
[pid 5169] <... openat resumed>) = 3
[pid 5169] write(3, "1000", 4) = 4
[pid 5169] close(3) = 0
executing program
[pid 5169] write(1, "executing program\n", 18) = 18
[ 64.945326][ T5168] overlay: filesystem on ./file0 not supported as upperdir
[pid 5169] chdir(NULL) = -1 EFAULT (Bad address)