./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2515455876

<...>
forked to background, child pid 3182
no interfaces have a carrier
[   21.830875][ T3183] 8021q: adding VLAN 0 to HW filter on device bond0
[   21.842986][ T3183] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.10.29' (ECDSA) to the list of known hosts.
execve("./syz-executor2515455876", ["./syz-executor2515455876"], 0x7ffce05cc340 /* 10 vars */) = 0
brk(NULL)                               = 0x5555571ae000
brk(0x5555571aed00)                     = 0x5555571aed00
arch_prctl(ARCH_SET_FS, 0x5555571ae3c0) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor2515455876", 4096) = 28
brk(0x5555571cfd00)                     = 0x5555571cfd00
brk(0x5555571d0000)                     = 0x5555571d0000
mprotect(0x7f21589ba000, 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=0x7f215890b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f215890bb90}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7f215890b0a0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f215890bb90}, NULL, 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3604 attached
, child_tidptr=0x5555571ae690) = 3604
[pid  3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 3605 attached
) = 3
[pid  3603] <... clone resumed>, child_tidptr=0x5555571ae690) = 3605
[pid  3604] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3604] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3604] close(3)                    = 0
[pid  3603] <... clone resumed>, child_tidptr=0x5555571ae690) = 3606
[pid  3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3607
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3608
[pid  3603] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3610
[pid  3604] <... clone resumed>, child_tidptr=0x5555571ae690) = 3609
./strace-static-x86_64: Process 3610 attached
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3611
./strace-static-x86_64: Process 3611 attached
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3611] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3605] <... openat resumed>)       = 3
[pid  3611] setpgid(0, 0)               = 0
[pid  3611] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3605] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3606 attached
)       = -1 ENXIO (No such device or address)
./strace-static-x86_64: Process 3607 attached
[pid  3611] <... openat resumed>)       = 3
[pid  3605] close(3./strace-static-x86_64: Process 3608 attached
)                    = 0
[pid  3611] write(3, "1000", 4)         = 4
[pid  3611] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3611] mkdir("./file0", 0777 <unfinished ...>
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3605] <... clone resumed>, child_tidptr=0x5555571ae690) = 3612
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3607] <... openat resumed>)       = 3
[pid  3608] <... openat resumed>)       = 3
./strace-static-x86_64: Process 3609 attached
[pid  3606] <... openat resumed>)       = 3
[pid  3607] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3609] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3607] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3606] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3609] <... prctl resumed>)        = 0
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3607] close(3 <unfinished ...>
[pid  3606] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3609] setpgid(0, 0 <unfinished ...>
[pid  3608] close(3 <unfinished ...>
[pid  3607] <... close resumed>)        = 0
[pid  3606] close(3 <unfinished ...>
[pid  3611] <... mkdir resumed>)        = 0
[pid  3609] <... setpgid resumed>)      = 0
[pid  3608] <... close resumed>)        = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3606] <... close resumed>)        = 0
[pid  3611] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3611] pipe2([3, 4], 0)            = 0
./strace-static-x86_64: Process 3612 attached
[pid  3611] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3612] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3609] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3612] setpgid(0, 0)               = 0
[pid  3609] <... openat resumed>)       = 3
[pid  3612] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3607] <... clone resumed>, child_tidptr=0x5555571ae690) = 3614
[pid  3612] <... openat resumed>)       = 3
[pid  3612] write(3, "1000", 4 <unfinished ...>
[pid  3609] write(3, "1000", 4 <unfinished ...>
[pid  3612] <... write resumed>)        = 4
[pid  3608] <... clone resumed>, child_tidptr=0x5555571ae690) = 3615
./strace-static-x86_64: Process 3614 attached
[pid  3612] close(3 <unfinished ...>
[pid  3614] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3612] <... close resumed>)        = 0
./strace-static-x86_64: Process 3615 attached
[pid  3614] <... prctl resumed>)        = 0
[pid  3612] mkdir("./file0", 0777 <unfinished ...>
[pid  3609] <... write resumed>)        = 4
[pid  3606] <... clone resumed>, child_tidptr=0x5555571ae690) = 3616
./strace-static-x86_64: Process 3616 attached
[pid  3614] setpgid(0, 0 <unfinished ...>
[pid  3612] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3616] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3615] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3614] <... setpgid resumed>)      = 0
[pid  3612] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3609] close(3 <unfinished ...>
[pid  3616] <... prctl resumed>)        = 0
[pid  3615] <... prctl resumed>)        = 0
[pid  3614] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3612] pipe2( <unfinished ...>
[pid  3609] <... close resumed>)        = 0
[pid  3616] setpgid(0, 0 <unfinished ...>
[pid  3615] setpgid(0, 0 <unfinished ...>
[pid  3614] <... openat resumed>)       = 3
[pid  3612] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3609] mkdir("./file0", 0777 <unfinished ...>
[pid  3616] <... setpgid resumed>)      = 0
[pid  3615] <... setpgid resumed>)      = 0
[pid  3614] write(3, "1000", 4 <unfinished ...>
[pid  3612] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3609] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3616] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3615] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3614] <... write resumed>)        = 4
[pid  3609] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3616] <... openat resumed>)       = 3
[pid  3615] <... openat resumed>)       = 3
[pid  3614] close(3 <unfinished ...>
[pid  3609] pipe2( <unfinished ...>
[pid  3616] write(3, "1000", 4 <unfinished ...>
[pid  3615] write(3, "1000", 4 <unfinished ...>
[pid  3614] <... close resumed>)        = 0
[pid  3609] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3616] <... write resumed>)        = 4
[pid  3615] <... write resumed>)        = 4
[pid  3614] mkdir("./file0", 0777 <unfinished ...>
[pid  3609] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3616] close(3 <unfinished ...>
[pid  3615] close(3 <unfinished ...>
[pid  3614] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3616] <... close resumed>)        = 0
[pid  3615] <... close resumed>)        = 0
[pid  3614] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3616] mkdir("./file0", 0777 <unfinished ...>
[pid  3615] mkdir("./file0", 0777 <unfinished ...>
[pid  3614] pipe2( <unfinished ...>
[pid  3616] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3615] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3614] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3616] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3615] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3614] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3616] pipe2( <unfinished ...>
[pid  3615] pipe2( <unfinished ...>
[pid  3616] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3615] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3616] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3615] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3611] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3611] exit_group(0)               = ?
[pid  3611] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3611, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3619
./strace-static-x86_64: Process 3619 attached
[pid  3619] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3619] setpgid(0, 0)               = 0
[pid  3619] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3619] write(3, "1000", 4)         = 4
[pid  3619] close(3)                    = 0
[pid  3619] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3619] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3619] pipe2([3, 4], 0)            = 0
[pid  3619] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3609] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3609] exit_group(0)               = ?
[pid  3609] +++ exited with 0 +++
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3609, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3604] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3604] close(3)                    = 0
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3620
./strace-static-x86_64: Process 3620 attached
[pid  3620] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3620] setpgid(0, 0)               = 0
[pid  3620] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3620] write(3, "1000", 4)         = 4
[pid  3620] close(3)                    = 0
[pid  3620] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3620] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3620] pipe2([3, 4], 0)            = 0
[pid  3620] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3612] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3612] exit_group(0)               = ?
[pid  3612] +++ exited with 0 +++
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3612, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3621
./strace-static-x86_64: Process 3621 attached
[pid  3615] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3615] exit_group(0)               = ?
[pid  3615] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3615, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3608] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3 <unfinished ...>
[pid  3621] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3608] <... close resumed>)        = 0
[pid  3621] <... prctl resumed>)        = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3621] setpgid(0, 0 <unfinished ...>
[pid  3616] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3621] <... setpgid resumed>)      = 0
[pid  3621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3616] exit_group(0 <unfinished ...>
[pid  3621] <... openat resumed>)       = 3
[pid  3621] write(3, "1000", 4 <unfinished ...>
[pid  3616] <... exit_group resumed>)   = ?
[pid  3621] <... write resumed>)        = 4
[pid  3616] +++ exited with 0 +++
[pid  3621] close(3)                    = 0
[pid  3621] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3621] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3621] pipe2([3, 4], 0)            = 0
[pid  3621] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3616, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3608] <... clone resumed>, child_tidptr=0x5555571ae690) = 3622
./strace-static-x86_64: Process 3622 attached
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3622] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3622] setpgid(0, 0)               = 0
[pid  3606] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3606] close(3 <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3606] <... close resumed>)        = 0
[pid  3622] <... openat resumed>)       = 3
[pid  3622] write(3, "1000", 4)         = 4
[pid  3622] close(3)                    = 0
[pid  3622] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3622] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3622] pipe2([3, 4], 0)            = 0
[pid  3622] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3623
./strace-static-x86_64: Process 3623 attached
[pid  3623] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3623] setpgid(0, 0)               = 0
[pid  3623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3623] write(3, "1000", 4)         = 4
[pid  3623] close(3)                    = 0
[pid  3623] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3623] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3623] pipe2([3, 4], 0)            = 0
[pid  3623] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3614] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3614] exit_group(0)               = ?
[pid  3614] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3614, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3607] close(3)                    = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3624
./strace-static-x86_64: Process 3624 attached
[pid  3624] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3624] setpgid(0, 0)               = 0
[pid  3624] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3624] write(3, "1000", 4)         = 4
[pid  3624] close(3)                    = 0
[pid  3624] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3624] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3624] pipe2([3, 4], 0)            = 0
[pid  3624] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3619] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3619] exit_group(0)               = ?
[pid  3619] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3619, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3625
./strace-static-x86_64: Process 3625 attached
[pid  3625] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3625] setpgid(0, 0)               = 0
[pid  3625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3625] write(3, "1000", 4)         = 4
[pid  3625] close(3)                    = 0
[pid  3621] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3625] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3621] exit_group(0 <unfinished ...>
[pid  3625] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3621] <... exit_group resumed>)   = ?
[pid  3625] pipe2([3, 4], 0)            = 0
[pid  3625] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3621] +++ exited with 0 +++
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3621, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3605] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3626
./strace-static-x86_64: Process 3626 attached
[pid  3626] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3626] setpgid(0, 0)               = 0
[pid  3626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3626] write(3, "1000", 4)         = 4
[pid  3626] close(3)                    = 0
[pid  3626] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3626] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3622] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3626] pipe2( <unfinished ...>
[pid  3622] exit_group(0 <unfinished ...>
[pid  3626] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3622] <... exit_group resumed>)   = ?
[pid  3626] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3622] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3622, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3623] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3623] exit_group(0)               = ?
[pid  3623] +++ exited with 0 +++
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3627
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3623, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3606] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3606] close(3)                    = 0
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3628
./strace-static-x86_64: Process 3627 attached
[pid  3627] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3627] setpgid(0, 0)               = 0
[pid  3627] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3627] write(3, "1000", 4)         = 4
[pid  3627] close(3)                    = 0
[pid  3627] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3627] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3627] pipe2(./strace-static-x86_64: Process 3628 attached
[3, 4], 0)            = 0
[pid  3627] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3628] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3628] setpgid(0, 0)               = 0
[pid  3628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3628] write(3, "1000", 4)         = 4
[pid  3628] close(3)                    = 0
[pid  3628] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3628] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3628] pipe2([3, 4], 0)            = 0
[pid  3628] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3620] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] exit_group(0)               = ?
[pid  3620] +++ exited with 0 +++
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3620, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3604] close(3)                    = 0
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3629
./strace-static-x86_64: Process 3629 attached
[pid  3629] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3629] setpgid(0, 0)               = 0
[pid  3629] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3629] write(3, "1000", 4)         = 4
[pid  3629] close(3)                    = 0
[pid  3629] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3629] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3629] pipe2([3, 4], 0)            = 0
[pid  3629] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3624] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3624] exit_group(0)               = ?
[pid  3627] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3624] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3624, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3607] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3627] exit_group(0 <unfinished ...>
[pid  3607] <... openat resumed>)       = 3
[pid  3627] <... exit_group resumed>)   = ?
[pid  3607] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3627] +++ exited with 0 +++
[pid  3607] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3627, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3607] close(3 <unfinished ...>
[pid  3608] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3607] <... close resumed>)        = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3630
./strace-static-x86_64: Process 3630 attached
[pid  3630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3630] setpgid(0, 0)               = 0
[pid  3608] <... restart_syscall resumed>) = 0
[pid  3630] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3630] write(3, "1000", 4 <unfinished ...>
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3630] <... write resumed>)        = 4
[pid  3608] <... openat resumed>)       = 3
[pid  3630] close(3 <unfinished ...>
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3630] <... close resumed>)        = 0
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3630] mkdir("./file0", 0777 <unfinished ...>
[pid  3608] close(3 <unfinished ...>
[pid  3630] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3608] <... close resumed>)        = 0
[pid  3630] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3630] pipe2([3, 4], 0)            = 0
[pid  3630] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3608] <... clone resumed>, child_tidptr=0x5555571ae690) = 3631
./strace-static-x86_64: Process 3631 attached
[pid  3631] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3631] setpgid(0, 0)               = 0
[pid  3631] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3631] write(3, "1000", 4)         = 4
[pid  3631] close(3)                    = 0
[pid  3631] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3631] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3631] pipe2([3, 4], 0)            = 0
[pid  3631] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3625] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3625] exit_group(0)               = ?
[pid  3625] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3625, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3632
./strace-static-x86_64: Process 3632 attached
[pid  3632] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3632] setpgid(0, 0)               = 0
[pid  3632] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3632] write(3, "1000", 4)         = 4
[pid  3632] close(3)                    = 0
[pid  3632] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3632] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3632] pipe2([3, 4], 0)            = 0
[pid  3632] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3626] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3626] exit_group(0)               = ?
[pid  3626] +++ exited with 0 +++
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3626, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3633
./strace-static-x86_64: Process 3633 attached
[pid  3633] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3633] setpgid(0, 0)               = 0
[pid  3633] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3633] write(3, "1000", 4)         = 4
[pid  3633] close(3)                    = 0
[pid  3633] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3633] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3633] pipe2([3, 4], 0)            = 0
[pid  3633] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3628] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3628] exit_group(0)               = ?
[pid  3628] +++ exited with 0 +++
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3628, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3606] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3606] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3606] close(3)                    = 0
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3634
./strace-static-x86_64: Process 3634 attached
[pid  3634] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3634] setpgid(0, 0)               = 0
[pid  3634] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3634] write(3, "1000", 4)         = 4
[pid  3634] close(3)                    = 0
[pid  3634] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3634] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3634] pipe2([3, 4], 0)            = 0
[pid  3634] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3629] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3629] exit_group(0)               = ?
[pid  3629] +++ exited with 0 +++
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3629, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3604] close(3)                    = 0
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3635
./strace-static-x86_64: Process 3635 attached
[pid  3635] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3635] setpgid(0, 0)               = 0
[pid  3635] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3635] write(3, "1000", 4)         = 4
[pid  3635] close(3)                    = 0
[pid  3635] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3635] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3635] pipe2([3, 4], 0)            = 0
[pid  3635] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3632] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3632] exit_group(0)               = ?
[pid  3632] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3632, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3636
./strace-static-x86_64: Process 3636 attached
[pid  3630] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3636] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3630] exit_group(0 <unfinished ...>
[pid  3636] <... prctl resumed>)        = 0
[pid  3630] <... exit_group resumed>)   = ?
[pid  3636] setpgid(0, 0 <unfinished ...>
[pid  3630] +++ exited with 0 +++
[pid  3636] <... setpgid resumed>)      = 0
[pid  3636] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3636] write(3, "1000", 4)         = 4
[pid  3636] close(3 <unfinished ...>
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3630, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3636] <... close resumed>)        = 0
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3636] mkdir("./file0", 0777 <unfinished ...>
[pid  3607] <... openat resumed>)       = 3
[pid  3636] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3607] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3636] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3607] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3636] pipe2( <unfinished ...>
[pid  3607] close(3 <unfinished ...>
[pid  3636] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3607] <... close resumed>)        = 0
[pid  3636] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3637
./strace-static-x86_64: Process 3637 attached
[pid  3637] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3637] setpgid(0, 0)               = 0
[pid  3637] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3637] write(3, "1000", 4)         = 4
[pid  3637] close(3)                    = 0
[pid  3637] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3637] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3637] pipe2([3, 4], 0)            = 0
[pid  3637] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3631] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3631] exit_group(0)               = ?
[pid  3631] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3631, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3638
[pid  3633] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3633] exit_group(0)               = ?
[pid  3633] +++ exited with 0 +++
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3633, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3638 attached
, child_tidptr=0x5555571ae690) = 3639
[pid  3638] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3638] setpgid(0, 0)               = 0
[pid  3638] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3638] write(3, "1000", 4)         = 4
[pid  3638] close(3)                    = 0
./strace-static-x86_64: Process 3639 attached
[pid  3638] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3639] setpgid(0, 0 <unfinished ...>
[pid  3638] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3639] <... setpgid resumed>)      = 0
[pid  3638] pipe2( <unfinished ...>
[pid  3639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3638] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3639] <... openat resumed>)       = 3
[pid  3638] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3639] write(3, "1000", 4)         = 4
[pid  3639] close(3)                    = 0
[pid  3639] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3639] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3639] pipe2([3, 4], 0)            = 0
[pid  3639] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3634] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3634] exit_group(0)               = ?
[pid  3634] +++ exited with 0 +++
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3634, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3606] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3606] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3606] close(3)                    = 0
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3640
./strace-static-x86_64: Process 3640 attached
[pid  3640] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3640] setpgid(0, 0)               = 0
[pid  3640] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3640] write(3, "1000", 4)         = 4
[pid  3640] close(3)                    = 0
[pid  3640] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3640] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3640] pipe2([3, 4], 0)            = 0
[pid  3640] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3637] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3637] exit_group(0)               = ?
[pid  3637] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3637, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3607] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3607] close(3)                    = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3641 attached
 <unfinished ...>
[pid  3635] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3635] exit_group(0)               = ?
[pid  3635] +++ exited with 0 +++
[pid  3641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3641] setpgid(0, 0 <unfinished ...>
[pid  3607] <... clone resumed>, child_tidptr=0x5555571ae690) = 3641
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3635, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3641] <... setpgid resumed>)      = 0
[pid  3641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3641] write(3, "1000", 4)         = 4
[pid  3641] close(3)                    = 0
[pid  3641] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3641] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3641] pipe2([3, 4], 0)            = 0
[pid  3604] <... openat resumed>)       = 3
[pid  3641] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3636] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3604] close(3 <unfinished ...>
[pid  3636] exit_group(0 <unfinished ...>
[pid  3604] <... close resumed>)        = 0
[pid  3636] <... exit_group resumed>)   = ?
[pid  3636] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3636, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3610] <... clone resumed>, child_tidptr=0x5555571ae690) = 3642
[pid  3604] <... clone resumed>, child_tidptr=0x5555571ae690) = 3643
./strace-static-x86_64: Process 3642 attached
[pid  3642] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3642] setpgid(0, 0)               = 0
[pid  3642] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3642] write(3, "1000", 4)         = 4
[pid  3642] close(3)                    = 0
[pid  3642] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3642] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3642] pipe2([3, 4], 0)            = 0
./strace-static-x86_64: Process 3643 attached
[pid  3642] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3643] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3643] setpgid(0, 0)               = 0
[pid  3643] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3643] write(3, "1000", 4)         = 4
[pid  3643] close(3)                    = 0
[pid  3643] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3643] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3643] pipe2([3, 4], 0)            = 0
[pid  3643] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3638] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3638] exit_group(0)               = ?
[pid  3638] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3638, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3608] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3644
./strace-static-x86_64: Process 3644 attached
[pid  3644] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3644] setpgid(0, 0)               = 0
[pid  3644] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3644] write(3, "1000", 4)         = 4
[pid  3644] close(3)                    = 0
[pid  3644] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3644] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3644] pipe2([3, 4], 0)            = 0
[pid  3644] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3639] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3639] exit_group(0)               = ?
[pid  3639] +++ exited with 0 +++
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3639, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3645
./strace-static-x86_64: Process 3645 attached
[pid  3645] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3645] setpgid(0, 0)               = 0
[pid  3645] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3645] write(3, "1000", 4)         = 4
[pid  3645] close(3)                    = 0
[pid  3645] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3645] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3645] pipe2([3, 4], 0)            = 0
[pid  3640] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3645] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3640] exit_group(0)               = ?
[pid  3640] +++ exited with 0 +++
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3640, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3606] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3606] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3606] close(3)                    = 0
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3646
./strace-static-x86_64: Process 3646 attached
[pid  3641] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3646] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3641] exit_group(0 <unfinished ...>
[pid  3646] <... prctl resumed>)        = 0
[pid  3641] <... exit_group resumed>)   = ?
[pid  3646] setpgid(0, 0 <unfinished ...>
[pid  3641] +++ exited with 0 +++
[pid  3646] <... setpgid resumed>)      = 0
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3641, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3646] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3646] write(3, "1000", 4)         = 4
[pid  3646] close(3)                    = 0
[pid  3646] mkdir("./file0", 0777 <unfinished ...>
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3646] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3607] <... openat resumed>)       = 3
[pid  3646] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3607] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3646] pipe2( <unfinished ...>
[pid  3607] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3646] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3607] close(3 <unfinished ...>
[pid  3646] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3607] <... close resumed>)        = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3647
./strace-static-x86_64: Process 3647 attached
[pid  3647] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3647] setpgid(0, 0)               = 0
[pid  3647] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3647] write(3, "1000", 4)         = 4
[pid  3647] close(3)                    = 0
[pid  3647] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3647] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3647] pipe2([3, 4], 0)            = 0
[pid  3647] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3643] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3643] exit_group(0)               = ?
[pid  3643] +++ exited with 0 +++
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3643, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3604] close(3)                    = 0
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3648
./strace-static-x86_64: Process 3648 attached
[pid  3648] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3648] setpgid(0, 0)               = 0
[pid  3648] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3648] write(3, "1000", 4)         = 4
[pid  3648] close(3)                    = 0
[pid  3648] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3648] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3648] pipe2([3, 4], 0)            = 0
[pid  3648] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3642] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3642] exit_group(0)               = ?
[pid  3642] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3642, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3646] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3646] exit_group(0 <unfinished ...>
[pid  3610] <... clone resumed>, child_tidptr=0x5555571ae690) = 3649
./strace-static-x86_64: Process 3649 attached
[pid  3646] <... exit_group resumed>)   = ?
[pid  3649] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3646] +++ exited with 0 +++
[pid  3649] <... prctl resumed>)        = 0
[pid  3649] setpgid(0, 0 <unfinished ...>
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3646, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3649] <... setpgid resumed>)      = 0
[pid  3649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3649] write(3, "1000", 4)         = 4
[pid  3606] <... openat resumed>)       = 3
[pid  3649] close(3 <unfinished ...>
[pid  3606] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3649] <... close resumed>)        = 0
[pid  3606] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3649] mkdir("./file0", 0777 <unfinished ...>
[pid  3606] close(3 <unfinished ...>
[pid  3649] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3606] <... close resumed>)        = 0
[pid  3649] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3649] pipe2([3, 4], 0)            = 0
[pid  3606] <... clone resumed>, child_tidptr=0x5555571ae690) = 3650
[pid  3649] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,"./strace-static-x86_64: Process 3650 attached
 <unfinished ...>
[pid  3650] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3650] setpgid(0, 0)               = 0
[pid  3650] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3650] write(3, "1000", 4)         = 4
[pid  3650] close(3)                    = 0
[pid  3650] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3650] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3650] pipe2([3, 4], 0)            = 0
[pid  3644] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3650] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3644] exit_group(0)               = ?
[pid  3644] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3644, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3608] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3645] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3645] exit_group(0)               = ?
[pid  3645] +++ exited with 0 +++
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3645, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3608] <... clone resumed>, child_tidptr=0x5555571ae690) = 3651
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3652
./strace-static-x86_64: Process 3651 attached
[pid  3651] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 3652 attached
) = 0
[pid  3651] setpgid(0, 0 <unfinished ...>
[pid  3652] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3651] <... setpgid resumed>)      = 0
[pid  3652] <... prctl resumed>)        = 0
[pid  3652] setpgid(0, 0 <unfinished ...>
[pid  3651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3652] <... setpgid resumed>)      = 0
[pid  3652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3651] <... openat resumed>)       = 3
[pid  3652] write(3, "1000", 4)         = 4
[pid  3651] write(3, "1000", 4 <unfinished ...>
[pid  3652] close(3 <unfinished ...>
[pid  3651] <... write resumed>)        = 4
[pid  3652] <... close resumed>)        = 0
[pid  3651] close(3 <unfinished ...>
[pid  3652] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3651] <... close resumed>)        = 0
[pid  3652] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3651] mkdir("./file0", 0777 <unfinished ...>
[pid  3652] pipe2( <unfinished ...>
[pid  3651] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3652] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3652] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3651] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3651] pipe2([3, 4], 0)            = 0
[pid  3651] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3647] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3647] exit_group(0)               = ?
[pid  3647] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3647, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3607] close(3 <unfinished ...>
[pid  3649] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3607] <... close resumed>)        = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3649] exit_group(0)               = ?
[pid  3607] <... clone resumed>, child_tidptr=0x5555571ae690) = 3653
[pid  3649] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3649, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3653 attached
, child_tidptr=0x5555571ae690) = 3654
[pid  3653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3653] setpgid(0, 0./strace-static-x86_64: Process 3654 attached
)               = 0
[pid  3654] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3654] <... prctl resumed>)        = 0
[pid  3654] setpgid(0, 0 <unfinished ...>
[pid  3653] <... openat resumed>)       = 3
[pid  3654] <... setpgid resumed>)      = 0
[pid  3653] write(3, "1000", 4 <unfinished ...>
[pid  3648] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3654] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3654] write(3, "1000", 4)         = 4
[pid  3654] close(3)                    = 0
[pid  3654] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3654] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3654] pipe2([3, 4], 0)            = 0
[pid  3653] <... write resumed>)        = 4
[pid  3654] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3653] close(3 <unfinished ...>
[pid  3648] exit_group(0 <unfinished ...>
[pid  3653] <... close resumed>)        = 0
[pid  3653] mkdir("./file0", 0777 <unfinished ...>
[pid  3648] <... exit_group resumed>)   = ?
[pid  3653] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3648] +++ exited with 0 +++
[pid  3653] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3653] pipe2( <unfinished ...>
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3648, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3653] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3604] <... openat resumed>)       = 3
[pid  3604] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3653] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3604] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3604] close(3)                    = 0
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3655
[pid  3651] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3651] exit_group(0)               = ?
[pid  3651] +++ exited with 0 +++
./strace-static-x86_64: Process 3655 attached
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3651, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3655] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3608] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3655] <... prctl resumed>)        = 0
[pid  3608] <... restart_syscall resumed>) = 0
[pid  3655] setpgid(0, 0)               = 0
[pid  3655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3655] <... openat resumed>)       = 3
[pid  3655] write(3, "1000", 4 <unfinished ...>
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3655] <... write resumed>)        = 4
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3655] close(3 <unfinished ...>
[pid  3608] close(3 <unfinished ...>
[pid  3655] <... close resumed>)        = 0
[pid  3608] <... close resumed>)        = 0
[pid  3655] mkdir("./file0", 0777 <unfinished ...>
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3655] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3655] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3608] <... clone resumed>, child_tidptr=0x5555571ae690) = 3656
./strace-static-x86_64: Process 3656 attached
[pid  3656] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3655] pipe2([3, 4], 0)            = 0
[pid  3655] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3656] <... prctl resumed>)        = 0
[pid  3656] setpgid(0, 0)               = 0
[pid  3656] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3656] write(3, "1000", 4)         = 4
[pid  3656] close(3)                    = 0
[pid  3656] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3656] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3656] pipe2([3, 4], 0)            = 0
[pid  3656] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3650] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3650] exit_group(0)               = ?
[pid  3650] +++ exited with 0 +++
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3650, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3606] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3606] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3606] close(3)                    = 0
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3657
./strace-static-x86_64: Process 3657 attached
[pid  3657] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3657] setpgid(0, 0)               = 0
[pid  3657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3657] write(3, "1000", 4)         = 4
[pid  3657] close(3)                    = 0
[pid  3657] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3657] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3657] pipe2([3, 4], 0)            = 0
[pid  3657] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3652] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3652] exit_group(0)               = ?
[pid  3652] +++ exited with 0 +++
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3652, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3605] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3658
./strace-static-x86_64: Process 3658 attached
[pid  3658] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3658] setpgid(0, 0)               = 0
[pid  3658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3658] write(3, "1000", 4)         = 4
[pid  3658] close(3)                    = 0
[pid  3658] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3658] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3658] pipe2([3, 4], 0)            = 0
[pid  3658] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3656] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3656] exit_group(0)               = ?
[pid  3656] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3656, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3608] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3659
./strace-static-x86_64: Process 3659 attached
[pid  3659] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3659] setpgid(0, 0)               = 0
[pid  3659] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3659] write(3, "1000", 4)         = 4
[pid  3659] close(3)                    = 0
[pid  3659] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3659] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3659] pipe2([3, 4], 0)            = 0
[pid  3659] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3655] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3655] exit_group(0)               = ?
[pid  3655] +++ exited with 0 +++
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3655, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3604] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3604] close(3)                    = 0
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3660
./strace-static-x86_64: Process 3660 attached
[pid  3660] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3660] setpgid(0, 0)               = 0
[pid  3660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3660] write(3, "1000", 4)         = 4
[pid  3660] close(3)                    = 0
[pid  3660] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3660] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3660] pipe2([3, 4], 0)            = 0
[pid  3660] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3653] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3653] exit_group(0)               = ?
[pid  3653] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3653, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3607] close(3)                    = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3661
./strace-static-x86_64: Process 3661 attached
[pid  3661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3661] setpgid(0, 0)               = 0
[pid  3661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3661] write(3, "1000", 4)         = 4
[pid  3661] close(3)                    = 0
[pid  3661] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3661] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3661] pipe2([3, 4], 0)            = 0
[pid  3661] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3654] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3654] exit_group(0)               = ?
[pid  3654] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3654, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3662
./strace-static-x86_64: Process 3662 attached
[pid  3662] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3662] setpgid(0, 0)               = 0
[pid  3662] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3662] write(3, "1000", 4)         = 4
[pid  3662] close(3)                    = 0
[pid  3662] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3662] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3662] pipe2([3, 4], 0)            = 0
[pid  3662] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3657] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3657] exit_group(0)               = ?
[pid  3657] +++ exited with 0 +++
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3657, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3606] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3606] close(3)                    = 0
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3663
./strace-static-x86_64: Process 3663 attached
[pid  3663] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3663] setpgid(0, 0)               = 0
[pid  3663] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3663] write(3, "1000", 4)         = 4
[pid  3663] close(3)                    = 0
[pid  3663] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3663] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3658] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3658] exit_group(0)               = ?
[pid  3658] +++ exited with 0 +++
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3658, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3663] pipe2([3, 4], 0)            = 0
[pid  3663] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3664
./strace-static-x86_64: Process 3664 attached
[pid  3664] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3664] setpgid(0, 0)               = 0
[pid  3664] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3664] write(3, "1000", 4)         = 4
[pid  3664] close(3)                    = 0
[pid  3664] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3664] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3664] pipe2([3, 4], 0)            = 0
[pid  3664] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3660] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3660] exit_group(0)               = ?
[pid  3660] +++ exited with 0 +++
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3660, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3604] close(3)                    = 0
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3665
./strace-static-x86_64: Process 3665 attached
[pid  3665] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3665] setpgid(0, 0)               = 0
[pid  3665] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3665] write(3, "1000", 4)         = 4
[pid  3665] close(3)                    = 0
[pid  3665] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3665] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3665] pipe2([3, 4], 0)            = 0
[pid  3665] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3659] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3659] exit_group(0)               = ?
[pid  3659] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3659, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3666
./strace-static-x86_64: Process 3666 attached
[pid  3666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3666] setpgid(0, 0)               = 0
[pid  3661] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3661] exit_group(0)               = ?
[pid  3661] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3661, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3607] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3607] <... restart_syscall resumed>) = 0
[pid  3666] <... openat resumed>)       = 3
[pid  3666] write(3, "1000", 4 <unfinished ...>
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3666] <... write resumed>)        = 4
[pid  3607] <... openat resumed>)       = 3
[pid  3666] close(3 <unfinished ...>
[pid  3607] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3666] <... close resumed>)        = 0
[pid  3607] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3666] mkdir("./file0", 0777 <unfinished ...>
[pid  3607] close(3 <unfinished ...>
[pid  3666] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3607] <... close resumed>)        = 0
[pid  3666] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3666] pipe2([3, 4], 0)            = 0
[pid  3607] <... clone resumed>, child_tidptr=0x5555571ae690) = 3667
[pid  3666] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,"./strace-static-x86_64: Process 3667 attached
 <unfinished ...>
[pid  3667] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3667] setpgid(0, 0)               = 0
[pid  3667] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3667] write(3, "1000", 4)         = 4
[pid  3667] close(3)                    = 0
[pid  3667] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3667] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3667] pipe2([3, 4], 0)            = 0
[pid  3662] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3667] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3662] exit_group(0)               = ?
[pid  3662] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3662, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3668
./strace-static-x86_64: Process 3668 attached
[pid  3668] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3668] setpgid(0, 0)               = 0
[pid  3668] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3668] write(3, "1000", 4)         = 4
[pid  3668] close(3)                    = 0
[pid  3668] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3668] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3668] pipe2([3, 4], 0)            = 0
[pid  3668] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3663] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3663] exit_group(0)               = ?
[pid  3663] +++ exited with 0 +++
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3663, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3606] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3606] close(3)                    = 0
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3669 attached
, child_tidptr=0x5555571ae690) = 3669
[pid  3669] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3669] setpgid(0, 0)               = 0
[pid  3669] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3669] write(3, "1000", 4)         = 4
[pid  3669] close(3)                    = 0
[pid  3669] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3669] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3669] pipe2([3, 4], 0)            = 0
[pid  3669] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3664] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3664] exit_group(0)               = ?
[pid  3664] +++ exited with 0 +++
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3664, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3670
./strace-static-x86_64: Process 3670 attached
[pid  3670] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3670] setpgid(0, 0)               = 0
[pid  3670] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3670] write(3, "1000", 4)         = 4
[pid  3670] close(3)                    = 0
[pid  3670] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3670] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3665] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3670] pipe2([3, 4], 0)            = 0
[pid  3665] exit_group(0 <unfinished ...>
[pid  3670] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3665] <... exit_group resumed>)   = ?
[pid  3665] +++ exited with 0 +++
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3665, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3668] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3668] exit_group(0)               = ?
[pid  3668] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3668, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3610] <... openat resumed>)       = 3
[pid  3610] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3604] <... openat resumed>)       = 3
[pid  3610] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3604] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3610] close(3 <unfinished ...>
[pid  3604] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3610] <... close resumed>)        = 0
[pid  3604] close(3)                    = 0
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3604] <... clone resumed>, child_tidptr=0x5555571ae690) = 3671
./strace-static-x86_64: Process 3671 attached
[pid  3610] <... clone resumed>, child_tidptr=0x5555571ae690) = 3672
[pid  3671] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3671] setpgid(0, 0)               = 0
[pid  3671] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3671] write(3, "1000", 4)         = 4
[pid  3671] close(3)                    = 0
[pid  3671] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3671] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3671] pipe2([3, 4], 0)            = 0
./strace-static-x86_64: Process 3672 attached
[pid  3671] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3666] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3672] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3666] exit_group(0)               = ?
[pid  3672] <... prctl resumed>)        = 0
[pid  3666] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3666, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3672] setpgid(0, 0)               = 0
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3608] <... openat resumed>)       = 3
[pid  3672] <... openat resumed>)       = 3
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3672] write(3, "1000", 4 <unfinished ...>
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3672] <... write resumed>)        = 4
[pid  3608] close(3 <unfinished ...>
[pid  3672] close(3 <unfinished ...>
[pid  3608] <... close resumed>)        = 0
[pid  3672] <... close resumed>)        = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3672] mkdir("./file0", 0777./strace-static-x86_64: Process 3673 attached
 <unfinished ...>
[pid  3673] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3673] setpgid(0, 0)               = 0
[pid  3673] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3672] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3608] <... clone resumed>, child_tidptr=0x5555571ae690) = 3673
[pid  3673] <... openat resumed>)       = 3
[pid  3672] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3672] pipe2( <unfinished ...>
[pid  3673] write(3, "1000", 4)         = 4
[pid  3672] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3673] close(3)                    = 0
[pid  3672] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3673] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3673] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3667] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3667] exit_group(0 <unfinished ...>
[pid  3673] pipe2( <unfinished ...>
[pid  3667] <... exit_group resumed>)   = ?
[pid  3667] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3667, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3673] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3673] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3607] close(3)                    = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3674
./strace-static-x86_64: Process 3674 attached
[pid  3669] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3669] exit_group(0)               = ?
[pid  3669] +++ exited with 0 +++
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3669, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3606] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3674] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3606] close(3 <unfinished ...>
[pid  3674] <... prctl resumed>)        = 0
[pid  3606] <... close resumed>)        = 0
[pid  3674] setpgid(0, 0 <unfinished ...>
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3674] <... setpgid resumed>)      = 0
[pid  3674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3606] <... clone resumed>, child_tidptr=0x5555571ae690) = 3675
[pid  3674] <... openat resumed>)       = 3
[pid  3674] write(3, "1000", 4)         = 4
./strace-static-x86_64: Process 3675 attached
[pid  3675] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3674] close(3)                    = 0
[pid  3675] <... prctl resumed>)        = 0
[pid  3674] mkdir("./file0", 0777 <unfinished ...>
[pid  3675] setpgid(0, 0 <unfinished ...>
[pid  3674] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3675] <... setpgid resumed>)      = 0
[pid  3675] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3675] write(3, "1000", 4)         = 4
[pid  3675] close(3)                    = 0
[pid  3675] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3675] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3674] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3675] pipe2([3, 4], 0)            = 0
[pid  3675] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3674] pipe2([3, 4], 0)            = 0
[pid  3671] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3674] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3671] exit_group(0)               = ?
[pid  3671] +++ exited with 0 +++
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3671, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3604] close(3)                    = 0
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3676
./strace-static-x86_64: Process 3676 attached
[pid  3672] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3676] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3672] exit_group(0 <unfinished ...>
[pid  3676] <... prctl resumed>)        = 0
[pid  3672] <... exit_group resumed>)   = ?
[pid  3676] setpgid(0, 0 <unfinished ...>
[pid  3672] +++ exited with 0 +++
[pid  3676] <... setpgid resumed>)      = 0
[pid  3676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3676] write(3, "1000", 4)         = 4
[pid  3676] close(3)                    = 0
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3672, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3676] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3676] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3676] pipe2([3, 4], 0)            = 0
[pid  3676] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3677
[pid  3670] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3670] exit_group(0)               = ?
[pid  3670] +++ exited with 0 +++
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3670, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3605] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3678
./strace-static-x86_64: Process 3678 attached
[pid  3678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3678] setpgid(0, 0./strace-static-x86_64: Process 3677 attached
 <unfinished ...>
[pid  3677] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3677] setpgid(0, 0)               = 0
[pid  3677] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3678] <... setpgid resumed>)      = 0
[pid  3677] write(3, "1000", 4 <unfinished ...>
[pid  3678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3677] <... write resumed>)        = 4
[pid  3678] <... openat resumed>)       = 3
[pid  3678] write(3, "1000", 4)         = 4
[pid  3678] close(3)                    = 0
[pid  3677] close(3 <unfinished ...>
[pid  3678] mkdir("./file0", 0777 <unfinished ...>
[pid  3677] <... close resumed>)        = 0
[pid  3678] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3677] mkdir("./file0", 0777 <unfinished ...>
[pid  3678] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3677] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3678] pipe2( <unfinished ...>
[pid  3677] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3677] pipe2( <unfinished ...>
[pid  3678] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3677] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3677] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3678] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3673] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3673] exit_group(0)               = ?
[pid  3673] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3673, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3679
./strace-static-x86_64: Process 3679 attached
[pid  3679] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3679] setpgid(0, 0)               = 0
[pid  3679] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3679] write(3, "1000", 4)         = 4
[pid  3679] close(3)                    = 0
[pid  3679] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3679] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3679] pipe2([3, 4], 0)            = 0
[pid  3679] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3677] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3677] exit_group(0)               = ?
[pid  3677] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3677, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3680
./strace-static-x86_64: Process 3680 attached
[pid  3680] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3680] setpgid(0, 0)               = 0
[pid  3680] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3680] write(3, "1000", 4)         = 4
[pid  3674] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3680] close(3 <unfinished ...>
[pid  3674] exit_group(0 <unfinished ...>
[pid  3680] <... close resumed>)        = 0
[pid  3674] <... exit_group resumed>)   = ?
[pid  3680] mkdir("./file0", 0777 <unfinished ...>
[pid  3674] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3674, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3607] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3680] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3680] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3607] <... openat resumed>)       = 3
[pid  3680] pipe2( <unfinished ...>
[pid  3607] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3680] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3607] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3607] close(3)                    = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3681
[pid  3680] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,"./strace-static-x86_64: Process 3681 attached
 <unfinished ...>
[pid  3681] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3681] setpgid(0, 0)               = 0
[pid  3681] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3675] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3681] write(3, "1000", 4 <unfinished ...>
[pid  3675] exit_group(0 <unfinished ...>
[pid  3681] <... write resumed>)        = 4
[pid  3681] close(3 <unfinished ...>
[pid  3675] <... exit_group resumed>)   = ?
[pid  3681] <... close resumed>)        = 0
[pid  3681] mkdir("./file0", 0777 <unfinished ...>
[pid  3675] +++ exited with 0 +++
[pid  3681] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3681] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3675, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3681] pipe2( <unfinished ...>
[pid  3606] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3681] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3606] <... restart_syscall resumed>) = 0
[pid  3681] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3606] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3606] close(3)                    = 0
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3682
./strace-static-x86_64: Process 3682 attached
[pid  3682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3682] setpgid(0, 0)               = 0
[pid  3682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3682] write(3, "1000", 4)         = 4
[pid  3682] close(3)                    = 0
[pid  3682] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3682] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3682] pipe2([3, 4], 0)            = 0
[pid  3682] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3676] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3676] exit_group(0)               = ?
[pid  3676] +++ exited with 0 +++
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3676, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3604] close(3)                    = 0
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3683
./strace-static-x86_64: Process 3683 attached
[pid  3683] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3683] setpgid(0, 0)               = 0
[pid  3683] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3683] write(3, "1000", 4)         = 4
[pid  3683] close(3)                    = 0
[pid  3683] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3683] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3683] pipe2([3, 4], 0)            = 0
[pid  3683] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3678] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3678] exit_group(0)               = ?
[pid  3678] +++ exited with 0 +++
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3678, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3605] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3684
./strace-static-x86_64: Process 3684 attached
[pid  3684] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3684] setpgid(0, 0)               = 0
[pid  3684] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3684] write(3, "1000", 4)         = 4
[pid  3684] close(3)                    = 0
[pid  3684] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3684] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3684] pipe2([3, 4], 0)            = 0
[pid  3684] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3679] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3679] exit_group(0)               = ?
[pid  3679] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3679, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3608] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3685
./strace-static-x86_64: Process 3685 attached
[pid  3685] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3685] setpgid(0, 0)               = 0
[pid  3685] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3685] write(3, "1000", 4)         = 4
[pid  3685] close(3)                    = 0
[pid  3685] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3685] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3685] pipe2([3, 4], 0)            = 0
[pid  3685] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3680] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3680] exit_group(0)               = ?
[pid  3680] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3680, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3686
./strace-static-x86_64: Process 3686 attached
[pid  3686] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3686] setpgid(0, 0)               = 0
[pid  3686] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3686] write(3, "1000", 4)         = 4
[pid  3686] close(3)                    = 0
[pid  3686] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3686] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3686] pipe2([3, 4], 0)            = 0
[pid  3686] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3681] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3681] exit_group(0)               = ?
[pid  3681] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3681, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3607] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3607] close(3)                    = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3687
./strace-static-x86_64: Process 3687 attached
[pid  3687] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3687] setpgid(0, 0)               = 0
[pid  3687] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3687] write(3, "1000", 4)         = 4
[pid  3687] close(3)                    = 0
[pid  3687] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3687] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3687] pipe2([3, 4], 0)            = 0
[pid  3687] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3682] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3682] exit_group(0)               = ?
[pid  3682] +++ exited with 0 +++
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3682, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3606] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3606] close(3)                    = 0
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3688
./strace-static-x86_64: Process 3688 attached
[pid  3688] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3688] setpgid(0, 0)               = 0
[pid  3688] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3688] write(3, "1000", 4)         = 4
[pid  3688] close(3)                    = 0
[pid  3688] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3688] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3688] pipe2([3, 4], 0)            = 0
[pid  3688] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3683] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3683] exit_group(0)               = ?
[pid  3683] +++ exited with 0 +++
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3683, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3604] close(3)                    = 0
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3689
./strace-static-x86_64: Process 3689 attached
[pid  3689] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3689] setpgid(0, 0)               = 0
[pid  3689] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3689] write(3, "1000", 4)         = 4
[pid  3689] close(3)                    = 0
[pid  3689] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3689] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3689] pipe2([3, 4], 0)            = 0
[pid  3689] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3684] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3684] exit_group(0)               = ?
[pid  3684] +++ exited with 0 +++
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3684, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3690
./strace-static-x86_64: Process 3690 attached
[pid  3690] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3690] setpgid(0, 0)               = 0
[pid  3690] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3690] write(3, "1000", 4)         = 4
[pid  3690] close(3)                    = 0
[pid  3690] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3690] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3690] pipe2([3, 4], 0)            = 0
[pid  3690] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3685] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3685] exit_group(0)               = ?
[pid  3685] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3685, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3608] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3691
./strace-static-x86_64: Process 3691 attached
[pid  3691] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3691] setpgid(0, 0)               = 0
[pid  3691] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3691] write(3, "1000", 4)         = 4
[pid  3691] close(3)                    = 0
[pid  3691] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3691] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3691] pipe2([3, 4], 0)            = 0
[pid  3691] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3687] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3687] exit_group(0)               = ?
[pid  3687] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3687, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3607] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3607] close(3)                    = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3692
./strace-static-x86_64: Process 3692 attached
[pid  3686] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3692] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3686] exit_group(0 <unfinished ...>
[pid  3692] <... prctl resumed>)        = 0
[pid  3686] <... exit_group resumed>)   = ?
[pid  3692] setpgid(0, 0 <unfinished ...>
[pid  3686] +++ exited with 0 +++
[pid  3692] <... setpgid resumed>)      = 0
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3686, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3610] close(3 <unfinished ...>
[pid  3692] <... openat resumed>)       = 3
[pid  3610] <... close resumed>)        = 0
[pid  3692] write(3, "1000", 4 <unfinished ...>
[pid  3688] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3692] <... write resumed>)        = 4
[pid  3688] exit_group(0 <unfinished ...>
[pid  3692] close(3 <unfinished ...>
[pid  3688] <... exit_group resumed>)   = ?
[pid  3610] <... clone resumed>, child_tidptr=0x5555571ae690) = 3693
[pid  3692] <... close resumed>)        = 0
[pid  3692] mkdir("./file0", 0777 <unfinished ...>
[pid  3688] +++ exited with 0 +++
[pid  3692] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3692] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3688, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3692] pipe2( <unfinished ...>
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
./strace-static-x86_64: Process 3693 attached
[pid  3606] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3693] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3606] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3693] <... prctl resumed>)        = 0
[pid  3606] close(3 <unfinished ...>
[pid  3693] setpgid(0, 0 <unfinished ...>
[pid  3606] <... close resumed>)        = 0
[pid  3693] <... setpgid resumed>)      = 0
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3692] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3692] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3606] <... clone resumed>, child_tidptr=0x5555571ae690) = 3694
[pid  3693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 3694 attached
) = 3
[pid  3693] write(3, "1000", 4)         = 4
[pid  3693] close(3 <unfinished ...>
[pid  3694] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3693] <... close resumed>)        = 0
[pid  3694] <... prctl resumed>)        = 0
[pid  3693] mkdir("./file0", 0777 <unfinished ...>
[pid  3689] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3694] setpgid(0, 0 <unfinished ...>
[pid  3693] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3689] exit_group(0 <unfinished ...>
[pid  3694] <... setpgid resumed>)      = 0
[pid  3693] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3689] <... exit_group resumed>)   = ?
[pid  3694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3693] pipe2( <unfinished ...>
[pid  3694] <... openat resumed>)       = 3
[pid  3693] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3689] +++ exited with 0 +++
[pid  3694] write(3, "1000", 4 <unfinished ...>
[pid  3693] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3694] <... write resumed>)        = 4
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3689, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3694] close(3 <unfinished ...>
[pid  3604] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3694] <... close resumed>)        = 0
[pid  3604] <... restart_syscall resumed>) = 0
[pid  3694] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3694] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3694] pipe2( <unfinished ...>
[pid  3604] <... openat resumed>)       = 3
[pid  3694] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3604] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3694] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3604] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3604] close(3)                    = 0
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3690] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3690] exit_group(0./strace-static-x86_64: Process 3695 attached
)               = ?
[pid  3695] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3604] <... clone resumed>, child_tidptr=0x5555571ae690) = 3695
[pid  3695] <... prctl resumed>)        = 0
[pid  3690] +++ exited with 0 +++
[pid  3695] setpgid(0, 0)               = 0
[pid  3695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3690, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3695] <... openat resumed>)       = 3
[pid  3605] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3695] write(3, "1000", 4)         = 4
[pid  3605] <... restart_syscall resumed>) = 0
[pid  3695] close(3)                    = 0
[pid  3695] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3695] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3695] pipe2([3, 4], 0)            = 0
[pid  3695] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3691] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3691] exit_group(0 <unfinished ...>
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3691] <... exit_group resumed>)   = ?
[pid  3691] +++ exited with 0 +++
[pid  3605] <... openat resumed>)       = 3
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3691, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] <... clone resumed>, child_tidptr=0x5555571ae690) = 3696
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3697
./strace-static-x86_64: Process 3696 attached
[pid  3692] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3696] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3696] setpgid(0, 0)               = 0
[pid  3696] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3696] write(3, "1000", 4)         = 4
./strace-static-x86_64: Process 3697 attached
[pid  3696] close(3 <unfinished ...>
[pid  3692] exit_group(0 <unfinished ...>
[pid  3697] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3696] <... close resumed>)        = 0
[pid  3692] <... exit_group resumed>)   = ?
[pid  3696] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3696] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3697] <... prctl resumed>)        = 0
[pid  3696] pipe2( <unfinished ...>
[pid  3692] +++ exited with 0 +++
[pid  3697] setpgid(0, 0 <unfinished ...>
[pid  3696] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3697] <... setpgid resumed>)      = 0
[pid  3696] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3692, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3697] <... openat resumed>)       = 3
[pid  3697] write(3, "1000", 4 <unfinished ...>
[pid  3607] <... openat resumed>)       = 3
[pid  3697] <... write resumed>)        = 4
[pid  3607] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3697] close(3)                    = 0
[pid  3607] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3697] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3607] close(3)                    = 0
[pid  3697] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3697] pipe2([3, 4], 0)            = 0
[pid  3697] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3607] <... clone resumed>, child_tidptr=0x5555571ae690) = 3698
./strace-static-x86_64: Process 3698 attached
[pid  3698] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3698] setpgid(0, 0)               = 0
[pid  3698] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3698] write(3, "1000", 4)         = 4
[pid  3698] close(3)                    = 0
[pid  3698] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3698] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3698] pipe2([3, 4], 0)            = 0
[pid  3698] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3694] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3694] exit_group(0)               = ?
[pid  3694] +++ exited with 0 +++
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3694, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3606] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3606] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3606] close(3)                    = 0
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3699 attached
 <unfinished ...>
[pid  3699] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3606] <... clone resumed>, child_tidptr=0x5555571ae690) = 3699
[pid  3699] <... prctl resumed>)        = 0
[pid  3699] setpgid(0, 0)               = 0
[pid  3699] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3699] write(3, "1000", 4)         = 4
[pid  3699] close(3)                    = 0
[pid  3699] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3699] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3699] pipe2([3, 4], 0)            = 0
[pid  3699] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3695] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3695] exit_group(0)               = ?
[pid  3695] +++ exited with 0 +++
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3695, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3604] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3604] close(3)                    = 0
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3700
./strace-static-x86_64: Process 3700 attached
[pid  3693] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3700] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3693] exit_group(0 <unfinished ...>
[pid  3700] <... prctl resumed>)        = 0
[pid  3693] <... exit_group resumed>)   = ?
[pid  3700] setpgid(0, 0 <unfinished ...>
[pid  3693] +++ exited with 0 +++
[pid  3700] <... setpgid resumed>)      = 0
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3693, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3700] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3700] write(3, "1000", 4)         = 4
[pid  3700] close(3)                    = 0
[pid  3700] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3700] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3700] pipe2( <unfinished ...>
[pid  3610] <... openat resumed>)       = 3
[pid  3700] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3610] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3700] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3610] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3699] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3699] exit_group(0)               = ?
[pid  3699] +++ exited with 0 +++
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3699, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3610] <... clone resumed>, child_tidptr=0x5555571ae690) = 3701
./strace-static-x86_64: Process 3701 attached
[pid  3701] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3701] <... prctl resumed>)        = 0
[pid  3701] setpgid(0, 0)               = 0
[pid  3701] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3701] write(3, "1000", 4 <unfinished ...>
[pid  3606] <... openat resumed>)       = 3
[pid  3701] <... write resumed>)        = 4
[pid  3606] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3701] close(3 <unfinished ...>
[pid  3606] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3701] <... close resumed>)        = 0
[pid  3701] mkdir("./file0", 0777 <unfinished ...>
[pid  3606] close(3 <unfinished ...>
[pid  3701] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3701] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3701] pipe2([3, 4], 0)            = 0
[pid  3701] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3606] <... close resumed>)        = 0
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3697] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3606] <... clone resumed>, child_tidptr=0x5555571ae690) = 3702
[pid  3697] exit_group(0)               = ?
[pid  3697] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3697, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
./strace-static-x86_64: Process 3702 attached
[pid  3702] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3702] setpgid(0, 0)               = 0
[pid  3702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3702] <... openat resumed>)       = 3
[pid  3608] <... openat resumed>)       = 3
[pid  3702] write(3, "1000", 4 <unfinished ...>
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3702] <... write resumed>)        = 4
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3702] close(3 <unfinished ...>
[pid  3608] close(3 <unfinished ...>
[pid  3702] <... close resumed>)        = 0
[pid  3608] <... close resumed>)        = 0
[pid  3702] mkdir("./file0", 0777 <unfinished ...>
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3702] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3702] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3608] <... clone resumed>, child_tidptr=0x5555571ae690) = 3703
[pid  3702] pipe2([3, 4], 0)            = 0
[pid  3702] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,"./strace-static-x86_64: Process 3703 attached
 <unfinished ...>
[pid  3703] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3703] setpgid(0, 0)               = 0
[pid  3703] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3703] write(3, "1000", 4)         = 4
[pid  3703] close(3)                    = 0
[pid  3703] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3703] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3703] pipe2([3, 4], 0)            = 0
[pid  3703] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3696] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3696] exit_group(0)               = ?
[pid  3696] +++ exited with 0 +++
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3696, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3605] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3704
./strace-static-x86_64: Process 3704 attached
[pid  3704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3704] setpgid(0, 0 <unfinished ...>
[pid  3698] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3704] <... setpgid resumed>)      = 0
[pid  3704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3698] exit_group(0 <unfinished ...>
[pid  3704] <... openat resumed>)       = 3
[pid  3704] write(3, "1000", 4 <unfinished ...>
[pid  3698] <... exit_group resumed>)   = ?
[pid  3704] <... write resumed>)        = 4
[pid  3704] close(3)                    = 0
[pid  3704] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3704] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3698] +++ exited with 0 +++
[pid  3704] pipe2([3, 4], 0)            = 0
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3698, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3704] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3607] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3607] close(3)                    = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3705
./strace-static-x86_64: Process 3705 attached
[pid  3705] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3705] setpgid(0, 0)               = 0
[pid  3705] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3705] write(3, "1000", 4)         = 4
[pid  3705] close(3)                    = 0
[pid  3705] mkdir("./file0", 0777 <unfinished ...>
[pid  3700] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3705] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3700] exit_group(0 <unfinished ...>
[pid  3705] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3700] <... exit_group resumed>)   = ?
[pid  3705] pipe2( <unfinished ...>
[pid  3700] +++ exited with 0 +++
[pid  3705] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3705] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3700, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3604] close(3)                    = 0
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3706
[pid  3703] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3703] exit_group(0)               = ?
[pid  3703] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3703, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
./strace-static-x86_64: Process 3706 attached
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3 <unfinished ...>
[pid  3706] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3608] <... close resumed>)        = 0
[pid  3706] <... prctl resumed>)        = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3707 attached
 <unfinished ...>
[pid  3706] setpgid(0, 0 <unfinished ...>
[pid  3707] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3706] <... setpgid resumed>)      = 0
[pid  3608] <... clone resumed>, child_tidptr=0x5555571ae690) = 3707
[pid  3707] <... prctl resumed>)        = 0
[pid  3706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3707] setpgid(0, 0 <unfinished ...>
[pid  3706] write(3, "1000", 4)         = 4
[pid  3707] <... setpgid resumed>)      = 0
[pid  3706] close(3)                    = 0
[pid  3707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3706] mkdir("./file0", 0777 <unfinished ...>
[pid  3707] <... openat resumed>)       = 3
[pid  3706] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3707] write(3, "1000", 4 <unfinished ...>
[pid  3706] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3702] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3702] exit_group(0)               = ?
[pid  3702] +++ exited with 0 +++
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3702, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3606] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3707] <... write resumed>)        = 4
[pid  3707] close(3 <unfinished ...>
[pid  3606] <... restart_syscall resumed>) = 0
[pid  3707] <... close resumed>)        = 0
[pid  3707] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3707] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3606] <... openat resumed>)       = 3
[pid  3707] pipe2( <unfinished ...>
[pid  3706] pipe2( <unfinished ...>
[pid  3606] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3707] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3706] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3606] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3707] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3606] close(3)                    = 0
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3708
./strace-static-x86_64: Process 3708 attached
[pid  3706] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3701] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3701] exit_group(0)               = ?
[pid  3701] +++ exited with 0 +++
[pid  3708] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3701, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3708] <... prctl resumed>)        = 0
[pid  3708] setpgid(0, 0)               = 0
[pid  3708] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3708] write(3, "1000", 4 <unfinished ...>
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3708] <... write resumed>)        = 4
[pid  3610] <... openat resumed>)       = 3
[pid  3708] close(3 <unfinished ...>
[pid  3610] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3708] <... close resumed>)        = 0
[pid  3610] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3708] mkdir("./file0", 0777 <unfinished ...>
[pid  3610] close(3 <unfinished ...>
[pid  3708] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3610] <... close resumed>)        = 0
[pid  3708] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3708] pipe2([3, 4], 0)            = 0
[pid  3704] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3610] <... clone resumed>, child_tidptr=0x5555571ae690) = 3709
[pid  3708] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3704] exit_group(0./strace-static-x86_64: Process 3709 attached
 <unfinished ...>
[pid  3709] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3709] setpgid(0, 0)               = 0
[pid  3709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3709] write(3, "1000", 4)         = 4
[pid  3709] close(3)                    = 0
[pid  3709] mkdir("./file0", 0777 <unfinished ...>
[pid  3704] <... exit_group resumed>)   = ?
[pid  3709] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3709] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3704] +++ exited with 0 +++
[pid  3709] pipe2([3, 4], 0)            = 0
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3704, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3709] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3705] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3705] exit_group(0 <unfinished ...>
[pid  3605] <... clone resumed>, child_tidptr=0x5555571ae690) = 3710
./strace-static-x86_64: Process 3710 attached
[pid  3705] <... exit_group resumed>)   = ?
[pid  3710] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3705] +++ exited with 0 +++
[pid  3710] <... prctl resumed>)        = 0
[pid  3710] setpgid(0, 0)               = 0
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3705, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3710] <... openat resumed>)       = 3
[pid  3607] <... openat resumed>)       = 3
[pid  3710] write(3, "1000", 4 <unfinished ...>
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3607] close(3)                    = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3711
./strace-static-x86_64: Process 3711 attached
[pid  3711] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3711] setpgid(0, 0 <unfinished ...>
[pid  3710] <... write resumed>)        = 4
[pid  3711] <... setpgid resumed>)      = 0
[pid  3710] close(3 <unfinished ...>
[pid  3711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3710] <... close resumed>)        = 0
[pid  3711] <... openat resumed>)       = 3
[pid  3711] write(3, "1000", 4)         = 4
[pid  3711] close(3)                    = 0
[pid  3711] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3711] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3711] pipe2([3, 4], 0)            = 0
[pid  3711] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3710] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3707] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3706] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3710] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3707] exit_group(0 <unfinished ...>
[pid  3706] exit_group(0 <unfinished ...>
[pid  3710] pipe2( <unfinished ...>
[pid  3707] <... exit_group resumed>)   = ?
[pid  3706] <... exit_group resumed>)   = ?
[pid  3710] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3707] +++ exited with 0 +++
[pid  3706] +++ exited with 0 +++
[pid  3710] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3706, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3604] close(3)                    = 0
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3707, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3604] <... clone resumed>, child_tidptr=0x5555571ae690) = 3712
./strace-static-x86_64: Process 3712 attached
[pid  3712] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3712] setpgid(0, 0)               = 0
[pid  3712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3608] <... openat resumed>)       = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3712] <... openat resumed>)       = 3
[pid  3712] write(3, "1000", 4)         = 4
[pid  3712] close(3)                    = 0
[pid  3608] <... clone resumed>, child_tidptr=0x5555571ae690) = 3713
[pid  3712] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3709] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3712] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3712] pipe2([3, 4], 0)            = 0
[pid  3709] exit_group(0 <unfinished ...>
[pid  3712] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3709] <... exit_group resumed>)   = ?
[pid  3709] +++ exited with 0 +++
./strace-static-x86_64: Process 3713 attached
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3709, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3714
[pid  3713] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3713] setpgid(0, 0./strace-static-x86_64: Process 3714 attached
)               = 0
[pid  3714] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3714] <... prctl resumed>)        = 0
[pid  3714] setpgid(0, 0)               = 0
[pid  3713] <... openat resumed>)       = 3
[pid  3714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3713] write(3, "1000", 4 <unfinished ...>
[pid  3714] <... openat resumed>)       = 3
[pid  3713] <... write resumed>)        = 4
[pid  3714] write(3, "1000", 4 <unfinished ...>
[pid  3713] close(3 <unfinished ...>
[pid  3714] <... write resumed>)        = 4
[pid  3714] close(3 <unfinished ...>
[pid  3713] <... close resumed>)        = 0
[pid  3714] <... close resumed>)        = 0
[pid  3714] mkdir("./file0", 0777 <unfinished ...>
[pid  3713] mkdir("./file0", 0777 <unfinished ...>
[pid  3708] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3714] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3714] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3713] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3708] exit_group(0 <unfinished ...>
[pid  3714] pipe2([3, 4], 0)            = 0
[pid  3713] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3708] <... exit_group resumed>)   = ?
[pid  3714] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3713] pipe2([3, 4], 0)            = 0
[pid  3713] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3708] +++ exited with 0 +++
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3708, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3606] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3606] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3606] close(3)                    = 0
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3715
./strace-static-x86_64: Process 3715 attached
[pid  3715] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3715] setpgid(0, 0)               = 0
[pid  3715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3715] write(3, "1000", 4)         = 4
[pid  3715] close(3)                    = 0
[pid  3715] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3715] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3715] pipe2([3, 4], 0)            = 0
[pid  3715] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3711] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3711] exit_group(0)               = ?
[pid  3711] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3711, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3607] close(3)                    = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3716
./strace-static-x86_64: Process 3716 attached
[pid  3716] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3716] setpgid(0, 0)               = 0
[pid  3716] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3716] write(3, "1000", 4)         = 4
[pid  3716] close(3)                    = 0
[pid  3716] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3716] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3716] pipe2([3, 4], 0)            = 0
[pid  3716] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3713] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3713] exit_group(0)               = ?
[pid  3713] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3713, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3715] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3715] exit_group(0)               = ?
[pid  3715] +++ exited with 0 +++
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3715, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3606] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3608] close(3)                    = 0
[pid  3606] <... restart_syscall resumed>) = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3717
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3606] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3606] close(3)                    = 0
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3718
./strace-static-x86_64: Process 3718 attached
[pid  3718] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3718] setpgid(0, 0)               = 0
[pid  3718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3718] write(3, "1000", 4)         = 4
[pid  3718] close(3)                    = 0
[pid  3718] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3718] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3718] pipe2([3, 4], 0)            = 0
[pid  3718] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,"./strace-static-x86_64: Process 3717 attached
 <unfinished ...>
[pid  3717] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3717] setpgid(0, 0)               = 0
[pid  3717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3717] write(3, "1000", 4)         = 4
[pid  3717] close(3)                    = 0
[pid  3717] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3717] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3717] pipe2([3, 4], 0)            = 0
[pid  3717] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3710] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3710] exit_group(0)               = ?
[pid  3710] +++ exited with 0 +++
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3710, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3719
./strace-static-x86_64: Process 3719 attached
[pid  3719] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3719] setpgid(0, 0 <unfinished ...>
[pid  3714] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3714] exit_group(0)               = ?
[pid  3714] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3714, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3719] <... setpgid resumed>)      = 0
[pid  3610] <... clone resumed>, child_tidptr=0x5555571ae690) = 3720
[pid  3719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3719] write(3, "1000", 4)         = 4
./strace-static-x86_64: Process 3720 attached
[pid  3720] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3719] close(3 <unfinished ...>
[pid  3720] <... prctl resumed>)        = 0
[pid  3719] <... close resumed>)        = 0
[pid  3720] setpgid(0, 0 <unfinished ...>
[pid  3719] mkdir("./file0", 0777 <unfinished ...>
[pid  3720] <... setpgid resumed>)      = 0
[pid  3719] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3720] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3719] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3720] <... openat resumed>)       = 3
[pid  3719] pipe2( <unfinished ...>
[pid  3720] write(3, "1000", 4 <unfinished ...>
[pid  3719] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3720] <... write resumed>)        = 4
[pid  3719] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3720] close(3)                    = 0
[pid  3720] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3720] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3720] pipe2([3, 4], 0)            = 0
[pid  3720] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3712] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3712] exit_group(0)               = ?
[pid  3712] +++ exited with 0 +++
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3712, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3604] close(3)                    = 0
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3721
[pid  3719] <... mount resumed>)        = -1 EFAULT (Bad address)
./strace-static-x86_64: Process 3721 attached
[pid  3719] exit_group(0)               = ?
[pid  3721] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3719] +++ exited with 0 +++
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3719, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3722
[pid  3721] <... prctl resumed>)        = 0
[pid  3721] setpgid(0, 0)               = 0
[pid  3721] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3721] write(3, "1000", 4)         = 4
[pid  3721] close(3)                    = 0
[pid  3721] mkdir("./file0", 0777./strace-static-x86_64: Process 3722 attached
)      = -1 EEXIST (File exists)
[pid  3717] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3722] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3717] exit_group(0 <unfinished ...>
[pid  3722] <... prctl resumed>)        = 0
[pid  3717] <... exit_group resumed>)   = ?
[pid  3722] setpgid(0, 0 <unfinished ...>
[pid  3721] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3717] +++ exited with 0 +++
[pid  3722] <... setpgid resumed>)      = 0
[pid  3721] pipe2( <unfinished ...>
[pid  3722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3721] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3717, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3722] <... openat resumed>)       = 3
[pid  3722] write(3, "1000", 4 <unfinished ...>
[pid  3721] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3608] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3722] <... write resumed>)        = 4
[pid  3722] close(3)                    = 0
[pid  3608] <... restart_syscall resumed>) = 0
[pid  3722] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3722] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3722] pipe2( <unfinished ...>
[pid  3608] <... openat resumed>)       = 3
[pid  3722] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3722] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3723
./strace-static-x86_64: Process 3723 attached
[pid  3718] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3723] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3718] exit_group(0 <unfinished ...>
[pid  3723] <... prctl resumed>)        = 0
[pid  3718] <... exit_group resumed>)   = ?
[pid  3723] setpgid(0, 0 <unfinished ...>
[pid  3718] +++ exited with 0 +++
[pid  3723] <... setpgid resumed>)      = 0
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3718, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3723] write(3, "1000", 4 <unfinished ...>
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3723] <... write resumed>)        = 4
[pid  3606] <... openat resumed>)       = 3
[pid  3723] close(3 <unfinished ...>
[pid  3606] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3723] <... close resumed>)        = 0
[pid  3720] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3606] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3723] mkdir("./file0", 0777 <unfinished ...>
[pid  3720] exit_group(0 <unfinished ...>
[pid  3606] close(3 <unfinished ...>
[pid  3723] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3720] <... exit_group resumed>)   = ?
[pid  3606] <... close resumed>)        = 0
[pid  3723] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3720] +++ exited with 0 +++
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3723] pipe2( <unfinished ...>
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3720, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3723] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3723] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3606] <... clone resumed>, child_tidptr=0x5555571ae690) = 3724
[pid  3610] <... openat resumed>)       = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3./strace-static-x86_64: Process 3724 attached
)                    = 0
[pid  3724] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3724] <... prctl resumed>)        = 0
[pid  3724] setpgid(0, 0 <unfinished ...>
[pid  3610] <... clone resumed>, child_tidptr=0x5555571ae690) = 3725
[pid  3724] <... setpgid resumed>)      = 0
[pid  3724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3724] write(3, "1000", 4)         = 4
[pid  3724] close(3)                    = 0
[pid  3724] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3724] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3724] pipe2(./strace-static-x86_64: Process 3725 attached
[3, 4], 0)            = 0
[pid  3725] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3724] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3725] <... prctl resumed>)        = 0
[pid  3725] setpgid(0, 0)               = 0
[pid  3725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3725] write(3, "1000", 4)         = 4
[pid  3725] close(3)                    = 0
[pid  3725] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3725] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3725] pipe2([3, 4], 0)            = 0
[pid  3725] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3716] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3716] exit_group(0)               = ?
[pid  3716] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3716, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3607] close(3)                    = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3725] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3607] <... clone resumed>, child_tidptr=0x5555571ae690) = 3727
[pid  3725] exit_group(0)               = ?
[pid  3725] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3725, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
./strace-static-x86_64: Process 3727 attached
[pid  3727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3727] setpgid(0, 0 <unfinished ...>
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3727] <... setpgid resumed>)      = 0
[pid  3610] <... openat resumed>)       = 3
[pid  3727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3610] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3727] <... openat resumed>)       = 3
[pid  3610] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3727] write(3, "1000", 4 <unfinished ...>
[pid  3610] close(3)                    = 0
[pid  3727] <... write resumed>)        = 4
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3727] close(3)                    = 0
[pid  3727] mkdir("./file0", 0777 <unfinished ...>
[pid  3610] <... clone resumed>, child_tidptr=0x5555571ae690) = 3728
[pid  3727] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3727] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3727] pipe2([3, 4], 0)            = 0
./strace-static-x86_64: Process 3728 attached
[pid  3727] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3728] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3728] setpgid(0, 0)               = 0
[pid  3728] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3728] write(3, "1000", 4)         = 4
[pid  3728] close(3)                    = 0
[pid  3728] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3728] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3728] pipe2([3, 4], 0)            = 0
[pid  3728] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3721] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3721] exit_group(0)               = ?
[pid  3721] +++ exited with 0 +++
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3721, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3604] close(3)                    = 0
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3729
./strace-static-x86_64: Process 3729 attached
[pid  3729] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3729] setpgid(0, 0)               = 0
[pid  3729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3724] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3729] <... openat resumed>)       = 3
[pid  3724] exit_group(0 <unfinished ...>
[pid  3729] write(3, "1000", 4)         = 4
[pid  3724] <... exit_group resumed>)   = ?
[pid  3729] close(3)                    = 0
[pid  3729] mkdir("./file0", 0777 <unfinished ...>
[pid  3724] +++ exited with 0 +++
[pid  3729] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3729] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3724, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3729] pipe2( <unfinished ...>
[pid  3606] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3729] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3606] <... restart_syscall resumed>) = 0
[pid  3729] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3606] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3606] close(3)                    = 0
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3730
./strace-static-x86_64: Process 3730 attached
[pid  3730] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3730] setpgid(0, 0)               = 0
[pid  3730] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3730] write(3, "1000", 4)         = 4
[pid  3730] close(3)                    = 0
[pid  3730] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3730] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3730] pipe2([3, 4], 0)            = 0
[pid  3723] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3730] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3723] exit_group(0)               = ?
[pid  3723] +++ exited with 0 +++
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3723, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3722] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3608] <... clone resumed>, child_tidptr=0x5555571ae690) = 3731
[pid  3722] exit_group(0)               = ?
./strace-static-x86_64: Process 3731 attached
[pid  3722] +++ exited with 0 +++
[pid  3731] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3722, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3731] setpgid(0, 0 <unfinished ...>
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3731] <... setpgid resumed>)      = 0
[pid  3605] <... openat resumed>)       = 3
[pid  3731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3605] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3731] <... openat resumed>)       = 3
[pid  3605] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3731] write(3, "1000", 4 <unfinished ...>
[pid  3605] close(3 <unfinished ...>
[pid  3731] <... write resumed>)        = 4
[pid  3605] <... close resumed>)        = 0
[pid  3731] close(3 <unfinished ...>
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3731] <... close resumed>)        = 0
[pid  3731] mkdir("./file0", 0777 <unfinished ...>
[pid  3605] <... clone resumed>, child_tidptr=0x5555571ae690) = 3732
[pid  3731] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3731] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3731] pipe2([3, 4], 0)            = 0
[pid  3731] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,"./strace-static-x86_64: Process 3732 attached
 <unfinished ...>
[pid  3732] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3732] setpgid(0, 0)               = 0
[pid  3732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3732] write(3, "1000", 4)         = 4
[pid  3732] close(3)                    = 0
[pid  3732] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3732] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3732] pipe2([3, 4], 0)            = 0
[pid  3732] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3729] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3729] exit_group(0)               = ?
[pid  3729] +++ exited with 0 +++
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3729, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3604] close(3)                    = 0
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3733
./strace-static-x86_64: Process 3733 attached
[pid  3733] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3733] setpgid(0, 0)               = 0
[pid  3733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3733] write(3, "1000", 4)         = 4
[pid  3733] close(3)                    = 0
[pid  3733] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3733] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3733] pipe2([3, 4], 0)            = 0
[pid  3733] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3727] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3727] exit_group(0)               = ?
[pid  3730] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3730] exit_group(0)               = ?
[pid  3730] +++ exited with 0 +++
[pid  3727] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3727, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3730, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3607] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3606] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3607] <... restart_syscall resumed>) = 0
[pid  3606] <... restart_syscall resumed>) = 0
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3607] <... openat resumed>)       = 3
[pid  3606] <... openat resumed>)       = 3
[pid  3607] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3606] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3607] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3606] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3607] close(3 <unfinished ...>
[pid  3606] close(3 <unfinished ...>
[pid  3607] <... close resumed>)        = 0
[pid  3606] <... close resumed>)        = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3607] <... clone resumed>, child_tidptr=0x5555571ae690) = 3734
[pid  3606] <... clone resumed>, child_tidptr=0x5555571ae690) = 3735
./strace-static-x86_64: Process 3735 attached
[pid  3735] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3735] setpgid(0, 0)               = 0
[pid  3735] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 3734 attached
 <unfinished ...>
[pid  3728] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3735] <... openat resumed>)       = 3
[pid  3728] exit_group(0 <unfinished ...>
[pid  3735] write(3, "1000", 4 <unfinished ...>
[pid  3728] <... exit_group resumed>)   = ?
[pid  3735] <... write resumed>)        = 4
[pid  3735] close(3)                    = 0
[pid  3728] +++ exited with 0 +++
[pid  3735] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3728, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3735] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3734] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3610] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3734] <... prctl resumed>)        = 0
[pid  3610] <... restart_syscall resumed>) = 0
[pid  3734] setpgid(0, 0 <unfinished ...>
[pid  3735] pipe2( <unfinished ...>
[pid  3734] <... setpgid resumed>)      = 0
[pid  3734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3735] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3734] <... openat resumed>)       = 3
[pid  3610] <... openat resumed>)       = 3
[pid  3734] write(3, "1000", 4 <unfinished ...>
[pid  3610] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3735] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3734] <... write resumed>)        = 4
[pid  3610] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3734] close(3 <unfinished ...>
[pid  3610] close(3 <unfinished ...>
[pid  3734] <... close resumed>)        = 0
[pid  3610] <... close resumed>)        = 0
[pid  3734] mkdir("./file0", 0777 <unfinished ...>
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3734] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3734] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3610] <... clone resumed>, child_tidptr=0x5555571ae690) = 3736
[pid  3734] pipe2([3, 4], 0)            = 0
[pid  3734] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,"./strace-static-x86_64: Process 3736 attached
 <unfinished ...>
[pid  3736] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3731] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3736] <... prctl resumed>)        = 0
[pid  3736] setpgid(0, 0 <unfinished ...>
[pid  3731] exit_group(0 <unfinished ...>
[pid  3736] <... setpgid resumed>)      = 0
[pid  3731] <... exit_group resumed>)   = ?
[pid  3736] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3736] write(3, "1000", 4)         = 4
[pid  3736] close(3)                    = 0
[pid  3736] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3736] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3736] pipe2([3, 4], 0)            = 0
[pid  3731] +++ exited with 0 +++
[pid  3736] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3731, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3608] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3737
./strace-static-x86_64: Process 3737 attached
[pid  3737] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3737] setpgid(0, 0)               = 0
[pid  3737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3737] write(3, "1000", 4)         = 4
[pid  3737] close(3)                    = 0
[pid  3737] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3737] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3737] pipe2([3, 4], 0)            = 0
[pid  3737] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3732] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3732] exit_group(0)               = ?
[pid  3732] +++ exited with 0 +++
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3732, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3738
./strace-static-x86_64: Process 3738 attached
[pid  3738] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3738] setpgid(0, 0)               = 0
[pid  3738] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3738] write(3, "1000", 4)         = 4
[pid  3738] close(3)                    = 0
[pid  3738] mkdir("./file0", 0777 <unfinished ...>
[pid  3733] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3738] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3738] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3733] exit_group(0 <unfinished ...>
[pid  3738] pipe2([3, 4], 0)            = 0
[pid  3733] <... exit_group resumed>)   = ?
[pid  3738] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3733] +++ exited with 0 +++
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3733, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3604] close(3)                    = 0
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3735] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3604] <... clone resumed>, child_tidptr=0x5555571ae690) = 3739
./strace-static-x86_64: Process 3739 attached
[pid  3735] exit_group(0)               = ?
[pid  3739] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3739] setpgid(0, 0 <unfinished ...>
[pid  3735] +++ exited with 0 +++
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3735, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3739] <... setpgid resumed>)      = 0
[pid  3606] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3606] <... restart_syscall resumed>) = 0
[pid  3739] <... openat resumed>)       = 3
[pid  3739] write(3, "1000", 4)         = 4
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3739] close(3)                    = 0
[pid  3606] <... openat resumed>)       = 3
[pid  3606] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3739] mkdir("./file0", 0777 <unfinished ...>
[pid  3606] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3739] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3737] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3606] close(3 <unfinished ...>
[pid  3737] exit_group(0 <unfinished ...>
[pid  3606] <... close resumed>)        = 0
[pid  3739] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3737] <... exit_group resumed>)   = ?
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3739] pipe2( <unfinished ...>
[pid  3737] +++ exited with 0 +++
[pid  3739] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3606] <... clone resumed>, child_tidptr=0x5555571ae690) = 3740
[pid  3739] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3737, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
./strace-static-x86_64: Process 3740 attached
[pid  3740] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3608] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3740] <... prctl resumed>)        = 0
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3740] setpgid(0, 0 <unfinished ...>
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3740] <... setpgid resumed>)      = 0
[pid  3608] close(3 <unfinished ...>
[pid  3740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3608] <... close resumed>)        = 0
[pid  3740] <... openat resumed>)       = 3
[pid  3740] write(3, "1000", 4)         = 4
[pid  3740] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3740] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3608] <... clone resumed>, child_tidptr=0x5555571ae690) = 3741
[pid  3740] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3740] pipe2([3, 4], 0)            = 0
[pid  3740] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3738] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3738] exit_group(0)               = ?
./strace-static-x86_64: Process 3741 attached
[pid  3738] +++ exited with 0 +++
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3738, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3741] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3605] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3741] <... prctl resumed>)        = 0
[pid  3605] close(3 <unfinished ...>
[pid  3741] setpgid(0, 0 <unfinished ...>
[pid  3605] <... close resumed>)        = 0
[pid  3741] <... setpgid resumed>)      = 0
[pid  3741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3741] <... openat resumed>)       = 3
[pid  3741] write(3, "1000", 4)         = 4
[pid  3741] close(3)                    = 0
[pid  3741] mkdir("./file0", 0777 <unfinished ...>
[pid  3605] <... clone resumed>, child_tidptr=0x5555571ae690) = 3742
[pid  3741] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3741] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3741] pipe2([3, 4], 0)            = 0
[pid  3741] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3736] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3736] exit_group(0)               = ?
./strace-static-x86_64: Process 3742 attached
[pid  3742] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3736] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3736, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3742] <... prctl resumed>)        = 0
[pid  3742] setpgid(0, 0 <unfinished ...>
[pid  3610] <... restart_syscall resumed>) = 0
[pid  3742] <... setpgid resumed>)      = 0
[pid  3742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3742] write(3, "1000", 4 <unfinished ...>
[pid  3610] <... openat resumed>)       = 3
[pid  3742] <... write resumed>)        = 4
[pid  3610] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3742] close(3)                    = 0
[pid  3610] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3742] mkdir("./file0", 0777 <unfinished ...>
[pid  3610] close(3 <unfinished ...>
[pid  3742] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3610] <... close resumed>)        = 0
[pid  3742] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3742] pipe2( <unfinished ...>
[pid  3610] <... clone resumed>, child_tidptr=0x5555571ae690) = 3743
[pid  3742] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3742] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,"./strace-static-x86_64: Process 3743 attached
 <unfinished ...>
[pid  3743] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3743] setpgid(0, 0)               = 0
[pid  3743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3743] write(3, "1000", 4 <unfinished ...>
[pid  3734] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3743] <... write resumed>)        = 4
[pid  3743] close(3)                    = 0
[pid  3743] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3743] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3743] pipe2( <unfinished ...>
[pid  3734] exit_group(0 <unfinished ...>
[pid  3743] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3734] <... exit_group resumed>)   = ?
[pid  3743] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3734] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3734, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3607] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3607] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3742] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3742] exit_group(0)               = ?
[pid  3742] +++ exited with 0 +++
[pid  3607] close(3)                    = 0
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3742, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3739] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3607] <... clone resumed>, child_tidptr=0x5555571ae690) = 3744
./strace-static-x86_64: Process 3744 attached
[pid  3744] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3744] setpgid(0, 0 <unfinished ...>
[pid  3739] exit_group(0)               = ?
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3739] +++ exited with 0 +++
[pid  3605] <... openat resumed>)       = 3
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3739, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3 <unfinished ...>
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3605] <... close resumed>)        = 0
[pid  3604] <... openat resumed>)       = 3
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] <... clone resumed>, child_tidptr=0x5555571ae690) = 3745
[pid  3604] close(3 <unfinished ...>
[pid  3744] <... setpgid resumed>)      = 0
[pid  3744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3740] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3604] <... close resumed>)        = 0
./strace-static-x86_64: Process 3745 attached
[pid  3744] <... openat resumed>)       = 3
[pid  3741] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3740] exit_group(0 <unfinished ...>
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3745] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3741] exit_group(0 <unfinished ...>
[pid  3740] <... exit_group resumed>)   = ?
[pid  3745] <... prctl resumed>)        = 0
[pid  3741] <... exit_group resumed>)   = ?
[pid  3740] +++ exited with 0 +++
[pid  3604] <... clone resumed>, child_tidptr=0x5555571ae690) = 3746
[pid  3745] setpgid(0, 0 <unfinished ...>
[pid  3744] write(3, "1000", 4 <unfinished ...>
[pid  3741] +++ exited with 0 +++
[pid  3745] <... setpgid resumed>)      = 0
[pid  3744] <... write resumed>)        = 4
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3741, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3740, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3744] close(3 <unfinished ...>
[pid  3606] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3745] <... openat resumed>)       = 3
[pid  3744] <... close resumed>)        = 0
[pid  3606] <... restart_syscall resumed>) = 0
[pid  3745] write(3, "1000", 4 <unfinished ...>
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3745] <... write resumed>)        = 4
[pid  3744] mkdir("./file0", 0777 <unfinished ...>
[pid  3608] <... openat resumed>)       = 3
[pid  3745] close(3 <unfinished ...>
[pid  3744] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR./strace-static-x86_64: Process 3746 attached
 <unfinished ...>
[pid  3745] <... close resumed>)        = 0
[pid  3744] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3606] <... openat resumed>)       = 3
[pid  3746] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3745] mkdir("./file0", 0777 <unfinished ...>
[pid  3608] close(3 <unfinished ...>
[pid  3606] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3744] pipe2( <unfinished ...>
[pid  3746] <... prctl resumed>)        = 0
[pid  3745] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3608] <... close resumed>)        = 0
[pid  3606] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3746] setpgid(0, 0 <unfinished ...>
[pid  3745] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3744] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3606] close(3 <unfinished ...>
[pid  3746] <... setpgid resumed>)      = 0
[pid  3745] pipe2( <unfinished ...>
[pid  3606] <... close resumed>)        = 0
[pid  3746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3745] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3744] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3746] <... openat resumed>)       = 3
[pid  3745] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3608] <... clone resumed>, child_tidptr=0x5555571ae690) = 3747
[pid  3746] write(3, "1000", 4 <unfinished ...>
[pid  3606] <... clone resumed>, child_tidptr=0x5555571ae690) = 3748
./strace-static-x86_64: Process 3747 attached
[pid  3746] <... write resumed>)        = 4
[pid  3747] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3746] close(3 <unfinished ...>
[pid  3747] <... prctl resumed>)        = 0
[pid  3746] <... close resumed>)        = 0
[pid  3747] setpgid(0, 0 <unfinished ...>
[pid  3746] mkdir("./file0", 0777 <unfinished ...>
[pid  3747] <... setpgid resumed>)      = 0
[pid  3746] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3746] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3747] <... openat resumed>)       = 3
[pid  3746] pipe2( <unfinished ...>
[pid  3747] write(3, "1000", 4 <unfinished ...>
[pid  3746] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3747] <... write resumed>)        = 4
[pid  3746] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3747] close(3)                    = 0
[pid  3747] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3747] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3747] pipe2([3, 4], 0)            = 0
[pid  3747] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,"./strace-static-x86_64: Process 3748 attached
 <unfinished ...>
[pid  3748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3748] setpgid(0, 0)               = 0
[pid  3743] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3743] exit_group(0 <unfinished ...>
[pid  3748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3743] <... exit_group resumed>)   = ?
[pid  3743] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3743, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3748] <... openat resumed>)       = 3
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3748] write(3, "1000", 4 <unfinished ...>
[pid  3610] <... openat resumed>)       = 3
[pid  3748] <... write resumed>)        = 4
[pid  3610] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3748] close(3 <unfinished ...>
[pid  3610] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3748] <... close resumed>)        = 0
[pid  3610] close(3 <unfinished ...>
[pid  3748] mkdir("./file0", 0777 <unfinished ...>
[pid  3610] <... close resumed>)        = 0
[pid  3748] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3748] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3610] <... clone resumed>, child_tidptr=0x5555571ae690) = 3749
[pid  3748] pipe2([3, 4], 0)            = 0
./strace-static-x86_64: Process 3749 attached
[pid  3748] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3749] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3749] setpgid(0, 0)               = 0
[pid  3749] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3749] write(3, "1000", 4)         = 4
[pid  3749] close(3)                    = 0
[pid  3749] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3749] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3749] pipe2([3, 4], 0)            = 0
[pid  3749] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3746] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3746] exit_group(0)               = ?
[pid  3746] +++ exited with 0 +++
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3746, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3745] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3745] exit_group(0)               = ?
[pid  3745] +++ exited with 0 +++
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3745, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3604] <... openat resumed>)       = 3
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3604] close(3 <unfinished ...>
[pid  3605] <... openat resumed>)       = 3
[pid  3604] <... close resumed>)        = 0
[pid  3605] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3605] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3605] close(3 <unfinished ...>
[pid  3604] <... clone resumed>, child_tidptr=0x5555571ae690) = 3750
[pid  3605] <... close resumed>)        = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3751
./strace-static-x86_64: Process 3751 attached
[pid  3751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3751] setpgid(0, 0)               = 0
[pid  3751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3751] write(3, "1000", 4)         = 4
[pid  3751] close(3)                    = 0
[pid  3751] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3751] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3751] pipe2([3, 4], 0)            = 0
./strace-static-x86_64: Process 3750 attached
[pid  3751] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3744] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3750] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3744] exit_group(0 <unfinished ...>
[pid  3750] <... prctl resumed>)        = 0
[pid  3744] <... exit_group resumed>)   = ?
[pid  3744] +++ exited with 0 +++
[pid  3750] setpgid(0, 0)               = 0
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3744, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3747] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3607] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3750] <... openat resumed>)       = 3
[pid  3607] <... restart_syscall resumed>) = 0
[pid  3750] write(3, "1000", 4 <unfinished ...>
[pid  3747] exit_group(0 <unfinished ...>
[pid  3750] <... write resumed>)        = 4
[pid  3747] <... exit_group resumed>)   = ?
[pid  3750] close(3 <unfinished ...>
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3750] <... close resumed>)        = 0
[pid  3747] +++ exited with 0 +++
[pid  3607] <... openat resumed>)       = 3
[pid  3750] mkdir("./file0", 0777 <unfinished ...>
[pid  3607] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3750] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3747, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3607] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3750] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3608] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3607] close(3 <unfinished ...>
[pid  3750] pipe2( <unfinished ...>
[pid  3608] <... restart_syscall resumed>) = 0
[pid  3607] <... close resumed>)        = 0
[pid  3750] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3750] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3748] <... mount resumed>)        = -1 EFAULT (Bad address)
./strace-static-x86_64: Process 3752 attached
[pid  3749] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3748] exit_group(0 <unfinished ...>
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3607] <... clone resumed>, child_tidptr=0x5555571ae690) = 3752
[pid  3752] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3749] exit_group(0 <unfinished ...>
[pid  3748] <... exit_group resumed>)   = ?
[pid  3608] <... openat resumed>)       = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3752] <... prctl resumed>)        = 0
[pid  3749] <... exit_group resumed>)   = ?
[pid  3748] +++ exited with 0 +++
[pid  3608] <... clone resumed>, child_tidptr=0x5555571ae690) = 3753
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3748, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3606] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3752] setpgid(0, 0 <unfinished ...>
[pid  3749] +++ exited with 0 +++
[pid  3606] <... restart_syscall resumed>) = 0
[pid  3752] <... setpgid resumed>)      = 0
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3749, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3751] <... mount resumed>)        = -1 EFAULT (Bad address)
./strace-static-x86_64: Process 3753 attached
[pid  3752] <... openat resumed>)       = 3
[pid  3751] exit_group(0 <unfinished ...>
[pid  3753] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3752] write(3, "1000", 4 <unfinished ...>
[pid  3751] <... exit_group resumed>)   = ?
[pid  3750] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3753] <... prctl resumed>)        = 0
[pid  3752] <... write resumed>)        = 4
[pid  3751] +++ exited with 0 +++
[pid  3610] <... openat resumed>)       = 3
[pid  3753] setpgid(0, 0 <unfinished ...>
[pid  3752] close(3 <unfinished ...>
[pid  3750] exit_group(0 <unfinished ...>
[pid  3610] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3606] <... openat resumed>)       = 3
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3751, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3753] <... setpgid resumed>)      = 0
[pid  3752] <... close resumed>)        = 0
[pid  3750] <... exit_group resumed>)   = ?
[pid  3610] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3606] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3752] mkdir("./file0", 0777 <unfinished ...>
[pid  3750] +++ exited with 0 +++
[pid  3610] close(3 <unfinished ...>
[pid  3606] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3753] <... openat resumed>)       = 3
[pid  3752] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3610] <... close resumed>)        = 0
[pid  3606] close(3 <unfinished ...>
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3750, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3753] write(3, "1000", 4 <unfinished ...>
[pid  3752] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3606] <... close resumed>)        = 0
[pid  3604] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3753] <... write resumed>)        = 4
[pid  3752] pipe2( <unfinished ...>
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3753] close(3 <unfinished ...>
[pid  3752] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3610] <... clone resumed>, child_tidptr=0x5555571ae690) = 3754
[pid  3604] <... restart_syscall resumed>) = 0
./strace-static-x86_64: Process 3755 attached
./strace-static-x86_64: Process 3754 attached
[pid  3753] <... close resumed>)        = 0
[pid  3752] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3755] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3754] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3753] mkdir("./file0", 0777 <unfinished ...>
[pid  3606] <... clone resumed>, child_tidptr=0x5555571ae690) = 3755
[pid  3605] <... openat resumed>)       = 3
[pid  3755] <... prctl resumed>)        = 0
[pid  3754] <... prctl resumed>)        = 0
[pid  3753] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3605] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3755] setpgid(0, 0 <unfinished ...>
[pid  3754] setpgid(0, 0 <unfinished ...>
[pid  3753] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3605] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3604] <... openat resumed>)       = 3
[pid  3755] <... setpgid resumed>)      = 0
[pid  3754] <... setpgid resumed>)      = 0
[pid  3753] pipe2( <unfinished ...>
[pid  3605] close(3 <unfinished ...>
[pid  3604] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3605] <... close resumed>)        = 0
[pid  3604] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3755] <... openat resumed>)       = 3
[pid  3754] <... openat resumed>)       = 3
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3604] close(3 <unfinished ...>
[pid  3755] write(3, "1000", 4 <unfinished ...>
[pid  3754] write(3, "1000", 4 <unfinished ...>
[pid  3604] <... close resumed>)        = 0
[pid  3755] <... write resumed>)        = 4
[pid  3754] <... write resumed>)        = 4
[pid  3605] <... clone resumed>, child_tidptr=0x5555571ae690) = 3756
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3755] close(3 <unfinished ...>
[pid  3754] close(3 <unfinished ...>
[pid  3755] <... close resumed>)        = 0
[pid  3754] <... close resumed>)        = 0
[pid  3604] <... clone resumed>, child_tidptr=0x5555571ae690) = 3757
[pid  3755] mkdir("./file0", 0777 <unfinished ...>
[pid  3754] mkdir("./file0", 0777 <unfinished ...>
[pid  3755] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3754] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3755] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3754] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3753] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3755] pipe2( <unfinished ...>
[pid  3754] pipe2( <unfinished ...>
[pid  3753] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3755] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3754] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3755] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3754] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,"./strace-static-x86_64: Process 3757 attached
 <unfinished ...>
[pid  3757] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3757] setpgid(0, 0)               = 0
./strace-static-x86_64: Process 3756 attached
[pid  3757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3756] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3757] write(3, "1000", 4 <unfinished ...>
[pid  3756] <... prctl resumed>)        = 0
[pid  3757] <... write resumed>)        = 4
[pid  3756] setpgid(0, 0 <unfinished ...>
[pid  3752] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3757] close(3 <unfinished ...>
[pid  3756] <... setpgid resumed>)      = 0
[pid  3752] exit_group(0 <unfinished ...>
[pid  3757] <... close resumed>)        = 0
[pid  3756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3752] <... exit_group resumed>)   = ?
[pid  3757] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3757] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3752] +++ exited with 0 +++
[pid  3756] <... openat resumed>)       = 3
[pid  3757] pipe2( <unfinished ...>
[pid  3756] write(3, "1000", 4 <unfinished ...>
[pid  3757] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3756] <... write resumed>)        = 4
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3752, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3757] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3756] close(3 <unfinished ...>
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3756] <... close resumed>)        = 0
[pid  3607] <... openat resumed>)       = 3
[pid  3756] mkdir("./file0", 0777 <unfinished ...>
[pid  3607] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3756] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3607] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3756] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3607] close(3 <unfinished ...>
[pid  3756] pipe2( <unfinished ...>
[pid  3753] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3607] <... close resumed>)        = 0
[pid  3756] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3753] exit_group(0 <unfinished ...>
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3756] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3753] <... exit_group resumed>)   = ?
./strace-static-x86_64: Process 3758 attached
[pid  3753] +++ exited with 0 +++
[pid  3607] <... clone resumed>, child_tidptr=0x5555571ae690) = 3758
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3753, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3608] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3758] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3608] <... restart_syscall resumed>) = 0
[pid  3758] <... prctl resumed>)        = 0
[pid  3758] setpgid(0, 0)               = 0
[pid  3758] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3758] write(3, "1000", 4)         = 4
[pid  3758] close(3)                    = 0
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3758] mkdir("./file0", 0777 <unfinished ...>
[pid  3608] <... openat resumed>)       = 3
[pid  3758] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3758] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3758] pipe2( <unfinished ...>
[pid  3608] close(3 <unfinished ...>
[pid  3758] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3608] <... close resumed>)        = 0
[pid  3758] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3759
[pid  3754] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3754] exit_group(0./strace-static-x86_64: Process 3759 attached
 <unfinished ...>
[pid  3759] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3754] <... exit_group resumed>)   = ?
[pid  3759] <... prctl resumed>)        = 0
[pid  3759] setpgid(0, 0)               = 0
[pid  3759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3754] +++ exited with 0 +++
[pid  3759] <... openat resumed>)       = 3
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3754, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3759] write(3, "1000", 4)         = 4
[pid  3759] close(3 <unfinished ...>
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3759] <... close resumed>)        = 0
[pid  3610] <... openat resumed>)       = 3
[pid  3759] mkdir("./file0", 0777 <unfinished ...>
[pid  3610] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3759] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3610] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3759] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3610] close(3 <unfinished ...>
[pid  3759] pipe2( <unfinished ...>
[pid  3755] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3610] <... close resumed>)        = 0
[pid  3759] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3759] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3610] <... clone resumed>, child_tidptr=0x5555571ae690) = 3760
./strace-static-x86_64: Process 3760 attached
[pid  3760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3760] setpgid(0, 0 <unfinished ...>
[pid  3757] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3756] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3755] exit_group(0 <unfinished ...>
[pid  3760] <... setpgid resumed>)      = 0
[pid  3760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3755] <... exit_group resumed>)   = ?
[pid  3760] write(3, "1000", 4)         = 4
[pid  3760] close(3 <unfinished ...>
[pid  3755] +++ exited with 0 +++
[pid  3760] <... close resumed>)        = 0
[pid  3760] mkdir("./file0", 0777 <unfinished ...>
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3755, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3760] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3757] exit_group(0 <unfinished ...>
[pid  3606] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3760] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3757] <... exit_group resumed>)   = ?
[pid  3606] <... restart_syscall resumed>) = 0
[pid  3760] pipe2([3, 4], 0)            = 0
[pid  3760] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3756] exit_group(0)               = ?
[pid  3606] <... openat resumed>)       = 3
[pid  3758] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3757] +++ exited with 0 +++
[pid  3756] +++ exited with 0 +++
[pid  3606] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3758] exit_group(0 <unfinished ...>
[pid  3606] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3756, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3757, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3758] <... exit_group resumed>)   = ?
[pid  3606] close(3 <unfinished ...>
[pid  3758] +++ exited with 0 +++
[pid  3606] <... close resumed>)        = 0
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3758, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3761
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3605] <... openat resumed>)       = 3
[pid  3604] <... openat resumed>)       = 3
[pid  3605] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3604] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3605] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3604] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3605] close(3 <unfinished ...>
[pid  3604] close(3./strace-static-x86_64: Process 3761 attached
 <unfinished ...>
[pid  3607] <... openat resumed>)       = 3
[pid  3605] <... close resumed>)        = 0
[pid  3604] <... close resumed>)        = 0
[pid  3761] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3607] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3761] <... prctl resumed>)        = 0
[pid  3607] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3761] setpgid(0, 0 <unfinished ...>
[pid  3607] close(3 <unfinished ...>
[pid  3761] <... setpgid resumed>)      = 0
[pid  3607] <... close resumed>)        = 0
[pid  3761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3605] <... clone resumed>, child_tidptr=0x5555571ae690) = 3762
[pid  3761] <... openat resumed>)       = 3
[pid  3761] write(3, "1000", 4 <unfinished ...>
[pid  3607] <... clone resumed>, child_tidptr=0x5555571ae690) = 3764
[pid  3761] <... write resumed>)        = 4
[pid  3761] close(3)                    = 0
[pid  3761] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3761] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3761] pipe2([3, 4], 0)            = 0
[pid  3761] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3604] <... clone resumed>, child_tidptr=0x5555571ae690) = 3763
./strace-static-x86_64: Process 3764 attached
./strace-static-x86_64: Process 3763 attached
./strace-static-x86_64: Process 3762 attached
[pid  3759] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3764] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3763] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3762] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3763] <... prctl resumed>)        = 0
[pid  3762] <... prctl resumed>)        = 0
[pid  3759] exit_group(0 <unfinished ...>
[pid  3763] setpgid(0, 0 <unfinished ...>
[pid  3762] setpgid(0, 0 <unfinished ...>
[pid  3759] <... exit_group resumed>)   = ?
[pid  3763] <... setpgid resumed>)      = 0
[pid  3762] <... setpgid resumed>)      = 0
[pid  3763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3759] +++ exited with 0 +++
[pid  3763] <... openat resumed>)       = 3
[pid  3762] <... openat resumed>)       = 3
[pid  3763] write(3, "1000", 4 <unfinished ...>
[pid  3762] write(3, "1000", 4 <unfinished ...>
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3759, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3763] <... write resumed>)        = 4
[pid  3762] <... write resumed>)        = 4
[pid  3608] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3764] <... prctl resumed>)        = 0
[pid  3763] close(3 <unfinished ...>
[pid  3762] close(3 <unfinished ...>
[pid  3608] <... restart_syscall resumed>) = 0
[pid  3764] setpgid(0, 0 <unfinished ...>
[pid  3763] <... close resumed>)        = 0
[pid  3762] <... close resumed>)        = 0
[pid  3764] <... setpgid resumed>)      = 0
[pid  3763] mkdir("./file0", 0777 <unfinished ...>
[pid  3762] mkdir("./file0", 0777 <unfinished ...>
[pid  3764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3763] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3762] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3764] <... openat resumed>)       = 3
[pid  3763] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3762] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3608] <... openat resumed>)       = 3
[pid  3764] write(3, "1000", 4 <unfinished ...>
[pid  3763] pipe2( <unfinished ...>
[pid  3762] pipe2( <unfinished ...>
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3764] <... write resumed>)        = 4
[pid  3763] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3762] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3764] close(3 <unfinished ...>
[pid  3763] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3762] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3608] close(3 <unfinished ...>
[pid  3764] <... close resumed>)        = 0
[pid  3608] <... close resumed>)        = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3764] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3608] <... clone resumed>, child_tidptr=0x5555571ae690) = 3765
[pid  3764] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3764] pipe2([3, 4], 0)            = 0
[pid  3764] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,"./strace-static-x86_64: Process 3765 attached
 <unfinished ...>
[pid  3765] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3765] setpgid(0, 0)               = 0
[pid  3765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3760] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3765] <... openat resumed>)       = 3
[pid  3765] write(3, "1000", 4)         = 4
[pid  3765] close(3)                    = 0
[pid  3765] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3765] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3765] pipe2([3, 4], 0)            = 0
[pid  3765] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3760] exit_group(0)               = ?
[pid  3760] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3760, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3761] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3610] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3761] exit_group(0 <unfinished ...>
[pid  3610] close(3 <unfinished ...>
[pid  3761] <... exit_group resumed>)   = ?
[pid  3610] <... close resumed>)        = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3761] +++ exited with 0 +++
./strace-static-x86_64: Process 3766 attached
[pid  3610] <... clone resumed>, child_tidptr=0x5555571ae690) = 3766
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3761, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3766] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3766] setpgid(0, 0)               = 0
[pid  3766] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3606] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3606] close(3)                    = 0
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3766] <... openat resumed>)       = 3
[pid  3766] write(3, "1000", 4 <unfinished ...>
[pid  3606] <... clone resumed>, child_tidptr=0x5555571ae690) = 3767
[pid  3766] <... write resumed>)        = 4
[pid  3765] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3766] close(3 <unfinished ...>
[pid  3765] exit_group(0 <unfinished ...>
[pid  3766] <... close resumed>)        = 0
[pid  3765] <... exit_group resumed>)   = ?
[pid  3766] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3765] +++ exited with 0 +++
[pid  3766] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
./strace-static-x86_64: Process 3767 attached
[pid  3766] pipe2( <unfinished ...>
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3765, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3767] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3767] setpgid(0, 0)               = 0
[pid  3767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3767] write(3, "1000", 4)         = 4
[pid  3767] close(3)                    = 0
[pid  3767] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3767] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3766] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3763] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3767] pipe2([3, 4], 0)            = 0
[pid  3767] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3762] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3762] exit_group(0)               = ?
[pid  3766] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3762] +++ exited with 0 +++
[pid  3608] <... openat resumed>)       = 3
[pid  3608] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3762, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3763] exit_group(0 <unfinished ...>
[pid  3608] close(3 <unfinished ...>
[pid  3605] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3763] <... exit_group resumed>)   = ?
[pid  3608] <... close resumed>)        = 0
[pid  3605] <... restart_syscall resumed>) = 0
[pid  3763] +++ exited with 0 +++
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3768
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3763, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3605] <... openat resumed>)       = 3
[pid  3604] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3605] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3604] <... restart_syscall resumed>) = 0
[pid  3605] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 3768 attached
 <unfinished ...>
[pid  3768] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3604] <... openat resumed>)       = 3
[pid  3605] <... clone resumed>, child_tidptr=0x5555571ae690) = 3769
[pid  3604] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3604] close(3 <unfinished ...>
[pid  3768] <... prctl resumed>)        = 0
[pid  3604] <... close resumed>)        = 0
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3768] setpgid(0, 0)               = 0
[pid  3604] <... clone resumed>, child_tidptr=0x5555571ae690) = 3770
[pid  3768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3768] write(3, "1000", 4)         = 4
[pid  3768] close(3./strace-static-x86_64: Process 3769 attached
)                    = 0
[pid  3769] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3768] mkdir("./file0", 0777 <unfinished ...>
[pid  3769] <... prctl resumed>)        = 0
[pid  3768] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3769] setpgid(0, 0 <unfinished ...>
[pid  3768] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3769] <... setpgid resumed>)      = 0
[pid  3768] pipe2( <unfinished ...>
[pid  3769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3768] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3769] <... openat resumed>)       = 3
[pid  3768] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3769] write(3, "1000", 4)         = 4
[pid  3769] close(3)                    = 0
[pid  3769] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3769] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
./strace-static-x86_64: Process 3770 attached
[pid  3769] pipe2( <unfinished ...>
[pid  3764] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3769] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3764] exit_group(0 <unfinished ...>
[pid  3770] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3769] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3764] <... exit_group resumed>)   = ?
[pid  3770] <... prctl resumed>)        = 0
[pid  3764] +++ exited with 0 +++
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3764, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3770] setpgid(0, 0 <unfinished ...>
[pid  3607] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3770] <... setpgid resumed>)      = 0
[pid  3607] <... restart_syscall resumed>) = 0
[pid  3770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3770] <... openat resumed>)       = 3
[pid  3607] <... openat resumed>)       = 3
[pid  3770] write(3, "1000", 4 <unfinished ...>
[pid  3607] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3770] <... write resumed>)        = 4
[pid  3607] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3770] close(3)                    = 0
[pid  3607] close(3 <unfinished ...>
[pid  3770] mkdir("./file0", 0777 <unfinished ...>
[pid  3607] <... close resumed>)        = 0
[pid  3770] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3770] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3770] pipe2( <unfinished ...>
[pid  3607] <... clone resumed>, child_tidptr=0x5555571ae690) = 3771
[pid  3770] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3770] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,"./strace-static-x86_64: Process 3771 attached
 <unfinished ...>
[pid  3771] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3771] setpgid(0, 0)               = 0
[pid  3771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3771] write(3, "1000", 4 <unfinished ...>
[pid  3767] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3771] <... write resumed>)        = 4
[pid  3771] close(3)                    = 0
[pid  3767] exit_group(0)               = ?
[pid  3771] mkdir("./file0", 0777 <unfinished ...>
[pid  3767] +++ exited with 0 +++
[pid  3771] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3767, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3771] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3771] pipe2([3, 4], 0)            = 0
[pid  3771] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3606] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3606] close(3)                    = 0
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3772
./strace-static-x86_64: Process 3772 attached
[pid  3766] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3772] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3766] exit_group(0 <unfinished ...>
[pid  3772] <... prctl resumed>)        = 0
[pid  3766] <... exit_group resumed>)   = ?
[pid  3772] setpgid(0, 0 <unfinished ...>
[pid  3766] +++ exited with 0 +++
[pid  3772] <... setpgid resumed>)      = 0
[pid  3772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3772] write(3, "1000", 4)         = 4
[pid  3772] close(3)                    = 0
[pid  3772] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3772] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3772] pipe2( <unfinished ...>
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3766, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3772] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3772] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3773
[pid  3769] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3769] exit_group(0./strace-static-x86_64: Process 3773 attached
)               = ?
[pid  3768] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3773] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3769] +++ exited with 0 +++
[pid  3768] exit_group(0 <unfinished ...>
[pid  3773] <... prctl resumed>)        = 0
[pid  3768] <... exit_group resumed>)   = ?
[pid  3773] setpgid(0, 0 <unfinished ...>
[pid  3768] +++ exited with 0 +++
[pid  3773] <... setpgid resumed>)      = 0
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3768, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3608] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3773] <... openat resumed>)       = 3
[pid  3608] <... restart_syscall resumed>) = 0
[pid  3773] write(3, "1000", 4)         = 4
[pid  3773] close(3 <unfinished ...>
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3773] <... close resumed>)        = 0
[pid  3608] <... openat resumed>)       = 3
[pid  3773] mkdir("./file0", 0777 <unfinished ...>
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3773] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3773] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3608] close(3 <unfinished ...>
[pid  3773] pipe2( <unfinished ...>
[pid  3608] <... close resumed>)        = 0
[pid  3773] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3773] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3608] <... clone resumed>, child_tidptr=0x5555571ae690) = 3774
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3769, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
./strace-static-x86_64: Process 3774 attached
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3774] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3775
[pid  3774] <... prctl resumed>)        = 0
[pid  3774] setpgid(0, 0 <unfinished ...>
[pid  3770] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3774] <... setpgid resumed>)      = 0
[pid  3774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3774] write(3, "1000", 4)         = 4
[pid  3774] close(3)                    = 0
[pid  3774] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3774] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3774] pipe2([3, 4], 0)            = 0
[pid  3770] exit_group(0./strace-static-x86_64: Process 3775 attached
 <unfinished ...>
[pid  3774] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3770] <... exit_group resumed>)   = ?
[pid  3775] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3770] +++ exited with 0 +++
[pid  3775] <... prctl resumed>)        = 0
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3770, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3775] setpgid(0, 0)               = 0
[pid  3775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3775] <... openat resumed>)       = 3
[pid  3604] <... openat resumed>)       = 3
[pid  3775] write(3, "1000", 4 <unfinished ...>
[pid  3771] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3604] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3775] <... write resumed>)        = 4
[pid  3771] exit_group(0 <unfinished ...>
[pid  3604] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3771] <... exit_group resumed>)   = ?
[pid  3604] close(3 <unfinished ...>
[pid  3771] +++ exited with 0 +++
[pid  3604] <... close resumed>)        = 0
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3771, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3607] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3604] <... clone resumed>, child_tidptr=0x5555571ae690) = 3776
[pid  3775] close(3)                    = 0
[pid  3775] mkdir("./file0", 0777 <unfinished ...>
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3775] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3607] <... openat resumed>)       = 3
[pid  3775] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3607] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3775] pipe2( <unfinished ...>
[pid  3607] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3775] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3607] close(3./strace-static-x86_64: Process 3776 attached
 <unfinished ...>
[pid  3775] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3607] <... close resumed>)        = 0
[pid  3776] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3776] <... prctl resumed>)        = 0
[pid  3776] setpgid(0, 0 <unfinished ...>
[pid  3607] <... clone resumed>, child_tidptr=0x5555571ae690) = 3777
[pid  3776] <... setpgid resumed>)      = 0
[pid  3776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3776] write(3, "1000", 4)         = 4
[pid  3776] close(3)                    = 0
./strace-static-x86_64: Process 3777 attached
[pid  3776] mkdir("./file0", 0777 <unfinished ...>
[pid  3777] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3776] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3777] <... prctl resumed>)        = 0
[pid  3776] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3777] setpgid(0, 0 <unfinished ...>
[pid  3776] pipe2( <unfinished ...>
[pid  3777] <... setpgid resumed>)      = 0
[pid  3776] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3772] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3772] exit_group(0 <unfinished ...>
[pid  3777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3776] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3772] <... exit_group resumed>)   = ?
[pid  3777] <... openat resumed>)       = 3
[pid  3772] +++ exited with 0 +++
[pid  3777] write(3, "1000", 4 <unfinished ...>
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3772, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3777] <... write resumed>)        = 4
[pid  3777] close(3)                    = 0
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3777] mkdir("./file0", 0777 <unfinished ...>
[pid  3606] <... openat resumed>)       = 3
[pid  3777] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3606] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3777] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3606] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3777] pipe2( <unfinished ...>
[pid  3606] close(3 <unfinished ...>
[pid  3777] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3606] <... close resumed>)        = 0
[pid  3777] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3773] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3773] exit_group(0 <unfinished ...>
[pid  3606] <... clone resumed>, child_tidptr=0x5555571ae690) = 3778
[pid  3773] <... exit_group resumed>)   = ?
[pid  3774] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3774] exit_group(0 <unfinished ...>
[pid  3773] +++ exited with 0 +++
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3773, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3775] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3774] <... exit_group resumed>)   = ?
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3778 attached
 <unfinished ...>
[pid  3776] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3775] exit_group(0 <unfinished ...>
[pid  3774] +++ exited with 0 +++
[pid  3778] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3776] exit_group(0 <unfinished ...>
[pid  3775] <... exit_group resumed>)   = ?
[pid  3778] <... prctl resumed>)        = 0
[pid  3776] <... exit_group resumed>)   = ?
[pid  3775] +++ exited with 0 +++
[pid  3610] <... clone resumed>, child_tidptr=0x5555571ae690) = 3779
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3774, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3778] setpgid(0, 0 <unfinished ...>
[pid  3776] +++ exited with 0 +++
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3775, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3778] <... setpgid resumed>)      = 0
[pid  3608] <... openat resumed>)       = 3
[pid  3605] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3604] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3776, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3605] <... restart_syscall resumed>) = 0
[pid  3778] <... openat resumed>)       = 3
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3778] write(3, "1000", 4 <unfinished ...>
[pid  3608] close(3 <unfinished ...>
[pid  3778] <... write resumed>)        = 4
[pid  3608] <... close resumed>)        = 0
[pid  3778] close(3 <unfinished ...>
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3604] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3778] <... close resumed>)        = 0
[pid  3605] <... openat resumed>)       = 3
[pid  3778] mkdir("./file0", 0777 <unfinished ...>
[pid  3608] <... clone resumed>, child_tidptr=0x5555571ae690) = 3780
[pid  3605] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3604] <... openat resumed>)       = 3
[pid  3778] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3605] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3604] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3778] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3605] close(3 <unfinished ...>
[pid  3604] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3778] pipe2( <unfinished ...>
[pid  3605] <... close resumed>)        = 0
[pid  3604] close(3 <unfinished ...>
[pid  3778] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3778] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3604] <... close resumed>)        = 0
./strace-static-x86_64: Process 3780 attached
[pid  3780] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3780] setpgid(0, 0)               = 0
[pid  3780] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 3781 attached
./strace-static-x86_64: Process 3779 attached
 <unfinished ...>
[pid  3605] <... clone resumed>, child_tidptr=0x5555571ae690) = 3781
[pid  3604] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3780] <... openat resumed>)       = 3
[pid  3779] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3780] write(3, "1000", 4 <unfinished ...>
[pid  3779] <... prctl resumed>)        = 0
[pid  3780] <... write resumed>)        = 4
[pid  3779] setpgid(0, 0 <unfinished ...>
[pid  3604] <... clone resumed>, child_tidptr=0x5555571ae690) = 3782
[pid  3780] close(3 <unfinished ...>
[pid  3779] <... setpgid resumed>)      = 0
[pid  3781] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3780] <... close resumed>)        = 0
[pid  3779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3781] <... prctl resumed>)        = 0
[pid  3780] mkdir("./file0", 0777./strace-static-x86_64: Process 3782 attached
 <unfinished ...>
[pid  3781] setpgid(0, 0 <unfinished ...>
[pid  3780] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3779] <... openat resumed>)       = 3
[pid  3781] <... setpgid resumed>)      = 0
[pid  3780] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3779] write(3, "1000", 4 <unfinished ...>
[pid  3781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3780] pipe2( <unfinished ...>
[pid  3779] <... write resumed>)        = 4
[pid  3780] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3779] close(3 <unfinished ...>
[pid  3781] <... openat resumed>)       = 3
[pid  3780] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3779] <... close resumed>)        = 0
[pid  3782] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3781] write(3, "1000", 4 <unfinished ...>
[pid  3779] mkdir("./file0", 0777 <unfinished ...>
[pid  3782] <... prctl resumed>)        = 0
[pid  3781] <... write resumed>)        = 4
[pid  3779] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3781] close(3 <unfinished ...>
[pid  3779] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3782] setpgid(0, 0 <unfinished ...>
[pid  3781] <... close resumed>)        = 0
[pid  3779] pipe2( <unfinished ...>
[pid  3777] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3782] <... setpgid resumed>)      = 0
[pid  3781] mkdir("./file0", 0777 <unfinished ...>
[pid  3779] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3779] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3777] exit_group(0 <unfinished ...>
[pid  3782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3781] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3777] <... exit_group resumed>)   = ?
[pid  3781] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3781] pipe2( <unfinished ...>
[pid  3777] +++ exited with 0 +++
[pid  3782] <... openat resumed>)       = 3
[pid  3781] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3607] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3777, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3781] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3607] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3782] write(3, "1000", 4)         = 4
[pid  3607] <... restart_syscall resumed>) = 0
[pid  3782] close(3)                    = 0
[pid  3778] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3782] mkdir("./file0", 0777 <unfinished ...>
[pid  3778] exit_group(0 <unfinished ...>
[pid  3782] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3778] <... exit_group resumed>)   = ?
[pid  3607] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3782] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3778] +++ exited with 0 +++
[pid  3780] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3782] pipe2( <unfinished ...>
[pid  3780] exit_group(0 <unfinished ...>
[pid  3607] <... openat resumed>)       = 3
[pid  3780] <... exit_group resumed>)   = ?
[pid  3782] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3780] +++ exited with 0 +++
[pid  3607] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3606] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3778, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3782] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3608] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3780, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3608] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3607] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3606] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3608] <... openat resumed>)       = 3
[pid  3607] close(3 <unfinished ...>
[pid  3606] <... restart_syscall resumed>) = 0
[pid  3608] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3607] <... close resumed>)        = 0
[pid  3608] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3607] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3608] close(3)                    = 0
[pid  3608] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3606] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3608] <... clone resumed>, child_tidptr=0x5555571ae690) = 3784
[pid  3607] <... clone resumed>, child_tidptr=0x5555571ae690) = 3783
[pid  3606] <... openat resumed>)       = 3
[pid  3606] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3606] close(3./strace-static-x86_64: Process 3783 attached
)                    = 0
[pid  3783] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3606] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3783] <... prctl resumed>)        = 0
[pid  3783] setpgid(0, 0)               = 0
[pid  3783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3606] <... clone resumed>, child_tidptr=0x5555571ae690) = 3785
./strace-static-x86_64: Process 3784 attached
[pid  3783] <... openat resumed>)       = 3
[pid  3784] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3783] write(3, "1000", 4 <unfinished ...>
[pid  3784] <... prctl resumed>)        = 0
[pid  3783] <... write resumed>)        = 4
[pid  3784] setpgid(0, 0 <unfinished ...>
[pid  3783] close(3 <unfinished ...>
[pid  3784] <... setpgid resumed>)      = 0
[pid  3783] <... close resumed>)        = 0
[pid  3784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3783] mkdir("./file0", 0777 <unfinished ...>
[pid  3784] <... openat resumed>)       = 3
[pid  3783] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3784] write(3, "1000", 4 <unfinished ...>
[pid  3783] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3784] <... write resumed>)        = 4
[pid  3783] pipe2( <unfinished ...>
[pid  3784] close(3 <unfinished ...>
[pid  3783] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3784] <... close resumed>)        = 0
[pid  3783] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3784] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3784] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3784] pipe2([3, 4], 0)            = 0
[pid  3784] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,"./strace-static-x86_64: Process 3785 attached
 <unfinished ...>
[pid  3785] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3785] setpgid(0, 0)               = 0
[pid  3785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3785] write(3, "1000", 4)         = 4
[pid  3785] close(3)                    = 0
[pid  3785] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3785] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3785] pipe2([3, 4], 0)            = 0
[pid  3785] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004," <unfinished ...>
[pid  3781] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3781] exit_group(0)               = ?
[pid  3781] +++ exited with 0 +++
[pid  3779] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3779] exit_group(0)               = ?
[pid  3779] +++ exited with 0 +++
[pid  3605] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3781, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3605] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3605] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3605] close(3)                    = 0
[pid  3605] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3786
[pid  3610] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3779, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3610] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3610] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3610] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3610] close(3)                    = 0
[pid  3610] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555571ae690) = 3787
./strace-static-x86_64: Process 3786 attached
[pid  3786] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3786] setpgid(0, 0)               = 0
[pid  3786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3786] write(3, "1000", 4)         = 4
[pid  3786] close(3)                    = 0
[pid  3786] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3786] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3786] pipe2([3, 4], 0)            = 0
[pid  3786] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,"./strace-static-x86_64: Process 3787 attached
 <unfinished ...>
[pid  3787] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3787] setpgid(0, 0)               = 0
[pid  3787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3787] write(3, "1000", 4)         = 4
[pid  3787] close(3)                    = 0
[pid  3787] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3787] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3787] pipe2([3, 4], 0)            = 0
syzkaller login: [   48.558165][ T3782] ==================================================================
[   48.566355][ T3782] BUG: KASAN: use-after-free in __kernfs_remove+0xa09/0xb50
[   48.573760][ T3782] Read of size 2 at addr ffff888016b8d350 by task syz-executor251/3782
[   48.582100][ T3782] 
[   48.584431][ T3782] CPU: 1 PID: 3782 Comm: syz-executor251 Not tainted 6.0.0-rc5-syzkaller-00097-g38eddeedbbea #0
[   48.594849][ T3782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
[   48.604997][ T3782] Call Trace:
[   48.608278][ T3782]  <TASK>
[   48.611207][ T3782]  dump_stack_lvl+0xcd/0x134
[   48.615809][ T3782]  print_report.cold+0x2ba/0x719
[   48.620736][ T3782]  ? __kernfs_remove+0xa09/0xb50
[   48.625664][ T3782]  kasan_report+0xb1/0x1e0
[   48.630072][ T3782]  ? __kernfs_remove+0xa09/0xb50
[   48.634999][ T3782]  __kernfs_remove+0xa09/0xb50
[   48.639752][ T3782]  ? kernfs_next_descendant_post+0x2f0/0x2f0
[   48.645719][ T3782]  ? kernfs_name_hash+0xf1/0x120
[   48.650646][ T3782]  kernfs_remove_by_name_ns+0xa8/0x110
[   48.656094][ T3782]  sysfs_slab_add+0x13e/0x1e0
[   48.660758][ T3782]  __kmem_cache_create+0x509/0x690
[   48.665856][ T3782]  kmem_cache_create_usercopy+0x1f9/0x300
[   48.671571][ T3782]  p9_client_create+0xca5/0x1070
[   48.676501][ T3782]  ? p9_client_rpc+0xce0/0xce0
[   48.681335][ T3782]  ? lockdep_init_map_type+0x21a/0x7f0
[   48.686784][ T3782]  ? rcu_read_lock_sched_held+0x3a/0x70
[   48.692314][ T3782]  ? __raw_spin_lock_init+0x36/0x110
[   48.697592][ T3782]  v9fs_session_init+0x1e2/0x1810
[   48.702608][ T3782]  ? find_held_lock+0x2d/0x110
[   48.707359][ T3782]  ? v9fs_show_options+0x780/0x780
[   48.712461][ T3782]  ? rcu_read_lock_sched_held+0x3a/0x70
[   48.717992][ T3782]  ? trace_kmalloc+0x32/0x100
[   48.722659][ T3782]  v9fs_mount+0xba/0xc90
[   48.726886][ T3782]  ? v9fs_statfs+0x4d0/0x4d0
[   48.731545][ T3782]  ? apparmor_capable+0x1d8/0x460
[   48.736649][ T3782]  ? v9fs_statfs+0x4d0/0x4d0
[   48.741223][ T3782]  legacy_get_tree+0x105/0x220
[   48.745974][ T3782]  vfs_get_tree+0x89/0x2f0
[   48.750376][ T3782]  path_mount+0x1326/0x1e20
[   48.754868][ T3782]  ? kmem_cache_free+0xeb/0x5b0
[   48.759703][ T3782]  ? finish_automount+0x960/0x960
[   48.764714][ T3782]  ? putname+0xfe/0x140
[   48.768860][ T3782]  __x64_sys_mount+0x27f/0x300
[   48.773611][ T3782]  ? copy_mnt_ns+0xae0/0xae0
[   48.778188][ T3782]  ? lockdep_hardirqs_on+0x79/0x100
[   48.783374][ T3782]  ? _raw_spin_unlock_irq+0x2a/0x40
[   48.788557][ T3782]  ? ptrace_notify+0xfa/0x140
[   48.793231][ T3782]  do_syscall_64+0x35/0xb0
[   48.797633][ T3782]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   48.803512][ T3782] RIP: 0033:0x7f215894df39
[   48.807911][ T3782] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 14 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 c0 ff ff ff f7 d8 64 89 01 48
[   48.827502][ T3782] RSP: 002b:00007ffe592b22c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   48.835904][ T3782] RAX: ffffffffffffffda RBX: 00007ffe592b2300 RCX: 00007f215894df39
[   48.843864][ T3782] RDX: 0000000020000140 RSI: 0000000020000200 RDI: 0000000000000000
[   48.851820][ T3782] RBP: 0000000000000000 R08: 0000000020000380 R09: 000000000000bcb0
[   48.859773][ T3782] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000f4240
[   48.867727][ T3782] R13: 000000000000bcb0 R14: 00007ffe592b22ec R15: 00007ffe592b22f0
[   48.875690][ T3782]  </TASK>
[   48.878694][ T3782] 
[   48.881004][ T3782] Allocated by task 3779:
[   48.885313][ T3782]  kasan_save_stack+0x1e/0x40
[   48.889976][ T3782]  __kasan_slab_alloc+0x90/0xc0
[   48.894902][ T3782]  kmem_cache_alloc+0x267/0x3b0
[   48.899996][ T3782]  __kernfs_new_node+0xd4/0x8b0
[   48.904833][ T3782]  kernfs_create_dir_ns+0x9c/0x220
[   48.909932][ T3782]  sysfs_create_dir_ns+0x127/0x290
[   48.915025][ T3782]  kobject_add_internal+0x2c9/0x8f0
[   48.920207][ T3782]  kobject_init_and_add+0x101/0x160
[   48.925384][ T3782]  sysfs_slab_add+0x161/0x1e0
[   48.930044][ T3782]  __kmem_cache_create+0x509/0x690
[   48.935137][ T3782]  kmem_cache_create_usercopy+0x1f9/0x300
[   48.940838][ T3782]  p9_client_create+0xca5/0x1070
[   48.945758][ T3782]  v9fs_session_init+0x1e2/0x1810
[   48.950768][ T3782]  v9fs_mount+0xba/0xc90
[   48.954999][ T3782]  legacy_get_tree+0x105/0x220
[   48.959833][ T3782]  vfs_get_tree+0x89/0x2f0
[   48.964321][ T3782]  path_mount+0x1326/0x1e20
[   48.968808][ T3782]  __x64_sys_mount+0x27f/0x300
[   48.973555][ T3782]  do_syscall_64+0x35/0xb0
[   48.977963][ T3782]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   48.983838][ T3782] 
[   48.986143][ T3782] Freed by task 3782:
[   48.990103][ T3782]  kasan_save_stack+0x1e/0x40
[   48.994762][ T3782]  kasan_set_track+0x21/0x30
[   48.999335][ T3782]  kasan_set_free_info+0x20/0x30
[   49.004260][ T3782]  ____kasan_slab_free+0x166/0x1c0
[   49.009354][ T3782]  slab_free_freelist_hook+0x8b/0x1c0
[   49.014709][ T3782]  kmem_cache_free+0xeb/0x5b0
[   49.019369][ T3782]  kernfs_put.part.0+0x2c4/0x540
[   49.024290][ T3782]  kernfs_put+0x42/0x50
[   49.028428][ T3782]  __kernfs_remove+0x7a6/0xb50
[   49.033174][ T3782]  kernfs_remove_by_name_ns+0xa8/0x110
[   49.038617][ T3782]  sysfs_slab_add+0x13e/0x1e0
[   49.043276][ T3782]  __kmem_cache_create+0x509/0x690
[   49.048371][ T3782]  kmem_cache_create_usercopy+0x1f9/0x300
[   49.054159][ T3782]  p9_client_create+0xca5/0x1070
[   49.059078][ T3782]  v9fs_session_init+0x1e2/0x1810
[   49.064087][ T3782]  v9fs_mount+0xba/0xc90
[   49.068314][ T3782]  legacy_get_tree+0x105/0x220
[   49.073062][ T3782]  vfs_get_tree+0x89/0x2f0
[   49.077464][ T3782]  path_mount+0x1326/0x1e20
[   49.082086][ T3782]  __x64_sys_mount+0x27f/0x300
[   49.086841][ T3782]  do_syscall_64+0x35/0xb0
[   49.091244][ T3782]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   49.097121][ T3782] 
[   49.099425][ T3782] The buggy address belongs to the object at ffff888016b8d2b8
[   49.099425][ T3782]  which belongs to the cache kernfs_node_cache of size 168
[   49.113979][ T3782] The buggy address is located 152 bytes inside of
[   49.113979][ T3782]  168-byte region [ffff888016b8d2b8, ffff888016b8d360)
[   49.127236][ T3782] 
[   49.129539][ T3782] The buggy address belongs to the physical page:
[   49.135930][ T3782] page:ffffea00005ae340 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x16b8d
[   49.146149][ T3782] flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
[   49.153679][ T3782] raw: 00fff00000000200 0000000000000000 dead000000000001 ffff888140007b40
[   49.162247][ T3782] raw: 0000000000000000 0000000000110011 00000001ffffffff 0000000000000000
[   49.170809][ T3782] page dumped because: kasan: bad access detected
[   49.177199][ T3782] page_owner tracks the page as allocated
[   49.182893][ T3782] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 3687, tgid 3687 (syz-executor251), ts 45586736810, free_ts 45554581205
[   49.201455][ T3782]  get_page_from_freelist+0x109b/0x2ce0
[   49.206990][ T3782]  __alloc_pages+0x1c7/0x510
[   49.211571][ T3782]  alloc_pages+0x1a6/0x270
[   49.215974][ T3782]  allocate_slab+0x27e/0x3d0
[   49.221069][ T3782]  ___slab_alloc+0x7f1/0xe10
[   49.225640][ T3782]  __slab_alloc.constprop.0+0x4d/0xa0
[   49.230993][ T3782]  kmem_cache_alloc+0x38c/0x3b0
[   49.235825][ T3782]  __kernfs_new_node+0xd4/0x8b0
[   49.240659][ T3782]  kernfs_new_node+0x93/0x120
[   49.245321][ T3782]  __kernfs_create_file+0x51/0x350
[   49.250417][ T3782]  sysfs_add_file_mode_ns+0x20f/0x3f0
[   49.255859][ T3782]  internal_create_group+0x322/0xb10
[   49.261125][ T3782]  internal_create_groups.part.0+0x90/0x140
[   49.267000][ T3782]  sysfs_create_groups+0x25/0x50
[   49.272005][ T3782]  device_add+0x796/0x1e90
[   49.276403][ T3782]  device_create_groups_vargs+0x203/0x280
[   49.282105][ T3782] page last free stack trace:
[   49.286756][ T3782]  free_pcp_prepare+0x5e4/0xd20
[   49.291591][ T3782]  free_unref_page+0x19/0x4d0
[   49.296258][ T3782]  qlist_free_all+0x6a/0x170
[   49.301009][ T3782]  kasan_quarantine_reduce+0x180/0x200
[   49.306451][ T3782]  __kasan_slab_alloc+0xa2/0xc0
[   49.311284][ T3782]  kmem_cache_alloc+0x267/0x3b0
[   49.316120][ T3782]  p9_client_prepare_req.part.0+0x3a/0xa40
[   49.321913][ T3782]  p9_client_rpc+0x1f5/0xce0
[   49.326484][ T3782]  p9_client_clunk+0x7c/0x130
[   49.331146][ T3782]  v9fs_mount+0x8ba/0xc90
[   49.335459][ T3782]  legacy_get_tree+0x105/0x220
[   49.340211][ T3782]  vfs_get_tree+0x89/0x2f0
[   49.344610][ T3782]  path_mount+0x1326/0x1e20
[   49.349099][ T3782]  __x64_sys_mount+0x27f/0x300
[   49.353849][ T3782]  do_syscall_64+0x35/0xb0
[   49.358251][ T3782]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   49.364129][ T3782] 
[   49.366432][ T3782] Memory state around the buggy address:
[   49.372040][ T3782]  ffff888016b8d200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fc
[   49.380083][ T3782]  ffff888016b8d280: fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb fb
[   49.388122][ T3782] >ffff888016b8d300: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
[   49.396165][ T3782]                                                  ^
[   49.402813][ T3782]  ffff888016b8d380: fc fc fc fc fa fb fb fb fb fb fb fb fb fb fb fb
[   49.410943][ T3782]  ffff888016b8d400: fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc
[   49.418980][ T3782] ==================================================================
[   49.427231][ T3782] Kernel panic - not syncing: panic_on_warn set ...
[   49.433817][ T3782] CPU: 0 PID: 3782 Comm: syz-executor251 Not tainted 6.0.0-rc5-syzkaller-00097-g38eddeedbbea #0
[   49.444395][ T3782] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
[   49.454440][ T3782] Call Trace:
[   49.457701][ T3782]  <TASK>
[   49.460614][ T3782]  dump_stack_lvl+0xcd/0x134
[   49.465197][ T3782]  panic+0x2c8/0x627
[   49.469080][ T3782]  ? panic_print_sys_info.part.0+0x10b/0x10b
[   49.475050][ T3782]  ? preempt_schedule_common+0x59/0xc0
[   49.480501][ T3782]  ? preempt_schedule_thunk+0x16/0x18
[   49.485862][ T3782]  ? __kernfs_remove+0xa09/0xb50
[   49.490789][ T3782]  end_report.part.0+0x3f/0x7c
[   49.495547][ T3782]  kasan_report.cold+0xa/0xf
[   49.500126][ T3782]  ? __kernfs_remove+0xa09/0xb50
[   49.505050][ T3782]  __kernfs_remove+0xa09/0xb50
[   49.509934][ T3782]  ? kernfs_next_descendant_post+0x2f0/0x2f0
[   49.515907][ T3782]  ? kernfs_name_hash+0xf1/0x120
[   49.520837][ T3782]  kernfs_remove_by_name_ns+0xa8/0x110
[   49.526285][ T3782]  sysfs_slab_add+0x13e/0x1e0
[   49.531040][ T3782]  __kmem_cache_create+0x509/0x690
[   49.536405][ T3782]  kmem_cache_create_usercopy+0x1f9/0x300
[   49.542118][ T3782]  p9_client_create+0xca5/0x1070
[   49.547045][ T3782]  ? p9_client_rpc+0xce0/0xce0
[   49.551798][ T3782]  ? lockdep_init_map_type+0x21a/0x7f0
[   49.557241][ T3782]  ? rcu_read_lock_sched_held+0x3a/0x70
[   49.562773][ T3782]  ? __raw_spin_lock_init+0x36/0x110
[   49.568047][ T3782]  v9fs_session_init+0x1e2/0x1810
[   49.573158][ T3782]  ? find_held_lock+0x2d/0x110
[   49.577908][ T3782]  ? v9fs_show_options+0x780/0x780
[   49.583010][ T3782]  ? rcu_read_lock_sched_held+0x3a/0x70
[   49.588541][ T3782]  ? trace_kmalloc+0x32/0x100
[   49.593205][ T3782]  v9fs_mount+0xba/0xc90
[   49.597433][ T3782]  ? v9fs_statfs+0x4d0/0x4d0
[   49.602008][ T3782]  ? apparmor_capable+0x1d8/0x460
[   49.607019][ T3782]  ? v9fs_statfs+0x4d0/0x4d0
[   49.611683][ T3782]  legacy_get_tree+0x105/0x220
[   49.616610][ T3782]  vfs_get_tree+0x89/0x2f0
[   49.621015][ T3782]  path_mount+0x1326/0x1e20
[   49.625505][ T3782]  ? kmem_cache_free+0xeb/0x5b0
[   49.630425][ T3782]  ? finish_automount+0x960/0x960
[   49.635435][ T3782]  ? putname+0xfe/0x140
[   49.639579][ T3782]  __x64_sys_mount+0x27f/0x300
[   49.644331][ T3782]  ? copy_mnt_ns+0xae0/0xae0
[   49.648907][ T3782]  ? lockdep_hardirqs_on+0x79/0x100
[   49.654096][ T3782]  ? _raw_spin_unlock_irq+0x2a/0x40
[   49.659363][ T3782]  ? ptrace_notify+0xfa/0x140
[   49.664025][ T3782]  do_syscall_64+0x35/0xb0
[   49.668430][ T3782]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   49.674309][ T3782] RIP: 0033:0x7f215894df39
[   49.678709][ T3782] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 14 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 c0 ff ff ff f7 d8 64 89 01 48
[   49.698302][ T3782] RSP: 002b:00007ffe592b22c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   49.706699][ T3782] RAX: ffffffffffffffda RBX: 00007ffe592b2300 RCX: 00007f215894df39
[   49.714664][ T3782] RDX: 0000000020000140 RSI: 0000000020000200 RDI: 0000000000000000
[   49.722618][ T3782] RBP: 0000000000000000 R08: 0000000020000380 R09: 000000000000bcb0
[   49.730573][ T3782] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000f4240
[   49.738527][ T3782] R13: 000000000000bcb0 R14: 00007ffe592b22ec R15: 00007ffe592b22f0
[   49.746488][ T3782]  </TASK>
[   49.750238][ T3782] Kernel Offset: disabled
[   49.754545][ T3782] Rebooting in 86400 seconds..