./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3258085872

<...>
forked to background, child pid 3187
no interfaces have a carrier
[   22.962325][ T3188] 8021q: adding VLAN 0 to HW filter on device bond0
[   22.971745][ T3188] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK

syzkaller
Warning: Permanently added '10.128.0.113' (ECDSA) to the list of known hosts.
execve("./syz-executor3258085872", ["./syz-executor3258085872"], 0x7fff297f9620 /* 10 vars */) = 0
brk(NULL)                               = 0x555556dbb000
brk(0x555556dbbd00)                     = 0x555556dbbd00
arch_prctl(ARCH_SET_FS, 0x555556dbb3c0) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor3258085872", 4096) = 28
brk(0x555556ddcd00)                     = 0x555556ddcd00
brk(0x555556ddd000)                     = 0x555556ddd000
mprotect(0x7f9adb883000, 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=0x7f9adb7d30a0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f9adb7d3fe0}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7f9adb7d30a0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f9adb7d3fe0}, NULL, 8) = 0
clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3616
./strace-static-x86_64: Process 3616 attached
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3617
./strace-static-x86_64: Process 3617 attached
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
./strace-static-x86_64: Process 3618 attached
[pid  3615] <... clone resumed>, child_tidptr=0x555556dbb690) = 3618
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3615] <... clone resumed>, child_tidptr=0x555556dbb690) = 3619
[pid  3616] close(3 <unfinished ...>
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] <... close resumed>)        = 0
./strace-static-x86_64: Process 3620 attached
./strace-static-x86_64: Process 3619 attached
[pid  3618] <... openat resumed>)       = 3
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3615] <... clone resumed>, child_tidptr=0x555556dbb690) = 3620
[pid  3615] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3621
[pid  3615] <... clone resumed>, child_tidptr=0x555556dbb690) = 3622
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3623
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3621 attached
./strace-static-x86_64: Process 3622 attached
 <unfinished ...>
[pid  3621] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3621] <... prctl resumed>)        = 0
[pid  3622] <... openat resumed>)       = 3
./strace-static-x86_64: Process 3623 attached
[pid  3621] setpgid(0, 0 <unfinished ...>
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3621] <... setpgid resumed>)      = 0
[pid  3623] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3621] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3623] <... prctl resumed>)        = 0
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3623] setpgid(0, 0 <unfinished ...>
[pid  3622] close(3 <unfinished ...>
[pid  3621] <... openat resumed>)       = 3
[pid  3623] <... setpgid resumed>)      = 0
[pid  3622] <... close resumed>)        = 0
[pid  3621] write(3, "1000", 4 <unfinished ...>
[pid  3623] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3621] <... write resumed>)        = 4
[pid  3617] close(3 <unfinished ...>
[pid  3621] close(3 <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3625
[pid  3623] <... openat resumed>)       = 3
[pid  3621] <... close resumed>)        = 0
[pid  3623] write(3, "1000", 4 <unfinished ...>
[pid  3621] mkdir("./file0", 0777 <unfinished ...>
[pid  3623] <... write resumed>)        = 4
[pid  3623] close(3 <unfinished ...>
[pid  3621] <... mkdir resumed>)        = 0
[pid  3623] <... close resumed>)        = 0
[pid  3621] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3623] mkdir("./file0", 0777 <unfinished ...>
[pid  3621] pipe2( <unfinished ...>
[pid  3623] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3621] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3623] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3623] pipe2( <unfinished ...>
[pid  3621] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3623] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3621] write(-1, NULL, 0 <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3623] write(-1, NULL, 0 <unfinished ...>
[pid  3621] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] <... openat resumed>)       = 3
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3625 attached
 <unfinished ...>
[pid  3623] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3621] write(-1, NULL, 0 <unfinished ...>
[pid  3618] close(3 <unfinished ...>
[pid  3625] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3623] write(-1, NULL, 0 <unfinished ...>
[pid  3621] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3618] <... close resumed>)        = 0
[pid  3625] <... prctl resumed>)        = 0
[pid  3623] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3621] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3626
[pid  3625] setpgid(0, 0 <unfinished ...>
[pid  3623] write(-1, NULL, 0 <unfinished ...>
[pid  3621] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] close(3 <unfinished ...>
[pid  3625] <... setpgid resumed>)      = 0
[pid  3623] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3621] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3620] <... close resumed>)        = 0
[pid  3623] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3627
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3628
./strace-static-x86_64: Process 3627 attached
[pid  3623] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3625] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3623] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[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 <unfinished ...>
[pid  3625] <... openat resumed>)       = 3
[pid  3627] <... openat resumed>)       = 3
[pid  3625] write(3, "1000", 4 <unfinished ...>
[pid  3627] write(3, "1000", 4 <unfinished ...>
[pid  3625] <... write resumed>)        = 4
[pid  3627] <... write resumed>)        = 4
[pid  3627] close(3)                    = 0
[pid  3625] close(3 <unfinished ...>
[pid  3627] mkdir("./file0", 0777 <unfinished ...>
[pid  3625] <... close resumed>)        = 0
./strace-static-x86_64: Process 3626 attached
[pid  3627] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3625] mkdir("./file0", 0777 <unfinished ...>
[pid  3627] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3626] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3625] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3627] pipe2( <unfinished ...>
[pid  3626] <... prctl resumed>)        = 0
[pid  3625] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3627] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3626] setpgid(0, 0 <unfinished ...>
[pid  3625] pipe2( <unfinished ...>
[pid  3627] write(-1, NULL, 0 <unfinished ...>
[pid  3626] <... setpgid resumed>)      = 0
[pid  3625] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3627] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3626] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3625] write(-1, NULL, 0 <unfinished ...>
[pid  3627] write(-1, NULL, 0 <unfinished ...>
[pid  3626] <... openat resumed>)       = 3
[pid  3625] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3627] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3626] write(3, "1000", 4 <unfinished ...>
[pid  3625] write(-1, NULL, 0 <unfinished ...>
[pid  3627] write(-1, NULL, 0 <unfinished ...>
[pid  3626] <... write resumed>)        = 4
[pid  3625] <... write resumed>)        = -1 EBADF (Bad file descriptor)
./strace-static-x86_64: Process 3628 attached
[pid  3627] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3626] close(3 <unfinished ...>
[pid  3625] write(-1, NULL, 0 <unfinished ...>
[pid  3627] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3626] <... close resumed>)        = 0
[pid  3625] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3628] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3627] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3626] mkdir("./file0", 0777 <unfinished ...>
[pid  3625] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3628] <... prctl resumed>)        = 0
[pid  3627] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3626] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3625] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3628] setpgid(0, 0 <unfinished ...>
[pid  3626] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3625] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3626] pipe2( <unfinished ...>
[pid  3628] <... setpgid resumed>)      = 0
[pid  3626] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3628] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3626] write(-1, NULL, 0 <unfinished ...>
[pid  3628] <... openat resumed>)       = 3
[pid  3626] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3628] write(3, "1000", 4 <unfinished ...>
[pid  3626] write(-1, NULL, 0 <unfinished ...>
[pid  3628] <... write resumed>)        = 4
[pid  3626] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3628] close(3 <unfinished ...>
[pid  3626] write(-1, NULL, 0 <unfinished ...>
[pid  3628] <... close resumed>)        = 0
[pid  3626] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3628] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3626] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3628] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3626] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3628] pipe2( <unfinished ...>
[pid  3626] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3628] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3628] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3628] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3628] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3628] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3628] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3621] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3621] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3621] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3621] exit_group(0)               = ?
[pid  3621] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3621, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3633] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3633] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3633] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3633] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3623] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3623] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3623] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3623] exit_group(0)               = ?
[pid  3623] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3623, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3619] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3635] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3635] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3635] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3635] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3625] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3625] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3625] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3625] exit_group(0)               = ?
[pid  3625] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3625, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3636
./strace-static-x86_64: Process 3636 attached
[pid  3636] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3636] setpgid(0, 0)               = 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)                    = 0
[pid  3636] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3636] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3636] pipe2([3, 4], 0)            = 0
[pid  3636] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3636] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3636] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3636] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3636] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3628] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3628] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3628] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3628] exit_group(0)               = ?
[pid  3628] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3628, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3620] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3637] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3637] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3637] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3637] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3626] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3626] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3626] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3626] exit_group(0)               = ?
[pid  3626] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3626, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3638
./strace-static-x86_64: Process 3638 attached
[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
[pid  3638] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3638] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3638] pipe2([3, 4], 0)            = 0
[pid  3638] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3638] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3638] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3638] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3638] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3627] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3627] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3627] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3627] exit_group(0)               = ?
[pid  3627] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3627, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3639
./strace-static-x86_64: Process 3639 attached
[pid  3639] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3639] setpgid(0, 0)               = 0
[pid  3639] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3639] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3639] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3639] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3639] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3636] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3636] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3636] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3636] exit_group(0)               = ?
[pid  3636] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3636, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3640] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3640] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3640] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3640] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3633] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3633] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3633] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3633] exit_group(0)               = ?
[pid  3633] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3633, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3616] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3641
./strace-static-x86_64: Process 3641 attached
[pid  3641] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3641] setpgid(0, 0)               = 0
[pid  3641] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3641] write(3, "1000", 4)         = 4
[pid  3635] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3641] close(3)                    = 0
[pid  3635] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3641] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3635] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3641] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3641] pipe2( <unfinished ...>
[pid  3635] fdatasync(-1 <unfinished ...>
[pid  3641] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3641] write(-1, NULL, 0 <unfinished ...>
[pid  3635] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3641] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3641] write(-1, NULL, 0 <unfinished ...>
[pid  3635] exit_group(0 <unfinished ...>
[pid  3641] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3641] write(-1, NULL, 0 <unfinished ...>
[pid  3635] <... exit_group resumed>)   = ?
[pid  3641] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3641] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3635] +++ exited with 0 +++
[pid  3641] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3641] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3635, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3642
./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
[pid  3642] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3642] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3642] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3642] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3642] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3638] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3638] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3638] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3638] exit_group(0)               = ?
[pid  3638] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3638, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3643
./strace-static-x86_64: Process 3643 attached
[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  3637] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3637] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3637] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3637] exit_group(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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3643] write(-1, NULL, 0 <unfinished ...>
[pid  3637] +++ exited with 0 +++
[pid  3643] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3637, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid  3643] write(-1, NULL, 0 <unfinished ...>
[pid  3620] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3643] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3643] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3643] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3620] <... restart_syscall resumed>) = 0
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3644] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3644] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3644] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3644] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3639] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3639] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3639] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3639] exit_group(0)               = ?
[pid  3639] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3639, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3618] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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  3645] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3645] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3645] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3645] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3645] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3642] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3642] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3642] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3642] exit_group(0)               = ?
[pid  3642] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3642, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3646
./strace-static-x86_64: Process 3646 attached
[pid  3646] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3646] setpgid(0, 0)               = 0
[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)      = -1 EEXIST (File exists)
[pid  3646] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3646] pipe2( <unfinished ...>
[pid  3641] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3646] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3641] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3646] write(-1, NULL, 0 <unfinished ...>
[pid  3641] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3646] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3641] fdatasync(-1 <unfinished ...>
[pid  3646] write(-1, NULL, 0 <unfinished ...>
[pid  3641] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3646] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3641] exit_group(0 <unfinished ...>
[pid  3646] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3641] <... exit_group resumed>)   = ?
[pid  3646] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3646] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3641] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3641, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3647] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3647] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3647] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3647] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3640] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3640] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3640] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3640] exit_group(0)               = ?
[pid  3640] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3640, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid  3622] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3648] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3648] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3648] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3648] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3644] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3644] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3644] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3644] exit_group(0)               = ?
[pid  3644] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3644, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3620] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3649
./strace-static-x86_64: Process 3649 attached
[pid  3649] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3649] setpgid(0, 0)               = 0
[pid  3649] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3649] write(3, "1000", 4)         = 4
[pid  3649] close(3)                    = 0
[pid  3649] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3649] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3649] pipe2([3, 4], 0)            = 0
[pid  3649] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3649] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3649] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3649] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3649] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3647] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3647] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3647] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3647] exit_group(0)               = ?
[pid  3647] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3647, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3650
./strace-static-x86_64: Process 3650 attached
[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  3650] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3650] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3650] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3650] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3650] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3645] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3645] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3645] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3645] exit_group(0)               = ?
[pid  3645] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3645, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3651
./strace-static-x86_64: Process 3651 attached
[pid  3651] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3651] setpgid(0, 0)               = 0
[pid  3651] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3651] write(3, "1000", 4)         = 4
[pid  3651] close(3)                    = 0
[pid  3651] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3651] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3651] pipe2([3, 4], 0)            = 0
[pid  3651] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3651] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3651] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3651] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3651] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3646] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3646] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3646] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3646] exit_group(0)               = ?
[pid  3646] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3646, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid  3619] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3652
./strace-static-x86_64: Process 3652 attached
[pid  3652] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3652] setpgid(0, 0)               = 0
[pid  3652] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3652] write(3, "1000", 4)         = 4
[pid  3652] close(3)                    = 0
[pid  3652] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3652] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3652] pipe2([3, 4], 0)            = 0
[pid  3652] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3652] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3652] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3652] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3652] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3643] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3643] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3643] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3643] exit_group(0)               = ?
[pid  3643] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3643, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3653
./strace-static-x86_64: Process 3653 attached
[pid  3653] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3653] setpgid(0, 0)               = 0
[pid  3653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3653] write(3, "1000", 4)         = 4
[pid  3653] close(3)                    = 0
[pid  3653] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3653] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3653] pipe2([3, 4], 0)            = 0
[pid  3653] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3653] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3653] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3653] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3653] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3648] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3648] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3648] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3648] exit_group(0)               = ?
[pid  3648] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3648, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3654
./strace-static-x86_64: Process 3654 attached
[pid  3654] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3654] setpgid(0, 0)               = 0
[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  3654] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3654] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3654] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3654] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3654] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3651] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3651] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3651] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3651] exit_group(0)               = ?
[pid  3651] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3651, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3655
./strace-static-x86_64: Process 3655 attached
[pid  3655] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3655] setpgid(0, 0)               = 0
[pid  3655] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3655] write(3, "1000", 4)         = 4
[pid  3655] close(3)                    = 0
[pid  3655] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3655] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3655] pipe2([3, 4], 0)            = 0
[pid  3655] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3655] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3655] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3655] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3655] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3649] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3649] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3649] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3649] exit_group(0)               = ?
[pid  3649] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3649, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3620] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3656
./strace-static-x86_64: Process 3656 attached
[pid  3656] prctl(PR_SET_PDEATHSIG, SIGKILL) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3656] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3656] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3656] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3656] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3652] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3652] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3652] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3652] exit_group(0)               = ?
[pid  3652] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3652, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3657] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3657] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3657] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3657] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3650] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3650] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3650] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3650] exit_group(0)               = ?
[pid  3650] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3650, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3658] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3658] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3658] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3658] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3653] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3653] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3653] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3653] exit_group(0)               = ?
[pid  3653] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3653, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3659 attached
 <unfinished ...>
[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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3659] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3659] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3659] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3659] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3659
[pid  3654] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3654] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3654] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3654] exit_group(0)               = ?
[pid  3654] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3654, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3660] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3660] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3660] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3660] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3656] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3656] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3656] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3656] exit_group(0)               = ?
[pid  3656] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3656, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3620] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3661] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3661] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3661] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3661] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3657] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3657] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3657] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3657] exit_group(0)               = ?
[pid  3657] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3657, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3662 attached
, child_tidptr=0x555556dbb690) = 3662
[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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3662] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3662] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3662] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3662] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3655] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3655] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3655] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3655] exit_group(0)               = ?
[pid  3655] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3655, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3618] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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  3663] pipe2([3, 4], 0)            = 0
[pid  3663] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3663] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3663] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3663] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3663] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3659] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3659] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3659] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3659] exit_group(0)               = ?
[pid  3659] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3659, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3664] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3664] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3664] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3664] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3658] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3658] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3658] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3658] exit_group(0)               = ?
[pid  3658] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3658, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3616] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3665] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3665] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3665] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3665] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3662] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3662] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3662] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3662] exit_group(0)               = ?
[pid  3662] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3662, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3666
./strace-static-x86_64: Process 3666 attached
[pid  3666] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3666] setpgid(0, 0)               = 0
[pid  3666] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3666] write(3, "1000", 4)         = 4
[pid  3666] close(3)                    = 0
[pid  3666] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3666] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3666] pipe2([3, 4], 0)            = 0
[pid  3666] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3666] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3666] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3666] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3666] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3661] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3661] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3661] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3661] exit_group(0)               = ?
[pid  3661] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3661, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3667
./strace-static-x86_64: Process 3667 attached
[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  3667] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3667] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3667] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3667] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3667] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3660] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3660] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3660] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3660] exit_group(0)               = ?
[pid  3660] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3660, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3668] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3668] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3668] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3668] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3664] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3664] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3664] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3664] exit_group(0)               = ?
[pid  3664] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3664, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3669
./strace-static-x86_64: Process 3669 attached
[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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3669] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3669] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3669] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3669] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3663] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3663] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3663] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3663] exit_group(0)               = ?
[pid  3663] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3663, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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  3670] pipe2([3, 4], 0)            = 0
[pid  3670] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3670] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3670] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3670] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3670] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3665] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3665] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3665] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3665] exit_group(0)               = ?
[pid  3665] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3665, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3671
./strace-static-x86_64: Process 3671 attached
[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
[pid  3671] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3671] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3671] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3671] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3671] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3667] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3667] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3667] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3667] exit_group(0)               = ?
[pid  3667] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3667, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3672
./strace-static-x86_64: Process 3672 attached
[pid  3672] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3672] setpgid(0, 0)               = 0
[pid  3672] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3672] write(3, "1000", 4)         = 4
[pid  3672] close(3)                    = 0
[pid  3672] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3672] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3672] pipe2([3, 4], 0)            = 0
[pid  3672] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3672] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3672] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3672] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3672] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3666] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3666] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3666] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3666] exit_group(0)               = ?
[pid  3666] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3666, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3673
./strace-static-x86_64: Process 3673 attached
[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) = 3
[pid  3673] write(3, "1000", 4)         = 4
[pid  3673] close(3)                    = 0
[pid  3673] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3673] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3673] pipe2([3, 4], 0)            = 0
[pid  3673] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3673] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3673] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3673] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3673] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3669] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3669] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3669] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3669] exit_group(0)               = ?
[pid  3669] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3669, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3674
./strace-static-x86_64: Process 3674 attached
[pid  3674] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3674] setpgid(0, 0 <unfinished ...>
[pid  3670] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3670] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3674] <... setpgid resumed>)      = 0
[pid  3674] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3670] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3670] exit_group(0)               = ?
[pid  3674] <... openat resumed>)       = 3
[pid  3674] write(3, "1000", 4)         = 4
[pid  3674] close(3)                    = 0
[pid  3674] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3674] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3674] pipe2([3, 4], 0)            = 0
[pid  3674] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3674] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3670] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3670, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3618] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3674] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3618] <... restart_syscall resumed>) = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3675
[pid  3674] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3674] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3675 attached
 <unfinished ...>
[pid  3675] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3675] setpgid(0, 0)               = 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  3675] pipe2([3, 4], 0)            = 0
[pid  3675] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3675] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3675] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3675] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3675] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3671] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3671] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3671] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3671] exit_group(0)               = ?
[pid  3671] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3671, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3676
./strace-static-x86_64: Process 3676 attached
[pid  3676] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3676] setpgid(0, 0)               = 0
[pid  3676] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3672] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3672] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3672] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3676] <... openat resumed>)       = 3
[pid  3676] write(3, "1000", 4 <unfinished ...>
[pid  3672] exit_group(0 <unfinished ...>
[pid  3676] <... write resumed>)        = 4
[pid  3672] <... exit_group resumed>)   = ?
[pid  3676] close(3 <unfinished ...>
[pid  3672] +++ exited with 0 +++
[pid  3676] <... close resumed>)        = 0
[pid  3620] --- 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 <unfinished ...>
[pid  3620] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3676] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3620] <... restart_syscall resumed>) = 0
[pid  3676] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3676] pipe2([3, 4], 0)            = 0
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3676] write(-1, NULL, 0 <unfinished ...>
[pid  3620] <... openat resumed>)       = 3
[pid  3676] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3676] write(-1, NULL, 0 <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3676] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] close(3 <unfinished ...>
[pid  3676] write(-1, NULL, 0 <unfinished ...>
[pid  3620] <... close resumed>)        = 0
[pid  3676] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3677 attached
 <unfinished ...>
[pid  3676] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3668] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3676] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3677
[pid  3676] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3668] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[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  3677] write(3, "1000", 4)         = 4
[pid  3677] close(3)                    = 0
[pid  3677] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3668] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3668] exit_group(0 <unfinished ...>
[pid  3677] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3677] pipe2([3, 4], 0)            = 0
[pid  3668] <... exit_group resumed>)   = ?
[pid  3677] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3677] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3677] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3677] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3677] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3668] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3668, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3678
./strace-static-x86_64: Process 3678 attached
[pid  3678] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3678] setpgid(0, 0)               = 0
[pid  3678] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3678] write(3, "1000", 4)         = 4
[pid  3678] close(3)                    = 0
[pid  3678] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3678] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3678] pipe2([3, 4], 0)            = 0
[pid  3678] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3678] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3678] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3678] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3678] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3675] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3675] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3675] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3675] exit_group(0)               = ?
[pid  3675] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3675, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3618] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3679] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3679] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3679] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3679] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3674] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3674] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3674] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3674] exit_group(0)               = ?
[pid  3674] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3674, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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  3680] close(3)                    = 0
[pid  3680] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3680] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3680] pipe2([3, 4], 0)            = 0
[pid  3680] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3680] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3680] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3680] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3680] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3673] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3673] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3673] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3673] exit_group(0)               = ?
[pid  3673] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3673, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3681
./strace-static-x86_64: Process 3681 attached
[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  3681] write(3, "1000", 4)         = 4
[pid  3681] close(3)                    = 0
[pid  3681] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3681] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3681] pipe2([3, 4], 0)            = 0
[pid  3681] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3681] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3681] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3681] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3681] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3676] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3676] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3676] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3676] exit_group(0)               = ?
[pid  3676] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3676, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3682
./strace-static-x86_64: Process 3682 attached
[pid  3682] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3682] setpgid(0, 0)               = 0
[pid  3678] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3678] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3682] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3678] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3678] fdatasync(-1 <unfinished ...>
[pid  3682] <... openat resumed>)       = 3
[pid  3678] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3678] exit_group(0)               = ?
[pid  3682] write(3, "1000", 4 <unfinished ...>
[pid  3678] +++ exited with 0 +++
[pid  3682] <... write resumed>)        = 4
[pid  3682] close(3 <unfinished ...>
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3678, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3622] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3682] <... close resumed>)        = 0
[pid  3622] <... restart_syscall resumed>) = 0
[pid  3682] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3682] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3682] pipe2( <unfinished ...>
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3682] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3622] close(3 <unfinished ...>
[pid  3682] write(-1, NULL, 0 <unfinished ...>
[pid  3622] <... close resumed>)        = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3682] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3682] write(-1, NULL, 0 <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 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 <unfinished ...>
[pid  3682] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3682] write(-1, NULL, 0 <unfinished ...>
[pid  3683] <... write resumed>)        = 4
[pid  3682] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[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  3682] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3683] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3682] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3683] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3683] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3683] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3683] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3677] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3677] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3677] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3677] exit_group(0)               = ?
[pid  3677] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3677, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3684] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3684] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3684] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3684] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3679] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3679] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3679] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3679] exit_group(0)               = ?
[pid  3679] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3679, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3685] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3685] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3685] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3685] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3681] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3681] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3681] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3681] exit_group(0)               = ?
[pid  3681] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3681, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3686 attached
, child_tidptr=0x555556dbb690) = 3686
[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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3680] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3686] write(-1, NULL, 0 <unfinished ...>
[pid  3680] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3686] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3680] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3686] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3680] fdatasync(-1 <unfinished ...>
[pid  3686] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3680] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3686] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3686] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3680] exit_group(0)               = ?
[pid  3680] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3680, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3687] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3687] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3687] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3687] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3685] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3685] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3685] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3685] exit_group(0)               = ?
[pid  3685] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3685, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3688] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3688] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3688] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3688] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3684] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3684] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3684] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3684] exit_group(0)               = ?
[pid  3684] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3684, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3689] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3689] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3689] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3689] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3682] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3682] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3682] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3682] exit_group(0)               = ?
[pid  3682] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3682, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0 <unfinished ...>
[pid  3683] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3690] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3690] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3683] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3690] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3690] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3690] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3683] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3683] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3683] exit_group(0)               = ?
[pid  3683] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3683, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3691] write(-1, NULL, 0 <unfinished ...>
[pid  3686] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3686] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3686] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3686] exit_group(0)               = ?
[pid  3691] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3686] +++ exited with 0 +++
[pid  3691] write(-1, NULL, 0 <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3686, si_uid=0, si_status=0, si_utime=0, si_stime=4} ---
[pid  3691] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3619] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3691] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3619] <... restart_syscall resumed>) = 0
[pid  3691] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3691] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3692
[pid  3687] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3687] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3687] fdatasync(-1./strace-static-x86_64: Process 3692 attached
)               = -1 EBADF (Bad file descriptor)
[pid  3687] exit_group(0 <unfinished ...>
[pid  3692] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3687] <... exit_group resumed>)   = ?
[pid  3687] +++ exited with 0 +++
[pid  3692] <... prctl resumed>)        = 0
[pid  3692] setpgid(0, 0 <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3687, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3692] <... setpgid resumed>)      = 0
[pid  3617] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3692] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3617] <... restart_syscall resumed>) = 0
[pid  3692] <... openat resumed>)       = 3
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3692] write(3, "1000", 4)         = 4
[pid  3617] <... openat resumed>)       = 3
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3692] close(3 <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] close(3 <unfinished ...>
[pid  3692] <... close resumed>)        = 0
[pid  3692] mkdir("./file0", 0777 <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3693 attached
 <unfinished ...>
[pid  3692] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3692] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3693
[pid  3693] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3692] pipe2( <unfinished ...>
[pid  3693] <... prctl resumed>)        = 0
[pid  3692] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3693] setpgid(0, 0 <unfinished ...>
[pid  3692] write(-1, NULL, 0 <unfinished ...>
[pid  3693] <... setpgid resumed>)      = 0
[pid  3692] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3693] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3692] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3693] <... openat resumed>)       = 3
[pid  3692] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3692] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3692] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3693] write(3, "1000", 4)         = 4
[pid  3693] close(3)                    = 0
[pid  3693] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3693] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3693] pipe2([3, 4], 0)            = 0
[pid  3693] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3693] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3693] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3693] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3693] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3688] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3688] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3688] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3688] exit_group(0)               = ?
[pid  3688] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3688, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3694
./strace-static-x86_64: Process 3694 attached
[pid  3694] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3694] setpgid(0, 0)               = 0
[pid  3694] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3694] write(3, "1000", 4)         = 4
[pid  3694] close(3)                    = 0
[pid  3694] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3694] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3694] pipe2([3, 4], 0)            = 0
[pid  3694] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3694] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3694] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3694] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3694] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3689] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3689] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3689] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3689] exit_group(0)               = ?
[pid  3689] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3689, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3695
./strace-static-x86_64: Process 3695 attached
[pid  3695] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3695] setpgid(0, 0)               = 0
[pid  3695] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3695] write(3, "1000", 4)         = 4
[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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3695] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3695] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3695] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3695] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3690] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3690] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3690] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3690] exit_group(0)               = ?
[pid  3690] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3690, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3696
./strace-static-x86_64: Process 3696 attached
[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
[pid  3696] close(3)                    = 0
[pid  3696] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3696] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3696] pipe2([3, 4], 0)            = 0
[pid  3696] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3696] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3696] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3696] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3696] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3691] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3691] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3691] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3691] exit_group(0)               = ?
[pid  3691] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3691, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3697
./strace-static-x86_64: Process 3697 attached
[pid  3697] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3697] setpgid(0, 0)               = 0
[pid  3697] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3697] write(3, "1000", 4)         = 4
[pid  3697] close(3)                    = 0
[pid  3697] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3697] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3697] pipe2([3, 4], 0)            = 0
[pid  3697] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3697] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3697] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3697] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3697] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3692] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3692] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3692] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3692] exit_group(0)               = ?
[pid  3692] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3692, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3698] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3698] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3698] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3698] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3694] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3694] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3694] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3694] exit_group(0)               = ?
[pid  3694] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3694, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3699
./strace-static-x86_64: Process 3699 attached
[pid  3699] prctl(PR_SET_PDEATHSIG, SIGKILL) = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3699] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3699] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3699] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3699] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3693] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3693] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3693] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3693] exit_group(0)               = ?
[pid  3693] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3693, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3700
./strace-static-x86_64: Process 3700 attached
[pid  3700] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3700] setpgid(0, 0)               = 0
[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  3700] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3700] pipe2([3, 4], 0)            = 0
[pid  3700] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3700] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3700] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3700] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3700] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3695] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3695] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3695] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3695] exit_group(0)               = ?
[pid  3695] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3695, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3620] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3701
./strace-static-x86_64: Process 3701 attached
[pid  3701] prctl(PR_SET_PDEATHSIG, SIGKILL) = 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)         = 4
[pid  3701] close(3)                    = 0
[pid  3701] mkdir("./file0", 0777)      = -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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3701] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3701] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3701] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3701] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3696] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3696] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3696] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3696] exit_group(0)               = ?
[pid  3696] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3696, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3702 attached
 <unfinished ...>
[pid  3702] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3702
[pid  3702] <... prctl resumed>)        = 0
[pid  3702] setpgid(0, 0)               = 0
[pid  3702] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3702] write(3, "1000", 4)         = 4
[pid  3702] close(3)                    = 0
[pid  3702] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3702] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3702] pipe2([3, 4], 0)            = 0
[pid  3702] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3702] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3702] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3702] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3702] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3697] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3697] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3697] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3697] exit_group(0)               = ?
[pid  3697] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3697, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3703
./strace-static-x86_64: Process 3703 attached
[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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3703] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3703] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3703] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3703] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3698] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3698] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3698] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3698] exit_group(0)               = ?
[pid  3698] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3698, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3704
./strace-static-x86_64: Process 3704 attached
[pid  3704] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3704] setpgid(0, 0)               = 0
[pid  3704] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3704] write(3, "1000", 4)         = 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  3704] pipe2([3, 4], 0)            = 0
[pid  3704] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3704] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3704] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3704] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3704] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3699] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3699] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3699] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3699] exit_group(0)               = ?
[pid  3699] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3699, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3705 attached
, child_tidptr=0x555556dbb690) = 3705
[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)      = -1 EEXIST (File exists)
[pid  3705] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3705] pipe2([3, 4], 0)            = 0
[pid  3705] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3705] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3705] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3705] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3705] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3700] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3700] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3700] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3700] exit_group(0)               = ?
[pid  3700] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3700, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3706
[pid  3701] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3701] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3701] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3701] exit_group(0)               = ?
[pid  3701] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3701, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3707
./strace-static-x86_64: Process 3706 attached
[pid  3706] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3706] setpgid(0, 0)               = 0
[pid  3706] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3706] write(3, "1000", 4)         = 4
[pid  3706] close(3)                    = 0
[pid  3706] mkdir("./file0", 0777./strace-static-x86_64: Process 3707 attached
)      = -1 EEXIST (File exists)
[pid  3707] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3706] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3707] <... prctl resumed>)        = 0
[pid  3707] setpgid(0, 0 <unfinished ...>
[pid  3706] pipe2([3, 4], 0)            = 0
[pid  3707] <... setpgid resumed>)      = 0
[pid  3706] write(-1, NULL, 0 <unfinished ...>
[pid  3707] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3706] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3707] <... openat resumed>)       = 3
[pid  3706] write(-1, NULL, 0 <unfinished ...>
[pid  3707] write(3, "1000", 4 <unfinished ...>
[pid  3706] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3707] <... write resumed>)        = 4
[pid  3706] write(-1, NULL, 0 <unfinished ...>
[pid  3707] close(3 <unfinished ...>
[pid  3706] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3707] <... close resumed>)        = 0
[pid  3706] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3707] mkdir("./file0", 0777 <unfinished ...>
[pid  3706] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3707] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3706] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3707] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3707] pipe2([3, 4], 0)            = 0
[pid  3707] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3707] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3707] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3707] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3707] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3702] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3702] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3702] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3702] exit_group(0)               = ?
[pid  3702] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3702, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3708
./strace-static-x86_64: Process 3708 attached
[pid  3708] prctl(PR_SET_PDEATHSIG, SIGKILL) = 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)         = 4
[pid  3708] close(3)                    = 0
[pid  3708] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3708] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3708] pipe2([3, 4], 0)            = 0
[pid  3708] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3708] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3708] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3708] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3708] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3703] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3703] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3703] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3703] exit_group(0 <unfinished ...>
[pid  3704] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3704] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3704] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3704] exit_group(0)               = ?
[pid  3704] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3704, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3619] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3703] <... exit_group resumed>)   = ?
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3703] +++ exited with 0 +++
[pid  3619] close(3 <unfinished ...>
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3703, si_uid=0, si_status=0, si_utime=0, si_stime=3} ---
[pid  3619] <... close resumed>)        = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3709
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3709 attached
)       = -1 ENXIO (No such device or address)
[pid  3709] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3622] close(3 <unfinished ...>
[pid  3709] <... prctl resumed>)        = 0
[pid  3622] <... close resumed>)        = 0
[pid  3709] setpgid(0, 0 <unfinished ...>
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3710 attached
 <unfinished ...>
[pid  3709] <... setpgid resumed>)      = 0
[pid  3710] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3709] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3710
[pid  3710] <... prctl resumed>)        = 0
[pid  3709] <... openat resumed>)       = 3
[pid  3710] setpgid(0, 0 <unfinished ...>
[pid  3709] write(3, "1000", 4 <unfinished ...>
[pid  3710] <... setpgid resumed>)      = 0
[pid  3709] <... write resumed>)        = 4
[pid  3710] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3709] close(3 <unfinished ...>
[pid  3710] <... openat resumed>)       = 3
[pid  3709] <... close resumed>)        = 0
[pid  3710] write(3, "1000", 4 <unfinished ...>
[pid  3709] mkdir("./file0", 0777 <unfinished ...>
[pid  3710] <... write resumed>)        = 4
[pid  3709] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3710] close(3 <unfinished ...>
[pid  3709] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3710] <... close resumed>)        = 0
[pid  3709] pipe2( <unfinished ...>
[pid  3705] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3705] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3705] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3705] exit_group(0)               = ?
[pid  3709] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3709] write(-1, NULL, 0 <unfinished ...>
[pid  3705] +++ exited with 0 +++
[pid  3709] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3710] mkdir("./file0", 0777 <unfinished ...>
[pid  3709] write(-1, NULL, 0 <unfinished ...>
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3705, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3710] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3709] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3710] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3709] write(-1, NULL, 0 <unfinished ...>
[pid  3618] <... restart_syscall resumed>) = 0
[pid  3710] pipe2( <unfinished ...>
[pid  3709] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3710] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3709] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3710] write(-1, NULL, 0 <unfinished ...>
[pid  3709] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3710] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3709] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3710] write(-1, NULL, 0 <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  3710] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3710] write(-1, NULL, 0 <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3710] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3710] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3710] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] close(3 <unfinished ...>
[pid  3710] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3618] <... close resumed>)        = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3711
[pid  3706] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3706] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3706] fdatasync(-1./strace-static-x86_64: Process 3711 attached
)               = -1 EBADF (Bad file descriptor)
[pid  3706] exit_group(0)               = ?
[pid  3711] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3706] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3706, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3712
[pid  3711] <... prctl resumed>)        = 0
[pid  3711] setpgid(0, 0)               = 0
[pid  3711] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
./strace-static-x86_64: Process 3712 attached
[pid  3711] write(3, "1000", 4 <unfinished ...>
[pid  3707] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3712] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3711] <... write resumed>)        = 4
[pid  3707] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3712] <... prctl resumed>)        = 0
[pid  3711] close(3 <unfinished ...>
[pid  3707] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3712] setpgid(0, 0 <unfinished ...>
[pid  3711] <... close resumed>)        = 0
[pid  3707] fdatasync(-1 <unfinished ...>
[pid  3712] <... setpgid resumed>)      = 0
[pid  3711] mkdir("./file0", 0777 <unfinished ...>
[pid  3707] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3712] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3711] <... mkdir resumed>)        = -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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3711] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3707] exit_group(0 <unfinished ...>
[pid  3712] <... openat resumed>)       = 3
[pid  3711] write(-1, NULL, 0 <unfinished ...>
[pid  3707] <... exit_group resumed>)   = ?
[pid  3712] write(3, "1000", 4 <unfinished ...>
[pid  3711] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3711] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3707] +++ exited with 0 +++
[pid  3712] <... write resumed>)        = 4
[pid  3712] close(3 <unfinished ...>
[pid  3711] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3707, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3712] <... close resumed>)        = 0
[pid  3711] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3712] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3712] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3708] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] <... openat resumed>)       = 3
[pid  3712] pipe2( <unfinished ...>
[pid  3708] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3712] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3708] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3712] write(-1, NULL, 0 <unfinished ...>
[pid  3708] fdatasync(-1 <unfinished ...>
[pid  3620] close(3 <unfinished ...>
[pid  3712] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3708] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3620] <... close resumed>)        = 0
[pid  3712] write(-1, NULL, 0 <unfinished ...>
[pid  3708] exit_group(0 <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3712] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3708] <... exit_group resumed>)   = ?
[pid  3712] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3713
[pid  3712] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3708] +++ exited with 0 +++
[pid  3712] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3712] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3708, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3714
./strace-static-x86_64: Process 3713 attached
[pid  3713] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 3714 attached
) = 0
[pid  3713] setpgid(0, 0 <unfinished ...>
[pid  3714] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3713] <... setpgid resumed>)      = 0
[pid  3714] <... prctl resumed>)        = 0
[pid  3713] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3714] setpgid(0, 0 <unfinished ...>
[pid  3713] <... openat resumed>)       = 3
[pid  3714] <... setpgid resumed>)      = 0
[pid  3713] write(3, "1000", 4 <unfinished ...>
[pid  3714] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3713] <... write resumed>)        = 4
[pid  3714] <... openat resumed>)       = 3
[pid  3713] close(3 <unfinished ...>
[pid  3714] write(3, "1000", 4 <unfinished ...>
[pid  3713] <... close resumed>)        = 0
[pid  3714] <... write resumed>)        = 4
[pid  3713] mkdir("./file0", 0777 <unfinished ...>
[pid  3714] close(3 <unfinished ...>
[pid  3713] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3714] <... close resumed>)        = 0
[pid  3713] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3714] mkdir("./file0", 0777 <unfinished ...>
[pid  3713] pipe2( <unfinished ...>
[pid  3714] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3713] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3714] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3713] write(-1, NULL, 0 <unfinished ...>
[pid  3714] pipe2( <unfinished ...>
[pid  3713] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3714] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3713] write(-1, NULL, 0 <unfinished ...>
[pid  3714] write(-1, NULL, 0 <unfinished ...>
[pid  3713] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3714] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3713] write(-1, NULL, 0 <unfinished ...>
[pid  3714] write(-1, NULL, 0 <unfinished ...>
[pid  3713] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3714] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3713] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3714] write(-1, NULL, 0 <unfinished ...>
[pid  3713] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3714] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3713] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3714] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3714] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3711] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3711] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3711] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3711] exit_group(0)               = ?
[pid  3711] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3711, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3715
./strace-static-x86_64: Process 3715 attached
[pid  3709] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3709] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3709] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3709] exit_group(0)               = ?
[pid  3709] +++ exited with 0 +++
[pid  3715] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3709, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3715] <... prctl resumed>)        = 0
[pid  3715] setpgid(0, 0)               = 0
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3715] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3619] <... openat resumed>)       = 3
[pid  3715] <... openat resumed>)       = 3
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3715] write(3, "1000", 4 <unfinished ...>
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3715] <... write resumed>)        = 4
[pid  3619] close(3 <unfinished ...>
[pid  3715] close(3 <unfinished ...>
[pid  3619] <... close resumed>)        = 0
[pid  3715] <... close resumed>)        = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3715] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3715] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3716
[pid  3715] pipe2([3, 4], 0)            = 0
[pid  3715] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3715] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3715] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3715] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3715] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3716 attached
 <unfinished ...>
[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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3716] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3716] write(-1, NULL, 0 <unfinished ...>
[pid  3710] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3710] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3710] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3710] exit_group(0)               = ?
[pid  3710] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3710, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3716] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... openat resumed>)       = 3
[pid  3716] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3716] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3717
[pid  3716] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3717 attached
 <unfinished ...>
[pid  3715] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3715] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3715] fdatasync(-1 <unfinished ...>
[pid  3717] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3715] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3717] <... prctl resumed>)        = 0
[pid  3715] exit_group(0)               = ?
[pid  3715] +++ exited with 0 +++
[pid  3717] setpgid(0, 0 <unfinished ...>
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3715, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3717] <... setpgid resumed>)      = 0
[pid  3618] <... restart_syscall resumed>) = 0
[pid  3717] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3717] write(3, "1000", 4 <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3717] <... write resumed>)        = 4
[pid  3618] <... openat resumed>)       = 3
[pid  3717] close(3 <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3717] <... close resumed>)        = 0
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3717] mkdir("./file0", 0777 <unfinished ...>
[pid  3618] close(3 <unfinished ...>
[pid  3717] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3618] <... close resumed>)        = 0
[pid  3717] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3717] pipe2([3, 4], 0)            = 0
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3718
[pid  3717] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3717] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3717] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3717] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3712] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3717] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3712] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3717] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3712] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3712] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3712] exit_group(0)               = ?
[pid  3712] +++ exited with 0 +++
./strace-static-x86_64: Process 3718 attached
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3712, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3718] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3617] <... restart_syscall resumed>) = 0
[pid  3718] <... prctl resumed>)        = 0
[pid  3718] setpgid(0, 0)               = 0
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3718] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3718] <... openat resumed>)       = 3
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3718] write(3, "1000", 4 <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3719
[pid  3718] <... write resumed>)        = 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  3714] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3718] pipe2( <unfinished ...>
[pid  3714] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3718] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3714] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3718] write(-1, NULL, 0 <unfinished ...>
[pid  3714] fdatasync(-1 <unfinished ...>
[pid  3718] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3718] write(-1, NULL, 0 <unfinished ...>
[pid  3714] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3718] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3718] write(-1, NULL, 0 <unfinished ...>
[pid  3714] exit_group(0./strace-static-x86_64: Process 3719 attached
 <unfinished ...>
[pid  3718] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3714] <... exit_group resumed>)   = ?
[pid  3718] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3718] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3714] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3714, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3719] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3719] <... prctl resumed>)        = 0
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3719] setpgid(0, 0 <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3719] <... setpgid resumed>)      = 0
[pid  3616] close(3 <unfinished ...>
[pid  3719] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3713] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3616] <... close resumed>)        = 0
[pid  3719] <... openat resumed>)       = 3
[pid  3713] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3720 attached
 <unfinished ...>
[pid  3719] write(3, "1000", 4 <unfinished ...>
[pid  3713] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3719] <... write resumed>)        = 4
[pid  3713] fdatasync(-1 <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3720
[pid  3720] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3719] close(3 <unfinished ...>
[pid  3713] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3720] <... prctl resumed>)        = 0
[pid  3719] <... close resumed>)        = 0
[pid  3713] exit_group(0 <unfinished ...>
[pid  3720] setpgid(0, 0 <unfinished ...>
[pid  3719] mkdir("./file0", 0777 <unfinished ...>
[pid  3713] <... exit_group resumed>)   = ?
[pid  3720] <... setpgid resumed>)      = 0
[pid  3719] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3713] +++ exited with 0 +++
[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  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3713, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[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] write(-1, NULL, 0 <unfinished ...>
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3720] close(3 <unfinished ...>
[pid  3719] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] <... openat resumed>)       = 3
[pid  3720] <... close resumed>)        = 0
[pid  3719] write(-1, NULL, 0 <unfinished ...>
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3720] mkdir("./file0", 0777 <unfinished ...>
[pid  3719] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3720] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3719] write(-1, NULL, 0 <unfinished ...>
[pid  3620] close(3 <unfinished ...>
[pid  3720] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3719] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] <... close resumed>)        = 0
[pid  3720] pipe2( <unfinished ...>
[pid  3719] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3720] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3719] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3720] write(-1, NULL, 0 <unfinished ...>
[pid  3719] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3721
[pid  3720] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3720] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3720] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3720] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3720] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3721 attached
 <unfinished ...>
[pid  3721] prctl(PR_SET_PDEATHSIG, SIGKILL) = 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)      = -1 EEXIST (File exists)
[pid  3721] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3721] pipe2([3, 4], 0)            = 0
[pid  3721] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3721] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3721] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3721] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3721] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3716] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3716] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3716] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3716] exit_group(0)               = ?
[pid  3716] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3716, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3722
./strace-static-x86_64: Process 3722 attached
[pid  3722] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3722] setpgid(0, 0)               = 0
[pid  3722] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3722] write(3, "1000", 4)         = 4
[pid  3722] close(3)                    = 0
[pid  3722] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3722] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3722] pipe2([3, 4], 0)            = 0
[pid  3722] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3722] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3722] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3722] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3722] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3717] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3717] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3717] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3717] exit_group(0)               = ?
[pid  3717] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3717, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3723 attached
, child_tidptr=0x555556dbb690) = 3723
[pid  3723] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3723] setpgid(0, 0)               = 0
[pid  3723] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3723] write(3, "1000", 4)         = 4
[pid  3723] close(3)                    = 0
[pid  3723] mkdir("./file0", 0777 <unfinished ...>
[pid  3718] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3723] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3723] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3718] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3723] pipe2([3, 4], 0)            = 0
[pid  3718] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3723] write(-1, NULL, 0 <unfinished ...>
[pid  3718] exit_group(0 <unfinished ...>
[pid  3723] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3718] <... exit_group resumed>)   = ?
[pid  3723] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3723] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3723] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3723] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3718] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3718, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3724
./strace-static-x86_64: Process 3724 attached
[pid  3724] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3722] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3724] setpgid(0, 0)               = 0
[pid  3724] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3722] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3724] <... openat resumed>)       = 3
[pid  3722] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3724] write(3, "1000", 4 <unfinished ...>
[pid  3722] fdatasync(-1 <unfinished ...>
[pid  3724] <... write resumed>)        = 4
[pid  3722] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3724] close(3 <unfinished ...>
[pid  3722] exit_group(0 <unfinished ...>
[pid  3724] <... close resumed>)        = 0
[pid  3722] <... exit_group resumed>)   = ?
[pid  3724] mkdir("./file0", 0777 <unfinished ...>
[pid  3722] +++ exited with 0 +++
[pid  3724] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3724] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3724] pipe2([3, 4], 0)            = 0
[pid  3724] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3724] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3724] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3724] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3724] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3722, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3725
./strace-static-x86_64: Process 3725 attached
[pid  3721] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3725] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3721] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3725] <... prctl resumed>)        = 0
[pid  3721] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3725] setpgid(0, 0 <unfinished ...>
[pid  3721] fdatasync(-1 <unfinished ...>
[pid  3725] <... setpgid resumed>)      = 0
[pid  3721] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3725] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3721] exit_group(0 <unfinished ...>
[pid  3725] <... openat resumed>)       = 3
[pid  3721] <... exit_group resumed>)   = ?
[pid  3725] write(3, "1000", 4 <unfinished ...>
[pid  3721] +++ exited with 0 +++
[pid  3725] <... write resumed>)        = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3725] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3725] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3725] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3725] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3721, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3719] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3719] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3719] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3719] exit_group(0)               = ?
[pid  3719] +++ exited with 0 +++
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3719, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3726
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3727
./strace-static-x86_64: Process 3726 attached
[pid  3726] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3726] setpgid(0, 0)               = 0
[pid  3726] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3726] write(3, "1000", 4)         = 4
[pid  3726] close(3)                    = 0
[pid  3726] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3726] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3726] pipe2([3, 4], 0)            = 0
[pid  3726] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3726] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3726] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3726] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3726] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3727 attached
 <unfinished ...>
[pid  3727] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3727] setpgid(0, 0)               = 0
[pid  3727] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3727] write(3, "1000", 4)         = 4
[pid  3727] close(3)                    = 0
[pid  3727] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3727] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3727] pipe2([3, 4], 0)            = 0
[pid  3727] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3727] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3727] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3727] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3727] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3720] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3720] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3720] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3720] exit_group(0)               = ?
[pid  3720] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3720, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3728
./strace-static-x86_64: Process 3728 attached
[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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3728] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3728] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3728] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3728] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3723] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3723] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3723] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3723] exit_group(0)               = ?
[pid  3723] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3723, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3622] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3726] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3726] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3726] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3726] exit_group(0 <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3726] <... exit_group resumed>)   = ?
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3726] +++ exited with 0 +++
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3622] close(3 <unfinished ...>
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3726, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3622] <... close resumed>)        = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3729
./strace-static-x86_64: Process 3729 attached
[pid  3620] <... openat resumed>)       = 3
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3729] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3729] setpgid(0, 0)               = 0
[pid  3729] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3729] <... openat resumed>)       = 3
[pid  3729] write(3, "1000", 4)         = 4
[pid  3729] close(3 <unfinished ...>
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3730
[pid  3729] <... close resumed>)        = 0
[pid  3729] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3729] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3729] pipe2([3, 4], 0)            = 0
[pid  3729] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3729] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3729] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3729] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3729] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3730 attached
 <unfinished ...>
[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  3730] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3730] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3730] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3730] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3730] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3724] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3724] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3725] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3725] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3725] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3725] exit_group(0)               = ?
[pid  3725] +++ exited with 0 +++
[pid  3724] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3724] exit_group(0)               = ?
[pid  3724] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3725, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3724, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3731
./strace-static-x86_64: Process 3731 attached
[pid  3731] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3731] <... prctl resumed>)        = 0
[pid  3731] setpgid(0, 0)               = 0
[pid  3731] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3732
[pid  3731] <... openat resumed>)       = 3
[pid  3731] write(3, "1000", 4)         = 4
[pid  3731] close(3)                    = 0
[pid  3731] mkdir("./file0", 0777)      = -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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3731] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3731] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3731] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3731] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3732 attached
 <unfinished ...>
[pid  3727] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3732] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3727] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3732] <... prctl resumed>)        = 0
[pid  3727] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3732] setpgid(0, 0 <unfinished ...>
[pid  3727] fdatasync(-1 <unfinished ...>
[pid  3732] <... setpgid resumed>)      = 0
[pid  3727] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3732] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3727] exit_group(0 <unfinished ...>
[pid  3732] <... openat resumed>)       = 3
[pid  3727] <... exit_group resumed>)   = ?
[pid  3732] write(3, "1000", 4 <unfinished ...>
[pid  3727] +++ exited with 0 +++
[pid  3732] <... write resumed>)        = 4
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3727, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3732] close(3)                    = 0
[pid  3732] mkdir("./file0", 0777 <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3732] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3617] <... openat resumed>)       = 3
[pid  3732] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3732] pipe2( <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3732] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3617] close(3 <unfinished ...>
[pid  3732] write(-1, NULL, 0 <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3732] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3732] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3733
[pid  3732] write(-1, NULL, 0 <unfinished ...>
[pid  3728] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3732] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3728] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3732] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3732] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3728] <... openat resumed>)       = -1 EFAULT (Bad address)
./strace-static-x86_64: Process 3733 attached
[pid  3728] fdatasync(-1 <unfinished ...>
[pid  3733] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3728] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3733] <... prctl resumed>)        = 0
[pid  3729] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3728] exit_group(0 <unfinished ...>
[pid  3733] setpgid(0, 0 <unfinished ...>
[pid  3728] <... exit_group resumed>)   = ?
[pid  3733] <... setpgid resumed>)      = 0
[pid  3729] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3728] +++ exited with 0 +++
[pid  3733] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3729] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3728, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3733] <... openat resumed>)       = 3
[pid  3729] fdatasync(-1 <unfinished ...>
[pid  3616] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3733] write(3, "1000", 4 <unfinished ...>
[pid  3729] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3616] <... restart_syscall resumed>) = 0
[pid  3733] <... write resumed>)        = 4
[pid  3729] exit_group(0 <unfinished ...>
[pid  3733] close(3 <unfinished ...>
[pid  3729] <... exit_group resumed>)   = ?
[pid  3733] <... close resumed>)        = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3733] mkdir("./file0", 0777 <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
[pid  3733] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3733] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3729] +++ exited with 0 +++
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3733] pipe2( <unfinished ...>
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3729, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3734
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3735
./strace-static-x86_64: Process 3734 attached
[pid  3734] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3733] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3733] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3733] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3733] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3733] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3733] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3735 attached
 <unfinished ...>
[pid  3734] <... prctl resumed>)        = 0
[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 <unfinished ...>
[pid  3734] setpgid(0, 0 <unfinished ...>
[pid  3735] <... openat resumed>)       = 3
[pid  3734] <... setpgid resumed>)      = 0
[pid  3734] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3735] write(3, "1000", 4 <unfinished ...>
[pid  3734] <... openat resumed>)       = 3
[pid  3735] <... write resumed>)        = 4
[pid  3734] write(3, "1000", 4 <unfinished ...>
[pid  3735] close(3 <unfinished ...>
[pid  3734] <... write resumed>)        = 4
[pid  3735] <... close resumed>)        = 0
[pid  3734] close(3 <unfinished ...>
[pid  3735] mkdir("./file0", 0777 <unfinished ...>
[pid  3734] <... close resumed>)        = 0
[pid  3735] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3734] mkdir("./file0", 0777 <unfinished ...>
[pid  3731] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3735] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3731] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3735] pipe2( <unfinished ...>
[pid  3731] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3735] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3731] fdatasync(-1 <unfinished ...>
[pid  3735] write(-1, NULL, 0 <unfinished ...>
[pid  3731] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3735] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3731] exit_group(0 <unfinished ...>
[pid  3735] write(-1, NULL, 0 <unfinished ...>
[pid  3731] <... exit_group resumed>)   = ?
[pid  3735] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3731] +++ exited with 0 +++
[pid  3735] write(-1, NULL, 0 <unfinished ...>
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3731, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3735] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3735] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3735] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3736
./strace-static-x86_64: Process 3736 attached
[pid  3734] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3734] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3734] pipe2([3, 4], 0)            = 0
[pid  3736] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3734] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3734] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3734] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3736] <... prctl resumed>)        = 0
[pid  3734] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3736] setpgid(0, 0)               = 0
[pid  3734] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[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  3736] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3736] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3736] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3736] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3736] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3730] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3730] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3730] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3730] exit_group(0)               = ?
[pid  3730] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3730, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3732] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3737 attached
 <unfinished ...>
[pid  3732] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3737] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3732] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3737
[pid  3737] <... prctl resumed>)        = 0
[pid  3732] fdatasync(-1 <unfinished ...>
[pid  3737] setpgid(0, 0 <unfinished ...>
[pid  3732] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3737] <... setpgid resumed>)      = 0
[pid  3732] exit_group(0 <unfinished ...>
[pid  3737] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3732] <... exit_group resumed>)   = ?
[pid  3737] <... openat resumed>)       = 3
[pid  3732] +++ exited with 0 +++
[pid  3737] write(3, "1000", 4 <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3732, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3737] <... write resumed>)        = 4
[pid  3737] close(3)                    = 0
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3737] mkdir("./file0", 0777 <unfinished ...>
[pid  3619] <... openat resumed>)       = 3
[pid  3737] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3737] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3737] pipe2( <unfinished ...>
[pid  3619] close(3 <unfinished ...>
[pid  3737] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3619] <... close resumed>)        = 0
[pid  3737] write(-1, NULL, 0 <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3737] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3737] write(-1, NULL, 0 <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3738
[pid  3737] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3737] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3737] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3737] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3738 attached
 <unfinished ...>
[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)      = -1 EEXIST (File exists)
[pid  3738] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3738] pipe2([3, 4], 0)            = 0
[pid  3738] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3738] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3738] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3738] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3738] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3733] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3733] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3733] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3733] exit_group(0)               = ?
[pid  3733] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3733, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3739
./strace-static-x86_64: Process 3739 attached
[pid  3739] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3739] setpgid(0, 0)               = 0
[pid  3739] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3735] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3735] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3735] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3735] exit_group(0)               = ?
[pid  3735] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3735, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3622] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3 <unfinished ...>
[pid  3739] <... openat resumed>)       = 3
[pid  3622] <... close resumed>)        = 0
[pid  3739] write(3, "1000", 4 <unfinished ...>
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3739] <... write resumed>)        = 4
[pid  3739] close(3 <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3740
[pid  3739] <... close resumed>)        = 0
[pid  3739] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3739] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3739] pipe2([3, 4], 0)            = 0
[pid  3739] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3739] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3739] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3739] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
./strace-static-x86_64: Process 3740 attached
[pid  3739] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3740] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3740] setpgid(0, 0)               = 0
[pid  3740] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3740] write(3, "1000", 4 <unfinished ...>
[pid  3734] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3740] <... write resumed>)        = 4
[pid  3740] close(3)                    = 0
[pid  3740] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3740] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3740] pipe2([3, 4], 0)            = 0
[pid  3740] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3740] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3740] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3740] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3740] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3734] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3734] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3734] exit_group(0)               = ?
[pid  3734] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3734, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3736] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3736] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3736] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3736] exit_group(0 <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3736] <... exit_group resumed>)   = ?
[pid  3616] <... openat resumed>)       = 3
[pid  3736] +++ exited with 0 +++
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3736, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] close(3 <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3618] <... openat resumed>)       = 3
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3741
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3742
./strace-static-x86_64: Process 3742 attached
[pid  3742] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3742] setpgid(0, 0)               = 0
./strace-static-x86_64: Process 3741 attached
[pid  3742] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3741] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3742] write(3, "1000", 4 <unfinished ...>
[pid  3741] <... prctl resumed>)        = 0
[pid  3742] <... write resumed>)        = 4
[pid  3741] setpgid(0, 0 <unfinished ...>
[pid  3742] close(3 <unfinished ...>
[pid  3741] <... setpgid resumed>)      = 0
[pid  3742] <... close resumed>)        = 0
[pid  3741] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3742] mkdir("./file0", 0777 <unfinished ...>
[pid  3741] <... openat resumed>)       = 3
[pid  3742] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3741] write(3, "1000", 4 <unfinished ...>
[pid  3742] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3741] <... write resumed>)        = 4
[pid  3742] pipe2( <unfinished ...>
[pid  3741] close(3 <unfinished ...>
[pid  3742] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3741] <... close resumed>)        = 0
[pid  3742] write(-1, NULL, 0 <unfinished ...>
[pid  3741] mkdir("./file0", 0777 <unfinished ...>
[pid  3742] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3741] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3742] write(-1, NULL, 0 <unfinished ...>
[pid  3741] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3742] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3742] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3742] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3742] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3741] pipe2([3, 4], 0)            = 0
[pid  3741] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3741] write(-1, NULL, 0 <unfinished ...>
[pid  3737] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3741] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3737] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3741] write(-1, NULL, 0 <unfinished ...>
[pid  3737] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3741] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3737] fdatasync(-1 <unfinished ...>
[pid  3741] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3737] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3741] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3741] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3737] exit_group(0)               = ?
[pid  3737] +++ exited with 0 +++
[pid  3738] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3738] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3738] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3738] exit_group(0)               = ?
[pid  3738] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3737, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3738, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3743
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3744 attached
, child_tidptr=0x555556dbb690) = 3744
[pid  3744] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3744] setpgid(0, 0)               = 0
[pid  3744] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3744] write(3, "1000", 4)         = 4
[pid  3744] close(3)                    = 0
[pid  3744] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3744] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
./strace-static-x86_64: Process 3743 attached
[pid  3744] pipe2([3, 4], 0)            = 0
[pid  3744] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3744] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3744] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3744] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3743] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3744] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3743] <... prctl resumed>)        = 0
[pid  3739] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3744] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3743] setpgid(0, 0 <unfinished ...>
[pid  3739] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3743] <... setpgid resumed>)      = 0
[pid  3739] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3743] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3739] fdatasync(-1 <unfinished ...>
[pid  3743] <... openat resumed>)       = 3
[pid  3739] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3743] write(3, "1000", 4 <unfinished ...>
[pid  3739] exit_group(0 <unfinished ...>
[pid  3743] <... write resumed>)        = 4
[pid  3739] <... exit_group resumed>)   = ?
[pid  3743] close(3)                    = 0
[pid  3739] +++ exited with 0 +++
[pid  3743] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3739, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3743] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3743] pipe2([3, 4], 0)            = 0
[pid  3617] <... restart_syscall resumed>) = 0
[pid  3743] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3743] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3743] write(-1, NULL, 0 <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3743] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3743] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3743] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3743] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3745
./strace-static-x86_64: Process 3745 attached
[pid  3745] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3745] setpgid(0, 0)               = 0
[pid  3745] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3745] write(3, "1000", 4)         = 4
[pid  3745] close(3)                    = 0
[pid  3745] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3745] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3745] pipe2([3, 4], 0)            = 0
[pid  3745] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3745] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3740] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3740] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3740] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3740] exit_group(0)               = ?
[pid  3740] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3740, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3746 attached
, child_tidptr=0x555556dbb690) = 3746
[pid  3746] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3746] setpgid(0, 0 <unfinished ...>
[pid  3745] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3745] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3746] <... setpgid resumed>)      = 0
[pid  3745] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3746] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3746] write(3, "1000", 4)         = 4
[pid  3746] close(3)                    = 0
[pid  3746] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3746] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3746] pipe2([3, 4], 0)            = 0
[pid  3746] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3746] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3746] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3746] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3746] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3742] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3742] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3742] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3742] exit_group(0)               = ?
[pid  3742] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3742, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3747
./strace-static-x86_64: Process 3747 attached
[pid  3747] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3747] setpgid(0, 0)               = 0
[pid  3747] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3747] write(3, "1000", 4)         = 4
[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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3747] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3747] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3747] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3747] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3741] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3741] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3741] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3741] exit_group(0)               = ?
[pid  3741] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3741, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3744] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3744] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3744] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3744] exit_group(0)               = ?
[pid  3744] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3744, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3748
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3743] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3743] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3743] fdatasync(-1 <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3749
[pid  3743] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3743] exit_group(0)               = ?
[pid  3743] +++ exited with 0 +++
./strace-static-x86_64: Process 3749 attached
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3743, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD <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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3749] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3749] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3749] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3749] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3750 attached
 <unfinished ...>
[pid  3750] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3750
[pid  3750] <... prctl resumed>)        = 0
[pid  3750] setpgid(0, 0)               = 0
[pid  3750] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3750] write(3, "1000", 4)         = 4
[pid  3750] close(3)                    = 0
[pid  3750] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3750] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3750] pipe2([3, 4], 0)            = 0
[pid  3750] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3750] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3750] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3750] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80./strace-static-x86_64: Process 3748 attached
) = -1 EBADF (Bad file descriptor)
[pid  3750] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3748] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3748] setpgid(0, 0)               = 0
[pid  3748] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3748] write(3, "1000", 4)         = 4
[pid  3748] close(3)                    = 0
[pid  3748] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3748] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3748] pipe2([3, 4], 0)            = 0
[pid  3748] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3748] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3748] write(-1, NULL, 0 <unfinished ...>
[pid  3746] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3748] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3746] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3748] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3746] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3748] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3746] fdatasync(-1 <unfinished ...>
[pid  3748] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3746] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3746] exit_group(0)               = ?
[pid  3746] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3746, si_uid=0, si_status=0, si_utime=1, si_stime=2} ---
[pid  3622] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3751
./strace-static-x86_64: Process 3751 attached
[pid  3745] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3745] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3745] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3745] exit_group(0)               = ?
[pid  3745] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3745, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3751] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3751] setpgid(0, 0 <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3751] <... setpgid resumed>)      = 0
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3751] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3751] write(3, "1000", 4 <unfinished ...>
[pid  3617] close(3)                    = 0
[pid  3751] <... write resumed>)        = 4
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[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
[pid  3751] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3751] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3751] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3751] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3751] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3752
./strace-static-x86_64: Process 3752 attached
[pid  3752] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3752] setpgid(0, 0)               = 0
[pid  3752] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3752] write(3, "1000", 4)         = 4
[pid  3752] close(3)                    = 0
[pid  3752] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3752] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3752] pipe2([3, 4], 0)            = 0
[pid  3752] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3752] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3752] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3752] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3747] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3747] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3752] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3752] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3747] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3747] exit_group(0)               = ?
[pid  3747] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3747, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3753
./strace-static-x86_64: Process 3753 attached
[pid  3753] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3749] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3753] <... prctl resumed>)        = 0
[pid  3749] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3753] setpgid(0, 0)               = 0
[pid  3753] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3753] write(3, "1000", 4)         = 4
[pid  3753] close(3)                    = 0
[pid  3753] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3753] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3753] pipe2( <unfinished ...>
[pid  3749] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3753] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3749] fdatasync(-1 <unfinished ...>
[pid  3753] write(-1, NULL, 0 <unfinished ...>
[pid  3749] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3753] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3753] write(-1, NULL, 0 <unfinished ...>
[pid  3749] exit_group(0 <unfinished ...>
[pid  3753] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3753] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3749] <... exit_group resumed>)   = ?
[pid  3753] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3753] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3749] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3749, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3619] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3754
./strace-static-x86_64: Process 3754 attached
[pid  3754] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3754] setpgid(0, 0)               = 0
[pid  3754] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3754] write(3, "1000", 4)         = 4
[pid  3748] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3754] close(3)                    = 0
[pid  3754] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3754] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3754] pipe2([3, 4], 0)            = 0
[pid  3754] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3754] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3754] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3754] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3754] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3748] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3748] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3748] exit_group(0)               = ?
[pid  3748] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3748, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3755
./strace-static-x86_64: Process 3755 attached
[pid  3755] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3755] setpgid(0, 0)               = 0
[pid  3755] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3755] write(3, "1000", 4)         = 4
[pid  3755] close(3)                    = 0
[pid  3755] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3755] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3755] pipe2([3, 4], 0)            = 0
[pid  3755] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3755] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3755] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3755] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3755] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3750] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3750] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3750] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3750] exit_group(0)               = ?
[pid  3750] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3750, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3756 attached
, child_tidptr=0x555556dbb690) = 3756
[pid  3756] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3751] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3751] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3751] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3751] exit_group(0)               = ?
[pid  3751] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3751, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3757
./strace-static-x86_64: Process 3757 attached
[pid  3756] setpgid(0, 0 <unfinished ...>
[pid  3757] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3756] <... setpgid resumed>)      = 0
[pid  3756] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3757] <... prctl resumed>)        = 0
[pid  3757] setpgid(0, 0)               = 0
[pid  3756] <... openat resumed>)       = 3
[pid  3757] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3756] write(3, "1000", 4 <unfinished ...>
[pid  3757] <... openat resumed>)       = 3
[pid  3756] <... write resumed>)        = 4
[pid  3757] write(3, "1000", 4)         = 4
[pid  3756] close(3 <unfinished ...>
[pid  3757] close(3)                    = 0
[pid  3756] <... close resumed>)        = 0
[pid  3757] mkdir("./file0", 0777 <unfinished ...>
[pid  3756] mkdir("./file0", 0777 <unfinished ...>
[pid  3757] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3756] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3757] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3756] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3757] pipe2( <unfinished ...>
[pid  3756] pipe2( <unfinished ...>
[pid  3757] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3756] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3757] write(-1, NULL, 0 <unfinished ...>
[pid  3756] write(-1, NULL, 0 <unfinished ...>
[pid  3757] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3756] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3757] write(-1, NULL, 0 <unfinished ...>
[pid  3756] write(-1, NULL, 0 <unfinished ...>
[pid  3757] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3757] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3757] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3757] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3756] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3756] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3756] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3756] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3755] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3755] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3755] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3755] exit_group(0)               = ?
[pid  3755] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3755, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3758
./strace-static-x86_64: Process 3758 attached
[pid  3758] prctl(PR_SET_PDEATHSIG, SIGKILL) = 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  3758] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3758] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3758] pipe2([3, 4], 0)            = 0
[pid  3758] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3758] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3758] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3758] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3758] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3752] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3752] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3752] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3752] exit_group(0)               = ?
[pid  3752] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3752, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3759
[pid  3754] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3754] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
./strace-static-x86_64: Process 3759 attached
[pid  3759] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3759] setpgid(0, 0 <unfinished ...>
[pid  3754] fdatasync(-1 <unfinished ...>
[pid  3759] <... setpgid resumed>)      = 0
[pid  3754] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3759] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3754] exit_group(0 <unfinished ...>
[pid  3759] <... openat resumed>)       = 3
[pid  3754] <... exit_group resumed>)   = ?
[pid  3759] write(3, "1000", 4 <unfinished ...>
[pid  3754] +++ exited with 0 +++
[pid  3759] <... write resumed>)        = 4
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3754, si_uid=0, si_status=0, si_utime=1, si_stime=2} ---
[pid  3759] close(3)                    = 0
[pid  3759] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3759] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3759] pipe2([3, 4], 0)            = 0
[pid  3759] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3759] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3759] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3619] <... openat resumed>)       = 3
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3759] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3759] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3760
./strace-static-x86_64: Process 3760 attached
[pid  3760] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3760] setpgid(0, 0)               = 0
[pid  3760] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3760] write(3, "1000", 4)         = 4
[pid  3760] close(3)                    = 0
[pid  3760] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3760] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3760] pipe2([3, 4], 0)            = 0
[pid  3760] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3760] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3760] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3760] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3760] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3753] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3753] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3753] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3753] exit_group(0)               = ?
[pid  3753] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3753, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3761
./strace-static-x86_64: Process 3761 attached
[pid  3761] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3761] setpgid(0, 0)               = 0
[pid  3761] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3761] write(3, "1000", 4)         = 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] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3761] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3761] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3761] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3761] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3757] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3757] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3757] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3757] exit_group(0)               = ?
[pid  3757] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3757, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3762
./strace-static-x86_64: Process 3762 attached
[pid  3762] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3762] setpgid(0, 0)               = 0
[pid  3762] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3762] write(3, "1000", 4)         = 4
[pid  3762] close(3)                    = 0
[pid  3758] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3762] mkdir("./file0", 0777 <unfinished ...>
[pid  3758] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3762] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3758] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3762] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3758] fdatasync(-1 <unfinished ...>
[pid  3762] pipe2( <unfinished ...>
[pid  3758] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3762] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3758] exit_group(0 <unfinished ...>
[pid  3762] write(-1, NULL, 0 <unfinished ...>
[pid  3758] <... exit_group resumed>)   = ?
[pid  3762] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3758] +++ exited with 0 +++
[pid  3762] write(-1, NULL, 0 <unfinished ...>
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3758, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3762] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3616] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3762] write(-1, NULL, 0 <unfinished ...>
[pid  3759] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3762] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3759] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3616] <... restart_syscall resumed>) = 0
[pid  3762] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3759] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3762] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3759] fdatasync(-1 <unfinished ...>
[pid  3762] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3759] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3759] exit_group(0 <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3759] <... exit_group resumed>)   = ?
[pid  3759] +++ exited with 0 +++
[pid  3616] <... openat resumed>)       = 3
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3759, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3 <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3617] <... openat resumed>)       = 3
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3763
[pid  3617] close(3./strace-static-x86_64: Process 3763 attached
)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3764
[pid  3763] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3763] setpgid(0, 0)               = 0
[pid  3763] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3763] write(3, "1000", 4)         = 4
[pid  3763] close(3)                    = 0
[pid  3763] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3763] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3763] pipe2([3, 4], 0)            = 0
[pid  3763] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3763] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3763] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3763] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3763] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3764 attached
 <unfinished ...>
[pid  3756] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3756] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3764] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3756] fdatasync(-1 <unfinished ...>
[pid  3764] <... prctl resumed>)        = 0
[pid  3756] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3764] setpgid(0, 0 <unfinished ...>
[pid  3756] exit_group(0 <unfinished ...>
[pid  3764] <... setpgid resumed>)      = 0
[pid  3756] <... exit_group resumed>)   = ?
[pid  3764] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3756] +++ exited with 0 +++
[pid  3764] <... openat resumed>)       = 3
[pid  3764] write(3, "1000", 4)         = 4
[pid  3764] close(3)                    = 0
[pid  3764] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3764] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3764] pipe2([3, 4], 0)            = 0
[pid  3764] write(-1, NULL, 0 <unfinished ...>
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3756, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3764] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3764] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3764] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3620] <... openat resumed>)       = 3
[pid  3764] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3764] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3764] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3760] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3760] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3760] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3760] exit_group(0)               = ?
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3760] +++ exited with 0 +++
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3760, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3765
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3766
./strace-static-x86_64: Process 3766 attached
[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) = 3
[pid  3766] write(3, "1000", 4)         = 4
[pid  3766] close(3)                    = 0
[pid  3766] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3766] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3766] pipe2([3, 4], 0)            = 0
./strace-static-x86_64: Process 3765 attached
[pid  3766] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3765] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3761] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3766] write(-1, NULL, 0 <unfinished ...>
[pid  3765] <... prctl resumed>)        = 0
[pid  3761] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3766] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3765] setpgid(0, 0 <unfinished ...>
[pid  3761] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3766] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3765] <... setpgid resumed>)      = 0
[pid  3761] fdatasync(-1 <unfinished ...>
[pid  3766] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3765] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3761] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3766] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3766] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3765] <... openat resumed>)       = 3
[pid  3761] exit_group(0 <unfinished ...>
[pid  3765] write(3, "1000", 4 <unfinished ...>
[pid  3761] <... exit_group resumed>)   = ?
[pid  3765] <... write resumed>)        = 4
[pid  3761] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3761, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3765] close(3 <unfinished ...>
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3765] <... close resumed>)        = 0
[pid  3765] mkdir("./file0", 0777 <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3767
[pid  3765] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3765] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3763] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3765] pipe2( <unfinished ...>
[pid  3763] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3765] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3763] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3765] write(-1, NULL, 0 <unfinished ...>
[pid  3763] fdatasync(-1 <unfinished ...>
[pid  3765] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3763] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3765] write(-1, NULL, 0 <unfinished ...>
[pid  3763] exit_group(0 <unfinished ...>
[pid  3765] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3763] <... exit_group resumed>)   = ?
[pid  3765] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3765] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3763] +++ exited with 0 +++
[pid  3765] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3763, si_uid=0, si_status=0, si_utime=1, si_stime=2} ---
[pid  3765] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3762] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3616] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 3767 attached
 <unfinished ...>
[pid  3762] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3616] <... restart_syscall resumed>) = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3767] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3762] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3767] <... prctl resumed>)        = 0
[pid  3762] fdatasync(-1 <unfinished ...>
[pid  3767] setpgid(0, 0 <unfinished ...>
[pid  3762] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3768
[pid  3767] <... setpgid resumed>)      = 0
[pid  3762] exit_group(0 <unfinished ...>
[pid  3767] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3762] <... exit_group resumed>)   = ?
[pid  3767] <... openat resumed>)       = 3
[pid  3767] write(3, "1000", 4 <unfinished ...>
[pid  3762] +++ exited with 0 +++
./strace-static-x86_64: Process 3768 attached
[pid  3767] <... write resumed>)        = 4
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3762, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3768] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3767] close(3 <unfinished ...>
[pid  3622] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3768] <... prctl resumed>)        = 0
[pid  3767] <... close resumed>)        = 0
[pid  3622] <... restart_syscall resumed>) = 0
[pid  3768] setpgid(0, 0 <unfinished ...>
[pid  3767] mkdir("./file0", 0777 <unfinished ...>
[pid  3768] <... setpgid resumed>)      = 0
[pid  3767] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3768] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3767] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3768] <... openat resumed>)       = 3
[pid  3767] pipe2( <unfinished ...>
[pid  3622] <... openat resumed>)       = 3
[pid  3768] write(3, "1000", 4 <unfinished ...>
[pid  3767] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3768] <... write resumed>)        = 4
[pid  3767] write(-1, NULL, 0 <unfinished ...>
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3768] close(3 <unfinished ...>
[pid  3767] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] close(3 <unfinished ...>
[pid  3768] <... close resumed>)        = 0
[pid  3767] write(-1, NULL, 0 <unfinished ...>
[pid  3622] <... close resumed>)        = 0
[pid  3767] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3768] mkdir("./file0", 0777 <unfinished ...>
[pid  3767] write(-1, NULL, 0 <unfinished ...>
[pid  3768] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3767] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3769
[pid  3768] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3767] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80./strace-static-x86_64: Process 3769 attached
 <unfinished ...>
[pid  3768] pipe2( <unfinished ...>
[pid  3767] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3769] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3768] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3767] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3768] write(-1, NULL, 0 <unfinished ...>
[pid  3769] <... prctl resumed>)        = 0
[pid  3768] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3769] setpgid(0, 0 <unfinished ...>
[pid  3768] write(-1, NULL, 0 <unfinished ...>
[pid  3769] <... setpgid resumed>)      = 0
[pid  3768] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3769] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3768] write(-1, NULL, 0 <unfinished ...>
[pid  3769] <... openat resumed>)       = 3
[pid  3768] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3769] write(3, "1000", 4 <unfinished ...>
[pid  3768] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3769] <... write resumed>)        = 4
[pid  3768] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3769] close(3)                    = 0
[pid  3768] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3769] mkdir("./file0", 0777 <unfinished ...>
[pid  3764] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3764] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3764] fdatasync(-1 <unfinished ...>
[pid  3769] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3764] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3764] exit_group(0)               = ?
[pid  3769] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3764] +++ exited with 0 +++
[pid  3769] pipe2( <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3764, si_uid=0, si_status=0, si_utime=1, si_stime=2} ---
[pid  3769] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3769] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3769] write(-1, NULL, 0 <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3769] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3769] write(-1, NULL, 0 <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3769] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] close(3 <unfinished ...>
[pid  3769] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3769] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3770 attached
 <unfinished ...>
[pid  3769] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3770
[pid  3770] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3770] setpgid(0, 0)               = 0
[pid  3770] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3770] write(3, "1000", 4)         = 4
[pid  3770] close(3)                    = 0
[pid  3770] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3770] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3770] pipe2([3, 4], 0)            = 0
[pid  3770] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3770] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3770] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3770] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3770] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3766] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3766] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3766] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3766] exit_group(0)               = ?
[pid  3766] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3766, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3771
[pid  3767] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3767] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3767] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3767] exit_group(0)               = ?
[pid  3767] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3767, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3618] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3./strace-static-x86_64: Process 3771 attached
 <unfinished ...>
[pid  3765] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3618] <... close resumed>)        = 0
[pid  3771] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3765] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3772
[pid  3771] <... prctl resumed>)        = 0
[pid  3765] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3765] fdatasync(-1 <unfinished ...>
[pid  3771] setpgid(0, 0./strace-static-x86_64: Process 3772 attached
)               = 0
[pid  3768] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3765] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3765] exit_group(0 <unfinished ...>
[pid  3771] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3768] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3765] <... exit_group resumed>)   = ?
[pid  3771] <... openat resumed>)       = 3
[pid  3768] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3771] write(3, "1000", 4 <unfinished ...>
[pid  3768] fdatasync(-1 <unfinished ...>
[pid  3765] +++ exited with 0 +++
[pid  3771] <... write resumed>)        = 4
[pid  3768] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3765, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3771] close(3 <unfinished ...>
[pid  3768] exit_group(0 <unfinished ...>
[pid  3771] <... close resumed>)        = 0
[pid  3768] <... exit_group resumed>)   = ?
[pid  3771] mkdir("./file0", 0777 <unfinished ...>
[pid  3768] +++ exited with 0 +++
[pid  3771] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3768, 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  3772] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3771] pipe2( <unfinished ...>
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3772] <... prctl resumed>)        = 0
[pid  3771] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3769] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] <... openat resumed>)       = 3
[pid  3772] setpgid(0, 0 <unfinished ...>
[pid  3771] write(-1, NULL, 0 <unfinished ...>
[pid  3770] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3769] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3772] <... setpgid resumed>)      = 0
[pid  3771] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3770] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3769] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3772] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3771] write(-1, NULL, 0 <unfinished ...>
[pid  3770] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3769] fdatasync(-1 <unfinished ...>
[pid  3620] close(3 <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3772] <... openat resumed>)       = 3
[pid  3771] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3770] fdatasync(-1 <unfinished ...>
[pid  3769] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3620] <... close resumed>)        = 0
[pid  3616] <... openat resumed>)       = 3
[pid  3772] write(3, "1000", 4 <unfinished ...>
[pid  3771] write(-1, NULL, 0 <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3772] <... write resumed>)        = 4
[pid  3771] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3770] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3769] exit_group(0 <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3772] close(3 <unfinished ...>
[pid  3771] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3770] exit_group(0 <unfinished ...>
[pid  3769] <... exit_group resumed>)   = ?
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3773
[pid  3616] close(3 <unfinished ...>
[pid  3772] <... close resumed>)        = 0
[pid  3771] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3770] <... exit_group resumed>)   = ?
[pid  3616] <... close resumed>)        = 0
[pid  3772] mkdir("./file0", 0777 <unfinished ...>
[pid  3771] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3769] +++ exited with 0 +++
[pid  3770] +++ exited with 0 +++
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3772] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3770, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3772] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3769, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3774
[pid  3772] pipe2( <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3617] <... restart_syscall resumed>) = 0
[pid  3772] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3622] <... openat resumed>)       = 3
[pid  3772] write(-1, NULL, 0 <unfinished ...>
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3772] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3772] write(-1, NULL, 0 <unfinished ...>
[pid  3622] close(3 <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3772] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... close resumed>)        = 0
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3772] write(-1, NULL, 0 <unfinished ...>
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3772] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] close(3 <unfinished ...>
[pid  3772] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3775
[pid  3617] <... close resumed>)        = 0
[pid  3772] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3772] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3776
./strace-static-x86_64: Process 3776 attached
./strace-static-x86_64: Process 3775 attached
[pid  3775] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3776] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3775] <... prctl resumed>)        = 0
[pid  3776] <... prctl resumed>)        = 0
[pid  3775] setpgid(0, 0 <unfinished ...>
[pid  3776] setpgid(0, 0 <unfinished ...>
[pid  3775] <... setpgid resumed>)      = 0
[pid  3776] <... setpgid resumed>)      = 0
[pid  3775] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3776] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3775] <... openat resumed>)       = 3
[pid  3776] <... openat resumed>)       = 3
[pid  3775] write(3, "1000", 4 <unfinished ...>
[pid  3776] write(3, "1000", 4 <unfinished ...>
[pid  3775] <... write resumed>)        = 4
[pid  3776] <... write resumed>)        = 4
[pid  3775] close(3 <unfinished ...>
[pid  3776] close(3 <unfinished ...>
[pid  3775] <... close resumed>)        = 0
[pid  3776] <... close resumed>)        = 0
[pid  3775] mkdir("./file0", 0777 <unfinished ...>
[pid  3776] mkdir("./file0", 0777 <unfinished ...>
[pid  3775] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3776] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3775] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3776] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3775] pipe2( <unfinished ...>
[pid  3776] pipe2( <unfinished ...>
[pid  3775] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3776] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3775] write(-1, NULL, 0 <unfinished ...>
[pid  3776] write(-1, NULL, 0 <unfinished ...>
[pid  3775] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3776] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3775] write(-1, NULL, 0 <unfinished ...>
[pid  3776] write(-1, NULL, 0 <unfinished ...>
[pid  3775] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3776] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3776] write(-1, NULL, 0 <unfinished ...>
[pid  3775] write(-1, NULL, 0 <unfinished ...>
[pid  3776] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3775] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3776] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3775] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3776] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3775] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3776] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3775] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3773 attached
./strace-static-x86_64: Process 3774 attached
 <unfinished ...>
[pid  3774] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3773] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3774] setpgid(0, 0 <unfinished ...>
[pid  3773] setpgid(0, 0)               = 0
[pid  3774] <... setpgid resumed>)      = 0
[pid  3773] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3774] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3773] <... openat resumed>)       = 3
[pid  3773] write(3, "1000", 4 <unfinished ...>
[pid  3774] <... openat resumed>)       = 3
[pid  3773] <... write resumed>)        = 4
[pid  3774] write(3, "1000", 4 <unfinished ...>
[pid  3773] close(3)                    = 0
[pid  3774] <... write resumed>)        = 4
[pid  3773] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3774] close(3 <unfinished ...>
[pid  3773] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3774] <... close resumed>)        = 0
[pid  3773] pipe2([3, 4], 0)            = 0
[pid  3774] mkdir("./file0", 0777 <unfinished ...>
[pid  3773] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3773] write(-1, NULL, 0 <unfinished ...>
[pid  3774] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3773] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3773] write(-1, NULL, 0 <unfinished ...>
[pid  3774] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3773] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3773] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3774] pipe2( <unfinished ...>
[pid  3773] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3773] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3774] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3771] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3774] write(-1, NULL, 0 <unfinished ...>
[pid  3771] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3774] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3771] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3774] write(-1, NULL, 0 <unfinished ...>
[pid  3771] fdatasync(-1 <unfinished ...>
[pid  3774] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3771] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3774] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3771] exit_group(0 <unfinished ...>
[pid  3774] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3771] <... exit_group resumed>)   = ?
[pid  3774] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3771] +++ exited with 0 +++
[pid  3774] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3771, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3619] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3777
./strace-static-x86_64: Process 3777 attached
[pid  3777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3777] setpgid(0, 0)               = 0
[pid  3777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3772] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3777] write(3, "1000", 4)         = 4
[pid  3777] close(3)                    = 0
[pid  3777] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3777] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3777] pipe2([3, 4], 0)            = 0
[pid  3777] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3777] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3777] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3777] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3777] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3772] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3772] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3772] exit_group(0)               = ?
[pid  3772] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3772, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3775] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3778
[pid  3775] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3775] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3775] exit_group(0)               = ?
[pid  3775] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3775, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3622] restart_syscall(<... resuming interrupted clone ...>./strace-static-x86_64: Process 3778 attached
) = 0
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3778] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3778] <... prctl resumed>)        = 0
[pid  3778] setpgid(0, 0 <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3779
[pid  3778] <... setpgid resumed>)      = 0
[pid  3778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3778] write(3, "1000", 4)         = 4
[pid  3778] close(3)                    = 0
[pid  3778] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3778] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3778] pipe2(./strace-static-x86_64: Process 3779 attached
[3, 4], 0)            = 0
[pid  3779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3779] setpgid(0, 0)               = 0
[pid  3779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3778] write(-1, NULL, 0 <unfinished ...>
[pid  3776] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3779] <... openat resumed>)       = 3
[pid  3779] write(3, "1000", 4)         = 4
[pid  3779] close(3)                    = 0
[pid  3776] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3776] fdatasync(-1 <unfinished ...>
[pid  3779] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3779] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3779] pipe2([3, 4], 0)            = 0
[pid  3779] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3779] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3779] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3776] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3778] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3776] exit_group(0 <unfinished ...>
[pid  3778] write(-1, NULL, 0 <unfinished ...>
[pid  3776] <... exit_group resumed>)   = ?
[pid  3779] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3779] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3776] +++ exited with 0 +++
[pid  3778] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3778] write(-1, NULL, 0 <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3776, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3778] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3778] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3617] <... restart_syscall resumed>) = 0
[pid  3778] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3778] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3780
./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) = 3
[pid  3780] write(3, "1000", 4)         = 4
[pid  3780] close(3)                    = 0
[pid  3780] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3780] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3780] pipe2([3, 4], 0)            = 0
[pid  3780] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3780] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3780] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3780] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3780] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3773] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3773] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3773] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3773] exit_group(0)               = ?
[pid  3773] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3773, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3774] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3774] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3781
[pid  3774] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3774] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3774] exit_group(0)               = ?
./strace-static-x86_64: Process 3781 attached
[pid  3781] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3781] setpgid(0, 0)               = 0
[pid  3781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3774] +++ exited with 0 +++
[pid  3781] <... openat resumed>)       = 3
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3774, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3781] write(3, "1000", 4 <unfinished ...>
[pid  3616] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3781] <... write resumed>)        = 4
[pid  3616] <... restart_syscall resumed>) = 0
[pid  3781] close(3)                    = 0
[pid  3781] mkdir("./file0", 0777 <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3781] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3616] <... openat resumed>)       = 3
[pid  3781] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3781] pipe2( <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3781] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3616] close(3 <unfinished ...>
[pid  3781] write(-1, NULL, 0 <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3782
./strace-static-x86_64: Process 3782 attached
[pid  3782] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3782] setpgid(0, 0)               = 0
[pid  3782] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3782] write(3, "1000", 4)         = 4
[pid  3782] close(3)                    = 0
[pid  3781] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3782] mkdir("./file0", 0777 <unfinished ...>
[pid  3781] write(-1, NULL, 0 <unfinished ...>
[pid  3782] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3781] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3782] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3781] write(-1, NULL, 0 <unfinished ...>
[pid  3782] pipe2([3, 4], 0)            = 0
[pid  3781] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3781] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3782] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3781] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3782] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3782] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3782] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3782] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3779] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3779] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3779] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3779] exit_group(0)               = ?
[pid  3779] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3779, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3622] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3777] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3777] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3783
[pid  3777] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3777] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3777] exit_group(0)               = ?
[pid  3777] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3777, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
./strace-static-x86_64: Process 3783 attached
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3784
./strace-static-x86_64: Process 3784 attached
[pid  3784] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3784] setpgid(0, 0)               = 0
[pid  3784] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3784] write(3, "1000", 4 <unfinished ...>
[pid  3783] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3784] <... write resumed>)        = 4
[pid  3783] <... prctl resumed>)        = 0
[pid  3784] close(3 <unfinished ...>
[pid  3783] setpgid(0, 0 <unfinished ...>
[pid  3784] <... close resumed>)        = 0
[pid  3783] <... setpgid resumed>)      = 0
[pid  3784] mkdir("./file0", 0777 <unfinished ...>
[pid  3783] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3784] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3783] <... openat resumed>)       = 3
[pid  3784] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3783] write(3, "1000", 4 <unfinished ...>
[pid  3784] pipe2( <unfinished ...>
[pid  3783] <... write resumed>)        = 4
[pid  3784] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3783] close(3 <unfinished ...>
[pid  3784] write(-1, NULL, 0 <unfinished ...>
[pid  3783] <... close resumed>)        = 0
[pid  3784] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3784] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3784] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3784] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3784] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3783] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3783] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3783] pipe2([3, 4], 0)            = 0
[pid  3783] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3778] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3783] write(-1, NULL, 0 <unfinished ...>
[pid  3778] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3783] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3778] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3783] write(-1, NULL, 0 <unfinished ...>
[pid  3778] fdatasync(-1 <unfinished ...>
[pid  3783] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3783] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3783] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3778] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3778] exit_group(0)               = ?
[pid  3778] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3778, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3780] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3785 attached
 <unfinished ...>
[pid  3780] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3785
[pid  3785] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3781] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3780] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3785] <... prctl resumed>)        = 0
[pid  3781] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3780] fdatasync(-1 <unfinished ...>
[pid  3785] setpgid(0, 0 <unfinished ...>
[pid  3781] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3780] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3782] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3785] <... setpgid resumed>)      = 0
[pid  3782] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3781] fdatasync(-1 <unfinished ...>
[pid  3780] exit_group(0 <unfinished ...>
[pid  3785] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3782] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3781] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3780] <... exit_group resumed>)   = ?
[pid  3785] <... openat resumed>)       = 3
[pid  3782] fdatasync(-1 <unfinished ...>
[pid  3781] exit_group(0 <unfinished ...>
[pid  3780] +++ exited with 0 +++
[pid  3785] write(3, "1000", 4 <unfinished ...>
[pid  3782] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3781] <... exit_group resumed>)   = ?
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3780, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3785] <... write resumed>)        = 4
[pid  3782] exit_group(0 <unfinished ...>
[pid  3781] +++ exited with 0 +++
[pid  3617] <... restart_syscall resumed>) = 0
[pid  3785] close(3 <unfinished ...>
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3781, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3785] <... close resumed>)        = 0
[pid  3782] <... exit_group resumed>)   = ?
[pid  3785] mkdir("./file0", 0777 <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3785] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3782] +++ exited with 0 +++
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3785] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3620] <... openat resumed>)       = 3
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3782, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] close(3 <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3785] pipe2( <unfinished ...>
[pid  3784] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] close(3 <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3616] <... openat resumed>)       = 3
[pid  3785] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3784] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3783] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] <... close resumed>)        = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3785] write(-1, NULL, 0 <unfinished ...>
[pid  3784] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3783] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
./strace-static-x86_64: Process 3787 attached
./strace-static-x86_64: Process 3786 attached
[pid  3785] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3784] fdatasync(-1 <unfinished ...>
[pid  3783] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3786
[pid  3616] close(3 <unfinished ...>
[pid  3786] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3785] write(-1, NULL, 0 <unfinished ...>
[pid  3784] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3783] fdatasync(-1 <unfinished ...>
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3787
[pid  3616] <... close resumed>)        = 0
[pid  3786] <... prctl resumed>)        = 0
[pid  3785] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3784] exit_group(0 <unfinished ...>
[pid  3783] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3788 attached
 <unfinished ...>
[pid  3787] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3786] setpgid(0, 0 <unfinished ...>
[pid  3785] write(-1, NULL, 0 <unfinished ...>
[pid  3784] <... exit_group resumed>)   = ?
[pid  3783] exit_group(0 <unfinished ...>
[pid  3787] <... prctl resumed>)        = 0
[pid  3786] <... setpgid resumed>)      = 0
[pid  3785] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3784] +++ exited with 0 +++
[pid  3783] <... exit_group resumed>)   = ?
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3788
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3784, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3785] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3786] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3619] <... openat resumed>)       = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3783] +++ exited with 0 +++
[pid  3619] close(3 <unfinished ...>
[pid  3785] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3783, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] <... close resumed>)        = 0
[pid  3786] <... openat resumed>)       = 3
[pid  3622] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3786] write(3, "1000", 4 <unfinished ...>
[pid  3785] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3622] <... restart_syscall resumed>) = 0
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3789
[pid  3786] <... write resumed>)        = 4
[pid  3787] setpgid(0, 0 <unfinished ...>
[pid  3786] close(3 <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3787] <... setpgid resumed>)      = 0
[pid  3786] <... close resumed>)        = 0
[pid  3622] <... openat resumed>)       = 3
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3786] mkdir("./file0", 0777 <unfinished ...>
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3786] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3786] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3790
[pid  3786] pipe2( <unfinished ...>
[pid  3787] <... openat resumed>)       = 3
[pid  3786] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3786] write(-1, NULL, 0./strace-static-x86_64: Process 3789 attached
 <unfinished ...>
[pid  3787] write(3, "1000", 4 <unfinished ...>
[pid  3786] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3789] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3787] <... write resumed>)        = 4
[pid  3786] write(-1, NULL, 0 <unfinished ...>
[pid  3789] <... prctl resumed>)        = 0
[pid  3787] close(3 <unfinished ...>
[pid  3786] <... write resumed>)        = -1 EBADF (Bad file descriptor)
./strace-static-x86_64: Process 3790 attached
[pid  3789] setpgid(0, 0 <unfinished ...>
[pid  3787] <... close resumed>)        = 0
[pid  3786] write(-1, NULL, 0 <unfinished ...>
[pid  3790] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3789] <... setpgid resumed>)      = 0
[pid  3790] <... prctl resumed>)        = 0
[pid  3789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3790] setpgid(0, 0 <unfinished ...>
[pid  3789] <... openat resumed>)       = 3
[pid  3790] <... setpgid resumed>)      = 0
[pid  3789] write(3, "1000", 4 <unfinished ...>
[pid  3790] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3789] <... write resumed>)        = 4
[pid  3790] <... openat resumed>)       = 3
[pid  3789] close(3 <unfinished ...>
[pid  3790] write(3, "1000", 4 <unfinished ...>
[pid  3789] <... close resumed>)        = 0
[pid  3790] <... write resumed>)        = 4
[pid  3789] mkdir("./file0", 0777 <unfinished ...>
[pid  3790] close(3 <unfinished ...>
[pid  3789] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3790] <... close resumed>)        = 0
[pid  3789] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3790] mkdir("./file0", 0777 <unfinished ...>
[pid  3789] pipe2( <unfinished ...>
[pid  3790] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3789] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3790] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3789] write(-1, NULL, 0 <unfinished ...>
[pid  3790] pipe2( <unfinished ...>
[pid  3789] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3790] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3789] write(-1, NULL, 0 <unfinished ...>
[pid  3790] write(-1, NULL, 0 <unfinished ...>
[pid  3789] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3790] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3789] write(-1, NULL, 0 <unfinished ...>
[pid  3790] write(-1, NULL, 0 <unfinished ...>
[pid  3789] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3790] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3789] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3790] write(-1, NULL, 0 <unfinished ...>
[pid  3789] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3790] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3789] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3786] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3790] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3787] mkdir("./file0", 0777 <unfinished ...>
[pid  3786] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3790] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3786] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3787] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3790] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3788] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3786] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3787] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3787] pipe2( <unfinished ...>
[pid  3788] <... prctl resumed>)        = 0
[pid  3787] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3788] setpgid(0, 0 <unfinished ...>
[pid  3787] write(-1, NULL, 0 <unfinished ...>
[pid  3788] <... setpgid resumed>)      = 0
[pid  3787] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3788] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3787] write(-1, NULL, 0 <unfinished ...>
[pid  3788] <... openat resumed>)       = 3
[pid  3787] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3788] write(3, "1000", 4 <unfinished ...>
[pid  3787] write(-1, NULL, 0 <unfinished ...>
[pid  3788] <... write resumed>)        = 4
[pid  3787] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3788] close(3 <unfinished ...>
[pid  3787] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3788] <... close resumed>)        = 0
[pid  3787] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3788] mkdir("./file0", 0777 <unfinished ...>
[pid  3787] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3788] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3788] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3788] pipe2([3, 4], 0)            = 0
[pid  3788] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3788] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3788] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3788] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3788] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3785] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3785] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3785] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3785] exit_group(0)               = ?
[pid  3785] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3785, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3789] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3789] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3789] <... openat resumed>)       = -1 EFAULT (Bad address)
./strace-static-x86_64: Process 3791 attached
[pid  3790] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3787] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3789] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3791
[pid  3789] exit_group(0 <unfinished ...>
[pid  3790] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3789] <... exit_group resumed>)   = ?
[pid  3791] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3789] +++ exited with 0 +++
[pid  3790] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3789, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3790] fdatasync(-1 <unfinished ...>
[pid  3619] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3791] <... prctl resumed>)        = 0
[pid  3790] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3619] <... restart_syscall resumed>) = 0
[pid  3790] exit_group(0)               = ?
[pid  3787] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3791] setpgid(0, 0)               = 0
[pid  3791] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3792
[pid  3787] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3790] +++ exited with 0 +++
[pid  3787] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3790, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3791] <... openat resumed>)       = 3
[pid  3787] exit_group(0 <unfinished ...>
[pid  3622] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3787] <... exit_group resumed>)   = ?
[pid  3622] <... restart_syscall resumed>) = 0
[pid  3791] write(3, "1000", 4)         = 4
[pid  3791] close(3 <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3791] <... close resumed>)        = 0
[pid  3787] +++ exited with 0 +++
[pid  3622] <... openat resumed>)       = 3
[pid  3791] mkdir("./file0", 0777 <unfinished ...>
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3791] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3787, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3620] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3622] close(3 <unfinished ...>
[pid  3620] <... restart_syscall resumed>) = 0
[pid  3622] <... close resumed>)        = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3791] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3791] pipe2([3, 4], 0)            = 0
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3793
[pid  3791] write(-1, NULL, 0 <unfinished ...>
[pid  3620] <... openat resumed>)       = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3 <unfinished ...>
[pid  3791] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3786] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] <... close resumed>)        = 0
[pid  3791] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3786] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3791] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3786] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3791] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3786] fdatasync(-1 <unfinished ...>
[pid  3791] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3786] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3786] exit_group(0./strace-static-x86_64: Process 3792 attached
)               = ?
[pid  3792] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3786] +++ exited with 0 +++
[pid  3792] <... prctl resumed>)        = 0
[pid  3792] setpgid(0, 0)               = 0
[pid  3792] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3792] write(3, "1000", 4)         = 4
[pid  3792] close(3)                    = 0
[pid  3792] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3792] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3792] pipe2([3, 4], 0)            = 0
[pid  3792] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3792] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3792] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3792] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3792] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3786, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
./strace-static-x86_64: Process 3794 attached
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3794
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3794] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3794] <... prctl resumed>)        = 0
[pid  3794] setpgid(0, 0 <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3795
[pid  3794] <... setpgid resumed>)      = 0
[pid  3794] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3794] write(3, "1000", 4)         = 4
[pid  3794] close(3)                    = 0
[pid  3794] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3794] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
./strace-static-x86_64: Process 3795 attached
[pid  3794] pipe2( <unfinished ...>
[pid  3795] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3794] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3795] <... prctl resumed>)        = 0
[pid  3794] write(-1, NULL, 0./strace-static-x86_64: Process 3793 attached
 <unfinished ...>
[pid  3795] setpgid(0, 0 <unfinished ...>
[pid  3794] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3795] <... setpgid resumed>)      = 0
[pid  3794] write(-1, NULL, 0 <unfinished ...>
[pid  3795] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3794] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3795] <... openat resumed>)       = 3
[pid  3794] write(-1, NULL, 0 <unfinished ...>
[pid  3793] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3795] write(3, "1000", 4 <unfinished ...>
[pid  3794] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3795] <... write resumed>)        = 4
[pid  3794] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3793] <... prctl resumed>)        = 0
[pid  3795] close(3 <unfinished ...>
[pid  3794] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3795] <... close resumed>)        = 0
[pid  3794] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3793] setpgid(0, 0 <unfinished ...>
[pid  3795] mkdir("./file0", 0777 <unfinished ...>
[pid  3793] <... setpgid resumed>)      = 0
[pid  3795] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3795] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3793] <... openat resumed>)       = 3
[pid  3795] pipe2( <unfinished ...>
[pid  3793] write(3, "1000", 4)         = 4
[pid  3793] close(3)                    = 0
[pid  3795] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3793] mkdir("./file0", 0777 <unfinished ...>
[pid  3795] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3793] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3795] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3795] write(-1, NULL, 0 <unfinished ...>
[pid  3793] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3795] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3795] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3793] pipe2( <unfinished ...>
[pid  3795] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3795] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3793] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3793] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3793] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3793] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3793] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3793] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3788] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3788] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3793] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3788] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3793] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3788] fdatasync(-1 <unfinished ...>
[pid  3793] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3788] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3793] fdatasync(-1 <unfinished ...>
[pid  3788] exit_group(0 <unfinished ...>
[pid  3793] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3788] <... exit_group resumed>)   = ?
[pid  3793] exit_group(0 <unfinished ...>
[pid  3788] +++ exited with 0 +++
[pid  3793] <... exit_group resumed>)   = ?
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3788, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3793] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3793, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3796
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3797
./strace-static-x86_64: Process 3796 attached
./strace-static-x86_64: Process 3797 attached
[pid  3797] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3797] setpgid(0, 0)               = 0
[pid  3797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3797] write(3, "1000", 4)         = 4
[pid  3797] close(3)                    = 0
[pid  3797] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3797] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3797] pipe2([3, 4], 0)            = 0
[pid  3797] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3797] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3797] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3791] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3797] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3791] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3797] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3797] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3796] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3791] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3796] <... prctl resumed>)        = 0
[pid  3791] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3791] exit_group(0)               = ?
[pid  3791] +++ exited with 0 +++
[pid  3796] setpgid(0, 0 <unfinished ...>
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3791, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3796] <... setpgid resumed>)      = 0
[pid  3618] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3796] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3796] write(3, "1000", 4 <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3796] <... write resumed>)        = 4
[pid  3792] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3618] close(3 <unfinished ...>
[pid  3796] close(3 <unfinished ...>
[pid  3794] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3792] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3618] <... close resumed>)        = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3798 attached
 <unfinished ...>
[pid  3796] <... close resumed>)        = 0
[pid  3795] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3794] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3792] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3798
[pid  3796] mkdir("./file0", 0777 <unfinished ...>
[pid  3792] fdatasync(-1 <unfinished ...>
[pid  3795] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3794] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3792] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3796] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3798] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3796] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3798] <... prctl resumed>)        = 0
[pid  3796] pipe2( <unfinished ...>
[pid  3795] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3794] fdatasync(-1 <unfinished ...>
[pid  3792] exit_group(0 <unfinished ...>
[pid  3796] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3794] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3792] <... exit_group resumed>)   = ?
[pid  3798] setpgid(0, 0 <unfinished ...>
[pid  3796] write(-1, NULL, 0 <unfinished ...>
[pid  3795] fdatasync(-1 <unfinished ...>
[pid  3796] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3794] exit_group(0 <unfinished ...>
[pid  3796] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3794] <... exit_group resumed>)   = ?
[pid  3796] write(-1, NULL, 0 <unfinished ...>
[pid  3792] +++ exited with 0 +++
[pid  3796] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3792, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3619] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3796] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3619] <... restart_syscall resumed>) = 0
[pid  3796] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3796] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3794] +++ exited with 0 +++
[pid  3798] <... setpgid resumed>)      = 0
[pid  3795] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3794, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3799
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3 <unfinished ...>
[pid  3795] exit_group(0./strace-static-x86_64: Process 3799 attached
 <unfinished ...>
[pid  3798] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3795] <... exit_group resumed>)   = ?
[pid  3620] <... close resumed>)        = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3798] <... openat resumed>)       = 3
[pid  3795] +++ exited with 0 +++
[pid  3799] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3800
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3795, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3798] write(3, "1000", 4 <unfinished ...>
[pid  3799] <... prctl resumed>)        = 0
[pid  3798] <... write resumed>)        = 4
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3799] setpgid(0, 0 <unfinished ...>
[pid  3798] close(3 <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3799] <... setpgid resumed>)      = 0
[pid  3798] <... close resumed>)        = 0
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3798] mkdir("./file0", 0777 <unfinished ...>
[pid  3617] close(3 <unfinished ...>
[pid  3798] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3617] <... close resumed>)        = 0
[pid  3798] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3799] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3798] pipe2([3, 4], 0)            = 0
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3801
[pid  3798] write(-1, NULL, 0 <unfinished ...>
[pid  3799] <... openat resumed>)       = 3
[pid  3798] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3799] write(3, "1000", 4 <unfinished ...>
[pid  3798] write(-1, NULL, 0./strace-static-x86_64: Process 3801 attached
 <unfinished ...>
[pid  3799] <... write resumed>)        = 4
[pid  3798] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3801] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3799] close(3 <unfinished ...>
[pid  3798] write(-1, NULL, 0 <unfinished ...>
[pid  3801] <... prctl resumed>)        = 0
[pid  3798] <... write resumed>)        = -1 EBADF (Bad file descriptor)
./strace-static-x86_64: Process 3800 attached
[pid  3799] <... close resumed>)        = 0
[pid  3801] setpgid(0, 0)               = 0
[pid  3798] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3799] mkdir("./file0", 0777 <unfinished ...>
[pid  3798] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3801] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3800] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3799] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3798] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3801] <... openat resumed>)       = 3
[pid  3799] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3800] <... prctl resumed>)        = 0
[pid  3801] write(3, "1000", 4)         = 4
[pid  3801] close(3)                    = 0
[pid  3800] setpgid(0, 0 <unfinished ...>
[pid  3799] pipe2([3, 4], 0)            = 0
[pid  3800] <... setpgid resumed>)      = 0
[pid  3801] mkdir("./file0", 0777 <unfinished ...>
[pid  3800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3799] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3801] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3800] <... openat resumed>)       = 3
[pid  3799] write(-1, NULL, 0 <unfinished ...>
[pid  3801] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3801] pipe2( <unfinished ...>
[pid  3800] write(3, "1000", 4 <unfinished ...>
[pid  3799] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3801] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3800] <... write resumed>)        = 4
[pid  3799] write(-1, NULL, 0 <unfinished ...>
[pid  3800] close(3 <unfinished ...>
[pid  3799] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3799] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3800] <... close resumed>)        = 0
[pid  3799] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3801] write(-1, NULL, 0 <unfinished ...>
[pid  3799] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3801] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3800] mkdir("./file0", 0777 <unfinished ...>
[pid  3801] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3800] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3801] write(-1, NULL, 0 <unfinished ...>
[pid  3800] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3801] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3801] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3800] pipe2( <unfinished ...>
[pid  3801] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3801] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3800] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3800] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3800] write(-1, NULL, 0 <unfinished ...>
[pid  3797] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3800] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3797] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3800] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3800] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3800] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3797] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3797] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3797] exit_group(0)               = ?
[pid  3796] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3796] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3796] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3797] +++ exited with 0 +++
[pid  3796] exit_group(0)               = ?
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3797, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3796] +++ exited with 0 +++
[pid  3622] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3796, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3622] <... openat resumed>)       = 3
[pid  3616] <... openat resumed>)       = 3
[pid  3798] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3798] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3622] close(3 <unfinished ...>
[pid  3616] close(3 <unfinished ...>
[pid  3622] <... close resumed>)        = 0
[pid  3616] <... close resumed>)        = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3798] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3802
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3803
[pid  3798] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3798] exit_group(0)               = ?
[pid  3798] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3798, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3804 attached
./strace-static-x86_64: Process 3802 attached
 <unfinished ...>
[pid  3799] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3804
[pid  3799] openat(AT_FDCWD, NULL, O_RDONLY./strace-static-x86_64: Process 3803 attached
 <unfinished ...>
[pid  3804] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3803] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3802] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3799] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3803] <... prctl resumed>)        = 0
[pid  3803] setpgid(0, 0)               = 0
[pid  3804] setpgid(0, 0 <unfinished ...>
[pid  3803] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3802] <... prctl resumed>)        = 0
[pid  3799] fdatasync(-1 <unfinished ...>
[pid  3804] <... setpgid resumed>)      = 0
[pid  3803] <... openat resumed>)       = 3
[pid  3802] setpgid(0, 0 <unfinished ...>
[pid  3799] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3803] write(3, "1000", 4 <unfinished ...>
[pid  3804] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3803] <... write resumed>)        = 4
[pid  3799] exit_group(0 <unfinished ...>
[pid  3803] close(3 <unfinished ...>
[pid  3799] <... exit_group resumed>)   = ?
[pid  3804] <... openat resumed>)       = 3
[pid  3803] <... close resumed>)        = 0
[pid  3802] <... setpgid resumed>)      = 0
[pid  3803] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3803] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3803] pipe2([3, 4], 0)            = 0
[pid  3803] write(-1, NULL, 0 <unfinished ...>
[pid  3799] +++ exited with 0 +++
[pid  3803] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3803] write(-1, NULL, 0 <unfinished ...>
[pid  3804] write(3, "1000", 4 <unfinished ...>
[pid  3803] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3799, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3802] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3804] <... write resumed>)        = 4
[pid  3803] write(-1, NULL, 0 <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3804] close(3 <unfinished ...>
[pid  3803] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3802] <... openat resumed>)       = 3
[pid  3619] <... openat resumed>)       = 3
[pid  3804] <... close resumed>)        = 0
[pid  3803] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3802] write(3, "1000", 4 <unfinished ...>
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3804] mkdir("./file0", 0777 <unfinished ...>
[pid  3803] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3802] <... write resumed>)        = 4
[pid  3804] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3803] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3804] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3802] close(3 <unfinished ...>
[pid  3800] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3619] close(3 <unfinished ...>
[pid  3804] pipe2( <unfinished ...>
[pid  3802] <... close resumed>)        = 0
[pid  3800] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3619] <... close resumed>)        = 0
[pid  3804] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3802] mkdir("./file0", 0777 <unfinished ...>
[pid  3800] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3804] write(-1, NULL, 0 <unfinished ...>
[pid  3802] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3801] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3800] fdatasync(-1 <unfinished ...>
[pid  3804] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3802] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3800] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3805
[pid  3804] write(-1, NULL, 0 <unfinished ...>
[pid  3802] pipe2( <unfinished ...>
[pid  3800] exit_group(0 <unfinished ...>
[pid  3804] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3802] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3800] <... exit_group resumed>)   = ?
./strace-static-x86_64: Process 3805 attached
[pid  3804] write(-1, NULL, 0 <unfinished ...>
[pid  3802] write(-1, NULL, 0 <unfinished ...>
[pid  3801] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3800] +++ exited with 0 +++
[pid  3804] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3802] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3800, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3804] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3802] write(-1, NULL, 0 <unfinished ...>
[pid  3804] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3802] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3804] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3802] write(-1, NULL, 0 <unfinished ...>
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3802] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3801] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3620] <... openat resumed>)       = 3
[pid  3802] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3805] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3802] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3801] fdatasync(-1 <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3802] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3620] close(3 <unfinished ...>
[pid  3805] <... prctl resumed>)        = 0
[pid  3801] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3620] <... close resumed>)        = 0
[pid  3805] setpgid(0, 0 <unfinished ...>
[pid  3801] exit_group(0 <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3805] <... setpgid resumed>)      = 0
[pid  3801] <... exit_group resumed>)   = ?
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3806
./strace-static-x86_64: Process 3806 attached
[pid  3801] +++ exited with 0 +++
[pid  3805] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3801, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3805] <... openat resumed>)       = 3
[pid  3805] write(3, "1000", 4)         = 4
[pid  3805] close(3 <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3805] <... close resumed>)        = 0
[pid  3617] <... openat resumed>)       = 3
[pid  3805] mkdir("./file0", 0777 <unfinished ...>
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3805] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3805] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3805] pipe2( <unfinished ...>
[pid  3617] close(3 <unfinished ...>
[pid  3805] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3617] <... close resumed>)        = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3805] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3805] write(-1, NULL, 0 <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3807
[pid  3805] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3805] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3805] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3806] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3805] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3806] <... prctl resumed>)        = 0
[pid  3805] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3806] setpgid(0, 0)               = 0
[pid  3806] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3806] write(3, "1000", 4)         = 4
[pid  3806] close(3)                    = 0
[pid  3806] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3806] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3806] pipe2([3, 4], 0)            = 0
[pid  3806] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3806] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3806] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3806] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3806] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3807 attached
 <unfinished ...>
[pid  3807] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3807] setpgid(0, 0)               = 0
[pid  3807] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3807] write(3, "1000", 4)         = 4
[pid  3807] close(3)                    = 0
[pid  3807] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3807] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3807] pipe2([3, 4], 0)            = 0
[pid  3807] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3807] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3807] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3807] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3807] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3803] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3803] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3803] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3803] exit_group(0)               = ?
[pid  3803] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3803, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3810
[pid  3806] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3806] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3806] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3806] exit_group(0)               = ?
[pid  3806] +++ exited with 0 +++
./strace-static-x86_64: Process 3810 attached
[pid  3810] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3810] setpgid(0, 0)               = 0
[pid  3810] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3810] write(3, "1000", 4)         = 4
[pid  3810] close(3)                    = 0
[pid  3810] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3810] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3810] pipe2([3, 4], 0)            = 0
[pid  3810] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3810] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3810] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3810] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3806, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3810] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3810] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3802] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3802] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3802] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3802] exit_group(0)               = ?
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3811
[pid  3802] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3802, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3622] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3812
./strace-static-x86_64: Process 3811 attached
[pid  3811] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3811] setpgid(0, 0)               = 0
[pid  3811] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3811] write(3, "1000", 4)         = 4
[pid  3811] close(3)                    = 0
[pid  3811] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3811] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3811] pipe2([3, 4], 0)            = 0
[pid  3811] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3811] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3811] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3811] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3811] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3805] <... mount resumed>)        = -1 EFAULT (Bad address)
./strace-static-x86_64: Process 3812 attached
[pid  3807] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3805] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3804] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3812] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3807] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3805] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3804] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3812] <... prctl resumed>)        = 0
[pid  3807] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3805] fdatasync(-1 <unfinished ...>
[pid  3804] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3812] setpgid(0, 0 <unfinished ...>
[pid  3807] fdatasync(-1 <unfinished ...>
[pid  3805] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3804] fdatasync(-1 <unfinished ...>
[pid  3812] <... setpgid resumed>)      = 0
[pid  3807] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3805] exit_group(0 <unfinished ...>
[pid  3804] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3807] exit_group(0 <unfinished ...>
[pid  3805] <... exit_group resumed>)   = ?
[pid  3804] exit_group(0 <unfinished ...>
[pid  3812] <... openat resumed>)       = 3
[pid  3807] <... exit_group resumed>)   = ?
[pid  3805] +++ exited with 0 +++
[pid  3804] <... exit_group resumed>)   = ?
[pid  3812] write(3, "1000", 4 <unfinished ...>
[pid  3807] +++ exited with 0 +++
[pid  3804] +++ exited with 0 +++
[pid  3812] <... write resumed>)        = 4
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3805, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3807, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3812] close(3 <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3804, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] <... openat resumed>)       = 3
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3812] <... close resumed>)        = 0
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3812] mkdir("./file0", 0777 <unfinished ...>
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3618] <... openat resumed>)       = 3
[pid  3617] <... openat resumed>)       = 3
[pid  3812] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3619] close(3 <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3812] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3619] <... close resumed>)        = 0
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3812] pipe2( <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] close(3 <unfinished ...>
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3812] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3618] <... close resumed>)        = 0
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3813
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3814
[pid  3812] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3812] write(-1, NULL, 0 <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3815
[pid  3812] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3812] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3812] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3812] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3815 attached
./strace-static-x86_64: Process 3813 attached
./strace-static-x86_64: Process 3814 attached
 <unfinished ...>
[pid  3815] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3813] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3815] <... prctl resumed>)        = 0
[pid  3813] <... prctl resumed>)        = 0
[pid  3814] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3815] setpgid(0, 0 <unfinished ...>
[pid  3814] <... prctl resumed>)        = 0
[pid  3813] setpgid(0, 0 <unfinished ...>
[pid  3815] <... setpgid resumed>)      = 0
[pid  3814] setpgid(0, 0 <unfinished ...>
[pid  3813] <... setpgid resumed>)      = 0
[pid  3815] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3814] <... setpgid resumed>)      = 0
[pid  3813] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3810] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3810] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3815] <... openat resumed>)       = 3
[pid  3814] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3813] <... openat resumed>)       = 3
[pid  3810] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3815] write(3, "1000", 4 <unfinished ...>
[pid  3813] write(3, "1000", 4 <unfinished ...>
[pid  3810] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3815] <... write resumed>)        = 4
[pid  3814] <... openat resumed>)       = 3
[pid  3813] <... write resumed>)        = 4
[pid  3810] exit_group(0 <unfinished ...>
[pid  3815] close(3 <unfinished ...>
[pid  3813] close(3 <unfinished ...>
[pid  3810] <... exit_group resumed>)   = ?
[pid  3815] <... close resumed>)        = 0
[pid  3814] write(3, "1000", 4 <unfinished ...>
[pid  3813] <... close resumed>)        = 0
[pid  3810] +++ exited with 0 +++
[pid  3815] mkdir("./file0", 0777 <unfinished ...>
[pid  3814] <... write resumed>)        = 4
[pid  3813] mkdir("./file0", 0777 <unfinished ...>
[pid  3811] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3810, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3811] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3811] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3616] <... openat resumed>)       = 3
[pid  3811] fdatasync(-1 <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3811] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3811] exit_group(0 <unfinished ...>
[pid  3616] close(3 <unfinished ...>
[pid  3811] <... exit_group resumed>)   = ?
[pid  3616] <... close resumed>)        = 0
[pid  3811] +++ exited with 0 +++
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3815] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3813] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3811, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3816
[pid  3815] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3813] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3814] close(3 <unfinished ...>
[pid  3620] <... openat resumed>)       = 3
[pid  3815] pipe2( <unfinished ...>
[pid  3813] pipe2( <unfinished ...>
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3814] <... close resumed>)        = 0
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3815] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3620] close(3./strace-static-x86_64: Process 3816 attached
)                    = 0
[pid  3815] write(-1, NULL, 0 <unfinished ...>
[pid  3813] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3815] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3814] mkdir("./file0", 0777 <unfinished ...>
[pid  3815] write(-1, NULL, 0 <unfinished ...>
[pid  3814] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3813] write(-1, NULL, 0 <unfinished ...>
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3817
[pid  3816] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3816] setpgid(0, 0)               = 0
[pid  3816] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3815] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3813] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3814] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3815] write(-1, NULL, 0 <unfinished ...>
[pid  3813] write(-1, NULL, 0 <unfinished ...>
[pid  3814] pipe2( <unfinished ...>
[pid  3815] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3813] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3816] <... openat resumed>)       = 3
[pid  3815] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3814] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3813] write(-1, NULL, 0./strace-static-x86_64: Process 3817 attached
 <unfinished ...>
[pid  3816] write(3, "1000", 4 <unfinished ...>
[pid  3815] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3813] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3814] write(-1, NULL, 0 <unfinished ...>
[pid  3816] <... write resumed>)        = 4
[pid  3815] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3813] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3816] close(3 <unfinished ...>
[pid  3813] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3816] <... close resumed>)        = 0
[pid  3813] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3816] mkdir("./file0", 0777 <unfinished ...>
[pid  3814] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3816] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3816] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3816] pipe2([3, 4], 0)            = 0
[pid  3814] write(-1, NULL, 0 <unfinished ...>
[pid  3816] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3814] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3816] write(-1, NULL, 0 <unfinished ...>
[pid  3814] write(-1, NULL, 0 <unfinished ...>
[pid  3817] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3816] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3814] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3817] setpgid(0, 0 <unfinished ...>
[pid  3816] write(-1, NULL, 0 <unfinished ...>
[pid  3814] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3817] <... setpgid resumed>)      = 0
[pid  3816] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3814] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3816] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3817] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3816] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3814] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3817] <... openat resumed>)       = 3
[pid  3817] write(3, "1000", 4)         = 4
[pid  3817] close(3)                    = 0
[pid  3817] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3817] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3817] pipe2([3, 4], 0)            = 0
[pid  3817] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3817] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3817] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3817] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3817] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3812] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3812] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3812] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3812] exit_group(0)               = ?
[pid  3812] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3812, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3622] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3818
./strace-static-x86_64: Process 3818 attached
[pid  3818] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3818] setpgid(0, 0)               = 0
[pid  3818] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3818] write(3, "1000", 4)         = 4
[pid  3818] close(3)                    = 0
[pid  3818] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3818] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3818] pipe2([3, 4], 0)            = 0
[pid  3818] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3818] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3818] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3818] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3818] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3816] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3816] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3816] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3816] exit_group(0)               = ?
[pid  3816] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3816, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3819
./strace-static-x86_64: Process 3819 attached
[pid  3819] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3819] setpgid(0, 0)               = 0
[pid  3819] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3819] write(3, "1000", 4)         = 4
[pid  3819] close(3)                    = 0
[pid  3819] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3819] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3819] pipe2([3, 4], 0)            = 0
[pid  3819] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3819] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3819] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3819] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3819] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3815] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3814] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3814] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3814] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3814] exit_group(0)               = ?
[pid  3813] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3815] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3813] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3815] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3813] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3817] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3815] fdatasync(-1 <unfinished ...>
[pid  3813] fdatasync(-1 <unfinished ...>
[pid  3818] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3818] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3817] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3815] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3814] +++ exited with 0 +++
[pid  3813] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3813] exit_group(0 <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3814, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3815] exit_group(0 <unfinished ...>
[pid  3817] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3617] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3818] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3817] fdatasync(-1 <unfinished ...>
[pid  3815] <... exit_group resumed>)   = ?
[pid  3813] <... exit_group resumed>)   = ?
[pid  3617] <... restart_syscall resumed>) = 0
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3818] fdatasync(-1 <unfinished ...>
[pid  3817] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3815] +++ exited with 0 +++
[pid  3813] +++ exited with 0 +++
[pid  3617] <... openat resumed>)       = 3
[pid  3818] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3817] exit_group(0 <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3813, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3815, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3818] exit_group(0 <unfinished ...>
[pid  3817] <... exit_group resumed>)   = ?
[pid  3818] <... exit_group resumed>)   = ?
[pid  3817] +++ exited with 0 +++
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3817, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3617] close(3 <unfinished ...>
[pid  3818] +++ exited with 0 +++
[pid  3617] <... close resumed>)        = 0
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3818, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3820
[pid  3620] <... openat resumed>)       = 3
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3619] <... openat resumed>)       = 3
[pid  3618] <... openat resumed>)       = 3
[pid  3620] close(3 <unfinished ...>
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3620] <... close resumed>)        = 0
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
./strace-static-x86_64: Process 3820 attached
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3619] close(3 <unfinished ...>
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3619] <... close resumed>)        = 0
[pid  3618] close(3 <unfinished ...>
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3821
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] <... close resumed>)        = 0
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3823
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3822
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3824
[pid  3820] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3819] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3819] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3819] fdatasync(-1./strace-static-x86_64: Process 3821 attached
)               = -1 EBADF (Bad file descriptor)
[pid  3821] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3819] exit_group(0 <unfinished ...>
[pid  3821] <... prctl resumed>)        = 0
[pid  3819] <... exit_group resumed>)   = ?
[pid  3821] setpgid(0, 0 <unfinished ...>
[pid  3819] +++ exited with 0 +++
[pid  3821] <... setpgid resumed>)      = 0
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3819, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
./strace-static-x86_64: Process 3824 attached
./strace-static-x86_64: Process 3823 attached
./strace-static-x86_64: Process 3822 attached
[pid  3821] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3820] <... prctl resumed>)        = 0
[pid  3616] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3824] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3823] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3822] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3821] <... openat resumed>)       = 3
[pid  3820] setpgid(0, 0 <unfinished ...>
[pid  3616] <... restart_syscall resumed>) = 0
[pid  3821] write(3, "1000", 4 <unfinished ...>
[pid  3824] <... prctl resumed>)        = 0
[pid  3823] <... prctl resumed>)        = 0
[pid  3822] <... prctl resumed>)        = 0
[pid  3821] <... write resumed>)        = 4
[pid  3820] <... setpgid resumed>)      = 0
[pid  3821] close(3 <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3821] <... close resumed>)        = 0
[pid  3616] <... openat resumed>)       = 3
[pid  3821] mkdir("./file0", 0777 <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3821] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3820] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3824] setpgid(0, 0 <unfinished ...>
[pid  3823] setpgid(0, 0 <unfinished ...>
[pid  3822] setpgid(0, 0 <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3821] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3820] <... openat resumed>)       = 3
[pid  3616] close(3 <unfinished ...>
[pid  3821] pipe2( <unfinished ...>
[pid  3820] write(3, "1000", 4 <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3824] <... setpgid resumed>)      = 0
[pid  3823] <... setpgid resumed>)      = 0
[pid  3822] <... setpgid resumed>)      = 0
[pid  3821] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3820] <... write resumed>)        = 4
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3825 attached
 <unfinished ...>
[pid  3824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3823] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3822] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3821] write(-1, NULL, 0 <unfinished ...>
[pid  3820] close(3 <unfinished ...>
[pid  3821] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3820] <... close resumed>)        = 0
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3825
[pid  3821] write(-1, NULL, 0 <unfinished ...>
[pid  3820] mkdir("./file0", 0777 <unfinished ...>
[pid  3825] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3824] <... openat resumed>)       = 3
[pid  3823] <... openat resumed>)       = 3
[pid  3822] <... openat resumed>)       = 3
[pid  3821] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3820] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3824] write(3, "1000", 4 <unfinished ...>
[pid  3822] write(3, "1000", 4 <unfinished ...>
[pid  3821] write(-1, NULL, 0 <unfinished ...>
[pid  3820] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3825] <... prctl resumed>)        = 0
[pid  3824] <... write resumed>)        = 4
[pid  3823] write(3, "1000", 4 <unfinished ...>
[pid  3822] <... write resumed>)        = 4
[pid  3821] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3820] pipe2( <unfinished ...>
[pid  3821] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3824] close(3 <unfinished ...>
[pid  3823] <... write resumed>)        = 4
[pid  3822] close(3 <unfinished ...>
[pid  3821] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3820] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3825] setpgid(0, 0 <unfinished ...>
[pid  3824] <... close resumed>)        = 0
[pid  3823] close(3 <unfinished ...>
[pid  3822] <... close resumed>)        = 0
[pid  3821] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3820] write(-1, NULL, 0 <unfinished ...>
[pid  3825] <... setpgid resumed>)      = 0
[pid  3824] mkdir("./file0", 0777 <unfinished ...>
[pid  3823] <... close resumed>)        = 0
[pid  3822] mkdir("./file0", 0777 <unfinished ...>
[pid  3820] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3824] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3823] mkdir("./file0", 0777 <unfinished ...>
[pid  3822] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3820] write(-1, NULL, 0 <unfinished ...>
[pid  3824] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3823] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3822] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3820] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3824] pipe2( <unfinished ...>
[pid  3823] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3822] pipe2( <unfinished ...>
[pid  3820] write(-1, NULL, 0 <unfinished ...>
[pid  3825] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3824] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3823] pipe2( <unfinished ...>
[pid  3822] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3820] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3824] write(-1, NULL, 0 <unfinished ...>
[pid  3822] write(-1, NULL, 0 <unfinished ...>
[pid  3820] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3823] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3825] <... openat resumed>)       = 3
[pid  3824] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3823] write(-1, NULL, 0 <unfinished ...>
[pid  3822] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3820] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3824] write(-1, NULL, 0 <unfinished ...>
[pid  3823] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3822] write(-1, NULL, 0 <unfinished ...>
[pid  3820] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3825] write(3, "1000", 4 <unfinished ...>
[pid  3824] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3823] write(-1, NULL, 0 <unfinished ...>
[pid  3822] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3825] <... write resumed>)        = 4
[pid  3824] write(-1, NULL, 0 <unfinished ...>
[pid  3823] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3822] write(-1, NULL, 0 <unfinished ...>
[pid  3825] close(3 <unfinished ...>
[pid  3824] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3823] write(-1, NULL, 0 <unfinished ...>
[pid  3822] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3825] <... close resumed>)        = 0
[pid  3824] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3823] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3822] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3825] mkdir("./file0", 0777 <unfinished ...>
[pid  3824] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3823] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3822] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3825] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3824] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3823] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3822] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3823] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3825] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3825] pipe2([3, 4], 0)            = 0
[pid  3825] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3825] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3825] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3825] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3825] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3821] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3821] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3821] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3821] exit_group(0)               = ?
[pid  3821] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3821, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3620] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3826
./strace-static-x86_64: Process 3826 attached
[pid  3826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3826] setpgid(0, 0)               = 0
[pid  3826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3826] write(3, "1000", 4)         = 4
[pid  3826] close(3)                    = 0
[pid  3826] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3826] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3826] pipe2([3, 4], 0)            = 0
[pid  3826] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3826] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3826] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3826] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3826] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3825] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3825] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3825] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3825] exit_group(0)               = ?
[pid  3825] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3825, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3 <unfinished ...>
[pid  3824] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3616] <... close resumed>)        = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3827
[pid  3823] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3823] openat(AT_FDCWD, NULL, O_RDONLY./strace-static-x86_64: Process 3827 attached
 <unfinished ...>
[pid  3824] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3820] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3823] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3823] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3823] exit_group(0)               = ?
[pid  3823] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3823, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3622] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3827] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3824] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3820] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3827] <... prctl resumed>)        = 0
[pid  3824] fdatasync(-1 <unfinished ...>
[pid  3822] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3820] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3622] close(3 <unfinished ...>
[pid  3827] setpgid(0, 0 <unfinished ...>
[pid  3824] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3822] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3820] fdatasync(-1 <unfinished ...>
[pid  3622] <... close resumed>)        = 0
[pid  3827] <... setpgid resumed>)      = 0
[pid  3824] exit_group(0 <unfinished ...>
[pid  3822] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3820] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3824] <... exit_group resumed>)   = ?
[pid  3822] fdatasync(-1 <unfinished ...>
[pid  3820] exit_group(0 <unfinished ...>
[pid  3824] +++ exited with 0 +++
[pid  3822] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3820] <... exit_group resumed>)   = ?
[pid  3822] exit_group(0 <unfinished ...>
[pid  3820] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3824, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3827] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3822] <... exit_group resumed>)   = ?
[pid  3827] <... openat resumed>)       = 3
[pid  3822] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3820, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3827] write(3, "1000", 4 <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3828
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3827] <... write resumed>)        = 4
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3822, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] <... openat resumed>)       = 3
[pid  3827] close(3 <unfinished ...>
[pid  3619] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3827] <... close resumed>)        = 0
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3827] mkdir("./file0", 0777 <unfinished ...>
[pid  3619] <... restart_syscall resumed>) = 0
[pid  3618] close(3 <unfinished ...>
[pid  3827] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3618] <... close resumed>)        = 0
[pid  3827] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3827] pipe2( <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3827] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3619] <... openat resumed>)       = 3
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3829
[pid  3827] write(-1, NULL, 0 <unfinished ...>
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3827] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3827] write(-1, NULL, 0 <unfinished ...>
[pid  3619] close(3 <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3827] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3619] <... close resumed>)        = 0
[pid  3827] write(-1, NULL, 0 <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3827] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] <... openat resumed>)       = 3
[pid  3827] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3830
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3827] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3827] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
./strace-static-x86_64: Process 3830 attached
./strace-static-x86_64: Process 3829 attached
./strace-static-x86_64: Process 3828 attached
[pid  3826] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3617] close(3 <unfinished ...>
[pid  3830] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3829] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3828] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3827] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3826] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3830] <... prctl resumed>)        = 0
[pid  3829] <... prctl resumed>)        = 0
[pid  3828] <... prctl resumed>)        = 0
[pid  3827] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3826] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3830] setpgid(0, 0 <unfinished ...>
[pid  3829] setpgid(0, 0 <unfinished ...>
[pid  3828] setpgid(0, 0 <unfinished ...>
[pid  3827] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3826] fdatasync(-1 <unfinished ...>
[pid  3830] <... setpgid resumed>)      = 0
[pid  3829] <... setpgid resumed>)      = 0
[pid  3828] <... setpgid resumed>)      = 0
[pid  3827] fdatasync(-1 <unfinished ...>
[pid  3826] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3831
./strace-static-x86_64: Process 3831 attached
[pid  3830] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3829] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3828] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3827] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3826] exit_group(0 <unfinished ...>
[pid  3831] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3830] <... openat resumed>)       = 3
[pid  3829] <... openat resumed>)       = 3
[pid  3828] <... openat resumed>)       = 3
[pid  3827] exit_group(0 <unfinished ...>
[pid  3826] <... exit_group resumed>)   = ?
[pid  3830] write(3, "1000", 4 <unfinished ...>
[pid  3829] write(3, "1000", 4 <unfinished ...>
[pid  3828] write(3, "1000", 4 <unfinished ...>
[pid  3830] <... write resumed>)        = 4
[pid  3829] <... write resumed>)        = 4
[pid  3828] <... write resumed>)        = 4
[pid  3830] close(3 <unfinished ...>
[pid  3829] close(3 <unfinished ...>
[pid  3828] close(3 <unfinished ...>
[pid  3831] <... prctl resumed>)        = 0
[pid  3830] <... close resumed>)        = 0
[pid  3829] <... close resumed>)        = 0
[pid  3828] <... close resumed>)        = 0
[pid  3827] <... exit_group resumed>)   = ?
[pid  3826] +++ exited with 0 +++
[pid  3831] setpgid(0, 0 <unfinished ...>
[pid  3830] mkdir("./file0", 0777 <unfinished ...>
[pid  3829] mkdir("./file0", 0777 <unfinished ...>
[pid  3828] mkdir("./file0", 0777 <unfinished ...>
[pid  3831] <... setpgid resumed>)      = 0
[pid  3830] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3829] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3828] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3827] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3826, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3831] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3830] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3829] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3828] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3827, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3831] <... openat resumed>)       = 3
[pid  3830] pipe2( <unfinished ...>
[pid  3829] pipe2( <unfinished ...>
[pid  3828] pipe2( <unfinished ...>
[pid  3831] write(3, "1000", 4 <unfinished ...>
[pid  3830] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3829] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3828] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3831] <... write resumed>)        = 4
[pid  3830] write(-1, NULL, 0 <unfinished ...>
[pid  3829] write(-1, NULL, 0 <unfinished ...>
[pid  3828] write(-1, NULL, 0 <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3831] close(3 <unfinished ...>
[pid  3830] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3829] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3828] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3616] <... openat resumed>)       = 3
[pid  3831] <... close resumed>)        = 0
[pid  3830] write(-1, NULL, 0 <unfinished ...>
[pid  3829] write(-1, NULL, 0 <unfinished ...>
[pid  3828] write(-1, NULL, 0 <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3831] mkdir("./file0", 0777 <unfinished ...>
[pid  3830] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3829] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3828] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3831] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3830] write(-1, NULL, 0 <unfinished ...>
[pid  3829] write(-1, NULL, 0 <unfinished ...>
[pid  3828] write(-1, NULL, 0 <unfinished ...>
[pid  3620] <... openat resumed>)       = 3
[pid  3616] close(3 <unfinished ...>
[pid  3831] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3830] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3829] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3828] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3831] pipe2( <unfinished ...>
[pid  3830] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3829] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3828] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3831] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3830] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3829] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3828] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] close(3 <unfinished ...>
[pid  3831] write(-1, NULL, 0 <unfinished ...>
[pid  3830] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3829] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3828] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3620] <... close resumed>)        = 0
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3832
./strace-static-x86_64: Process 3832 attached
[pid  3831] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3832] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3831] write(-1, NULL, 0 <unfinished ...>
[pid  3832] <... prctl resumed>)        = 0
[pid  3831] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3833
[pid  3832] setpgid(0, 0 <unfinished ...>
[pid  3831] write(-1, NULL, 0 <unfinished ...>
[pid  3832] <... setpgid resumed>)      = 0
[pid  3831] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3832] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3831] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3832] <... openat resumed>)       = 3
[pid  3831] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3832] write(3, "1000", 4 <unfinished ...>
[pid  3831] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3832] <... write resumed>)        = 4
[pid  3832] close(3)                    = 0
[pid  3832] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3832] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3832] pipe2([3, 4], 0)            = 0
[pid  3832] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3832] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3832] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3832] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3832] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3833 attached
 <unfinished ...>
[pid  3833] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3833] setpgid(0, 0)               = 0
[pid  3833] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3833] write(3, "1000", 4)         = 4
[pid  3833] close(3)                    = 0
[pid  3833] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3833] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3833] pipe2([3, 4], 0)            = 0
[pid  3833] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3833] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3833] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3833] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3833] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3830] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3830] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3830] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3830] exit_group(0)               = ?
[pid  3830] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3830, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3 <unfinished ...>
[pid  3829] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3619] <... close resumed>)        = 0
[pid  3829] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3829] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3829] fdatasync(-1 <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3834
[pid  3829] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3829] exit_group(0)               = ?
[pid  3829] +++ exited with 0 +++
./strace-static-x86_64: Process 3834 attached
[pid  3828] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3829, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3828] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3834] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3828] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3834] setpgid(0, 0 <unfinished ...>
[pid  3828] fdatasync(-1 <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3834] <... setpgid resumed>)      = 0
[pid  3828] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3618] <... openat resumed>)       = 3
[pid  3834] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3828] exit_group(0 <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3834] <... openat resumed>)       = 3
[pid  3831] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3828] <... exit_group resumed>)   = ?
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3618] close(3 <unfinished ...>
[pid  3831] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3618] <... close resumed>)        = 0
[pid  3831] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3828] +++ exited with 0 +++
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3831] fdatasync(-1 <unfinished ...>
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3828, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3831] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3831] exit_group(0)               = ?
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3835
[pid  3831] +++ exited with 0 +++
[pid  3622] <... openat resumed>)       = 3
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3831, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3834] write(3, "1000", 4 <unfinished ...>
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3835 attached
 <unfinished ...>
[pid  3834] <... write resumed>)        = 4
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3836
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3837
./strace-static-x86_64: Process 3837 attached
[pid  3837] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3837] setpgid(0, 0)               = 0
[pid  3837] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3837] write(3, "1000", 4)         = 4
[pid  3837] close(3)                    = 0
[pid  3834] close(3 <unfinished ...>
[pid  3832] <... mount resumed>)        = -1 EFAULT (Bad address)
./strace-static-x86_64: Process 3836 attached
[pid  3835] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3834] <... close resumed>)        = 0
[pid  3832] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3836] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3835] <... prctl resumed>)        = 0
[pid  3834] mkdir("./file0", 0777 <unfinished ...>
[pid  3832] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3837] mkdir("./file0", 0777 <unfinished ...>
[pid  3836] <... prctl resumed>)        = 0
[pid  3835] setpgid(0, 0 <unfinished ...>
[pid  3834] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3832] fdatasync(-1 <unfinished ...>
[pid  3837] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3836] setpgid(0, 0 <unfinished ...>
[pid  3835] <... setpgid resumed>)      = 0
[pid  3834] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3832] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3837] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3836] <... setpgid resumed>)      = 0
[pid  3835] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3834] pipe2( <unfinished ...>
[pid  3832] exit_group(0 <unfinished ...>
[pid  3837] pipe2( <unfinished ...>
[pid  3836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3835] <... openat resumed>)       = 3
[pid  3834] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3832] <... exit_group resumed>)   = ?
[pid  3837] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3837] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3837] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3837] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3837] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3834] write(-1, NULL, 0 <unfinished ...>
[pid  3837] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3837] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3835] write(3, "1000", 4 <unfinished ...>
[pid  3834] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3832] +++ exited with 0 +++
[pid  3836] <... openat resumed>)       = 3
[pid  3835] <... write resumed>)        = 4
[pid  3834] write(-1, NULL, 0 <unfinished ...>
[pid  3836] write(3, "1000", 4 <unfinished ...>
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3832, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3835] close(3 <unfinished ...>
[pid  3834] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3836] <... write resumed>)        = 4
[pid  3836] close(3 <unfinished ...>
[pid  3835] <... close resumed>)        = 0
[pid  3834] write(-1, NULL, 0 <unfinished ...>
[pid  3836] <... close resumed>)        = 0
[pid  3835] mkdir("./file0", 0777 <unfinished ...>
[pid  3834] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3836] mkdir("./file0", 0777 <unfinished ...>
[pid  3835] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3834] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3833] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3836] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3835] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3834] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3833] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3836] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3835] pipe2( <unfinished ...>
[pid  3834] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3833] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3836] pipe2( <unfinished ...>
[pid  3835] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3833] fdatasync(-1 <unfinished ...>
[pid  3836] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3835] write(-1, NULL, 0 <unfinished ...>
[pid  3833] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3836] write(-1, NULL, 0 <unfinished ...>
[pid  3835] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3833] exit_group(0 <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
[pid  3836] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3836] write(-1, NULL, 0 <unfinished ...>
[pid  3835] write(-1, NULL, 0 <unfinished ...>
[pid  3833] <... exit_group resumed>)   = ?
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3836] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3835] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3833] +++ exited with 0 +++
[pid  3836] write(-1, NULL, 0 <unfinished ...>
[pid  3835] write(-1, NULL, 0 <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3836] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3835] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3833, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] close(3 <unfinished ...>
[pid  3836] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3835] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3836] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3835] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] <... openat resumed>)       = 3
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3836] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3835] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3838
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3837] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3837] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3837] fdatasync(-1 <unfinished ...>
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3839
[pid  3837] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3837] exit_group(0)               = ?
[pid  3837] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3837, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...>) = 0
./strace-static-x86_64: Process 3838 attached
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3838] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3838] <... prctl resumed>)        = 0
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3838] setpgid(0, 0 <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3838] <... setpgid resumed>)      = 0
[pid  3617] close(3 <unfinished ...>
[pid  3838] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3838] <... openat resumed>)       = 3
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3838] write(3, "1000", 4)         = 4
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3840
[pid  3838] close(3)                    = 0
[pid  3838] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3838] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3838] pipe2([3, 4], 0)            = 0
[pid  3838] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3838] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3838] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3838] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3838] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3840 attached
 <unfinished ...>
[pid  3840] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3840] setpgid(0, 0)               = 0
./strace-static-x86_64: Process 3839 attached
[pid  3840] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3840] write(3, "1000", 4)         = 4
[pid  3840] close(3)                    = 0
[pid  3840] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3840] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3840] pipe2([3, 4], 0)            = 0
[pid  3840] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3840] write(-1, NULL, 0 <unfinished ...>
[pid  3839] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3836] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3840] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3840] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3840] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3840] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3839] <... prctl resumed>)        = 0
[pid  3836] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3834] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3839] setpgid(0, 0 <unfinished ...>
[pid  3836] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3835] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3834] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3836] fdatasync(-1 <unfinished ...>
[pid  3835] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3834] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3836] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3835] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3834] fdatasync(-1 <unfinished ...>
[pid  3839] <... setpgid resumed>)      = 0
[pid  3836] exit_group(0 <unfinished ...>
[pid  3835] fdatasync(-1 <unfinished ...>
[pid  3834] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3836] <... exit_group resumed>)   = ?
[pid  3835] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3834] exit_group(0 <unfinished ...>
[pid  3839] <... openat resumed>)       = 3
[pid  3836] +++ exited with 0 +++
[pid  3835] exit_group(0 <unfinished ...>
[pid  3834] <... exit_group resumed>)   = ?
[pid  3839] write(3, "1000", 4 <unfinished ...>
[pid  3835] <... exit_group resumed>)   = ?
[pid  3834] +++ exited with 0 +++
[pid  3839] <... write resumed>)        = 4
[pid  3835] +++ exited with 0 +++
[pid  3839] close(3)                    = 0
[pid  3839] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3839] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3839] pipe2([3, 4], 0)            = 0
[pid  3839] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3839] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3839] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3839] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3839] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3836, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3834, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3835, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3618] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3619] <... restart_syscall resumed>) = 0
[pid  3618] <... restart_syscall resumed>) = 0
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3619] <... openat resumed>)       = 3
[pid  3618] <... openat resumed>)       = 3
[pid  3622] close(3 <unfinished ...>
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3622] <... close resumed>)        = 0
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3619] close(3 <unfinished ...>
[pid  3618] close(3 <unfinished ...>
[pid  3619] <... close resumed>)        = 0
[pid  3618] <... close resumed>)        = 0
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3841
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3842
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3843
./strace-static-x86_64: Process 3841 attached
[pid  3841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
./strace-static-x86_64: Process 3842 attached
[pid  3841] setpgid(0, 0 <unfinished ...>
[pid  3842] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3841] <... setpgid resumed>)      = 0
[pid  3842] <... prctl resumed>)        = 0
[pid  3841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3842] setpgid(0, 0./strace-static-x86_64: Process 3843 attached
 <unfinished ...>
[pid  3843] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3842] <... setpgid resumed>)      = 0
[pid  3841] write(3, "1000", 4 <unfinished ...>
[pid  3842] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3841] <... write resumed>)        = 4
[pid  3842] <... openat resumed>)       = 3
[pid  3841] close(3 <unfinished ...>
[pid  3842] write(3, "1000", 4 <unfinished ...>
[pid  3841] <... close resumed>)        = 0
[pid  3842] <... write resumed>)        = 4
[pid  3841] mkdir("./file0", 0777 <unfinished ...>
[pid  3842] close(3 <unfinished ...>
[pid  3841] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3842] <... close resumed>)        = 0
[pid  3841] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3842] mkdir("./file0", 0777 <unfinished ...>
[pid  3841] pipe2( <unfinished ...>
[pid  3843] <... prctl resumed>)        = 0
[pid  3842] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3841] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3843] setpgid(0, 0 <unfinished ...>
[pid  3842] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3841] write(-1, NULL, 0 <unfinished ...>
[pid  3843] <... setpgid resumed>)      = 0
[pid  3842] pipe2( <unfinished ...>
[pid  3841] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3838] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3843] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3842] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3841] write(-1, NULL, 0 <unfinished ...>
[pid  3838] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3843] <... openat resumed>)       = 3
[pid  3842] write(-1, NULL, 0 <unfinished ...>
[pid  3841] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3838] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3843] write(3, "1000", 4 <unfinished ...>
[pid  3842] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3841] write(-1, NULL, 0 <unfinished ...>
[pid  3838] fdatasync(-1 <unfinished ...>
[pid  3842] write(-1, NULL, 0 <unfinished ...>
[pid  3841] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3838] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3843] <... write resumed>)        = 4
[pid  3842] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3841] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3838] exit_group(0 <unfinished ...>
[pid  3843] close(3 <unfinished ...>
[pid  3842] write(-1, NULL, 0 <unfinished ...>
[pid  3841] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3838] <... exit_group resumed>)   = ?
[pid  3843] <... close resumed>)        = 0
[pid  3842] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3841] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3843] mkdir("./file0", 0777 <unfinished ...>
[pid  3842] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3838] +++ exited with 0 +++
[pid  3843] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3842] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3843] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3842] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3843] pipe2([3, 4], 0)            = 0
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3838, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3843] write(-1, NULL, 0 <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3843] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3843] write(-1, NULL, 0 <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
[pid  3843] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3843] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3843] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3843] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3840] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3840] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3840] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3840] exit_group(0)               = ?
[pid  3840] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3840, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3844
./strace-static-x86_64: Process 3844 attached
[pid  3844] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3844] setpgid(0, 0)               = 0
[pid  3844] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3844] write(3, "1000", 4)         = 4
[pid  3844] close(3)                    = 0
[pid  3844] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3844] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3844] pipe2([3, 4], 0)            = 0
[pid  3844] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3844] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3844] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3844] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3844] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3845
./strace-static-x86_64: Process 3845 attached
[pid  3845] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3845] setpgid(0, 0)               = 0
[pid  3845] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3845] write(3, "1000", 4)         = 4
[pid  3845] close(3)                    = 0
[pid  3845] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3845] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3845] pipe2([3, 4], 0)            = 0
[pid  3845] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3845] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3845] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3845] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3845] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3839] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3839] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3839] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3839] exit_group(0)               = ?
[pid  3839] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3839, si_uid=0, si_status=0, si_utime=0, si_stime=2} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3846
./strace-static-x86_64: Process 3846 attached
[pid  3846] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3846] setpgid(0, 0)               = 0
[pid  3846] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3846] write(3, "1000", 4)         = 4
[pid  3846] close(3)                    = 0
[pid  3846] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3846] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3846] pipe2([3, 4], 0)            = 0
[pid  3846] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3846] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3846] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3846] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3846] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3841] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3843] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3841] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3843] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3843] fdatasync(-1 <unfinished ...>
[pid  3842] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3841] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3843] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3842] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3841] fdatasync(-1 <unfinished ...>
[pid  3843] exit_group(0 <unfinished ...>
[pid  3842] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3841] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3843] <... exit_group resumed>)   = ?
[pid  3841] exit_group(0 <unfinished ...>
[pid  3842] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3841] <... exit_group resumed>)   = ?
[pid  3842] exit_group(0 <unfinished ...>
[pid  3843] +++ exited with 0 +++
[pid  3842] <... exit_group resumed>)   = ?
[pid  3841] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3841, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3843, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3842] +++ exited with 0 +++
[pid  3622] <... openat resumed>)       = 3
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3842, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3619] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  3622] close(3 <unfinished ...>
[pid  3619] <... restart_syscall resumed>) = 0
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3622] <... close resumed>)        = 0
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] close(3./strace-static-x86_64: Process 3847 attached
 <unfinished ...>
[pid  3844] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3847] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3844] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3847] <... prctl resumed>)        = 0
[pid  3844] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3847] setpgid(0, 0 <unfinished ...>
[pid  3844] fdatasync(-1 <unfinished ...>
[pid  3847] <... setpgid resumed>)      = 0
[pid  3844] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3847] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3844] exit_group(0 <unfinished ...>
[pid  3847] <... openat resumed>)       = 3
[pid  3844] <... exit_group resumed>)   = ?
[pid  3847] write(3, "1000", 4 <unfinished ...>
[pid  3844] +++ exited with 0 +++
[pid  3847] <... write resumed>)        = 4
[pid  3847] close(3)                    = 0
[pid  3847] mkdir("./file0", 0777 <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3618] <... close resumed>)        = 0
[pid  3847] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3847
[pid  3619] <... openat resumed>)       = 3
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3844, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3848 attached
 <unfinished ...>
[pid  3847] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3847] pipe2( <unfinished ...>
[pid  3619] close(3 <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3848
[pid  3617] <... openat resumed>)       = 3
[pid  3848] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3847] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3619] <... close resumed>)        = 0
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3848] <... prctl resumed>)        = 0
[pid  3847] write(-1, NULL, 0 <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3848] setpgid(0, 0 <unfinished ...>
[pid  3847] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3847] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3847] write(-1, NULL, 0 <unfinished ...>
[pid  3848] <... setpgid resumed>)      = 0
[pid  3847] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3849
[pid  3617] close(3 <unfinished ...>
[pid  3848] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3847] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3848] <... openat resumed>)       = 3
[pid  3847] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3848] write(3, "1000", 4 <unfinished ...>
[pid  3847] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3848] <... write resumed>)        = 4
[pid  3848] close(3 <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3850
./strace-static-x86_64: Process 3849 attached
[pid  3849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3849] setpgid(0, 0)               = 0
[pid  3849] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3849] write(3, "1000", 4 <unfinished ...>
[pid  3848] <... close resumed>)        = 0
[pid  3849] <... write resumed>)        = 4
[pid  3848] mkdir("./file0", 0777 <unfinished ...>
[pid  3849] close(3 <unfinished ...>
[pid  3848] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3849] <... close resumed>)        = 0
[pid  3848] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3849] mkdir("./file0", 0777 <unfinished ...>
[pid  3848] pipe2( <unfinished ...>
[pid  3849] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3848] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3849] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3848] write(-1, NULL, 0 <unfinished ...>
[pid  3849] pipe2( <unfinished ...>
[pid  3848] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3849] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3848] write(-1, NULL, 0./strace-static-x86_64: Process 3850 attached
 <unfinished ...>
[pid  3849] write(-1, NULL, 0 <unfinished ...>
[pid  3848] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3850] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3849] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3848] write(-1, NULL, 0 <unfinished ...>
[pid  3850] <... prctl resumed>)        = 0
[pid  3849] write(-1, NULL, 0 <unfinished ...>
[pid  3848] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3850] setpgid(0, 0 <unfinished ...>
[pid  3849] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3848] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3850] <... setpgid resumed>)      = 0
[pid  3849] write(-1, NULL, 0 <unfinished ...>
[pid  3848] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3849] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3848] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3850] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3849] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3850] <... openat resumed>)       = 3
[pid  3849] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3850] write(3, "1000", 4)         = 4
[pid  3850] close(3)                    = 0
[pid  3850] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3850] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3850] pipe2([3, 4], 0)            = 0
[pid  3850] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3850] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3850] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3850] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3850] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3845] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3845] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3845] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3845] exit_group(0)               = ?
[pid  3845] +++ exited with 0 +++
[pid  3846] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3846] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3845, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3846] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3846] fdatasync(-1 <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
[pid  3846] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3846] exit_group(0 <unfinished ...>
[pid  3616] close(3 <unfinished ...>
[pid  3846] <... exit_group resumed>)   = ?
[pid  3616] <... close resumed>)        = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3846] +++ exited with 0 +++
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3851
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3846, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3852
./strace-static-x86_64: Process 3851 attached
[pid  3851] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3851] setpgid(0, 0)               = 0
[pid  3851] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3851] write(3, "1000", 4)         = 4
./strace-static-x86_64: Process 3852 attached
[pid  3851] close(3 <unfinished ...>
[pid  3852] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3851] <... close resumed>)        = 0
[pid  3852] <... prctl resumed>)        = 0
[pid  3851] mkdir("./file0", 0777 <unfinished ...>
[pid  3852] setpgid(0, 0 <unfinished ...>
[pid  3851] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3852] <... setpgid resumed>)      = 0
[pid  3851] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3851] pipe2( <unfinished ...>
[pid  3852] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3851] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3851] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3852] <... openat resumed>)       = 3
[pid  3852] write(3, "1000", 4 <unfinished ...>
[pid  3851] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3852] <... write resumed>)        = 4
[pid  3852] close(3 <unfinished ...>
[pid  3851] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3852] <... close resumed>)        = 0
[pid  3852] mkdir("./file0", 0777 <unfinished ...>
[pid  3851] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3852] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3851] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3851] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3852] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3850] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3850] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3850] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3850] exit_group(0)               = ?
[pid  3850] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3850, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3853
./strace-static-x86_64: Process 3853 attached
[pid  3853] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3853] setpgid(0, 0)               = 0
[pid  3853] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3853] write(3, "1000", 4)         = 4
[pid  3853] close(3)                    = 0
[pid  3853] mkdir("./file0", 0777 <unfinished ...>
[pid  3852] pipe2( <unfinished ...>
[pid  3847] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3853] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3853] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3849] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3847] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3849] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3847] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3849] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3847] fdatasync(-1 <unfinished ...>
[pid  3849] fdatasync(-1 <unfinished ...>
[pid  3847] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3849] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3847] exit_group(0 <unfinished ...>
[pid  3849] exit_group(0 <unfinished ...>
[pid  3847] <... exit_group resumed>)   = ?
[pid  3849] <... exit_group resumed>)   = ?
[pid  3847] +++ exited with 0 +++
[pid  3853] pipe2( <unfinished ...>
[pid  3852] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3849] +++ exited with 0 +++
[pid  3853] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3852] write(-1, NULL, 0 <unfinished ...>
[pid  3848] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3847, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3849, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3853] write(-1, NULL, 0 <unfinished ...>
[pid  3852] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3848] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3853] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3852] write(-1, NULL, 0 <unfinished ...>
[pid  3848] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3622] <... openat resumed>)       = 3
[pid  3853] write(-1, NULL, 0 <unfinished ...>
[pid  3848] fdatasync(-1 <unfinished ...>
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3853] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3852] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3848] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3853] write(-1, NULL, 0 <unfinished ...>
[pid  3852] write(-1, NULL, 0 <unfinished ...>
[pid  3848] exit_group(0 <unfinished ...>
[pid  3622] close(3 <unfinished ...>
[pid  3853] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3852] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3848] <... exit_group resumed>)   = ?
[pid  3622] <... close resumed>)        = 0
[pid  3853] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3852] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3848] +++ exited with 0 +++
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3853] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3852] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3853] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3852] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3854
[pid  3619] <... openat resumed>)       = 3
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3848, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3618] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3618] <... restart_syscall resumed>) = 0
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3855
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3856
./strace-static-x86_64: Process 3855 attached
[pid  3855] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3855] setpgid(0, 0)               = 0
./strace-static-x86_64: Process 3856 attached
./strace-static-x86_64: Process 3854 attached
[pid  3851] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3851] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3851] fdatasync(-1 <unfinished ...>
[pid  3856] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3854] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3851] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3856] <... prctl resumed>)        = 0
[pid  3854] <... prctl resumed>)        = 0
[pid  3851] exit_group(0 <unfinished ...>
[pid  3856] setpgid(0, 0 <unfinished ...>
[pid  3855] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3854] setpgid(0, 0 <unfinished ...>
[pid  3851] <... exit_group resumed>)   = ?
[pid  3856] <... setpgid resumed>)      = 0
[pid  3855] <... openat resumed>)       = 3
[pid  3854] <... setpgid resumed>)      = 0
[pid  3851] +++ exited with 0 +++
[pid  3856] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3855] write(3, "1000", 4 <unfinished ...>
[pid  3854] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3856] <... openat resumed>)       = 3
[pid  3855] <... write resumed>)        = 4
[pid  3854] <... openat resumed>)       = 3
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3851, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3856] write(3, "1000", 4 <unfinished ...>
[pid  3855] close(3 <unfinished ...>
[pid  3854] write(3, "1000", 4 <unfinished ...>
[pid  3616] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3856] <... write resumed>)        = 4
[pid  3855] <... close resumed>)        = 0
[pid  3854] <... write resumed>)        = 4
[pid  3616] <... restart_syscall resumed>) = 0
[pid  3856] close(3 <unfinished ...>
[pid  3855] mkdir("./file0", 0777 <unfinished ...>
[pid  3854] close(3 <unfinished ...>
[pid  3856] <... close resumed>)        = 0
[pid  3855] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3854] <... close resumed>)        = 0
[pid  3856] mkdir("./file0", 0777 <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3856] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3855] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3854] mkdir("./file0", 0777 <unfinished ...>
[pid  3856] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3855] pipe2( <unfinished ...>
[pid  3854] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3616] <... openat resumed>)       = 3
[pid  3856] pipe2( <unfinished ...>
[pid  3855] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3854] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3856] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3855] write(-1, NULL, 0 <unfinished ...>
[pid  3854] pipe2( <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3616] close(3 <unfinished ...>
[pid  3856] write(-1, NULL, 0 <unfinished ...>
[pid  3855] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3854] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3856] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3855] write(-1, NULL, 0 <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3856] write(-1, NULL, 0 <unfinished ...>
[pid  3855] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3854] write(-1, NULL, 0 <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3856] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3855] write(-1, NULL, 0 <unfinished ...>
[pid  3854] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3856] write(-1, NULL, 0 <unfinished ...>
[pid  3855] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3854] write(-1, NULL, 0 <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3857
[pid  3856] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3855] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3854] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3856] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3855] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3854] write(-1, NULL, 0 <unfinished ...>
[pid  3856] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3855] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3854] <... write resumed>)        = -1 EBADF (Bad file descriptor)
./strace-static-x86_64: Process 3857 attached
[pid  3856] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3854] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3857] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3854] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3857] <... prctl resumed>)        = 0
[pid  3853] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3857] setpgid(0, 0 <unfinished ...>
[pid  3853] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3857] <... setpgid resumed>)      = 0
[pid  3853] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3857] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3853] fdatasync(-1 <unfinished ...>
[pid  3857] <... openat resumed>)       = 3
[pid  3853] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3857] write(3, "1000", 4 <unfinished ...>
[pid  3853] exit_group(0 <unfinished ...>
[pid  3857] <... write resumed>)        = 4
[pid  3853] <... exit_group resumed>)   = ?
[pid  3857] close(3 <unfinished ...>
[pid  3853] +++ exited with 0 +++
[pid  3857] <... close resumed>)        = 0
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3853, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3857] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3857] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3857] pipe2([3, 4], 0)            = 0
[pid  3857] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3857] write(-1, NULL, 0 <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3857] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] <... openat resumed>)       = 3
[pid  3857] write(-1, NULL, 0 <unfinished ...>
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3857] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3857] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3617] close(3 <unfinished ...>
[pid  3857] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] <... close resumed>)        = 0
[pid  3857] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3858 attached
, child_tidptr=0x555556dbb690) = 3858
[pid  3858] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3858] setpgid(0, 0)               = 0
[pid  3858] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3852] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3852] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3852] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3852] exit_group(0)               = ?
[pid  3852] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3852, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3858] <... openat resumed>)       = 3
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3858] write(3, "1000", 4)         = 4
[pid  3858] close(3)                    = 0
[pid  3858] mkdir("./file0", 0777./strace-static-x86_64: Process 3859 attached
)      = -1 EEXIST (File exists)
[pid  3854] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3858] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3859
[pid  3858] pipe2([3, 4], 0)            = 0
[pid  3858] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3858] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3858] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3858] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3858] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3859] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3854] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3855] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3859] <... prctl resumed>)        = 0
[pid  3855] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3854] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3854] fdatasync(-1 <unfinished ...>
[pid  3859] setpgid(0, 0 <unfinished ...>
[pid  3855] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3854] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3859] <... setpgid resumed>)      = 0
[pid  3855] fdatasync(-1 <unfinished ...>
[pid  3854] exit_group(0 <unfinished ...>
[pid  3855] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3854] <... exit_group resumed>)   = ?
[pid  3856] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3856] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3856] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3856] exit_group(0)               = ?
[pid  3856] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3856, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3859] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3859] write(3, "1000", 4 <unfinished ...>
[pid  3618] <... restart_syscall resumed>) = 0
[pid  3859] <... write resumed>)        = 4
[pid  3859] close(3)                    = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3859] mkdir("./file0", 0777 <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  3859] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3855] exit_group(0 <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3859] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3855] <... exit_group resumed>)   = ?
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3859] pipe2( <unfinished ...>
[pid  3618] close(3 <unfinished ...>
[pid  3859] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3618] <... close resumed>)        = 0
[pid  3859] write(-1, NULL, 0 <unfinished ...>
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3859] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3855] +++ exited with 0 +++
[pid  3854] +++ exited with 0 +++
./strace-static-x86_64: Process 3860 attached
[pid  3859] write(-1, NULL, 0 <unfinished ...>
[pid  3857] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3860
[pid  3860] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3857] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3860] <... prctl resumed>)        = 0
[pid  3857] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3860] setpgid(0, 0 <unfinished ...>
[pid  3857] fdatasync(-1 <unfinished ...>
[pid  3860] <... setpgid resumed>)      = 0
[pid  3857] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3857] exit_group(0 <unfinished ...>
[pid  3860] <... openat resumed>)       = 3
[pid  3857] <... exit_group resumed>)   = ?
[pid  3860] write(3, "1000", 4 <unfinished ...>
[pid  3857] +++ exited with 0 +++
[pid  3860] <... write resumed>)        = 4
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3857, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3860] close(3)                    = 0
[pid  3860] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3860] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3860] pipe2( <unfinished ...>
[pid  3859] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3854, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3855, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3860] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3859] write(-1, NULL, 0 <unfinished ...>
[pid  3622] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3619] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3860] write(-1, NULL, 0 <unfinished ...>
[pid  3859] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... restart_syscall resumed>) = 0
[pid  3619] <... restart_syscall resumed>) = 0
[pid  3860] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3859] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3860] write(-1, NULL, 0 <unfinished ...>
[pid  3859] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3616] <... openat resumed>)       = 3
[pid  3860] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3859] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3860] write(-1, NULL, 0 <unfinished ...>
[pid  3622] <... openat resumed>)       = 3
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3860] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3619] <... openat resumed>)       = 3
[pid  3616] close(3 <unfinished ...>
[pid  3860] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3860] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] close(3 <unfinished ...>
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3860] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3622] <... close resumed>)        = 0
[pid  3619] close(3 <unfinished ...>
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3861
[pid  3619] <... close resumed>)        = 0
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3862
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3862 attached
 <unfinished ...>
[pid  3862] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3863
[pid  3862] <... prctl resumed>)        = 0
[pid  3862] setpgid(0, 0)               = 0
[pid  3862] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3862] write(3, "1000", 4./strace-static-x86_64: Process 3861 attached
 <unfinished ...>
[pid  3861] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3862] <... write resumed>)        = 4
[pid  3861] <... prctl resumed>)        = 0
[pid  3862] close(3)                    = 0
[pid  3861] setpgid(0, 0 <unfinished ...>
[pid  3862] mkdir("./file0", 0777 <unfinished ...>
[pid  3861] <... setpgid resumed>)      = 0
[pid  3862] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3861] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3862] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3861] <... openat resumed>)       = 3
[pid  3862] pipe2( <unfinished ...>
[pid  3861] write(3, "1000", 4 <unfinished ...>
[pid  3862] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3861] <... write resumed>)        = 4
[pid  3861] close(3./strace-static-x86_64: Process 3863 attached
 <unfinished ...>
[pid  3862] write(-1, NULL, 0 <unfinished ...>
[pid  3861] <... close resumed>)        = 0
[pid  3863] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3862] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3861] mkdir("./file0", 0777 <unfinished ...>
[pid  3863] <... prctl resumed>)        = 0
[pid  3862] write(-1, NULL, 0 <unfinished ...>
[pid  3861] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3863] setpgid(0, 0 <unfinished ...>
[pid  3862] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3861] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3863] <... setpgid resumed>)      = 0
[pid  3862] write(-1, NULL, 0 <unfinished ...>
[pid  3861] pipe2( <unfinished ...>
[pid  3863] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3862] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3863] <... openat resumed>)       = 3
[pid  3862] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3863] write(3, "1000", 4 <unfinished ...>
[pid  3862] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3863] <... write resumed>)        = 4
[pid  3862] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3858] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3863] close(3 <unfinished ...>
[pid  3861] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3863] <... close resumed>)        = 0
[pid  3863] mkdir("./file0", 0777 <unfinished ...>
[pid  3858] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3863] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3858] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3863] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3858] fdatasync(-1 <unfinished ...>
[pid  3863] pipe2( <unfinished ...>
[pid  3858] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3863] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3858] exit_group(0 <unfinished ...>
[pid  3863] write(-1, NULL, 0 <unfinished ...>
[pid  3861] write(-1, NULL, 0 <unfinished ...>
[pid  3858] <... exit_group resumed>)   = ?
[pid  3863] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3863] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3863] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3858] +++ exited with 0 +++
[pid  3863] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3861] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3863] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3861] write(-1, NULL, 0 <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3858, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3863] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3861] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3861] write(-1, NULL, 0 <unfinished ...>
[pid  3617] <... restart_syscall resumed>) = 0
[pid  3861] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3861] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3861] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3 <unfinished ...>
[pid  3859] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3617] <... close resumed>)        = 0
[pid  3859] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3859] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3859] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3864
./strace-static-x86_64: Process 3864 attached
[pid  3859] exit_group(0 <unfinished ...>
[pid  3864] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3859] <... exit_group resumed>)   = ?
[pid  3864] <... prctl resumed>)        = 0
[pid  3859] +++ exited with 0 +++
[pid  3864] setpgid(0, 0)               = 0
[pid  3864] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3864] write(3, "1000", 4)         = 4
[pid  3864] close(3)                    = 0
[pid  3864] mkdir("./file0", 0777 <unfinished ...>
[pid  3860] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3859, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3864] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3864] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3864] pipe2([3, 4], 0)            = 0
[pid  3864] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3864] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3864] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3864] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3864] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3860] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3860] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3860] fdatasync(-1 <unfinished ...>
[pid  3620] close(3)                    = 0
[pid  3860] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3865 attached
 <unfinished ...>
[pid  3862] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3860] exit_group(0 <unfinished ...>
[pid  3862] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3860] <... exit_group resumed>)   = ?
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3865
[pid  3865] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3862] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3860] +++ exited with 0 +++
[pid  3862] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3862] exit_group(0)               = ?
[pid  3862] +++ exited with 0 +++
[pid  3865] <... prctl resumed>)        = 0
[pid  3865] setpgid(0, 0)               = 0
[pid  3865] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3865] write(3, "1000", 4)         = 4
[pid  3865] close(3)                    = 0
[pid  3865] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3865] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3862, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3860, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3865] pipe2([3, 4], 0)            = 0
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3866
[pid  3865] write(-1, NULL, 0 <unfinished ...>
[pid  3622] <... openat resumed>)       = 3
[pid  3865] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3866 attached
 <unfinished ...>
[pid  3865] write(-1, NULL, 0 <unfinished ...>
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3865] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] close(3 <unfinished ...>
[pid  3866] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3865] write(-1, NULL, 0 <unfinished ...>
[pid  3622] <... close resumed>)        = 0
[pid  3866] <... prctl resumed>)        = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3866] setpgid(0, 0 <unfinished ...>
[pid  3865] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3865] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3866] <... setpgid resumed>)      = 0
[pid  3865] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3866] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3865] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3867
[pid  3866] <... openat resumed>)       = 3
[pid  3866] write(3, "1000", 4)         = 4
[pid  3866] close(3)                    = 0
[pid  3866] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3866] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3866] pipe2(./strace-static-x86_64: Process 3867 attached
[3, 4], 0)            = 0
[pid  3867] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3866] write(-1, NULL, 0 <unfinished ...>
[pid  3867] <... prctl resumed>)        = 0
[pid  3866] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3867] setpgid(0, 0 <unfinished ...>
[pid  3866] write(-1, NULL, 0 <unfinished ...>
[pid  3867] <... setpgid resumed>)      = 0
[pid  3866] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3867] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3866] write(-1, NULL, 0 <unfinished ...>
[pid  3867] <... openat resumed>)       = 3
[pid  3866] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3867] write(3, "1000", 4)         = 4
[pid  3866] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3867] close(3 <unfinished ...>
[pid  3866] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3867] <... close resumed>)        = 0
[pid  3867] mkdir("./file0", 0777 <unfinished ...>
[pid  3866] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3867] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3867] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3867] pipe2([3, 4], 0)            = 0
[pid  3867] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3867] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3867] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3867] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3867] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3861] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3863] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3863] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3863] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3863] exit_group(0)               = ?
[pid  3863] +++ exited with 0 +++
[pid  3861] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3863, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3861] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3864] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3861] fdatasync(-1 <unfinished ...>
[pid  3864] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3861] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3864] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3861] exit_group(0 <unfinished ...>
[pid  3864] fdatasync(-1 <unfinished ...>
[pid  3861] <... exit_group resumed>)   = ?
[pid  3864] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3861] +++ exited with 0 +++
[pid  3865] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3864] exit_group(0 <unfinished ...>
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3861, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3865] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3865] fdatasync(-1 <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3865] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3616] <... openat resumed>)       = 3
[pid  3865] exit_group(0 <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3865] <... exit_group resumed>)   = ?
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3866] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3865] +++ exited with 0 +++
[pid  3864] <... exit_group resumed>)   = ?
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3616] close(3 <unfinished ...>
[pid  3867] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3866] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3864] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3865, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] <... openat resumed>)       = 3
[pid  3616] <... close resumed>)        = 0
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3866] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3867] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3866] fdatasync(-1 <unfinished ...>
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3619] close(3 <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3864, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3868
[pid  3867] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3866] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3620] <... openat resumed>)       = 3
[pid  3619] <... close resumed>)        = 0
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3867] fdatasync(-1 <unfinished ...>
[pid  3866] exit_group(0 <unfinished ...>
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3867] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3866] <... exit_group resumed>)   = ?
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3867] exit_group(0 <unfinished ...>
[pid  3620] close(3 <unfinished ...>
[pid  3867] <... exit_group resumed>)   = ?
[pid  3620] <... close resumed>)        = 0
[pid  3867] +++ exited with 0 +++
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3867, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3869
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3870
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3617] close(3./strace-static-x86_64: Process 3868 attached
 <unfinished ...>
[pid  3866] +++ exited with 0 +++
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3868] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3868] <... prctl resumed>)        = 0
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3871
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3866, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3868] setpgid(0, 0)               = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3868] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3618] <... openat resumed>)       = 3
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3872
[pid  3868] write(3, "1000", 4 <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3868] <... write resumed>)        = 4
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
./strace-static-x86_64: Process 3869 attached
[pid  3868] close(3 <unfinished ...>
[pid  3618] close(3 <unfinished ...>
[pid  3869] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3868] <... close resumed>)        = 0
./strace-static-x86_64: Process 3870 attached
[pid  3869] <... prctl resumed>)        = 0
[pid  3868] mkdir("./file0", 0777 <unfinished ...>
[pid  3618] <... close resumed>)        = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3871 attached
 <unfinished ...>
[pid  3869] setpgid(0, 0 <unfinished ...>
[pid  3868] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3871] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3870] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3869] <... setpgid resumed>)      = 0
[pid  3868] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3871] <... prctl resumed>)        = 0
[pid  3870] <... prctl resumed>)        = 0
[pid  3869] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3868] pipe2(./strace-static-x86_64: Process 3872 attached
 <unfinished ...>
[pid  3871] setpgid(0, 0 <unfinished ...>
[pid  3870] setpgid(0, 0 <unfinished ...>
[pid  3869] <... openat resumed>)       = 3
[pid  3868] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3873
[pid  3872] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3871] <... setpgid resumed>)      = 0
[pid  3870] <... setpgid resumed>)      = 0
[pid  3869] write(3, "1000", 4 <unfinished ...>
[pid  3868] write(-1, NULL, 0 <unfinished ...>
[pid  3871] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3869] <... write resumed>)        = 4
[pid  3868] <... write resumed>)        = -1 EBADF (Bad file descriptor)
./strace-static-x86_64: Process 3873 attached
[pid  3872] <... prctl resumed>)        = 0
[pid  3871] <... openat resumed>)       = 3
[pid  3870] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3869] close(3 <unfinished ...>
[pid  3868] write(-1, NULL, 0 <unfinished ...>
[pid  3873] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3872] setpgid(0, 0 <unfinished ...>
[pid  3871] write(3, "1000", 4 <unfinished ...>
[pid  3870] <... openat resumed>)       = 3
[pid  3869] <... close resumed>)        = 0
[pid  3868] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3873] <... prctl resumed>)        = 0
[pid  3872] <... setpgid resumed>)      = 0
[pid  3871] <... write resumed>)        = 4
[pid  3870] write(3, "1000", 4 <unfinished ...>
[pid  3869] mkdir("./file0", 0777 <unfinished ...>
[pid  3868] write(-1, NULL, 0 <unfinished ...>
[pid  3873] setpgid(0, 0 <unfinished ...>
[pid  3872] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3871] close(3 <unfinished ...>
[pid  3870] <... write resumed>)        = 4
[pid  3869] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3868] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3873] <... setpgid resumed>)      = 0
[pid  3872] <... openat resumed>)       = 3
[pid  3871] <... close resumed>)        = 0
[pid  3870] close(3 <unfinished ...>
[pid  3869] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3868] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3873] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3872] write(3, "1000", 4 <unfinished ...>
[pid  3871] mkdir("./file0", 0777 <unfinished ...>
[pid  3870] <... close resumed>)        = 0
[pid  3869] pipe2( <unfinished ...>
[pid  3868] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3873] <... openat resumed>)       = 3
[pid  3872] <... write resumed>)        = 4
[pid  3871] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3870] mkdir("./file0", 0777 <unfinished ...>
[pid  3869] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3868] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3873] write(3, "1000", 4 <unfinished ...>
[pid  3872] close(3 <unfinished ...>
[pid  3871] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3870] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3869] write(-1, NULL, 0 <unfinished ...>
[pid  3873] <... write resumed>)        = 4
[pid  3872] <... close resumed>)        = 0
[pid  3871] pipe2( <unfinished ...>
[pid  3870] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3869] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3873] close(3 <unfinished ...>
[pid  3872] mkdir("./file0", 0777 <unfinished ...>
[pid  3871] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3870] pipe2( <unfinished ...>
[pid  3869] write(-1, NULL, 0 <unfinished ...>
[pid  3873] <... close resumed>)        = 0
[pid  3872] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3871] write(-1, NULL, 0 <unfinished ...>
[pid  3870] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3869] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3873] mkdir("./file0", 0777 <unfinished ...>
[pid  3872] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3871] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3870] write(-1, NULL, 0 <unfinished ...>
[pid  3869] write(-1, NULL, 0 <unfinished ...>
[pid  3873] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3872] pipe2( <unfinished ...>
[pid  3871] write(-1, NULL, 0 <unfinished ...>
[pid  3870] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3869] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3873] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3872] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3871] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3870] write(-1, NULL, 0 <unfinished ...>
[pid  3869] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3868] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3873] pipe2( <unfinished ...>
[pid  3872] write(-1, NULL, 0 <unfinished ...>
[pid  3871] write(-1, NULL, 0 <unfinished ...>
[pid  3870] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3869] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3868] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3873] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3872] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3871] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3870] write(-1, NULL, 0 <unfinished ...>
[pid  3869] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3868] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3873] write(-1, NULL, 0 <unfinished ...>
[pid  3872] write(-1, NULL, 0 <unfinished ...>
[pid  3871] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3870] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3873] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3872] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3870] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3873] write(-1, NULL, 0 <unfinished ...>
[pid  3872] write(-1, NULL, 0 <unfinished ...>
[pid  3871] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3870] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3868] fdatasync(-1 <unfinished ...>
[pid  3873] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3872] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3870] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3873] write(-1, NULL, 0 <unfinished ...>
[pid  3872] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3871] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3868] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3873] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3872] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3873] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3872] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3873] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3873] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3868] exit_group(0)               = ?
[pid  3868] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3868, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3874
[pid  3869] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3870] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3869] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3870] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3869] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3870] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3869] fdatasync(-1 <unfinished ...>
[pid  3870] fdatasync(-1 <unfinished ...>
[pid  3869] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3870] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3869] exit_group(0 <unfinished ...>
[pid  3870] exit_group(0 <unfinished ...>
[pid  3869] <... exit_group resumed>)   = ?
[pid  3870] <... exit_group resumed>)   = ?
./strace-static-x86_64: Process 3874 attached
[pid  3870] +++ exited with 0 +++
[pid  3869] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3869, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3870, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3874] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3620] <... openat resumed>)       = 3
[pid  3619] <... openat resumed>)       = 3
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3620] close(3 <unfinished ...>
[pid  3619] close(3 <unfinished ...>
[pid  3874] <... prctl resumed>)        = 0
[pid  3620] <... close resumed>)        = 0
[pid  3619] <... close resumed>)        = 0
[pid  3874] setpgid(0, 0 <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3874] <... setpgid resumed>)      = 0
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3875
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3876
[pid  3874] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3874] write(3, "1000", 4)         = 4
./strace-static-x86_64: Process 3876 attached
./strace-static-x86_64: Process 3875 attached
[pid  3874] close(3 <unfinished ...>
[pid  3875] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3874] <... close resumed>)        = 0
[pid  3875] <... prctl resumed>)        = 0
[pid  3874] mkdir("./file0", 0777 <unfinished ...>
[pid  3875] setpgid(0, 0 <unfinished ...>
[pid  3874] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3876] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3875] <... setpgid resumed>)      = 0
[pid  3874] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3875] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3874] pipe2( <unfinished ...>
[pid  3876] <... prctl resumed>)        = 0
[pid  3875] <... openat resumed>)       = 3
[pid  3874] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3876] setpgid(0, 0 <unfinished ...>
[pid  3875] write(3, "1000", 4 <unfinished ...>
[pid  3874] write(-1, NULL, 0 <unfinished ...>
[pid  3876] <... setpgid resumed>)      = 0
[pid  3875] <... write resumed>)        = 4
[pid  3874] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3876] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3875] close(3 <unfinished ...>
[pid  3874] write(-1, NULL, 0 <unfinished ...>
[pid  3876] <... openat resumed>)       = 3
[pid  3875] <... close resumed>)        = 0
[pid  3874] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3876] write(3, "1000", 4 <unfinished ...>
[pid  3875] mkdir("./file0", 0777 <unfinished ...>
[pid  3874] write(-1, NULL, 0 <unfinished ...>
[pid  3876] <... write resumed>)        = 4
[pid  3875] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3874] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3876] close(3 <unfinished ...>
[pid  3875] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3874] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3876] <... close resumed>)        = 0
[pid  3875] pipe2( <unfinished ...>
[pid  3874] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3876] mkdir("./file0", 0777 <unfinished ...>
[pid  3875] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3874] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3876] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3875] write(-1, NULL, 0 <unfinished ...>
[pid  3873] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3872] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3871] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3873] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3872] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3871] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3873] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3872] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3871] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3873] fdatasync(-1 <unfinished ...>
[pid  3872] fdatasync(-1 <unfinished ...>
[pid  3871] fdatasync(-1 <unfinished ...>
[pid  3873] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3872] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3871] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3876] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3875] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3873] exit_group(0 <unfinished ...>
[pid  3872] exit_group(0 <unfinished ...>
[pid  3871] exit_group(0 <unfinished ...>
[pid  3876] pipe2( <unfinished ...>
[pid  3875] write(-1, NULL, 0 <unfinished ...>
[pid  3873] <... exit_group resumed>)   = ?
[pid  3872] <... exit_group resumed>)   = ?
[pid  3871] <... exit_group resumed>)   = ?
[pid  3876] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3875] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3874] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3873] +++ exited with 0 +++
[pid  3872] +++ exited with 0 +++
[pid  3871] +++ exited with 0 +++
[pid  3874] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3876] write(-1, NULL, 0 <unfinished ...>
[pid  3875] write(-1, NULL, 0 <unfinished ...>
[pid  3874] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3871, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3873, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3872, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3874] fdatasync(-1 <unfinished ...>
[pid  3618] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3617] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3874] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3876] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3875] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3874] exit_group(0 <unfinished ...>
[pid  3618] <... restart_syscall resumed>) = 0
[pid  3617] <... restart_syscall resumed>) = 0
[pid  3874] <... exit_group resumed>)   = ?
[pid  3876] write(-1, NULL, 0 <unfinished ...>
[pid  3875] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3874] +++ exited with 0 +++
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3876] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3875] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] <... openat resumed>)       = 3
[pid  3617] <... openat resumed>)       = 3
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3874, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3876] write(-1, NULL, 0 <unfinished ...>
[pid  3875] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3876] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3876] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3618] close(3 <unfinished ...>
[pid  3617] close(3 <unfinished ...>
[pid  3876] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... openat resumed>)       = 3
[pid  3618] <... close resumed>)        = 0
[pid  3617] <... close resumed>)        = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3876] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3877
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3878
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3616] <... openat resumed>)       = 3
./strace-static-x86_64: Process 3877 attached
[pid  3622] close(3 <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3877] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3877] setpgid(0, 0)               = 0
[pid  3877] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3622] <... close resumed>)        = 0
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3877] <... openat resumed>)       = 3
[pid  3877] write(3, "1000", 4)         = 4
[pid  3877] close(3)                    = 0
[pid  3877] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3877] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] close(3 <unfinished ...>
[pid  3877] pipe2( <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3879
[pid  3616] <... close resumed>)        = 0
[pid  3877] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3877] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3877] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3877] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3877] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3877] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3880 attached
./strace-static-x86_64: Process 3878 attached
 <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3880
[pid  3880] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3878] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3880] <... prctl resumed>)        = 0
[pid  3878] <... prctl resumed>)        = 0
[pid  3880] setpgid(0, 0 <unfinished ...>
[pid  3878] setpgid(0, 0 <unfinished ...>
[pid  3880] <... setpgid resumed>)      = 0
[pid  3878] <... setpgid resumed>)      = 0
./strace-static-x86_64: Process 3879 attached
[pid  3880] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3879] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3878] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3879] <... prctl resumed>)        = 0
[pid  3879] setpgid(0, 0)               = 0
[pid  3878] <... openat resumed>)       = 3
[pid  3880] <... openat resumed>)       = 3
[pid  3878] write(3, "1000", 4 <unfinished ...>
[pid  3880] write(3, "1000", 4 <unfinished ...>
[pid  3878] <... write resumed>)        = 4
[pid  3880] <... write resumed>)        = 4
[pid  3878] close(3 <unfinished ...>
[pid  3879] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3880] close(3 <unfinished ...>
[pid  3878] <... close resumed>)        = 0
[pid  3880] <... close resumed>)        = 0
[pid  3878] mkdir("./file0", 0777 <unfinished ...>
[pid  3880] mkdir("./file0", 0777 <unfinished ...>
[pid  3878] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3880] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3878] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3880] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3878] pipe2( <unfinished ...>
[pid  3880] pipe2([3, 4], 0)            = 0
[pid  3879] <... openat resumed>)       = 3
[pid  3878] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3880] write(-1, NULL, 0 <unfinished ...>
[pid  3879] write(3, "1000", 4 <unfinished ...>
[pid  3878] write(-1, NULL, 0 <unfinished ...>
[pid  3880] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3879] <... write resumed>)        = 4
[pid  3878] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3880] write(-1, NULL, 0 <unfinished ...>
[pid  3879] close(3 <unfinished ...>
[pid  3878] write(-1, NULL, 0 <unfinished ...>
[pid  3880] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3879] <... close resumed>)        = 0
[pid  3878] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3880] write(-1, NULL, 0 <unfinished ...>
[pid  3879] mkdir("./file0", 0777 <unfinished ...>
[pid  3878] write(-1, NULL, 0 <unfinished ...>
[pid  3880] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3878] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3880] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3878] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3880] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3878] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3879] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3880] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3879] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3878] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3879] pipe2([3, 4], 0)            = 0
[pid  3879] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3879] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3879] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3879] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3879] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3875] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3875] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3875] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3875] exit_group(0)               = ?
[pid  3875] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3875, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3876] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3876] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3620] close(3 <unfinished ...>
[pid  3876] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3620] <... close resumed>)        = 0
[pid  3876] fdatasync(-1 <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3876] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3881
[pid  3876] exit_group(0)               = ?
[pid  3876] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3876, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3882 attached
, child_tidptr=0x555556dbb690) = 3882
[pid  3882] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3882] setpgid(0, 0./strace-static-x86_64: Process 3881 attached
)               = 0
[pid  3877] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3877] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3877] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3877] exit_group(0 <unfinished ...>
[pid  3881] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3877] <... exit_group resumed>)   = ?
[pid  3881] <... prctl resumed>)        = 0
[pid  3877] +++ exited with 0 +++
[pid  3881] setpgid(0, 0 <unfinished ...>
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3877, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3881] <... setpgid resumed>)      = 0
[pid  3881] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3881] write(3, "1000", 4)         = 4
[pid  3881] close(3)                    = 0
[pid  3881] mkdir("./file0", 0777 <unfinished ...>
[pid  3882] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3881] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3880] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3882] <... openat resumed>)       = 3
[pid  3881] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3880] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3879] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3878] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3882] write(3, "1000", 4 <unfinished ...>
[pid  3881] pipe2( <unfinished ...>
[pid  3880] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3879] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3878] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  3882] <... write resumed>)        = 4
[pid  3881] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3880] fdatasync(-1 <unfinished ...>
[pid  3879] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3878] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3881] write(-1, NULL, 0 <unfinished ...>
[pid  3880] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3879] fdatasync(-1 <unfinished ...>
[pid  3878] fdatasync(-1 <unfinished ...>
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3881] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3880] exit_group(0 <unfinished ...>
[pid  3879] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3878] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3618] close(3 <unfinished ...>
[pid  3882] close(3 <unfinished ...>
[pid  3881] write(-1, NULL, 0 <unfinished ...>
[pid  3880] <... exit_group resumed>)   = ?
[pid  3879] exit_group(0 <unfinished ...>
[pid  3878] exit_group(0 <unfinished ...>
[pid  3618] <... close resumed>)        = 0
[pid  3881] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3879] <... exit_group resumed>)   = ?
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3883 attached
 <unfinished ...>
[pid  3882] <... close resumed>)        = 0
[pid  3881] write(-1, NULL, 0 <unfinished ...>
[pid  3880] +++ exited with 0 +++
[pid  3879] +++ exited with 0 +++
[pid  3878] <... exit_group resumed>)   = ?
[pid  3881] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3883
[pid  3881] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3881] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3883] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3882] mkdir("./file0", 0777 <unfinished ...>
[pid  3878] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3879, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3880, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3882] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3878, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3882] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3882] pipe2( <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3883] <... prctl resumed>)        = 0
[pid  3882] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3617] <... openat resumed>)       = 3
[pid  3883] setpgid(0, 0 <unfinished ...>
[pid  3882] write(-1, NULL, 0 <unfinished ...>
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
[pid  3883] <... setpgid resumed>)      = 0
[pid  3882] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3883] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3882] write(-1, NULL, 0 <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3883] <... openat resumed>)       = 3
[pid  3882] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3617] close(3 <unfinished ...>
[pid  3616] close(3 <unfinished ...>
[pid  3883] write(3, "1000", 4 <unfinished ...>
[pid  3882] write(-1, NULL, 0 <unfinished ...>
[pid  3622] <... openat resumed>)       = 3
[pid  3616] <... close resumed>)        = 0
[pid  3883] <... write resumed>)        = 4
[pid  3882] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3883] close(3 <unfinished ...>
[pid  3882] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3883] <... close resumed>)        = 0
[pid  3882] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] close(3 <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3884
[pid  3883] mkdir("./file0", 0777 <unfinished ...>
[pid  3882] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3622] <... close resumed>)        = 0
[pid  3883] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3883] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3883] pipe2( <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3885
[pid  3883] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3883] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
./strace-static-x86_64: Process 3886 attached
./strace-static-x86_64: Process 3885 attached
./strace-static-x86_64: Process 3884 attached
[pid  3883] write(-1, NULL, 0 <unfinished ...>
[pid  3881] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3886
[pid  3883] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3883] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3883] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3883] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3886] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3885] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3884] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3881] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3886] <... prctl resumed>)        = 0
[pid  3885] <... prctl resumed>)        = 0
[pid  3884] <... prctl resumed>)        = 0
[pid  3881] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3886] setpgid(0, 0 <unfinished ...>
[pid  3885] setpgid(0, 0 <unfinished ...>
[pid  3884] setpgid(0, 0 <unfinished ...>
[pid  3881] fdatasync(-1 <unfinished ...>
[pid  3886] <... setpgid resumed>)      = 0
[pid  3885] <... setpgid resumed>)      = 0
[pid  3884] <... setpgid resumed>)      = 0
[pid  3881] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3886] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3881] exit_group(0 <unfinished ...>
[pid  3885] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3884] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3881] <... exit_group resumed>)   = ?
[pid  3886] <... openat resumed>)       = 3
[pid  3885] <... openat resumed>)       = 3
[pid  3881] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3881, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3886] write(3, "1000", 4 <unfinished ...>
[pid  3885] write(3, "1000", 4 <unfinished ...>
[pid  3884] <... openat resumed>)       = 3
[pid  3886] <... write resumed>)        = 4
[pid  3885] <... write resumed>)        = 4
[pid  3884] write(3, "1000", 4 <unfinished ...>
[pid  3886] close(3 <unfinished ...>
[pid  3885] close(3 <unfinished ...>
[pid  3884] <... write resumed>)        = 4
[pid  3886] <... close resumed>)        = 0
[pid  3885] <... close resumed>)        = 0
[pid  3884] close(3 <unfinished ...>
[pid  3886] mkdir("./file0", 0777 <unfinished ...>
[pid  3885] mkdir("./file0", 0777 <unfinished ...>
[pid  3884] <... close resumed>)        = 0
[pid  3886] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3885] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3884] mkdir("./file0", 0777 <unfinished ...>
[pid  3886] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3885] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3884] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3886] pipe2( <unfinished ...>
[pid  3885] pipe2( <unfinished ...>
[pid  3884] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3886] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3885] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3884] pipe2( <unfinished ...>
[pid  3620] <... openat resumed>)       = 3
[pid  3886] write(-1, NULL, 0 <unfinished ...>
[pid  3885] write(-1, NULL, 0 <unfinished ...>
[pid  3884] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3886] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3885] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3884] write(-1, NULL, 0 <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3886] write(-1, NULL, 0 <unfinished ...>
[pid  3885] write(-1, NULL, 0 <unfinished ...>
[pid  3884] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] close(3 <unfinished ...>
[pid  3886] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3885] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3884] write(-1, NULL, 0 <unfinished ...>
[pid  3620] <... close resumed>)        = 0
[pid  3886] write(-1, NULL, 0 <unfinished ...>
[pid  3885] write(-1, NULL, 0 <unfinished ...>
[pid  3884] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3887 attached
 <unfinished ...>
[pid  3886] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3885] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3884] write(-1, NULL, 0 <unfinished ...>
[pid  3887] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3886] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3885] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3884] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3887] <... prctl resumed>)        = 0
[pid  3886] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3885] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3884] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3887] setpgid(0, 0 <unfinished ...>
[pid  3886] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3885] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3884] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3887
[pid  3887] <... setpgid resumed>)      = 0
[pid  3882] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3882] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3882] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3882] exit_group(0)               = ?
[pid  3887] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3884] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3882] +++ exited with 0 +++
[pid  3887] <... openat resumed>)       = 3
[pid  3883] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3882, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3887] write(3, "1000", 4 <unfinished ...>
[pid  3886] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3883] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3886] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3883] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3886] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3883] fdatasync(-1 <unfinished ...>
[pid  3886] fdatasync(-1 <unfinished ...>
[pid  3883] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3619] <... openat resumed>)       = 3
[pid  3886] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3883] exit_group(0 <unfinished ...>
[pid  3886] exit_group(0 <unfinished ...>
[pid  3883] <... exit_group resumed>)   = ?
[pid  3886] <... exit_group resumed>)   = ?
[pid  3883] +++ exited with 0 +++
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3887] <... write resumed>)        = 4
[pid  3886] +++ exited with 0 +++
[pid  3887] close(3 <unfinished ...>
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3886, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3887] <... close resumed>)        = 0
[pid  3619] close(3 <unfinished ...>
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3883, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3887] mkdir("./file0", 0777 <unfinished ...>
[pid  3619] <... close resumed>)        = 0
[pid  3618] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] <... restart_syscall resumed>) = 0
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3887] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3888
[pid  3617] <... openat resumed>)       = 3
[pid  3887] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3887] pipe2( <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3887] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3617] close(3 <unfinished ...>
[pid  3887] write(-1, NULL, 0 <unfinished ...>
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] <... close resumed>)        = 0
[pid  3887] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3884] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3618] close(3 <unfinished ...>
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3887] write(-1, NULL, 0 <unfinished ...>
[pid  3884] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3618] <... close resumed>)        = 0
./strace-static-x86_64: Process 3888 attached
[pid  3887] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3884] fdatasync(-1 <unfinished ...>
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3888] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3884] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3888] <... prctl resumed>)        = 0
[pid  3884] exit_group(0 <unfinished ...>
[pid  3888] setpgid(0, 0 <unfinished ...>
[pid  3884] <... exit_group resumed>)   = ?
[pid  3888] <... setpgid resumed>)      = 0
[pid  3884] +++ exited with 0 +++
[pid  3888] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3887] write(-1, NULL, 0 <unfinished ...>
[pid  3885] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3889
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3884, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3888] <... openat resumed>)       = 3
[pid  3887] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3885] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3890
[pid  3888] write(3, "1000", 4 <unfinished ...>
[pid  3887] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3885] <... openat resumed>)       = -1 EFAULT (Bad address)
./strace-static-x86_64: Process 3890 attached
./strace-static-x86_64: Process 3889 attached
[pid  3888] <... write resumed>)        = 4
[pid  3887] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3885] fdatasync(-1 <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3890] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3889] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3888] close(3 <unfinished ...>
[pid  3887] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3885] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3616] <... openat resumed>)       = 3
[pid  3888] <... close resumed>)        = 0
[pid  3885] exit_group(0 <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3888] mkdir("./file0", 0777 <unfinished ...>
[pid  3885] <... exit_group resumed>)   = ?
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3888] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3885] +++ exited with 0 +++
[pid  3616] close(3 <unfinished ...>
[pid  3888] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3885, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] <... close resumed>)        = 0
[pid  3888] pipe2( <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3888] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3888] write(-1, NULL, 0 <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3891
[pid  3888] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... openat resumed>)       = 3
[pid  3888] write(-1, NULL, 0 <unfinished ...>
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3888] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3888] write(-1, NULL, 0 <unfinished ...>
[pid  3622] close(3 <unfinished ...>
[pid  3888] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... close resumed>)        = 0
[pid  3888] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3888] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3888] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3892
./strace-static-x86_64: Process 3891 attached
[pid  3891] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 3892 attached
 <unfinished ...>
[pid  3892] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3891] <... prctl resumed>)        = 0
[pid  3891] setpgid(0, 0)               = 0
[pid  3891] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3892] <... prctl resumed>)        = 0
[pid  3892] setpgid(0, 0 <unfinished ...>
[pid  3890] <... prctl resumed>)        = 0
[pid  3889] <... prctl resumed>)        = 0
[pid  3892] <... setpgid resumed>)      = 0
[pid  3892] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3890] setpgid(0, 0 <unfinished ...>
[pid  3889] setpgid(0, 0 <unfinished ...>
[pid  3892] <... openat resumed>)       = 3
[pid  3891] <... openat resumed>)       = 3
[pid  3890] <... setpgid resumed>)      = 0
[pid  3889] <... setpgid resumed>)      = 0
[pid  3892] write(3, "1000", 4 <unfinished ...>
[pid  3891] write(3, "1000", 4 <unfinished ...>
[pid  3892] <... write resumed>)        = 4
[pid  3891] <... write resumed>)        = 4
[pid  3890] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3889] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3892] close(3 <unfinished ...>
[pid  3891] close(3 <unfinished ...>
[pid  3890] <... openat resumed>)       = 3
[pid  3889] <... openat resumed>)       = 3
[pid  3890] write(3, "1000", 4)         = 4
[pid  3889] write(3, "1000", 4 <unfinished ...>
[pid  3890] close(3 <unfinished ...>
[pid  3889] <... write resumed>)        = 4
[pid  3890] <... close resumed>)        = 0
[pid  3889] close(3 <unfinished ...>
[pid  3892] <... close resumed>)        = 0
[pid  3891] <... close resumed>)        = 0
[pid  3890] mkdir("./file0", 0777 <unfinished ...>
[pid  3889] <... close resumed>)        = 0
[pid  3892] mkdir("./file0", 0777 <unfinished ...>
[pid  3891] mkdir("./file0", 0777 <unfinished ...>
[pid  3890] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3889] mkdir("./file0", 0777 <unfinished ...>
[pid  3892] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3891] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3890] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3889] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3892] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3891] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3890] pipe2( <unfinished ...>
[pid  3889] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3892] pipe2( <unfinished ...>
[pid  3891] pipe2( <unfinished ...>
[pid  3890] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3889] pipe2( <unfinished ...>
[pid  3892] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3891] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3890] write(-1, NULL, 0 <unfinished ...>
[pid  3889] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3887] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3892] write(-1, NULL, 0 <unfinished ...>
[pid  3891] write(-1, NULL, 0 <unfinished ...>
[pid  3890] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3889] write(-1, NULL, 0 <unfinished ...>
[pid  3887] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3890] write(-1, NULL, 0 <unfinished ...>
[pid  3889] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3887] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3890] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3889] write(-1, NULL, 0 <unfinished ...>
[pid  3887] fdatasync(-1 <unfinished ...>
[pid  3890] write(-1, NULL, 0 <unfinished ...>
[pid  3889] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3887] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3892] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3891] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3890] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3889] write(-1, NULL, 0 <unfinished ...>
[pid  3887] exit_group(0 <unfinished ...>
[pid  3890] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3889] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3887] <... exit_group resumed>)   = ?
[pid  3892] write(-1, NULL, 0 <unfinished ...>
[pid  3891] write(-1, NULL, 0 <unfinished ...>
[pid  3890] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3889] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3887] +++ exited with 0 +++
[pid  3892] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3891] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3890] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3889] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3887, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3892] write(-1, NULL, 0 <unfinished ...>
[pid  3891] write(-1, NULL, 0 <unfinished ...>
[pid  3889] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3888] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3892] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3891] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3892] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3891] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3888] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3892] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3891] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] <... openat resumed>)       = 3
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3891] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3892] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3893
[pid  3888] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3888] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3888] exit_group(0)               = ?
[pid  3888] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3888, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] restart_syscall(<... resuming interrupted clone ...>) = 0
./strace-static-x86_64: Process 3893 attached
[pid  3893] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3893] <... prctl resumed>)        = 0
[pid  3893] setpgid(0, 0 <unfinished ...>
[pid  3619] <... openat resumed>)       = 3
[pid  3893] <... setpgid resumed>)      = 0
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3893] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3894 attached
, child_tidptr=0x555556dbb690) = 3894
[pid  3894] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3893] <... openat resumed>)       = 3
[pid  3893] write(3, "1000", 4)         = 4
[pid  3893] close(3)                    = 0
[pid  3893] mkdir("./file0", 0777 <unfinished ...>
[pid  3894] setpgid(0, 0 <unfinished ...>
[pid  3893] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3893] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3893] pipe2( <unfinished ...>
[pid  3894] <... setpgid resumed>)      = 0
[pid  3893] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3894] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3893] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3894] <... openat resumed>)       = 3
[pid  3893] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3893] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3893] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3893] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3894] write(3, "1000", 4)         = 4
[pid  3894] close(3)                    = 0
[pid  3890] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3890] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3890] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3890] exit_group(0)               = ?
[pid  3890] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3890, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3895
[pid  3894] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3894] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3894] pipe2(./strace-static-x86_64: Process 3895 attached
[3, 4], 0)            = 0
[pid  3894] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3894] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3894] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3894] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3895] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3894] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3895] <... prctl resumed>)        = 0
[pid  3895] setpgid(0, 0)               = 0
[pid  3895] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3895] write(3, "1000", 4)         = 4
[pid  3895] close(3)                    = 0
[pid  3895] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3895] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3889] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3889] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3889] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3889] exit_group(0)               = ?
[pid  3889] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3889, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3896
[pid  3895] pipe2([3, 4], 0)            = 0
[pid  3895] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3891] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3895] write(-1, NULL, 0 <unfinished ...>
[pid  3891] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3895] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3891] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3895] write(-1, NULL, 0 <unfinished ...>
[pid  3893] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3891] fdatasync(-1 <unfinished ...>
[pid  3893] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3891] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3893] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3891] exit_group(0 <unfinished ...>
[pid  3893] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3892] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3893] exit_group(0)               = ?
[pid  3895] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3893] +++ exited with 0 +++
[pid  3892] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3891] <... exit_group resumed>)   = ?
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3893, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3892] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3620] <... openat resumed>)       = 3
[pid  3892] fdatasync(-1 <unfinished ...>
[pid  3891] +++ exited with 0 +++
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3895] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3892] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3891, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
./strace-static-x86_64: Process 3896 attached
[pid  3620] close(3 <unfinished ...>
[pid  3896] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3620] <... close resumed>)        = 0
[pid  3892] exit_group(0 <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3896] <... prctl resumed>)        = 0
[pid  3896] setpgid(0, 0)               = 0
[pid  3896] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 3897 attached
) = 3
[pid  3895] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3892] <... exit_group resumed>)   = ?
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3896] write(3, "1000", 4 <unfinished ...>
[pid  3895] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3892] +++ exited with 0 +++
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3897
[pid  3896] <... write resumed>)        = 4
[pid  3616] <... openat resumed>)       = 3
[pid  3896] close(3 <unfinished ...>
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3892, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3896] <... close resumed>)        = 0
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3896] mkdir("./file0", 0777 <unfinished ...>
[pid  3622] <... openat resumed>)       = 3
[pid  3616] close(3 <unfinished ...>
[pid  3896] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3896] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3616] <... close resumed>)        = 0
[pid  3896] pipe2( <unfinished ...>
[pid  3622] close(3 <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3896] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3622] <... close resumed>)        = 0
[pid  3896] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3896] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3896] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3896] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3896] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3899
[pid  3894] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3898
[pid  3894] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3897] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3894] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3897] <... prctl resumed>)        = 0
[pid  3894] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
./strace-static-x86_64: Process 3898 attached
[pid  3894] exit_group(0 <unfinished ...>
[pid  3898] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3894] <... exit_group resumed>)   = ?
[pid  3897] setpgid(0, 0 <unfinished ...>
[pid  3894] +++ exited with 0 +++
[pid  3898] <... prctl resumed>)        = 0
[pid  3897] <... setpgid resumed>)      = 0
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3894, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3898] setpgid(0, 0 <unfinished ...>
[pid  3897] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3898] <... setpgid resumed>)      = 0
[pid  3898] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3897] <... openat resumed>)       = 3
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3898] <... openat resumed>)       = 3
[pid  3897] write(3, "1000", 4 <unfinished ...>
[pid  3619] <... openat resumed>)       = 3
[pid  3898] write(3, "1000", 4./strace-static-x86_64: Process 3899 attached
)         = 4
[pid  3897] <... write resumed>)        = 4
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3898] close(3 <unfinished ...>
[pid  3897] close(3 <unfinished ...>
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3898] <... close resumed>)        = 0
[pid  3897] <... close resumed>)        = 0
[pid  3619] close(3 <unfinished ...>
[pid  3899] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3898] mkdir("./file0", 0777 <unfinished ...>
[pid  3897] mkdir("./file0", 0777 <unfinished ...>
[pid  3619] <... close resumed>)        = 0
[pid  3899] <... prctl resumed>)        = 0
[pid  3898] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3897] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3898] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3898] pipe2( <unfinished ...>
[pid  3899] setpgid(0, 0 <unfinished ...>
[pid  3898] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3897] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3899] <... setpgid resumed>)      = 0
[pid  3898] write(-1, NULL, 0 <unfinished ...>
[pid  3897] pipe2( <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3900
[pid  3898] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3898] write(-1, NULL, 0 <unfinished ...>
[pid  3897] <... pipe2 resumed>[3, 4], 0) = 0
./strace-static-x86_64: Process 3900 attached
[pid  3899] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3898] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3897] write(-1, NULL, 0 <unfinished ...>
[pid  3898] write(-1, NULL, 0 <unfinished ...>
[pid  3897] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3900] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3899] <... openat resumed>)       = 3
[pid  3898] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3897] write(-1, NULL, 0 <unfinished ...>
[pid  3895] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3900] <... prctl resumed>)        = 0
[pid  3899] write(3, "1000", 4 <unfinished ...>
[pid  3898] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3897] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3895] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3900] setpgid(0, 0 <unfinished ...>
[pid  3899] <... write resumed>)        = 4
[pid  3898] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3897] write(-1, NULL, 0 <unfinished ...>
[pid  3895] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3900] <... setpgid resumed>)      = 0
[pid  3899] close(3 <unfinished ...>
[pid  3898] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3897] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3895] fdatasync(-1 <unfinished ...>
[pid  3900] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3899] <... close resumed>)        = 0
[pid  3897] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3895] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3900] <... openat resumed>)       = 3
[pid  3899] mkdir("./file0", 0777 <unfinished ...>
[pid  3897] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3895] exit_group(0 <unfinished ...>
[pid  3900] write(3, "1000", 4 <unfinished ...>
[pid  3899] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3897] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3895] <... exit_group resumed>)   = ?
[pid  3900] <... write resumed>)        = 4
[pid  3899] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3895] +++ exited with 0 +++
[pid  3900] close(3 <unfinished ...>
[pid  3899] pipe2( <unfinished ...>
[pid  3900] <... close resumed>)        = 0
[pid  3899] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3900] mkdir("./file0", 0777 <unfinished ...>
[pid  3899] write(-1, NULL, 0 <unfinished ...>
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3895, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3900] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3899] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3896] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3900] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3899] write(-1, NULL, 0 <unfinished ...>
[pid  3900] pipe2( <unfinished ...>
[pid  3899] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3900] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3899] write(-1, NULL, 0 <unfinished ...>
[pid  3900] write(-1, NULL, 0 <unfinished ...>
[pid  3899] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] <... restart_syscall resumed>) = 0
[pid  3900] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3899] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3900] write(-1, NULL, 0 <unfinished ...>
[pid  3899] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3900] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3899] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3896] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3900] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3896] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3900] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3896] fdatasync(-1 <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3900] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3896] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3900] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  3896] exit_group(0 <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3896] <... exit_group resumed>)   = ?
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3896] +++ exited with 0 +++
[pid  3618] close(3)                    = 0
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3896, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3901
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3901 attached
 <unfinished ...>
[pid  3901] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3902
[pid  3901] <... prctl resumed>)        = 0
[pid  3901] setpgid(0, 0)               = 0
[pid  3901] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3901] write(3, "1000", 4)         = 4
[pid  3901] close(3)                    = 0
./strace-static-x86_64: Process 3902 attached
[pid  3901] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3902] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3901] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3901] pipe2( <unfinished ...>
[pid  3902] <... prctl resumed>)        = 0
[pid  3901] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3901] write(-1, NULL, 0 <unfinished ...>
[pid  3902] setpgid(0, 0 <unfinished ...>
[pid  3901] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3902] <... setpgid resumed>)      = 0
[pid  3902] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3901] write(-1, NULL, 0 <unfinished ...>
[pid  3902] <... openat resumed>)       = 3
[pid  3901] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3902] write(3, "1000", 4 <unfinished ...>
[pid  3901] write(-1, NULL, 0 <unfinished ...>
[pid  3902] <... write resumed>)        = 4
[pid  3901] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3902] close(3 <unfinished ...>
[pid  3901] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3902] <... close resumed>)        = 0
[pid  3901] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3902] mkdir("./file0", 0777 <unfinished ...>
[pid  3901] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3902] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3902] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3902] pipe2([3, 4], 0)            = 0
[pid  3902] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3902] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3902] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3902] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3902] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3898] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3898] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3898] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3898] exit_group(0 <unfinished ...>
[pid  3899] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3898] <... exit_group resumed>)   = ?
[pid  3899] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3899] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3899] exit_group(0)               = ?
[pid  3899] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3899, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3903
./strace-static-x86_64: Process 3903 attached
[pid  3903] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3898] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3898, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3903] <... prctl resumed>)        = 0
[pid  3903] setpgid(0, 0 <unfinished ...>
[pid  3897] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3897] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3897] fdatasync(-1 <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3904
[pid  3897] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3903] <... setpgid resumed>)      = 0
[pid  3897] exit_group(0 <unfinished ...>
[pid  3903] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3897] <... exit_group resumed>)   = ?
[pid  3903] <... openat resumed>)       = 3
[pid  3903] write(3, "1000", 4)         = 4
[pid  3903] close(3)                    = 0
[pid  3903] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3897] +++ exited with 0 +++
[pid  3903] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3897, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3903] pipe2([3, 4], 0)            = 0
[pid  3902] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3903] write(-1, NULL, 0 <unfinished ...>
[pid  3900] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3903] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] <... openat resumed>)       = 3
[pid  3903] write(-1, NULL, 0 <unfinished ...>
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3903] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3903] write(-1, NULL, 0 <unfinished ...>
[pid  3620] close(3 <unfinished ...>
[pid  3903] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] <... close resumed>)        = 0
./strace-static-x86_64: Process 3904 attached
[pid  3903] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3904] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3903] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3902] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3901] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3900] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3904] <... prctl resumed>)        = 0
[pid  3903] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3902] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3901] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3900] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3905
./strace-static-x86_64: Process 3905 attached
[pid  3904] setpgid(0, 0 <unfinished ...>
[pid  3902] fdatasync(-1 <unfinished ...>
[pid  3901] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3900] fdatasync(-1 <unfinished ...>
[pid  3905] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3904] <... setpgid resumed>)      = 0
[pid  3902] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3901] fdatasync(-1 <unfinished ...>
[pid  3900] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3905] <... prctl resumed>)        = 0
[pid  3904] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3902] exit_group(0 <unfinished ...>
[pid  3901] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3900] exit_group(0 <unfinished ...>
[pid  3905] setpgid(0, 0 <unfinished ...>
[pid  3904] <... openat resumed>)       = 3
[pid  3902] <... exit_group resumed>)   = ?
[pid  3901] exit_group(0 <unfinished ...>
[pid  3900] <... exit_group resumed>)   = ?
[pid  3905] <... setpgid resumed>)      = 0
[pid  3904] write(3, "1000", 4)         = 4
[pid  3904] close(3 <unfinished ...>
[pid  3902] +++ exited with 0 +++
[pid  3901] <... exit_group resumed>)   = ?
[pid  3904] <... close resumed>)        = 0
[pid  3905] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3904] mkdir("./file0", 0777 <unfinished ...>
[pid  3900] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3902, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3905] <... openat resumed>)       = 3
[pid  3904] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3901] +++ exited with 0 +++
[pid  3905] write(3, "1000", 4 <unfinished ...>
[pid  3904] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3900, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3901, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3905] <... write resumed>)        = 4
[pid  3904] pipe2( <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3905] close(3 <unfinished ...>
[pid  3904] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3619] <... openat resumed>)       = 3
[pid  3617] <... openat resumed>)       = 3
[pid  3905] <... close resumed>)        = 0
[pid  3904] write(-1, NULL, 0 <unfinished ...>
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3905] mkdir("./file0", 0777 <unfinished ...>
[pid  3904] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3904] write(-1, NULL, 0 <unfinished ...>
[pid  3619] close(3 <unfinished ...>
[pid  3904] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3619] <... close resumed>)        = 0
[pid  3904] write(-1, NULL, 0 <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3904] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3904] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3906
[pid  3904] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3904] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3905] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
./strace-static-x86_64: Process 3906 attached
[pid  3905] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3617] close(3 <unfinished ...>
[pid  3906] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3905] pipe2( <unfinished ...>
[pid  3903] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3906] <... prctl resumed>)        = 0
[pid  3905] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3903] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3906] setpgid(0, 0 <unfinished ...>
[pid  3905] write(-1, NULL, 0 <unfinished ...>
[pid  3903] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3906] <... setpgid resumed>)      = 0
[pid  3905] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3903] fdatasync(-1 <unfinished ...>
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3907
[pid  3906] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3905] write(-1, NULL, 0 <unfinished ...>
[pid  3903] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3618] close(3 <unfinished ...>
[pid  3906] <... openat resumed>)       = 3
[pid  3905] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3903] exit_group(0 <unfinished ...>
[pid  3618] <... close resumed>)        = 0
[pid  3906] write(3, "1000", 4 <unfinished ...>
[pid  3905] write(-1, NULL, 0 <unfinished ...>
[pid  3903] <... exit_group resumed>)   = ?
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3906] <... write resumed>)        = 4
[pid  3905] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3906] close(3 <unfinished ...>
[pid  3905] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3908
[pid  3906] <... close resumed>)        = 0
[pid  3905] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3903] +++ exited with 0 +++
[pid  3906] mkdir("./file0", 0777 <unfinished ...>
[pid  3905] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3908 attached
./strace-static-x86_64: Process 3907 attached
 <unfinished ...>
[pid  3906] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3904] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3903, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3906] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3904] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3622] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3906] pipe2( <unfinished ...>
[pid  3904] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3622] <... restart_syscall resumed>) = 0
[pid  3906] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3904] fdatasync(-1 <unfinished ...>
[pid  3908] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3907] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3906] write(-1, NULL, 0 <unfinished ...>
[pid  3904] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3906] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3906] write(-1, NULL, 0 <unfinished ...>
[pid  3908] <... prctl resumed>)        = 0
[pid  3907] <... prctl resumed>)        = 0
[pid  3906] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3904] exit_group(0 <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3906] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3906] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3906] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3908] setpgid(0, 0 <unfinished ...>
[pid  3907] setpgid(0, 0 <unfinished ...>
[pid  3904] <... exit_group resumed>)   = ?
[pid  3622] <... openat resumed>)       = 3
[pid  3908] <... setpgid resumed>)      = 0
[pid  3907] <... setpgid resumed>)      = 0
[pid  3904] +++ exited with 0 +++
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3908] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3907] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3622] close(3 <unfinished ...>
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3904, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3908] <... openat resumed>)       = 3
[pid  3907] <... openat resumed>)       = 3
[pid  3622] <... close resumed>)        = 0
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3908] write(3, "1000", 4 <unfinished ...>
[pid  3907] write(3, "1000", 4 <unfinished ...>
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
[pid  3908] <... write resumed>)        = 4
[pid  3907] <... write resumed>)        = 4
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3908] close(3)                    = 0
[pid  3907] close(3 <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3909
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3908] mkdir("./file0", 0777 <unfinished ...>
[pid  3907] <... close resumed>)        = 0
[pid  3616] close(3 <unfinished ...>
[pid  3908] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3907] mkdir("./file0", 0777 <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3908] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3907] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3908] pipe2( <unfinished ...>
[pid  3907] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
./strace-static-x86_64: Process 3910 attached
[pid  3908] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3907] pipe2( <unfinished ...>
[pid  3908] write(-1, NULL, 0 <unfinished ...>
[pid  3907] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3910
./strace-static-x86_64: Process 3909 attached
[pid  3909] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3908] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3907] write(-1, NULL, 0 <unfinished ...>
[pid  3908] write(-1, NULL, 0 <unfinished ...>
[pid  3907] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3908] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3907] write(-1, NULL, 0 <unfinished ...>
[pid  3909] <... prctl resumed>)        = 0
[pid  3908] write(-1, NULL, 0 <unfinished ...>
[pid  3907] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3909] setpgid(0, 0 <unfinished ...>
[pid  3908] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3909] <... setpgid resumed>)      = 0
[pid  3908] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3907] write(-1, NULL, 0 <unfinished ...>
[pid  3909] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3908] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3907] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3910] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3909] <... openat resumed>)       = 3
[pid  3908] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3907] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3910] <... prctl resumed>)        = 0
[pid  3907] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3910] setpgid(0, 0 <unfinished ...>
[pid  3907] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3910] <... setpgid resumed>)      = 0
[pid  3910] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3909] write(3, "1000", 4 <unfinished ...>
[pid  3910] write(3, "1000", 4 <unfinished ...>
[pid  3909] <... write resumed>)        = 4
[pid  3910] <... write resumed>)        = 4
[pid  3909] close(3 <unfinished ...>
[pid  3910] close(3 <unfinished ...>
[pid  3909] <... close resumed>)        = 0
[pid  3910] <... close resumed>)        = 0
[pid  3910] mkdir("./file0", 0777 <unfinished ...>
[pid  3909] mkdir("./file0", 0777 <unfinished ...>
[pid  3910] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3909] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3910] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3909] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3910] pipe2( <unfinished ...>
[pid  3909] pipe2( <unfinished ...>
[pid  3910] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3909] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3910] write(-1, NULL, 0 <unfinished ...>
[pid  3909] write(-1, NULL, 0 <unfinished ...>
[pid  3910] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3910] write(-1, NULL, 0 <unfinished ...>
[pid  3905] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3910] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3909] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3905] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3909] write(-1, NULL, 0 <unfinished ...>
[pid  3905] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3909] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3905] fdatasync(-1 <unfinished ...>
[pid  3909] write(-1, NULL, 0 <unfinished ...>
[pid  3905] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3909] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3905] exit_group(0 <unfinished ...>
[pid  3910] write(-1, NULL, 0 <unfinished ...>
[pid  3909] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3905] <... exit_group resumed>)   = ?
[pid  3909] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3905] +++ exited with 0 +++
[pid  3909] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3905, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3910] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3910] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3910] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3620] <... openat resumed>)       = 3
[pid  3907] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3906] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3911
[pid  3906] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3906] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3908] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3907] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3906] exit_group(0 <unfinished ...>
[pid  3908] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3907] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3906] <... exit_group resumed>)   = ?
./strace-static-x86_64: Process 3911 attached
[pid  3906] +++ exited with 0 +++
[pid  3908] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3907] fdatasync(-1 <unfinished ...>
[pid  3908] fdatasync(-1 <unfinished ...>
[pid  3907] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3906, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3619] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3908] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3619] <... restart_syscall resumed>) = 0
[pid  3907] exit_group(0 <unfinished ...>
[pid  3908] exit_group(0 <unfinished ...>
[pid  3907] <... exit_group resumed>)   = ?
[pid  3908] <... exit_group resumed>)   = ?
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3911] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3619] <... openat resumed>)       = 3
[pid  3911] <... prctl resumed>)        = 0
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3911] setpgid(0, 0 <unfinished ...>
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3911] <... setpgid resumed>)      = 0
[pid  3908] +++ exited with 0 +++
[pid  3619] close(3 <unfinished ...>
[pid  3911] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3619] <... close resumed>)        = 0
[pid  3911] <... openat resumed>)       = 3
[pid  3907] +++ exited with 0 +++
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3908, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3911] write(3, "1000", 4 <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3907, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3911] <... write resumed>)        = 4
[pid  3618] <... openat resumed>)       = 3
[pid  3911] close(3 <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3911] <... close resumed>)        = 0
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3912
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR./strace-static-x86_64: Process 3912 attached
 <unfinished ...>
[pid  3911] mkdir("./file0", 0777 <unfinished ...>
[pid  3618] close(3 <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3911] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3618] <... close resumed>)        = 0
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3911] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
./strace-static-x86_64: Process 3913 attached
[pid  3912] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3911] pipe2( <unfinished ...>
[pid  3617] close(3 <unfinished ...>
[pid  3913] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3912] <... prctl resumed>)        = 0
[pid  3911] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3909] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3913
[pid  3617] <... close resumed>)        = 0
[pid  3911] write(-1, NULL, 0 <unfinished ...>
[pid  3909] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3911] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3909] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3911] write(-1, NULL, 0 <unfinished ...>
[pid  3909] fdatasync(-1 <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3914
[pid  3911] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3909] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
./strace-static-x86_64: Process 3914 attached
[pid  3913] <... prctl resumed>)        = 0
[pid  3912] setpgid(0, 0 <unfinished ...>
[pid  3911] write(-1, NULL, 0 <unfinished ...>
[pid  3910] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3909] exit_group(0 <unfinished ...>
[pid  3911] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3909] <... exit_group resumed>)   = ?
[pid  3914] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3913] setpgid(0, 0 <unfinished ...>
[pid  3912] <... setpgid resumed>)      = 0
[pid  3911] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3910] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3909] +++ exited with 0 +++
[pid  3914] <... prctl resumed>)        = 0
[pid  3913] <... setpgid resumed>)      = 0
[pid  3912] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3911] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3910] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3911] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3914] setpgid(0, 0 <unfinished ...>
[pid  3913] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3912] <... openat resumed>)       = 3
[pid  3910] fdatasync(-1 <unfinished ...>
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3909, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3914] <... setpgid resumed>)      = 0
[pid  3913] <... openat resumed>)       = 3
[pid  3912] write(3, "1000", 4 <unfinished ...>
[pid  3910] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3622] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3914] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3913] write(3, "1000", 4 <unfinished ...>
[pid  3912] <... write resumed>)        = 4
[pid  3910] exit_group(0 <unfinished ...>
[pid  3622] <... restart_syscall resumed>) = 0
[pid  3914] <... openat resumed>)       = 3
[pid  3913] <... write resumed>)        = 4
[pid  3912] close(3 <unfinished ...>
[pid  3910] <... exit_group resumed>)   = ?
[pid  3914] write(3, "1000", 4 <unfinished ...>
[pid  3913] close(3 <unfinished ...>
[pid  3912] <... close resumed>)        = 0
[pid  3910] +++ exited with 0 +++
[pid  3914] <... write resumed>)        = 4
[pid  3913] <... close resumed>)        = 0
[pid  3912] mkdir("./file0", 0777 <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3914] close(3 <unfinished ...>
[pid  3913] mkdir("./file0", 0777 <unfinished ...>
[pid  3912] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3622] <... openat resumed>)       = 3
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3910, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3914] <... close resumed>)        = 0
[pid  3913] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3912] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3914] mkdir("./file0", 0777 <unfinished ...>
[pid  3913] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3912] pipe2( <unfinished ...>
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3616] <... openat resumed>)       = 3
[pid  3914] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3913] pipe2( <unfinished ...>
[pid  3912] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3622] close(3 <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3914] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3913] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3912] write(-1, NULL, 0 <unfinished ...>
[pid  3911] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3622] <... close resumed>)        = 0
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3914] pipe2( <unfinished ...>
[pid  3913] write(-1, NULL, 0 <unfinished ...>
[pid  3912] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3911] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] close(3 <unfinished ...>
[pid  3914] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3913] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3912] write(-1, NULL, 0 <unfinished ...>
[pid  3911] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3616] <... close resumed>)        = 0
[pid  3914] write(-1, NULL, 0 <unfinished ...>
[pid  3913] write(-1, NULL, 0 <unfinished ...>
[pid  3912] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3911] fdatasync(-1 <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3915
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3914] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3913] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3912] write(-1, NULL, 0 <unfinished ...>
[pid  3911] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3914] write(-1, NULL, 0 <unfinished ...>
[pid  3913] write(-1, NULL, 0 <unfinished ...>
[pid  3912] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3911] exit_group(0 <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3916
[pid  3914] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3913] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3912] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3911] <... exit_group resumed>)   = ?
[pid  3914] write(-1, NULL, 0 <unfinished ...>
[pid  3913] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3912] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3914] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3913] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3912] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3916 attached
./strace-static-x86_64: Process 3915 attached
 <unfinished ...>
[pid  3914] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3913] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3911] +++ exited with 0 +++
[pid  3916] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3915] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3914] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3911, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3916] <... prctl resumed>)        = 0
[pid  3915] <... prctl resumed>)        = 0
[pid  3914] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3912] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3916] setpgid(0, 0 <unfinished ...>
[pid  3915] setpgid(0, 0 <unfinished ...>
[pid  3912] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3916] <... setpgid resumed>)      = 0
[pid  3915] <... setpgid resumed>)      = 0
[pid  3912] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3916] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3915] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3913] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3912] fdatasync(-1 <unfinished ...>
[pid  3620] <... openat resumed>)       = 3
[pid  3916] <... openat resumed>)       = 3
[pid  3915] <... openat resumed>)       = 3
[pid  3914] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3913] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3912] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3916] write(3, "1000", 4 <unfinished ...>
[pid  3915] write(3, "1000", 4 <unfinished ...>
[pid  3914] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3913] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3912] exit_group(0 <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3914] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3913] fdatasync(-1 <unfinished ...>
[pid  3912] <... exit_group resumed>)   = ?
[pid  3620] close(3 <unfinished ...>
[pid  3914] fdatasync(-1 <unfinished ...>
[pid  3913] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3912] +++ exited with 0 +++
[pid  3620] <... close resumed>)        = 0
[pid  3914] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3913] exit_group(0 <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3912, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3916] <... write resumed>)        = 4
[pid  3915] <... write resumed>)        = 4
[pid  3914] exit_group(0 <unfinished ...>
[pid  3913] <... exit_group resumed>)   = ?
[pid  3619] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3916] close(3 <unfinished ...>
[pid  3915] close(3 <unfinished ...>
[pid  3914] <... exit_group resumed>)   = ?
[pid  3913] +++ exited with 0 +++
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3917
[pid  3619] <... restart_syscall resumed>) = 0
[pid  3916] <... close resumed>)        = 0
[pid  3915] <... close resumed>)        = 0
[pid  3914] +++ exited with 0 +++
[pid  3916] mkdir("./file0", 0777 <unfinished ...>
[pid  3915] mkdir("./file0", 0777 <unfinished ...>
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3913, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3914, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3916] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3915] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3916] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3915] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3619] <... openat resumed>)       = 3
[pid  3916] pipe2( <unfinished ...>
[pid  3915] pipe2( <unfinished ...>
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  3916] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3915] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3916] write(-1, NULL, 0 <unfinished ...>
[pid  3915] write(-1, NULL, 0 <unfinished ...>
[pid  3619] close(3 <unfinished ...>
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3916] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3915] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3619] <... close resumed>)        = 0
[pid  3916] write(-1, NULL, 0 <unfinished ...>
[pid  3915] write(-1, NULL, 0 <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] close(3 <unfinished ...>
[pid  3916] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3915] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] <... close resumed>)        = 0
./strace-static-x86_64: Process 3917 attached
[pid  3916] write(-1, NULL, 0 <unfinished ...>
[pid  3915] write(-1, NULL, 0 <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3918
[pid  3917] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3916] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3915] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3917] <... prctl resumed>)        = 0
[pid  3916] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3915] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3917] setpgid(0, 0 <unfinished ...>
[pid  3916] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3915] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3917] <... setpgid resumed>)      = 0
[pid  3915] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3917] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3916] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3919
[pid  3917] <... openat resumed>)       = 3
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3917] write(3, "1000", 4)         = 4
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3917] close(3)                    = 0
[pid  3917] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3617] close(3./strace-static-x86_64: Process 3918 attached
 <unfinished ...>
[pid  3917] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3918] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3917] pipe2( <unfinished ...>
[pid  3918] <... prctl resumed>)        = 0
[pid  3917] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3617] <... close resumed>)        = 0
[pid  3918] setpgid(0, 0 <unfinished ...>
[pid  3917] write(-1, NULL, 0 <unfinished ...>
[pid  3918] <... setpgid resumed>)      = 0
[pid  3917] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3918] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3917] write(-1, NULL, 0 <unfinished ...>
[pid  3918] <... openat resumed>)       = 3
[pid  3917] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3918] write(3, "1000", 4 <unfinished ...>
[pid  3917] write(-1, NULL, 0 <unfinished ...>
[pid  3918] <... write resumed>)        = 4
[pid  3917] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3920
[pid  3918] close(3 <unfinished ...>
[pid  3917] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3918] <... close resumed>)        = 0
[pid  3917] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3918] mkdir("./file0", 0777 <unfinished ...>
[pid  3917] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3918] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3918] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3918] pipe2([3, 4], 0)            = 0
[pid  3918] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
./strace-static-x86_64: Process 3920 attached
[pid  3918] write(-1, NULL, 0 <unfinished ...>
[pid  3920] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3918] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3920] <... prctl resumed>)        = 0
[pid  3918] write(-1, NULL, 0 <unfinished ...>
[pid  3920] setpgid(0, 0 <unfinished ...>
[pid  3918] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3920] <... setpgid resumed>)      = 0
[pid  3918] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3920] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3918] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3920] <... openat resumed>)       = 3
[pid  3918] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3920] write(3, "1000", 4)         = 4
[pid  3920] close(3)                    = 0
[pid  3920] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3920] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3920] pipe2([3, 4], 0)            = 0
[pid  3920] write(-1, NULL, 0./strace-static-x86_64: Process 3919 attached
)          = -1 EBADF (Bad file descriptor)
[pid  3915] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3920] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3920] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3920] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3920] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3915] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3919] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3916] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3915] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3919] <... prctl resumed>)        = 0
[pid  3917] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3916] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3915] fdatasync(-1 <unfinished ...>
[pid  3919] setpgid(0, 0 <unfinished ...>
[pid  3917] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3916] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3915] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3919] <... setpgid resumed>)      = 0
[pid  3915] exit_group(0 <unfinished ...>
[pid  3916] fdatasync(-1 <unfinished ...>
[pid  3919] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3917] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3916] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3915] <... exit_group resumed>)   = ?
[pid  3919] <... openat resumed>)       = 3
[pid  3918] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3917] fdatasync(-1 <unfinished ...>
[pid  3916] exit_group(0 <unfinished ...>
[pid  3915] +++ exited with 0 +++
[pid  3919] write(3, "1000", 4 <unfinished ...>
[pid  3918] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3917] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3916] <... exit_group resumed>)   = ?
[pid  3919] <... write resumed>)        = 4
[pid  3918] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3917] exit_group(0 <unfinished ...>
[pid  3916] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3915, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3919] close(3 <unfinished ...>
[pid  3918] fdatasync(-1 <unfinished ...>
[pid  3917] <... exit_group resumed>)   = ?
[pid  3622] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3916, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3919] <... close resumed>)        = 0
[pid  3622] <... restart_syscall resumed>) = 0
[pid  3919] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3919] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3919] pipe2( <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3919] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3918] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3917] +++ exited with 0 +++
[pid  3919] write(-1, NULL, 0 <unfinished ...>
[pid  3622] <... openat resumed>)       = 3
[pid  3616] <... openat resumed>)       = 3
[pid  3919] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3917, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3919] write(-1, NULL, 0 <unfinished ...>
[pid  3918] exit_group(0 <unfinished ...>
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3620] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3919] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3918] <... exit_group resumed>)   = ?
[pid  3622] close(3 <unfinished ...>
[pid  3620] <... restart_syscall resumed>) = 0
[pid  3919] write(-1, NULL, 0 <unfinished ...>
[pid  3918] +++ exited with 0 +++
[pid  3622] <... close resumed>)        = 0
[pid  3616] close(3 <unfinished ...>
[pid  3919] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3918, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] <... close resumed>)        = 0
[pid  3919] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3922 attached
 <unfinished ...>
[pid  3919] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3921
[pid  3620] <... openat resumed>)       = 3
[pid  3922] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3919] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3922
[pid  3922] <... prctl resumed>)        = 0
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3922] setpgid(0, 0 <unfinished ...>
[pid  3920] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] close(3 <unfinished ...>
[pid  3920] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3620] <... close resumed>)        = 0
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3920] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3619] <... openat resumed>)       = 3
[pid  3920] fdatasync(-1 <unfinished ...>
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3920] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3923
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3920] exit_group(0 <unfinished ...>
[pid  3619] close(3 <unfinished ...>
[pid  3920] <... exit_group resumed>)   = ?
[pid  3619] <... close resumed>)        = 0
[pid  3920] +++ exited with 0 +++
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3921 attached
 <unfinished ...>
[pid  3921] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3924
[pid  3921] <... prctl resumed>)        = 0
[pid  3921] setpgid(0, 0)               = 0
[pid  3921] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3921] write(3, "1000", 4)         = 4
./strace-static-x86_64: Process 3923 attached
[pid  3921] close(3 <unfinished ...>
[pid  3923] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3921] <... close resumed>)        = 0
[pid  3923] <... prctl resumed>)        = 0
[pid  3921] mkdir("./file0", 0777 <unfinished ...>
[pid  3923] setpgid(0, 0 <unfinished ...>
[pid  3921] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3923] <... setpgid resumed>)      = 0
[pid  3921] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3923] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3921] pipe2( <unfinished ...>
[pid  3923] <... openat resumed>)       = 3
[pid  3921] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3923] write(3, "1000", 4 <unfinished ...>
[pid  3921] write(-1, NULL, 0 <unfinished ...>
[pid  3923] <... write resumed>)        = 4
[pid  3921] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3923] close(3 <unfinished ...>
[pid  3921] write(-1, NULL, 0 <unfinished ...>
[pid  3923] <... close resumed>)        = 0
[pid  3921] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3923] mkdir("./file0", 0777 <unfinished ...>
[pid  3922] <... setpgid resumed>)      = 0
[pid  3921] write(-1, NULL, 0./strace-static-x86_64: Process 3924 attached
 <unfinished ...>
[pid  3923] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3922] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3921] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3920, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3924] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3923] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3922] <... openat resumed>)       = 3
[pid  3921] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3617] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3924] <... prctl resumed>)        = 0
[pid  3923] pipe2( <unfinished ...>
[pid  3922] write(3, "1000", 4 <unfinished ...>
[pid  3921] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] <... restart_syscall resumed>) = 0
[pid  3924] setpgid(0, 0 <unfinished ...>
[pid  3923] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3922] <... write resumed>)        = 4
[pid  3921] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3924] <... setpgid resumed>)      = 0
[pid  3923] write(-1, NULL, 0 <unfinished ...>
[pid  3922] close(3 <unfinished ...>
[pid  3924] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3923] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3922] <... close resumed>)        = 0
[pid  3924] <... openat resumed>)       = 3
[pid  3923] write(-1, NULL, 0 <unfinished ...>
[pid  3922] mkdir("./file0", 0777 <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3924] write(3, "1000", 4 <unfinished ...>
[pid  3923] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3922] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3617] <... openat resumed>)       = 3
[pid  3924] <... write resumed>)        = 4
[pid  3923] write(-1, NULL, 0 <unfinished ...>
[pid  3922] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3924] close(3 <unfinished ...>
[pid  3923] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3922] pipe2( <unfinished ...>
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3924] <... close resumed>)        = 0
[pid  3923] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3922] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3924] mkdir("./file0", 0777 <unfinished ...>
[pid  3923] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3924] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3923] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3922] write(-1, NULL, 0 <unfinished ...>
[pid  3617] close(3 <unfinished ...>
[pid  3924] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3922] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3919] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3617] <... close resumed>)        = 0
[pid  3922] write(-1, NULL, 0 <unfinished ...>
[pid  3919] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3922] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3919] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3924] pipe2( <unfinished ...>
[pid  3922] write(-1, NULL, 0 <unfinished ...>
[pid  3919] fdatasync(-1 <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3925
./strace-static-x86_64: Process 3925 attached
[pid  3924] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3922] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3919] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3925] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3924] write(-1, NULL, 0 <unfinished ...>
[pid  3922] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3919] exit_group(0 <unfinished ...>
[pid  3925] <... prctl resumed>)        = 0
[pid  3924] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3922] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3919] <... exit_group resumed>)   = ?
[pid  3924] write(-1, NULL, 0 <unfinished ...>
[pid  3922] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3919] +++ exited with 0 +++
[pid  3925] setpgid(0, 0 <unfinished ...>
[pid  3924] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3919, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3925] <... setpgid resumed>)      = 0
[pid  3924] write(-1, NULL, 0 <unfinished ...>
[pid  3925] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3924] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3925] <... openat resumed>)       = 3
[pid  3924] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3925] write(3, "1000", 4 <unfinished ...>
[pid  3924] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] <... openat resumed>)       = 3
[pid  3925] <... write resumed>)        = 4
[pid  3924] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3925] close(3 <unfinished ...>
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3925] <... close resumed>)        = 0
[pid  3618] close(3 <unfinished ...>
[pid  3925] mkdir("./file0", 0777 <unfinished ...>
[pid  3618] <... close resumed>)        = 0
[pid  3925] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3926 attached
 <unfinished ...>
[pid  3925] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3925] pipe2( <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3926
[pid  3926] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3925] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3926] <... prctl resumed>)        = 0
[pid  3925] write(-1, NULL, 0 <unfinished ...>
[pid  3926] setpgid(0, 0 <unfinished ...>
[pid  3925] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3926] <... setpgid resumed>)      = 0
[pid  3925] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3926] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3925] write(-1, NULL, 0 <unfinished ...>
[pid  3926] <... openat resumed>)       = 3
[pid  3925] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3926] write(3, "1000", 4 <unfinished ...>
[pid  3925] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3926] <... write resumed>)        = 4
[pid  3925] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3926] close(3 <unfinished ...>
[pid  3925] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3926] <... close resumed>)        = 0
[pid  3926] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3926] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3926] pipe2([3, 4], 0)            = 0
[pid  3926] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3926] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3921] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3921] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3923] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3921] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3923] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3921] fdatasync(-1 <unfinished ...>
[pid  3923] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3921] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3923] fdatasync(-1 <unfinished ...>
[pid  3921] exit_group(0 <unfinished ...>
[pid  3926] write(-1, NULL, 0 <unfinished ...>
[pid  3923] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3921] <... exit_group resumed>)   = ?
[pid  3926] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3923] exit_group(0 <unfinished ...>
[pid  3921] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3921, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3926] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3923] <... exit_group resumed>)   = ?
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3926] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... openat resumed>)       = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3 <unfinished ...>
[pid  3923] +++ exited with 0 +++
[pid  3622] <... close resumed>)        = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3923, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3927
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR./strace-static-x86_64: Process 3927 attached
 <unfinished ...>
[pid  3926] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3620] <... openat resumed>)       = 3
[pid  3927] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3922] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3922] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3922] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3927] <... prctl resumed>)        = 0
[pid  3922] exit_group(0 <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3924] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3922] <... exit_group resumed>)   = ?
[pid  3620] close(3 <unfinished ...>
[pid  3927] setpgid(0, 0 <unfinished ...>
[pid  3924] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3922] +++ exited with 0 +++
[pid  3924] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3620] <... close resumed>)        = 0
[pid  3924] fdatasync(-1 <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3922, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3924] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3616] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3924] exit_group(0 <unfinished ...>
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3928
[pid  3616] <... restart_syscall resumed>) = 0
[pid  3924] <... exit_group resumed>)   = ?
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3924] +++ exited with 0 +++
[pid  3616] close(3 <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3924, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] <... close resumed>)        = 0
[pid  3925] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3619] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3925] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3619] <... restart_syscall resumed>) = 0
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3929
[pid  3925] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3925] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3619] <... openat resumed>)       = 3
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3925] exit_group(0)               = ?
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3930
[pid  3925] +++ exited with 0 +++
[pid  3927] <... setpgid resumed>)      = 0
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3925, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3927] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3927] write(3, "1000", 4 <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3927] <... write resumed>)        = 4
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3927] close(3 <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] close(3./strace-static-x86_64: Process 3930 attached
./strace-static-x86_64: Process 3928 attached
 <unfinished ...>
[pid  3927] <... close resumed>)        = 0
[pid  3617] <... close resumed>)        = 0
[pid  3930] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3928] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3927] mkdir("./file0", 0777 <unfinished ...>
[pid  3926] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3930] <... prctl resumed>)        = 0
[pid  3928] <... prctl resumed>)        = 0
[pid  3927] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3926] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3930] setpgid(0, 0 <unfinished ...>
[pid  3928] setpgid(0, 0 <unfinished ...>
[pid  3927] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3926] <... openat resumed>)       = -1 EFAULT (Bad address)
./strace-static-x86_64: Process 3929 attached
[pid  3930] <... setpgid resumed>)      = 0
[pid  3928] <... setpgid resumed>)      = 0
[pid  3927] pipe2( <unfinished ...>
[pid  3926] fdatasync(-1 <unfinished ...>
[pid  3930] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3929] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3928] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3927] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3926] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3931
[pid  3930] <... openat resumed>)       = 3
[pid  3929] <... prctl resumed>)        = 0
[pid  3928] <... openat resumed>)       = 3
[pid  3927] write(-1, NULL, 0 <unfinished ...>
[pid  3926] exit_group(0 <unfinished ...>
[pid  3930] write(3, "1000", 4 <unfinished ...>
[pid  3929] setpgid(0, 0 <unfinished ...>
[pid  3928] write(3, "1000", 4 <unfinished ...>
[pid  3927] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3926] <... exit_group resumed>)   = ?
[pid  3930] <... write resumed>)        = 4
[pid  3929] <... setpgid resumed>)      = 0
[pid  3928] <... write resumed>)        = 4
[pid  3927] write(-1, NULL, 0 <unfinished ...>
[pid  3926] +++ exited with 0 +++
[pid  3930] close(3 <unfinished ...>
[pid  3929] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3928] close(3 <unfinished ...>
[pid  3927] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3930] <... close resumed>)        = 0
[pid  3929] <... openat resumed>)       = 3
[pid  3928] <... close resumed>)        = 0
[pid  3927] write(-1, NULL, 0 <unfinished ...>
[pid  3930] mkdir("./file0", 0777 <unfinished ...>
[pid  3929] write(3, "1000", 4 <unfinished ...>
[pid  3928] mkdir("./file0", 0777 <unfinished ...>
[pid  3927] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3926, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3930] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3929] <... write resumed>)        = 4
[pid  3928] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3927] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3930] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3929] close(3 <unfinished ...>
[pid  3928] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3927] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3930] pipe2( <unfinished ...>
[pid  3929] <... close resumed>)        = 0
[pid  3928] pipe2( <unfinished ...>
[pid  3927] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  3930] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3929] mkdir("./file0", 0777 <unfinished ...>
[pid  3928] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3931 attached
 <unfinished ...>
[pid  3930] write(-1, NULL, 0 <unfinished ...>
[pid  3929] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3928] write(-1, NULL, 0 <unfinished ...>
[pid  3930] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3929] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3928] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3930] write(-1, NULL, 0 <unfinished ...>
[pid  3929] pipe2( <unfinished ...>
[pid  3928] write(-1, NULL, 0 <unfinished ...>
[pid  3618] close(3 <unfinished ...>
[pid  3930] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3929] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3928] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] <... close resumed>)        = 0
[pid  3930] write(-1, NULL, 0 <unfinished ...>
[pid  3929] write(-1, NULL, 0 <unfinished ...>
[pid  3928] write(-1, NULL, 0 <unfinished ...>
[pid  3930] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3929] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3928] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3930] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3929] write(-1, NULL, 0 <unfinished ...>
[pid  3928] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3930] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3929] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3928] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3930] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3929] write(-1, NULL, 0 <unfinished ...>
[pid  3928] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3932 attached
 <unfinished ...>
[pid  3931] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3929] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3932
[pid  3929] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3929] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3932] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3931] <... prctl resumed>)        = 0
[pid  3932] <... prctl resumed>)        = 0
[pid  3931] setpgid(0, 0 <unfinished ...>
[pid  3932] setpgid(0, 0)               = 0
[pid  3931] <... setpgid resumed>)      = 0
[pid  3931] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3932] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3931] <... openat resumed>)       = 3
[pid  3932] <... openat resumed>)       = 3
[pid  3931] write(3, "1000", 4)         = 4
[pid  3932] write(3, "1000", 4 <unfinished ...>
[pid  3931] close(3 <unfinished ...>
[pid  3932] <... write resumed>)        = 4
[pid  3932] close(3 <unfinished ...>
[pid  3931] <... close resumed>)        = 0
[pid  3932] <... close resumed>)        = 0
[pid  3931] mkdir("./file0", 0777 <unfinished ...>
[pid  3932] mkdir("./file0", 0777 <unfinished ...>
[pid  3931] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3932] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3931] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3932] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3932] pipe2( <unfinished ...>
[pid  3931] pipe2( <unfinished ...>
[pid  3932] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3931] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3932] write(-1, NULL, 0 <unfinished ...>
[pid  3931] write(-1, NULL, 0 <unfinished ...>
[pid  3932] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3931] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3932] write(-1, NULL, 0 <unfinished ...>
[pid  3931] write(-1, NULL, 0 <unfinished ...>
[pid  3932] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3931] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3932] write(-1, NULL, 0 <unfinished ...>
[pid  3931] write(-1, NULL, 0 <unfinished ...>
[pid  3932] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3931] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3932] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3931] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3932] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3931] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3932] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3931] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3927] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3930] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3929] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3927] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3930] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3929] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3927] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3930] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3929] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3927] fdatasync(-1 <unfinished ...>
[pid  3930] fdatasync(-1 <unfinished ...>
[pid  3929] fdatasync(-1 <unfinished ...>
[pid  3927] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3930] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3929] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3927] exit_group(0 <unfinished ...>
[pid  3930] exit_group(0 <unfinished ...>
[pid  3929] exit_group(0 <unfinished ...>
[pid  3927] <... exit_group resumed>)   = ?
[pid  3930] <... exit_group resumed>)   = ?
[pid  3929] <... exit_group resumed>)   = ?
[pid  3927] +++ exited with 0 +++
[pid  3930] +++ exited with 0 +++
[pid  3929] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3927, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3930, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3929, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3619] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3616] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3622] <... openat resumed>)       = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] <... restart_syscall resumed>) = 0
[pid  3616] <... restart_syscall resumed>) = 0
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3619] <... openat resumed>)       = 3
[pid  3616] <... openat resumed>)       = 3
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3933
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3619] close(3 <unfinished ...>
[pid  3616] close(3 <unfinished ...>
[pid  3619] <... close resumed>)        = 0
[pid  3616] <... close resumed>)        = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3934
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3935
./strace-static-x86_64: Process 3934 attached
./strace-static-x86_64: Process 3935 attached
[pid  3934] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3935] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3934] <... prctl resumed>)        = 0
[pid  3934] setpgid(0, 0)               = 0
[pid  3935] <... prctl resumed>)        = 0
[pid  3935] setpgid(0, 0)               = 0
[pid  3934] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3931] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3935] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3931] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3935] <... openat resumed>)       = 3
[pid  3928] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3934] <... openat resumed>)       = 3
[pid  3928] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3935] write(3, "1000", 4 <unfinished ...>
[pid  3928] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3935] <... write resumed>)        = 4
[pid  3934] write(3, "1000", 4 <unfinished ...>
[pid  3928] fdatasync(-1 <unfinished ...>
[pid  3935] close(3 <unfinished ...>
[pid  3934] <... write resumed>)        = 4
[pid  3935] <... close resumed>)        = 0
[pid  3934] close(3 <unfinished ...>
[pid  3928] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
./strace-static-x86_64: Process 3933 attached
[pid  3935] mkdir("./file0", 0777 <unfinished ...>
[pid  3934] <... close resumed>)        = 0
[pid  3935] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3934] mkdir("./file0", 0777 <unfinished ...>
[pid  3933] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3928] exit_group(0 <unfinished ...>
[pid  3935] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3934] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3933] <... prctl resumed>)        = 0
[pid  3928] <... exit_group resumed>)   = ?
[pid  3935] pipe2( <unfinished ...>
[pid  3934] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3933] setpgid(0, 0 <unfinished ...>
[pid  3931] fdatasync(-1 <unfinished ...>
[pid  3935] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3934] pipe2( <unfinished ...>
[pid  3933] <... setpgid resumed>)      = 0
[pid  3935] write(-1, NULL, 0 <unfinished ...>
[pid  3934] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3933] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3935] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3934] write(-1, NULL, 0 <unfinished ...>
[pid  3933] <... openat resumed>)       = 3
[pid  3931] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3928] +++ exited with 0 +++
[pid  3935] write(-1, NULL, 0 <unfinished ...>
[pid  3934] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3933] write(3, "1000", 4 <unfinished ...>
[pid  3935] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3934] write(-1, NULL, 0 <unfinished ...>
[pid  3933] <... write resumed>)        = 4
[pid  3931] exit_group(0 <unfinished ...>
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3928, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3935] write(-1, NULL, 0 <unfinished ...>
[pid  3934] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3933] close(3 <unfinished ...>
[pid  3931] <... exit_group resumed>)   = ?
[pid  3620] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3935] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3934] write(-1, NULL, 0 <unfinished ...>
[pid  3933] <... close resumed>)        = 0
[pid  3620] <... restart_syscall resumed>) = 0
[pid  3935] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3934] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3933] mkdir("./file0", 0777 <unfinished ...>
[pid  3935] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3934] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3933] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3935] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3934] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3933] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3934] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3933] pipe2( <unfinished ...>
[pid  3931] +++ exited with 0 +++
[pid  3620] <... openat resumed>)       = 3
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3931, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3933] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3932] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3933] write(-1, NULL, 0 <unfinished ...>
[pid  3932] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3933] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3932] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3620] close(3 <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3933] write(-1, NULL, 0 <unfinished ...>
[pid  3932] fdatasync(-1 <unfinished ...>
[pid  3620] <... close resumed>)        = 0
[pid  3617] <... openat resumed>)       = 3
[pid  3933] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3932] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3933] write(-1, NULL, 0 <unfinished ...>
[pid  3932] exit_group(0 <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3933] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3932] <... exit_group resumed>)   = ?
[pid  3617] close(3 <unfinished ...>
[pid  3933] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3932] +++ exited with 0 +++
[pid  3617] <... close resumed>)        = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3932, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3937
[pid  3618] <... restart_syscall resumed>) = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 3938
./strace-static-x86_64: Process 3936 attached
[pid  3936] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3933] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3936
[pid  3933] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3936] <... prctl resumed>)        = 0
[pid  3936] setpgid(0, 0)               = 0
[pid  3936] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3936] write(3, "1000", 4)         = 4
[pid  3936] close(3./strace-static-x86_64: Process 3937 attached
)                    = 0
[pid  3934] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3937] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3936] mkdir("./file0", 0777 <unfinished ...>
[pid  3937] <... prctl resumed>)        = 0
[pid  3936] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3937] setpgid(0, 0 <unfinished ...>
[pid  3936] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3935] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3934] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3937] <... setpgid resumed>)      = 0
[pid  3936] pipe2( <unfinished ...>
[pid  3937] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3936] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3935] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3934] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3937] <... openat resumed>)       = 3
[pid  3936] write(-1, NULL, 0 <unfinished ...>
[pid  3937] write(3, "1000", 4 <unfinished ...>
[pid  3936] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3935] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3934] fdatasync(-1 <unfinished ...>
[pid  3937] <... write resumed>)        = 4
[pid  3936] write(-1, NULL, 0 <unfinished ...>
[pid  3935] fdatasync(-1 <unfinished ...>
[pid  3934] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3937] close(3 <unfinished ...>
[pid  3936] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3935] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3934] exit_group(0 <unfinished ...>
[pid  3937] <... close resumed>)        = 0
[pid  3936] write(-1, NULL, 0 <unfinished ...>
[pid  3935] exit_group(0 <unfinished ...>
[pid  3934] <... exit_group resumed>)   = ?
./strace-static-x86_64: Process 3938 attached
[pid  3937] mkdir("./file0", 0777 <unfinished ...>
[pid  3936] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3935] <... exit_group resumed>)   = ?
[pid  3933] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3937] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3936] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3934] +++ exited with 0 +++
[pid  3937] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3936] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3935] +++ exited with 0 +++
[pid  3938] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3937] pipe2( <unfinished ...>
[pid  3936] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3933] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3934, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3938] <... prctl resumed>)        = 0
[pid  3937] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3933] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3619] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3938] setpgid(0, 0 <unfinished ...>
[pid  3937] write(-1, NULL, 0 <unfinished ...>
[pid  3933] fdatasync(-1 <unfinished ...>
[pid  3619] <... restart_syscall resumed>) = 0
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3935, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3938] <... setpgid resumed>)      = 0
[pid  3937] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3933] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3938] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3937] write(-1, NULL, 0 <unfinished ...>
[pid  3933] exit_group(0 <unfinished ...>
[pid  3938] <... openat resumed>)       = 3
[pid  3937] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3933] <... exit_group resumed>)   = ?
[pid  3616] <... openat resumed>)       = 3
[pid  3938] write(3, "1000", 4 <unfinished ...>
[pid  3937] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3937] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3938] <... write resumed>)        = 4
[pid  3937] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3933] +++ exited with 0 +++
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3938] close(3 <unfinished ...>
[pid  3937] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3933, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] <... openat resumed>)       = 3
[pid  3938] <... close resumed>)        = 0
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3938] mkdir("./file0", 0777 <unfinished ...>
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3938] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3619] close(3 <unfinished ...>
[pid  3616] close(3 <unfinished ...>
[pid  3938] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3622] <... openat resumed>)       = 3
[pid  3619] <... close resumed>)        = 0
[pid  3616] <... close resumed>)        = 0
[pid  3938] pipe2( <unfinished ...>
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3938] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3622] close(3 <unfinished ...>
[pid  3938] write(-1, NULL, 0 <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3939
./strace-static-x86_64: Process 3940 attached
./strace-static-x86_64: Process 3939 attached
[pid  3938] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... close resumed>)        = 0
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3940
[pid  3940] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3938] write(-1, NULL, 0 <unfinished ...>
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3941 attached
 <unfinished ...>
[pid  3940] <... prctl resumed>)        = 0
[pid  3939] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3938] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3941] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3940] setpgid(0, 0 <unfinished ...>
[pid  3939] <... prctl resumed>)        = 0
[pid  3938] write(-1, NULL, 0 <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3941
[pid  3941] <... prctl resumed>)        = 0
[pid  3940] <... setpgid resumed>)      = 0
[pid  3939] setpgid(0, 0 <unfinished ...>
[pid  3938] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3941] setpgid(0, 0 <unfinished ...>
[pid  3940] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3939] <... setpgid resumed>)      = 0
[pid  3938] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3941] <... setpgid resumed>)      = 0
[pid  3940] <... openat resumed>)       = 3
[pid  3939] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3938] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3936] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3941] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3940] write(3, "1000", 4 <unfinished ...>
[pid  3939] <... openat resumed>)       = 3
[pid  3938] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3941] <... openat resumed>)       = 3
[pid  3940] <... write resumed>)        = 4
[pid  3939] write(3, "1000", 4 <unfinished ...>
[pid  3936] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3941] write(3, "1000", 4 <unfinished ...>
[pid  3940] close(3 <unfinished ...>
[pid  3939] <... write resumed>)        = 4
[pid  3936] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3941] <... write resumed>)        = 4
[pid  3940] <... close resumed>)        = 0
[pid  3939] close(3 <unfinished ...>
[pid  3936] fdatasync(-1 <unfinished ...>
[pid  3941] close(3 <unfinished ...>
[pid  3940] mkdir("./file0", 0777 <unfinished ...>
[pid  3939] <... close resumed>)        = 0
[pid  3937] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3941] <... close resumed>)        = 0
[pid  3940] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3939] mkdir("./file0", 0777 <unfinished ...>
[pid  3936] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3941] mkdir("./file0", 0777 <unfinished ...>
[pid  3940] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3939] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3941] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3940] pipe2( <unfinished ...>
[pid  3939] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3936] exit_group(0 <unfinished ...>
[pid  3941] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3940] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3939] pipe2( <unfinished ...>
[pid  3936] <... exit_group resumed>)   = ?
[pid  3941] pipe2( <unfinished ...>
[pid  3940] write(-1, NULL, 0 <unfinished ...>
[pid  3939] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3941] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3940] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3939] write(-1, NULL, 0 <unfinished ...>
[pid  3941] write(-1, NULL, 0 <unfinished ...>
[pid  3940] write(-1, NULL, 0 <unfinished ...>
[pid  3939] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3941] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3940] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3939] write(-1, NULL, 0 <unfinished ...>
[pid  3937] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3936] +++ exited with 0 +++
[pid  3941] write(-1, NULL, 0 <unfinished ...>
[pid  3940] write(-1, NULL, 0 <unfinished ...>
[pid  3939] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3938] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3936, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3941] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3940] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3939] write(-1, NULL, 0 <unfinished ...>
[pid  3937] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3938] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3620] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3941] write(-1, NULL, 0 <unfinished ...>
[pid  3940] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3939] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3937] fdatasync(-1 <unfinished ...>
[pid  3620] <... restart_syscall resumed>) = 0
[pid  3938] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3941] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3940] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3939] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3937] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3941] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3940] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3939] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3937] exit_group(0 <unfinished ...>
[pid  3938] fdatasync(-1 <unfinished ...>
[pid  3941] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3939] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3938] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3937] <... exit_group resumed>)   = ?
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3941] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3938] exit_group(0 <unfinished ...>
[pid  3937] +++ exited with 0 +++
[pid  3620] <... openat resumed>)       = 3
[pid  3938] <... exit_group resumed>)   = ?
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3937, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3938] +++ exited with 0 +++
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3938, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
./strace-static-x86_64: Process 3942 attached
[pid  3618] <... openat resumed>)       = 3
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3942] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3942
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3942] <... prctl resumed>)        = 0
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] close(3 <unfinished ...>
[pid  3942] setpgid(0, 0 <unfinished ...>
[pid  3618] close(3 <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3942] <... setpgid resumed>)      = 0
[pid  3618] <... close resumed>)        = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3943 attached
 <unfinished ...>
[pid  3942] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3944 attached
 <unfinished ...>
[pid  3943] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3942] <... openat resumed>)       = 3
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3943
[pid  3944] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3943] <... prctl resumed>)        = 0
[pid  3942] write(3, "1000", 4 <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3944
[pid  3944] <... prctl resumed>)        = 0
[pid  3943] setpgid(0, 0 <unfinished ...>
[pid  3942] <... write resumed>)        = 4
[pid  3944] setpgid(0, 0 <unfinished ...>
[pid  3943] <... setpgid resumed>)      = 0
[pid  3942] close(3 <unfinished ...>
[pid  3944] <... setpgid resumed>)      = 0
[pid  3943] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3942] <... close resumed>)        = 0
[pid  3944] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3942] mkdir("./file0", 0777 <unfinished ...>
[pid  3944] <... openat resumed>)       = 3
[pid  3943] <... openat resumed>)       = 3
[pid  3942] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3944] write(3, "1000", 4 <unfinished ...>
[pid  3943] write(3, "1000", 4 <unfinished ...>
[pid  3942] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3944] <... write resumed>)        = 4
[pid  3943] <... write resumed>)        = 4
[pid  3942] pipe2( <unfinished ...>
[pid  3944] close(3 <unfinished ...>
[pid  3943] close(3 <unfinished ...>
[pid  3942] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3944] <... close resumed>)        = 0
[pid  3943] <... close resumed>)        = 0
[pid  3942] write(-1, NULL, 0 <unfinished ...>
[pid  3944] mkdir("./file0", 0777 <unfinished ...>
[pid  3943] mkdir("./file0", 0777 <unfinished ...>
[pid  3942] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3943] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3942] write(-1, NULL, 0 <unfinished ...>
[pid  3944] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3944] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3943] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3942] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3944] pipe2( <unfinished ...>
[pid  3943] pipe2( <unfinished ...>
[pid  3942] write(-1, NULL, 0 <unfinished ...>
[pid  3944] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3943] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3942] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3944] write(-1, NULL, 0 <unfinished ...>
[pid  3943] write(-1, NULL, 0 <unfinished ...>
[pid  3942] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3944] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3943] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3942] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3943] write(-1, NULL, 0 <unfinished ...>
[pid  3944] write(-1, NULL, 0 <unfinished ...>
[pid  3943] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3942] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3944] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3943] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3944] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3943] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3944] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3943] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3944] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3944] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3940] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3940] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3943] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3940] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3940] exit_group(0)               = ?
[pid  3940] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3940, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3)                    = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3939] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3939] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3945
[pid  3939] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3939] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3939] exit_group(0)               = ?
[pid  3939] +++ exited with 0 +++
./strace-static-x86_64: Process 3945 attached
[pid  3942] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3941] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3942] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3941] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3939, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3942] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3941] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3619] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3942] fdatasync(-1 <unfinished ...>
[pid  3941] fdatasync(-1 <unfinished ...>
[pid  3619] <... restart_syscall resumed>) = 0
[pid  3942] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3941] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3942] exit_group(0 <unfinished ...>
[pid  3941] exit_group(0 <unfinished ...>
[pid  3942] <... exit_group resumed>)   = ?
[pid  3941] <... exit_group resumed>)   = ?
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3944] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3942] +++ exited with 0 +++
[pid  3941] +++ exited with 0 +++
[pid  3619] <... openat resumed>)       = 3
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3941, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3942, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3944] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3619] close(3 <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3619] <... close resumed>)        = 0
[pid  3622] <... openat resumed>)       = 3
[pid  3620] <... openat resumed>)       = 3
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3944] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3945] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3943] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3946
[pid  3945] <... prctl resumed>)        = 0
[pid  3944] fdatasync(-1 <unfinished ...>
[pid  3622] close(3 <unfinished ...>
[pid  3620] close(3 <unfinished ...>
[pid  3945] setpgid(0, 0 <unfinished ...>
[pid  3622] <... close resumed>)        = 0
[pid  3620] <... close resumed>)        = 0
[pid  3944] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3945] <... setpgid resumed>)      = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3945] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3944] exit_group(0 <unfinished ...>
[pid  3943] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3945] <... openat resumed>)       = 3
[pid  3944] <... exit_group resumed>)   = ?
[pid  3943] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3947
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3948
[pid  3945] write(3, "1000", 4)         = 4
[pid  3945] close(3)                    = 0
[pid  3945] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3944] +++ exited with 0 +++
[pid  3945] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3943] fdatasync(-1 <unfinished ...>
[pid  3945] pipe2( <unfinished ...>
[pid  3943] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3944, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3945] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3943] exit_group(0 <unfinished ...>
[pid  3618] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3945] write(-1, NULL, 0 <unfinished ...>
[pid  3943] <... exit_group resumed>)   = ?
[pid  3945] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] <... restart_syscall resumed>) = 0
[pid  3945] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
./strace-static-x86_64: Process 3946 attached
[pid  3945] write(-1, NULL, 0 <unfinished ...>
[pid  3946] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3945] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3946] <... prctl resumed>)        = 0
[pid  3945] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80./strace-static-x86_64: Process 3947 attached
 <unfinished ...>
[pid  3946] setpgid(0, 0 <unfinished ...>
[pid  3945] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] <... openat resumed>)       = 3
[pid  3947] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3946] <... setpgid resumed>)      = 0
[pid  3945] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3943] +++ exited with 0 +++
[pid  3618] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3948 attached
 <unfinished ...>
[pid  3947] <... prctl resumed>)        = 0
[pid  3946] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3947] setpgid(0, 0 <unfinished ...>
[pid  3946] <... openat resumed>)       = 3
[pid  3947] <... setpgid resumed>)      = 0
[pid  3946] write(3, "1000", 4 <unfinished ...>
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3943, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3947] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3946] <... write resumed>)        = 4
[pid  3618] close(3 <unfinished ...>
[pid  3617] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3947] <... openat resumed>)       = 3
[pid  3946] close(3 <unfinished ...>
[pid  3618] <... close resumed>)        = 0
[pid  3617] <... restart_syscall resumed>) = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3947] write(3, "1000", 4 <unfinished ...>
[pid  3946] <... close resumed>)        = 0
[pid  3947] <... write resumed>)        = 4
[pid  3946] mkdir("./file0", 0777 <unfinished ...>
[pid  3947] close(3 <unfinished ...>
[pid  3946] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3947] <... close resumed>)        = 0
[pid  3946] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3949
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3947] mkdir("./file0", 0777 <unfinished ...>
[pid  3946] pipe2( <unfinished ...>
[pid  3947] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3946] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3617] <... openat resumed>)       = 3
[pid  3947] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3946] write(-1, NULL, 0 <unfinished ...>
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3947] pipe2( <unfinished ...>
[pid  3946] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3947] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3946] write(-1, NULL, 0 <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3947] write(-1, NULL, 0 <unfinished ...>
[pid  3946] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3947] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3946] write(-1, NULL, 0 <unfinished ...>
[pid  3617] close(3 <unfinished ...>
[pid  3947] write(-1, NULL, 0 <unfinished ...>
[pid  3946] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3947] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3946] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3948] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3947] write(-1, NULL, 0 <unfinished ...>
[pid  3946] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3950 attached
./strace-static-x86_64: Process 3949 attached
 <unfinished ...>
[pid  3948] <... prctl resumed>)        = 0
[pid  3947] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3946] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3950] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3949] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3948] setpgid(0, 0 <unfinished ...>
[pid  3947] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3950
[pid  3950] <... prctl resumed>)        = 0
[pid  3949] <... prctl resumed>)        = 0
[pid  3948] <... setpgid resumed>)      = 0
[pid  3947] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3950] setpgid(0, 0 <unfinished ...>
[pid  3949] setpgid(0, 0 <unfinished ...>
[pid  3948] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3947] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3945] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3950] <... setpgid resumed>)      = 0
[pid  3949] <... setpgid resumed>)      = 0
[pid  3948] <... openat resumed>)       = 3
[pid  3950] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3949] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3948] write(3, "1000", 4 <unfinished ...>
[pid  3945] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3950] <... openat resumed>)       = 3
[pid  3949] <... openat resumed>)       = 3
[pid  3948] <... write resumed>)        = 4
[pid  3950] write(3, "1000", 4 <unfinished ...>
[pid  3949] write(3, "1000", 4 <unfinished ...>
[pid  3948] close(3 <unfinished ...>
[pid  3945] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3950] <... write resumed>)        = 4
[pid  3949] <... write resumed>)        = 4
[pid  3948] <... close resumed>)        = 0
[pid  3945] fdatasync(-1 <unfinished ...>
[pid  3950] close(3 <unfinished ...>
[pid  3949] close(3 <unfinished ...>
[pid  3948] mkdir("./file0", 0777 <unfinished ...>
[pid  3945] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3950] <... close resumed>)        = 0
[pid  3949] <... close resumed>)        = 0
[pid  3948] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3945] exit_group(0 <unfinished ...>
[pid  3950] mkdir("./file0", 0777 <unfinished ...>
[pid  3949] mkdir("./file0", 0777 <unfinished ...>
[pid  3948] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3950] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3949] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3948] pipe2( <unfinished ...>
[pid  3945] <... exit_group resumed>)   = ?
[pid  3950] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3949] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3948] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3950] pipe2( <unfinished ...>
[pid  3949] pipe2( <unfinished ...>
[pid  3948] write(-1, NULL, 0 <unfinished ...>
[pid  3950] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3949] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3948] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3950] write(-1, NULL, 0 <unfinished ...>
[pid  3949] write(-1, NULL, 0 <unfinished ...>
[pid  3948] write(-1, NULL, 0 <unfinished ...>
[pid  3945] +++ exited with 0 +++
[pid  3950] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3949] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3948] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3945, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3950] write(-1, NULL, 0 <unfinished ...>
[pid  3949] write(-1, NULL, 0 <unfinished ...>
[pid  3948] write(-1, NULL, 0 <unfinished ...>
[pid  3616] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3950] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3949] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3948] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3616] <... restart_syscall resumed>) = 0
[pid  3950] write(-1, NULL, 0 <unfinished ...>
[pid  3949] write(-1, NULL, 0 <unfinished ...>
[pid  3948] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3946] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3950] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3949] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3948] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3950] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3949] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3948] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3946] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3950] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3949] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3946] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3616] <... openat resumed>)       = 3
[pid  3950] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3949] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3948] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3947] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3946] fdatasync(-1 <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3948] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3947] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3946] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3616] close(3 <unfinished ...>
[pid  3948] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3947] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3946] exit_group(0 <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3948] fdatasync(-1 <unfinished ...>
[pid  3947] fdatasync(-1 <unfinished ...>
[pid  3946] <... exit_group resumed>)   = ?
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3948] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3947] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3951
[pid  3946] +++ exited with 0 +++
[pid  3947] exit_group(0 <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3946, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3948] exit_group(0 <unfinished ...>
[pid  3947] <... exit_group resumed>)   = ?
[pid  3948] <... exit_group resumed>)   = ?
./strace-static-x86_64: Process 3951 attached
[pid  3951] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3951] setpgid(0, 0)               = 0
[pid  3951] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3947] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3947, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3951] <... openat resumed>)       = 3
[pid  3951] write(3, "1000", 4)         = 4
[pid  3951] close(3 <unfinished ...>
[pid  3948] +++ exited with 0 +++
[pid  3951] <... close resumed>)        = 0
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3948, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3951] mkdir("./file0", 0777 <unfinished ...>
[pid  3620] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3619] <... openat resumed>)       = 3
[pid  3620] <... restart_syscall resumed>) = 0
[pid  3619] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3619] close(3 <unfinished ...>
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3619] <... close resumed>)        = 0
[pid  3620] <... openat resumed>)       = 3
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3951] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3951] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3951] pipe2([3, 4], 0)            = 0
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3952
[pid  3622] <... openat resumed>)       = 3
[pid  3620] close(3 <unfinished ...>
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3620] <... close resumed>)        = 0
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3622] close(3 <unfinished ...>
[pid  3951] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3951] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3951] write(-1, NULL, 0 <unfinished ...>
[pid  3622] <... close resumed>)        = 0
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3953
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3951] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3951] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3951] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3954
./strace-static-x86_64: Process 3952 attached
[pid  3952] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3952] setpgid(0, 0)               = 0
[pid  3952] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3952] write(3, "1000", 4)         = 4
[pid  3952] close(3)                    = 0
[pid  3952] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3952] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
./strace-static-x86_64: Process 3954 attached
./strace-static-x86_64: Process 3953 attached
[pid  3952] pipe2([3, 4], 0)            = 0
[pid  3952] write(-1, NULL, 0 <unfinished ...>
[pid  3954] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3952] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3952] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3952] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3952] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3953] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3954] <... prctl resumed>)        = 0
[pid  3952] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3954] setpgid(0, 0 <unfinished ...>
[pid  3953] <... prctl resumed>)        = 0
[pid  3950] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3949] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3950] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3949] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3950] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3949] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3950] fdatasync(-1 <unfinished ...>
[pid  3949] fdatasync(-1 <unfinished ...>
[pid  3950] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3949] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3954] <... setpgid resumed>)      = 0
[pid  3953] setpgid(0, 0 <unfinished ...>
[pid  3950] exit_group(0 <unfinished ...>
[pid  3949] exit_group(0 <unfinished ...>
[pid  3953] <... setpgid resumed>)      = 0
[pid  3950] <... exit_group resumed>)   = ?
[pid  3949] <... exit_group resumed>)   = ?
[pid  3954] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3953] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3950] +++ exited with 0 +++
[pid  3949] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3949, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3954] <... openat resumed>)       = 3
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3950, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3954] write(3, "1000", 4 <unfinished ...>
[pid  3953] <... openat resumed>)       = 3
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3954] <... write resumed>)        = 4
[pid  3953] write(3, "1000", 4 <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3954] close(3 <unfinished ...>
[pid  3953] <... write resumed>)        = 4
[pid  3617] close(3 <unfinished ...>
[pid  3954] <... close resumed>)        = 0
[pid  3953] close(3 <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3954] mkdir("./file0", 0777 <unfinished ...>
[pid  3953] <... close resumed>)        = 0
[pid  3618] <... openat resumed>)       = 3
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3955
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3618] close(3)                    = 0
[pid  3954] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3954] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3953] mkdir("./file0", 0777 <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3956
[pid  3954] pipe2( <unfinished ...>
[pid  3953] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3954] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3953] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3954] write(-1, NULL, 0./strace-static-x86_64: Process 3956 attached
)          = -1 EBADF (Bad file descriptor)
[pid  3953] pipe2( <unfinished ...>
[pid  3954] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3953] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3954] write(-1, NULL, 0 <unfinished ...>
[pid  3953] write(-1, NULL, 0 <unfinished ...>
[pid  3954] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3954] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3953] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3954] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3953] write(-1, NULL, 0 <unfinished ...>
[pid  3954] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3953] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3956] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3956] setpgid(0, 0)               = 0
[pid  3956] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3953] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3953] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3953] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3956] <... openat resumed>)       = 3
[pid  3956] write(3, "1000", 4)         = 4
[pid  3956] close(3)                    = 0
[pid  3956] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
./strace-static-x86_64: Process 3955 attached
[pid  3956] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3951] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3956] pipe2( <unfinished ...>
[pid  3951] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3956] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3955] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3951] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3956] write(-1, NULL, 0 <unfinished ...>
[pid  3955] <... prctl resumed>)        = 0
[pid  3951] fdatasync(-1 <unfinished ...>
[pid  3956] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3951] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3956] write(-1, NULL, 0 <unfinished ...>
[pid  3955] setpgid(0, 0 <unfinished ...>
[pid  3951] exit_group(0 <unfinished ...>
[pid  3956] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3951] <... exit_group resumed>)   = ?
[pid  3956] write(-1, NULL, 0 <unfinished ...>
[pid  3955] <... setpgid resumed>)      = 0
[pid  3951] +++ exited with 0 +++
[pid  3956] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3951, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3956] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3956] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3955] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3955] <... openat resumed>)       = 3
[pid  3616] <... openat resumed>)       = 3
[pid  3616] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3616] close(3 <unfinished ...>
[pid  3955] write(3, "1000", 4 <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3955] <... write resumed>)        = 4
[pid  3955] close(3 <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3957
[pid  3955] <... close resumed>)        = 0
./strace-static-x86_64: Process 3957 attached
[pid  3955] mkdir("./file0", 0777 <unfinished ...>
[pid  3957] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3955] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3955] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3955] pipe2( <unfinished ...>
[pid  3957] <... prctl resumed>)        = 0
[pid  3957] setpgid(0, 0 <unfinished ...>
[pid  3955] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3957] <... setpgid resumed>)      = 0
[pid  3957] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3955] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3955] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3955] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3957] <... openat resumed>)       = 3
[pid  3955] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3957] write(3, "1000", 4)         = 4
[pid  3957] close(3 <unfinished ...>
[pid  3955] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3957] <... close resumed>)        = 0
[pid  3955] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3957] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3957] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3957] pipe2([3, 4], 0)            = 0
[pid  3957] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3957] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3957] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3957] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3957] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3952] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3952] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3952] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3952] exit_group(0)               = ?
[pid  3953] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3952] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3952, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3954] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR) = 3
[pid  3953] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3953] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3954] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3953] exit_group(0 <unfinished ...>
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3953] <... exit_group resumed>)   = ?
[pid  3954] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3953] +++ exited with 0 +++
[pid  3619] close(3 <unfinished ...>
[pid  3954] fdatasync(-1 <unfinished ...>
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3953, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] <... close resumed>)        = 0
[pid  3954] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3954] exit_group(0 <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3954] <... exit_group resumed>)   = ?
[pid  3954] +++ exited with 0 +++
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3958
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3954, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3620] <... openat resumed>)       = 3
[pid  3622] <... openat resumed>)       = 3
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3620] close(3 <unfinished ...>
[pid  3622] close(3 <unfinished ...>
[pid  3620] <... close resumed>)        = 0
[pid  3622] <... close resumed>)        = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3958 attached
 <unfinished ...>
[pid  3958] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3958] setpgid(0, 0)               = 0
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3959
[pid  3958] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3958] write(3, "1000", 4)         = 4
[pid  3958] close(3)                    = 0
[pid  3958] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3958] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3958] pipe2([3, 4], 0)            = 0
[pid  3958] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3958] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3958] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3958] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3958] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3959 attached
 <unfinished ...>
[pid  3959] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3960
./strace-static-x86_64: Process 3960 attached
[pid  3955] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3955] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3957] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3955] fdatasync(-1 <unfinished ...>
[pid  3957] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3955] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3957] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3956] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3955] exit_group(0 <unfinished ...>
[pid  3957] fdatasync(-1 <unfinished ...>
[pid  3956] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3955] <... exit_group resumed>)   = ?
[pid  3957] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3956] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3955] +++ exited with 0 +++
[pid  3957] exit_group(0 <unfinished ...>
[pid  3956] fdatasync(-1 <unfinished ...>
[pid  3957] <... exit_group resumed>)   = ?
[pid  3956] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3959] setpgid(0, 0)               = 0
[pid  3957] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3955, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3956] exit_group(0 <unfinished ...>
[pid  3960] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3959] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3960] setpgid(0, 0 <unfinished ...>
[pid  3959] <... openat resumed>)       = 3
[pid  3960] <... setpgid resumed>)      = 0
[pid  3959] write(3, "1000", 4 <unfinished ...>
[pid  3960] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3959] <... write resumed>)        = 4
[pid  3960] <... openat resumed>)       = 3
[pid  3959] close(3 <unfinished ...>
[pid  3956] <... exit_group resumed>)   = ?
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3960] write(3, "1000", 4 <unfinished ...>
[pid  3959] <... close resumed>)        = 0
[pid  3960] <... write resumed>)        = 4
[pid  3959] mkdir("./file0", 0777 <unfinished ...>
[pid  3960] close(3 <unfinished ...>
[pid  3959] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3956] +++ exited with 0 +++
[pid  3617] <... openat resumed>)       = 3
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3957, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3960] <... close resumed>)        = 0
[pid  3959] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3956, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3960] mkdir("./file0", 0777 <unfinished ...>
[pid  3959] pipe2( <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3960] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3959] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3958] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3616] <... restart_syscall resumed>) = 0
[pid  3960] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3959] write(-1, NULL, 0 <unfinished ...>
[pid  3958] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3617] close(3 <unfinished ...>
[pid  3960] pipe2( <unfinished ...>
[pid  3959] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3958] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3960] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3959] write(-1, NULL, 0 <unfinished ...>
[pid  3958] fdatasync(-1 <unfinished ...>
[pid  3960] write(-1, NULL, 0 <unfinished ...>
[pid  3959] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3958] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3618] <... openat resumed>)       = 3
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3960] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3959] write(-1, NULL, 0 <unfinished ...>
[pid  3958] exit_group(0 <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3960] write(-1, NULL, 0 <unfinished ...>
[pid  3959] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3958] <... exit_group resumed>)   = ?
[pid  3616] <... openat resumed>)       = 3
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3960] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3959] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3960] write(-1, NULL, 0 <unfinished ...>
[pid  3959] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3960] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3959] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3958] +++ exited with 0 +++
[pid  3618] close(3 <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3961
[pid  3616] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3961 attached
 <unfinished ...>
[pid  3960] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3958, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] <... close resumed>)        = 0
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3961] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3960] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3619] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] close(3./strace-static-x86_64: Process 3962 attached
 <unfinished ...>
[pid  3961] <... prctl resumed>)        = 0
[pid  3960] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3619] <... restart_syscall resumed>) = 0
[pid  3616] <... close resumed>)        = 0
[pid  3961] setpgid(0, 0 <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3962
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3961] <... setpgid resumed>)      = 0
[pid  3961] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3963
[pid  3961] <... openat resumed>)       = 3
[pid  3961] write(3, "1000", 4)         = 4
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3961] close(3)                    = 0
[pid  3619] <... openat resumed>)       = 3
[pid  3961] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3961] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3961] pipe2([3, 4], 0)            = 0
[pid  3961] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3961] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3961] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3961] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3961] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3963 attached
 <unfinished ...>
[pid  3963] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3619] close(3)                    = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3963] <... prctl resumed>)        = 0
[pid  3963] setpgid(0, 0)               = 0
[pid  3963] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3964
./strace-static-x86_64: Process 3964 attached
[pid  3962] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3959] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3959] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3959] fdatasync(-1 <unfinished ...>
[pid  3962] <... prctl resumed>)        = 0
[pid  3959] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3963] write(3, "1000", 4)         = 4
[pid  3963] close(3)                    = 0
[pid  3959] exit_group(0 <unfinished ...>
[pid  3964] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3962] setpgid(0, 0 <unfinished ...>
[pid  3964] <... prctl resumed>)        = 0
[pid  3963] mkdir("./file0", 0777 <unfinished ...>
[pid  3962] <... setpgid resumed>)      = 0
[pid  3959] <... exit_group resumed>)   = ?
[pid  3964] setpgid(0, 0 <unfinished ...>
[pid  3963] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3962] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3959] +++ exited with 0 +++
[pid  3964] <... setpgid resumed>)      = 0
[pid  3963] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3962] <... openat resumed>)       = 3
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3959, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3964] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3963] pipe2( <unfinished ...>
[pid  3962] write(3, "1000", 4 <unfinished ...>
[pid  3964] <... openat resumed>)       = 3
[pid  3963] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3962] <... write resumed>)        = 4
[pid  3964] write(3, "1000", 4 <unfinished ...>
[pid  3963] write(-1, NULL, 0 <unfinished ...>
[pid  3962] close(3 <unfinished ...>
[pid  3964] <... write resumed>)        = 4
[pid  3963] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3962] <... close resumed>)        = 0
[pid  3964] close(3 <unfinished ...>
[pid  3963] write(-1, NULL, 0 <unfinished ...>
[pid  3962] mkdir("./file0", 0777 <unfinished ...>
[pid  3964] <... close resumed>)        = 0
[pid  3963] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3962] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3964] mkdir("./file0", 0777 <unfinished ...>
[pid  3963] write(-1, NULL, 0 <unfinished ...>
[pid  3962] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3964] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3963] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3962] pipe2( <unfinished ...>
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3964] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3963] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3962] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3960] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] <... openat resumed>)       = 3
[pid  3964] pipe2( <unfinished ...>
[pid  3963] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3962] write(-1, NULL, 0 <unfinished ...>
[pid  3961] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3960] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3964] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3963] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3962] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3961] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3960] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3964] write(-1, NULL, 0 <unfinished ...>
[pid  3962] write(-1, NULL, 0 <unfinished ...>
[pid  3961] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3960] fdatasync(-1 <unfinished ...>
[pid  3620] close(3 <unfinished ...>
[pid  3964] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3962] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3961] fdatasync(-1 <unfinished ...>
[pid  3960] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3620] <... close resumed>)        = 0
[pid  3964] write(-1, NULL, 0 <unfinished ...>
[pid  3962] write(-1, NULL, 0 <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3964] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3962] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3961] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3960] exit_group(0 <unfinished ...>
[pid  3964] write(-1, NULL, 0 <unfinished ...>
[pid  3962] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3961] exit_group(0 <unfinished ...>
[pid  3960] <... exit_group resumed>)   = ?
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3965
[pid  3964] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3962] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3964] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3962] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3964] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3964] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3960] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3960, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3961] <... exit_group resumed>)   = ?
[pid  3961] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3961, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
./strace-static-x86_64: Process 3965 attached
[pid  3963] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3965] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3963] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3965] <... prctl resumed>)        = 0
[pid  3963] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3965] setpgid(0, 0 <unfinished ...>
[pid  3963] fdatasync(-1 <unfinished ...>
[pid  3622] <... openat resumed>)       = 3
[pid  3617] <... openat resumed>)       = 3
[pid  3965] <... setpgid resumed>)      = 0
[pid  3963] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3965] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3963] exit_group(0 <unfinished ...>
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3965] <... openat resumed>)       = 3
[pid  3963] <... exit_group resumed>)   = ?
[pid  3622] close(3 <unfinished ...>
[pid  3617] close(3 <unfinished ...>
[pid  3965] write(3, "1000", 4 <unfinished ...>
[pid  3963] +++ exited with 0 +++
[pid  3617] <... close resumed>)        = 0
[pid  3965] <... write resumed>)        = 4
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3966 attached
 <unfinished ...>
[pid  3965] close(3 <unfinished ...>
[pid  3962] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3622] <... close resumed>)        = 0
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3963, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3965] <... close resumed>)        = 0
[pid  3962] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3966
[pid  3965] mkdir("./file0", 0777 <unfinished ...>
[pid  3962] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3965] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3965] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3965] pipe2([3, 4], 0)            = 0
[pid  3962] fdatasync(-1 <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3967
[pid  3965] write(-1, NULL, 0 <unfinished ...>
[pid  3962] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3965] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3965] write(-1, NULL, 0 <unfinished ...>
[pid  3962] exit_group(0 <unfinished ...>
[pid  3965] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3965] write(-1, NULL, 0 <unfinished ...>
[pid  3962] <... exit_group resumed>)   = ?
[pid  3616] <... openat resumed>)       = 3
[pid  3965] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3965] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3965] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3967 attached
 <unfinished ...>
[pid  3966] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3964] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3962] +++ exited with 0 +++
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3967] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3966] <... prctl resumed>)        = 0
[pid  3964] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3962, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3967] <... prctl resumed>)        = 0
[pid  3966] setpgid(0, 0 <unfinished ...>
[pid  3964] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3616] close(3 <unfinished ...>
[pid  3967] setpgid(0, 0 <unfinished ...>
[pid  3966] <... setpgid resumed>)      = 0
[pid  3965] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3964] fdatasync(-1 <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3967] <... setpgid resumed>)      = 0
[pid  3966] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3965] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3964] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3967] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3966] <... openat resumed>)       = 3
[pid  3965] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3964] exit_group(0 <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  3967] <... openat resumed>)       = 3
[pid  3966] write(3, "1000", 4 <unfinished ...>
[pid  3965] fdatasync(-1 <unfinished ...>
[pid  3964] <... exit_group resumed>)   = ?
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3968
[pid  3967] write(3, "1000", 4 <unfinished ...>
[pid  3966] <... write resumed>)        = 4
[pid  3965] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3964] +++ exited with 0 +++
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3967] <... write resumed>)        = 4
[pid  3966] close(3 <unfinished ...>
[pid  3965] exit_group(0 <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3964, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] close(3./strace-static-x86_64: Process 3968 attached
 <unfinished ...>
[pid  3967] close(3 <unfinished ...>
[pid  3966] <... close resumed>)        = 0
[pid  3965] <... exit_group resumed>)   = ?
[pid  3618] <... close resumed>)        = 0
[pid  3967] <... close resumed>)        = 0
[pid  3966] mkdir("./file0", 0777 <unfinished ...>
[pid  3968] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3967] mkdir("./file0", 0777 <unfinished ...>
[pid  3966] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3965] +++ exited with 0 +++
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3967] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3966] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3967] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3966] pipe2( <unfinished ...>
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3965, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3968] <... prctl resumed>)        = 0
[pid  3967] pipe2( <unfinished ...>
[pid  3966] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3969
[pid  3968] setpgid(0, 0 <unfinished ...>
[pid  3967] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3966] write(-1, NULL, 0 <unfinished ...>
[pid  3620] <... openat resumed>)       = 3
[pid  3619] <... openat resumed>)       = 3
[pid  3968] <... setpgid resumed>)      = 0
[pid  3967] write(-1, NULL, 0 <unfinished ...>
[pid  3966] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3619] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 3969 attached
 <unfinished ...>
[pid  3968] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3967] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3966] write(-1, NULL, 0 <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3969] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3968] <... openat resumed>)       = 3
[pid  3967] write(-1, NULL, 0 <unfinished ...>
[pid  3966] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] close(3 <unfinished ...>
[pid  3619] close(3 <unfinished ...>
[pid  3969] <... prctl resumed>)        = 0
[pid  3968] write(3, "1000", 4 <unfinished ...>
[pid  3967] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3966] write(-1, NULL, 0 <unfinished ...>
[pid  3620] <... close resumed>)        = 0
[pid  3619] <... close resumed>)        = 0
[pid  3969] setpgid(0, 0 <unfinished ...>
[pid  3968] <... write resumed>)        = 4
[pid  3967] write(-1, NULL, 0 <unfinished ...>
[pid  3966] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3969] <... setpgid resumed>)      = 0
[pid  3968] close(3 <unfinished ...>
[pid  3967] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3966] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3969] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3968] <... close resumed>)        = 0
[pid  3967] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3966] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3970
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3971
[pid  3969] <... openat resumed>)       = 3
[pid  3968] mkdir("./file0", 0777 <unfinished ...>
[pid  3967] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3966] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3970 attached
 <unfinished ...>
[pid  3969] write(3, "1000", 4 <unfinished ...>
[pid  3968] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3967] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3970] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3969] <... write resumed>)        = 4
[pid  3968] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3970] <... prctl resumed>)        = 0
[pid  3969] close(3 <unfinished ...>
[pid  3968] pipe2( <unfinished ...>
[pid  3970] setpgid(0, 0 <unfinished ...>
[pid  3969] <... close resumed>)        = 0
[pid  3968] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3970] <... setpgid resumed>)      = 0
[pid  3969] mkdir("./file0", 0777 <unfinished ...>
[pid  3968] write(-1, NULL, 0 <unfinished ...>
[pid  3970] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3969] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3968] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3970] <... openat resumed>)       = 3
[pid  3969] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3968] write(-1, NULL, 0 <unfinished ...>
[pid  3970] write(3, "1000", 4 <unfinished ...>
[pid  3969] pipe2( <unfinished ...>
[pid  3968] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3970] <... write resumed>)        = 4
[pid  3969] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3968] write(-1, NULL, 0./strace-static-x86_64: Process 3971 attached
 <unfinished ...>
[pid  3970] close(3 <unfinished ...>
[pid  3969] write(-1, NULL, 0 <unfinished ...>
[pid  3968] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3971] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3970] <... close resumed>)        = 0
[pid  3969] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3968] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3970] mkdir("./file0", 0777 <unfinished ...>
[pid  3969] write(-1, NULL, 0 <unfinished ...>
[pid  3968] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3970] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3969] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3971] <... prctl resumed>)        = 0
[pid  3970] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3969] write(-1, NULL, 0 <unfinished ...>
[pid  3968] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3971] setpgid(0, 0 <unfinished ...>
[pid  3970] pipe2( <unfinished ...>
[pid  3969] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3971] <... setpgid resumed>)      = 0
[pid  3970] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3969] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3971] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3970] write(-1, NULL, 0 <unfinished ...>
[pid  3969] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3971] <... openat resumed>)       = 3
[pid  3970] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3969] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3971] write(3, "1000", 4 <unfinished ...>
[pid  3970] write(-1, NULL, 0 <unfinished ...>
[pid  3971] <... write resumed>)        = 4
[pid  3970] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3971] close(3 <unfinished ...>
[pid  3970] write(-1, NULL, 0 <unfinished ...>
[pid  3971] <... close resumed>)        = 0
[pid  3970] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3971] mkdir("./file0", 0777 <unfinished ...>
[pid  3970] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3971] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3970] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3971] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3970] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3971] pipe2([3, 4], 0)            = 0
[pid  3969] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3968] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3966] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3971] write(-1, NULL, 0 <unfinished ...>
[pid  3970] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3969] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3968] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3967] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3966] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3971] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3970] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3969] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3968] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3967] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3966] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3971] write(-1, NULL, 0 <unfinished ...>
[pid  3970] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3969] fdatasync(-1 <unfinished ...>
[pid  3968] fdatasync(-1 <unfinished ...>
[pid  3967] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3966] fdatasync(-1 <unfinished ...>
[pid  3971] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3970] fdatasync(-1 <unfinished ...>
[pid  3969] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3968] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3967] fdatasync(-1 <unfinished ...>
[pid  3966] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3971] write(-1, NULL, 0 <unfinished ...>
[pid  3970] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3969] exit_group(0 <unfinished ...>
[pid  3968] exit_group(0 <unfinished ...>
[pid  3967] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3971] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3970] exit_group(0 <unfinished ...>
[pid  3969] <... exit_group resumed>)   = ?
[pid  3966] exit_group(0 <unfinished ...>
[pid  3970] <... exit_group resumed>)   = ?
[pid  3969] +++ exited with 0 +++
[pid  3971] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3970] +++ exited with 0 +++
[pid  3968] <... exit_group resumed>)   = ?
[pid  3967] exit_group(0 <unfinished ...>
[pid  3966] <... exit_group resumed>)   = ?
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3969, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3971] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3968] +++ exited with 0 +++
[pid  3967] <... exit_group resumed>)   = ?
[pid  3971] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3967] +++ exited with 0 +++
[pid  3966] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3966, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3967, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3970, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3968, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3620] <... openat resumed>)       = 3
[pid  3618] close(3 <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3618] <... close resumed>)        = 0
[pid  3617] close(3 <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3620] close(3 <unfinished ...>
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3972
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3620] <... close resumed>)        = 0
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3973
[pid  3616] close(3 <unfinished ...>
[pid  3622] <... openat resumed>)       = 3
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3622] close(3 <unfinished ...>
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3974
[pid  3622] <... close resumed>)        = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3975
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3976
./strace-static-x86_64: Process 3973 attached
[pid  3973] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 3975 attached
) = 0
[pid  3975] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3973] setpgid(0, 0)               = 0
[pid  3973] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3975] <... prctl resumed>)        = 0
[pid  3975] setpgid(0, 0 <unfinished ...>
[pid  3973] <... openat resumed>)       = 3
./strace-static-x86_64: Process 3976 attached
./strace-static-x86_64: Process 3974 attached
./strace-static-x86_64: Process 3972 attached
[pid  3971] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3971] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3975] <... setpgid resumed>)      = 0
[pid  3976] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3975] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3974] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3973] write(3, "1000", 4 <unfinished ...>
[pid  3972] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3971] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3976] <... prctl resumed>)        = 0
[pid  3975] <... openat resumed>)       = 3
[pid  3974] <... prctl resumed>)        = 0
[pid  3973] <... write resumed>)        = 4
[pid  3972] <... prctl resumed>)        = 0
[pid  3971] fdatasync(-1 <unfinished ...>
[pid  3975] write(3, "1000", 4 <unfinished ...>
[pid  3971] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3976] setpgid(0, 0 <unfinished ...>
[pid  3974] setpgid(0, 0 <unfinished ...>
[pid  3976] <... setpgid resumed>)      = 0
[pid  3971] exit_group(0 <unfinished ...>
[pid  3975] <... write resumed>)        = 4
[pid  3974] <... setpgid resumed>)      = 0
[pid  3973] close(3 <unfinished ...>
[pid  3972] setpgid(0, 0 <unfinished ...>
[pid  3971] <... exit_group resumed>)   = ?
[pid  3976] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3974] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3975] close(3)                    = 0
[pid  3975] mkdir("./file0", 0777 <unfinished ...>
[pid  3971] +++ exited with 0 +++
[pid  3975] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3975] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3974] <... openat resumed>)       = 3
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3971, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3975] pipe2( <unfinished ...>
[pid  3976] <... openat resumed>)       = 3
[pid  3975] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3974] write(3, "1000", 4 <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3975] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3975] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3975] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3976] write(3, "1000", 4 <unfinished ...>
[pid  3619] <... openat resumed>)       = 3
[pid  3974] <... write resumed>)        = 4
[pid  3972] <... setpgid resumed>)      = 0
[pid  3973] <... close resumed>)        = 0
[pid  3975] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3976] <... write resumed>)        = 4
[pid  3975] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3974] close(3 <unfinished ...>
[pid  3972] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3975] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3976] close(3 <unfinished ...>
[pid  3974] <... close resumed>)        = 0
[pid  3973] mkdir("./file0", 0777 <unfinished ...>
[pid  3972] <... openat resumed>)       = 3
[pid  3619] close(3 <unfinished ...>
[pid  3976] <... close resumed>)        = 0
[pid  3974] mkdir("./file0", 0777 <unfinished ...>
[pid  3972] write(3, "1000", 4 <unfinished ...>
[pid  3619] <... close resumed>)        = 0
[pid  3973] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3976] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3974] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3972] <... write resumed>)        = 4
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3977
[pid  3976] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3974] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3976] pipe2( <unfinished ...>
[pid  3972] close(3 <unfinished ...>
[pid  3974] pipe2( <unfinished ...>
[pid  3976] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3973] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3974] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3972] <... close resumed>)        = 0
[pid  3976] write(-1, NULL, 0 <unfinished ...>
[pid  3974] write(-1, NULL, 0 <unfinished ...>
[pid  3973] pipe2( <unfinished ...>
[pid  3976] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3974] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3972] mkdir("./file0", 0777 <unfinished ...>
[pid  3976] write(-1, NULL, 0 <unfinished ...>
[pid  3973] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3976] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3974] write(-1, NULL, 0 <unfinished ...>
[pid  3972] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3976] write(-1, NULL, 0 <unfinished ...>
[pid  3974] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3973] write(-1, NULL, 0 <unfinished ...>
[pid  3974] write(-1, NULL, 0 <unfinished ...>
[pid  3976] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3974] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3972] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3976] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3973] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3976] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3974] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3972] pipe2( <unfinished ...>
[pid  3973] write(-1, NULL, 0 <unfinished ...>
[pid  3976] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3974] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3973] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3972] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3974] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3977 attached
 <unfinished ...>
[pid  3975] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3973] write(-1, NULL, 0 <unfinished ...>
[pid  3972] write(-1, NULL, 0 <unfinished ...>
[pid  3975] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3973] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3972] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3975] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3973] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3972] write(-1, NULL, 0 <unfinished ...>
[pid  3975] fdatasync(-1 <unfinished ...>
[pid  3973] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3972] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3975] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3975] exit_group(0)               = ?
[pid  3977] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3976] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3975] +++ exited with 0 +++
[pid  3974] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3973] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3972] write(-1, NULL, 0 <unfinished ...>
[pid  3977] <... prctl resumed>)        = 0
[pid  3976] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3976] fdatasync(-1 <unfinished ...>
[pid  3972] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3976] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3974] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3972] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3975, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3976] exit_group(0 <unfinished ...>
[pid  3974] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3972] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3616] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3976] <... exit_group resumed>)   = ?
[pid  3974] fdatasync(-1 <unfinished ...>
[pid  3972] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3616] <... restart_syscall resumed>) = 0
[pid  3977] setpgid(0, 0 <unfinished ...>
[pid  3976] +++ exited with 0 +++
[pid  3974] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3976, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3977] <... setpgid resumed>)      = 0
[pid  3974] exit_group(0 <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3974] <... exit_group resumed>)   = ?
[pid  3622] <... openat resumed>)       = 3
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3622] close(3 <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
[pid  3622] <... close resumed>)        = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3974] +++ exited with 0 +++
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3978
[pid  3616] close(3 <unfinished ...>
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3974, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3620] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3620] <... restart_syscall resumed>) = 0
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3979
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR) = 3
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3977] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3620] close(3 <unfinished ...>
[pid  3973] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] <... close resumed>)        = 0
[pid  3973] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3977] <... openat resumed>)       = 3
[pid  3973] <... openat resumed>)       = -1 EFAULT (Bad address)
./strace-static-x86_64: Process 3978 attached
[pid  3978] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3978] setpgid(0, 0 <unfinished ...>
[pid  3973] fdatasync(-1 <unfinished ...>
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3980
[pid  3973] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3978] <... setpgid resumed>)      = 0
[pid  3973] exit_group(0)               = ?
[pid  3978] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3977] write(3, "1000", 4 <unfinished ...>
[pid  3973] +++ exited with 0 +++
./strace-static-x86_64: Process 3979 attached
[pid  3978] write(3, "1000", 4 <unfinished ...>
[pid  3977] <... write resumed>)        = 4
[pid  3972] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3979] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3978] <... write resumed>)        = 4
[pid  3977] close(3 <unfinished ...>
[pid  3972] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3973, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3978] close(3 <unfinished ...>
[pid  3977] <... close resumed>)        = 0
[pid  3972] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3978] <... close resumed>)        = 0
[pid  3977] mkdir("./file0", 0777 <unfinished ...>
[pid  3972] fdatasync(-1 <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
./strace-static-x86_64: Process 3980 attached
[pid  3979] <... prctl resumed>)        = 0
[pid  3978] mkdir("./file0", 0777 <unfinished ...>
[pid  3977] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3972] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3980] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3979] setpgid(0, 0 <unfinished ...>
[pid  3978] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3977] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3972] exit_group(0 <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3980] <... prctl resumed>)        = 0
[pid  3979] <... setpgid resumed>)      = 0
[pid  3978] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3977] pipe2( <unfinished ...>
[pid  3972] <... exit_group resumed>)   = ?
[pid  3617] close(3 <unfinished ...>
[pid  3980] setpgid(0, 0 <unfinished ...>
[pid  3978] pipe2( <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3980] <... setpgid resumed>)      = 0
[pid  3978] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3980] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3979] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3978] write(-1, NULL, 0 <unfinished ...>
[pid  3977] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3972] +++ exited with 0 +++
./strace-static-x86_64: Process 3981 attached
[pid  3980] <... openat resumed>)       = 3
[pid  3979] <... openat resumed>)       = 3
[pid  3978] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3977] write(-1, NULL, 0 <unfinished ...>
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3972, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3981
[pid  3981] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3980] write(3, "1000", 4 <unfinished ...>
[pid  3979] write(3, "1000", 4 <unfinished ...>
[pid  3978] write(-1, NULL, 0 <unfinished ...>
[pid  3977] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3981] <... prctl resumed>)        = 0
[pid  3980] <... write resumed>)        = 4
[pid  3979] <... write resumed>)        = 4
[pid  3978] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3977] write(-1, NULL, 0 <unfinished ...>
[pid  3981] setpgid(0, 0 <unfinished ...>
[pid  3980] close(3 <unfinished ...>
[pid  3979] close(3 <unfinished ...>
[pid  3977] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3981] <... setpgid resumed>)      = 0
[pid  3979] <... close resumed>)        = 0
[pid  3977] write(-1, NULL, 0 <unfinished ...>
[pid  3981] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3979] mkdir("./file0", 0777 <unfinished ...>
[pid  3977] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3981] <... openat resumed>)       = 3
[pid  3979] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3977] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3981] write(3, "1000", 4 <unfinished ...>
[pid  3979] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3977] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3981] <... write resumed>)        = 4
[pid  3980] <... close resumed>)        = 0
[pid  3979] pipe2( <unfinished ...>
[pid  3978] write(-1, NULL, 0 <unfinished ...>
[pid  3977] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3981] close(3 <unfinished ...>
[pid  3980] mkdir("./file0", 0777 <unfinished ...>
[pid  3979] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3978] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] <... openat resumed>)       = 3
[pid  3981] <... close resumed>)        = 0
[pid  3980] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3979] write(-1, NULL, 0 <unfinished ...>
[pid  3978] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3980] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3978] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3980] pipe2( <unfinished ...>
[pid  3978] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3618] close(3 <unfinished ...>
[pid  3980] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3618] <... close resumed>)        = 0
[pid  3980] write(-1, NULL, 0 <unfinished ...>
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3980] <... write resumed>)        = -1 EBADF (Bad file descriptor)
./strace-static-x86_64: Process 3982 attached
[pid  3981] mkdir("./file0", 0777 <unfinished ...>
[pid  3980] write(-1, NULL, 0 <unfinished ...>
[pid  3979] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3982
[pid  3982] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3981] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3980] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3979] write(-1, NULL, 0 <unfinished ...>
[pid  3981] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3980] write(-1, NULL, 0 <unfinished ...>
[pid  3979] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3982] <... prctl resumed>)        = 0
[pid  3981] pipe2( <unfinished ...>
[pid  3980] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3979] write(-1, NULL, 0 <unfinished ...>
[pid  3981] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3980] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3979] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3981] write(-1, NULL, 0 <unfinished ...>
[pid  3980] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3979] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3982] setpgid(0, 0 <unfinished ...>
[pid  3981] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3980] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3982] <... setpgid resumed>)      = 0
[pid  3981] write(-1, NULL, 0 <unfinished ...>
[pid  3979] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3981] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3981] write(-1, NULL, 0 <unfinished ...>
[pid  3979] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3981] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3981] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3981] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3982] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3977] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3977] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3977] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3977] exit_group(0 <unfinished ...>
[pid  3980] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3977] <... exit_group resumed>)   = ?
[pid  3980] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3980] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3980] exit_group(0)               = ?
[pid  3982] <... openat resumed>)       = 3
[pid  3980] +++ exited with 0 +++
[pid  3979] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3978] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3977] +++ exited with 0 +++
[pid  3979] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3978] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3980, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3977, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3979] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3978] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3979] fdatasync(-1 <unfinished ...>
[pid  3978] fdatasync(-1 <unfinished ...>
[pid  3981] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3979] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3978] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3978] exit_group(0)               = ?
[pid  3982] write(3, "1000", 4 <unfinished ...>
[pid  3981] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3979] exit_group(0 <unfinished ...>
[pid  3978] +++ exited with 0 +++
[pid  3982] <... write resumed>)        = 4
[pid  3981] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3979] <... exit_group resumed>)   = ?
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3978, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3979] +++ exited with 0 +++
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3981] fdatasync(-1 <unfinished ...>
[pid  3982] close(3 <unfinished ...>
[pid  3981] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3620] <... openat resumed>)       = 3
[pid  3619] <... openat resumed>)       = 3
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3979, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3982] <... close resumed>)        = 0
[pid  3981] exit_group(0 <unfinished ...>
[pid  3622] <... openat resumed>)       = 3
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  3981] <... exit_group resumed>)   = ?
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3620] close(3 <unfinished ...>
[pid  3619] close(3 <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
[pid  3982] mkdir("./file0", 0777 <unfinished ...>
[pid  3981] +++ exited with 0 +++
[pid  3622] close(3 <unfinished ...>
[pid  3620] <... close resumed>)        = 0
[pid  3619] <... close resumed>)        = 0
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3982] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3622] <... close resumed>)        = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3984 attached
./strace-static-x86_64: Process 3983 attached
 <unfinished ...>
[pid  3982] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3981, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3983] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3982] pipe2( <unfinished ...>
[pid  3617] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3983] <... prctl resumed>)        = 0
[pid  3617] <... restart_syscall resumed>) = 0
[pid  3983] setpgid(0, 0)               = 0
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3983
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3984
[pid  3616] close(3 <unfinished ...>
[pid  3982] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3983] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3982] write(-1, NULL, 0 <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3985
[pid  3616] <... close resumed>)        = 0
./strace-static-x86_64: Process 3985 attached
[pid  3984] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3983] <... openat resumed>)       = 3
[pid  3982] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] <... openat resumed>)       = 3
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3983] write(3, "1000", 4 <unfinished ...>
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3983] <... write resumed>)        = 4
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3982] write(-1, NULL, 0 <unfinished ...>
[pid  3983] close(3 <unfinished ...>
[pid  3617] close(3 <unfinished ...>
[pid  3983] <... close resumed>)        = 0
[pid  3617] <... close resumed>)        = 0
[pid  3983] mkdir("./file0", 0777 <unfinished ...>
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3982] <... write resumed>)        = -1 EBADF (Bad file descriptor)
./strace-static-x86_64: Process 3987 attached
./strace-static-x86_64: Process 3986 attached
[pid  3985] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3984] <... prctl resumed>)        = 0
[pid  3983] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3982] write(-1, NULL, 0 <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3986
[pid  3983] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3983] pipe2( <unfinished ...>
[pid  3982] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3987
[pid  3984] setpgid(0, 0 <unfinished ...>
[pid  3983] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3983] write(-1, NULL, 0 <unfinished ...>
[pid  3982] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3985] <... prctl resumed>)        = 0
[pid  3984] <... setpgid resumed>)      = 0
[pid  3983] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3983] write(-1, NULL, 0 <unfinished ...>
[pid  3982] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3984] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3983] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3983] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3982] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3984] <... openat resumed>)       = 3
[pid  3983] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3983] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3986] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3985] setpgid(0, 0 <unfinished ...>
[pid  3984] write(3, "1000", 4 <unfinished ...>
[pid  3985] <... setpgid resumed>)      = 0
[pid  3984] <... write resumed>)        = 4
[pid  3984] close(3 <unfinished ...>
[pid  3985] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3984] <... close resumed>)        = 0
[pid  3985] <... openat resumed>)       = 3
[pid  3984] mkdir("./file0", 0777 <unfinished ...>
[pid  3986] <... prctl resumed>)        = 0
[pid  3984] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3985] write(3, "1000", 4 <unfinished ...>
[pid  3986] setpgid(0, 0 <unfinished ...>
[pid  3985] <... write resumed>)        = 4
[pid  3984] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3984] pipe2( <unfinished ...>
[pid  3985] close(3 <unfinished ...>
[pid  3984] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3985] <... close resumed>)        = 0
[pid  3984] write(-1, NULL, 0 <unfinished ...>
[pid  3985] mkdir("./file0", 0777 <unfinished ...>
[pid  3984] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3987] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3985] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3984] write(-1, NULL, 0 <unfinished ...>
[pid  3987] <... prctl resumed>)        = 0
[pid  3986] <... setpgid resumed>)      = 0
[pid  3985] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3984] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3982] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3987] setpgid(0, 0 <unfinished ...>
[pid  3986] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3985] pipe2( <unfinished ...>
[pid  3984] write(-1, NULL, 0 <unfinished ...>
[pid  3982] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3987] <... setpgid resumed>)      = 0
[pid  3985] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3984] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3982] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3987] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3986] <... openat resumed>)       = 3
[pid  3985] write(-1, NULL, 0 <unfinished ...>
[pid  3984] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3982] fdatasync(-1 <unfinished ...>
[pid  3987] <... openat resumed>)       = 3
[pid  3986] write(3, "1000", 4 <unfinished ...>
[pid  3985] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3984] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3982] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3987] write(3, "1000", 4 <unfinished ...>
[pid  3985] write(-1, NULL, 0 <unfinished ...>
[pid  3987] <... write resumed>)        = 4
[pid  3984] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3985] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3982] exit_group(0 <unfinished ...>
[pid  3986] <... write resumed>)        = 4
[pid  3987] close(3)                    = 0
[pid  3987] mkdir("./file0", 0777 <unfinished ...>
[pid  3985] write(-1, NULL, 0 <unfinished ...>
[pid  3982] <... exit_group resumed>)   = ?
[pid  3987] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3986] close(3 <unfinished ...>
[pid  3985] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3987] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3985] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3987] pipe2( <unfinished ...>
[pid  3985] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3987] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3987] write(-1, NULL, 0 <unfinished ...>
[pid  3986] <... close resumed>)        = 0
[pid  3985] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3982] +++ exited with 0 +++
[pid  3987] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3982, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3987] write(-1, NULL, 0 <unfinished ...>
[pid  3986] mkdir("./file0", 0777 <unfinished ...>
[pid  3987] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3986] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3987] write(-1, NULL, 0 <unfinished ...>
[pid  3986] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3987] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3986] pipe2( <unfinished ...>
[pid  3983] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3618] <... openat resumed>)       = 3
[pid  3987] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3983] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3987] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3983] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3987] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3983] fdatasync(-1 <unfinished ...>
[pid  3618] close(3 <unfinished ...>
[pid  3983] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3618] <... close resumed>)        = 0
[pid  3983] exit_group(0 <unfinished ...>
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3988 attached
 <unfinished ...>
[pid  3986] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3983] <... exit_group resumed>)   = ?
[pid  3988] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3986] write(-1, NULL, 0 <unfinished ...>
[pid  3983] +++ exited with 0 +++
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3988
[pid  3986] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3988] <... prctl resumed>)        = 0
[pid  3988] setpgid(0, 0)               = 0
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3983, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3988] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3986] write(-1, NULL, 0 <unfinished ...>
[pid  3988] <... openat resumed>)       = 3
[pid  3988] write(3, "1000", 4)         = 4
[pid  3988] close(3)                    = 0
[pid  3988] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3988] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3988] pipe2([3, 4], 0)            = 0
[pid  3988] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3988] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3988] write(-1, NULL, 0 <unfinished ...>
[pid  3986] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3984] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3988] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3986] write(-1, NULL, 0 <unfinished ...>
[pid  3984] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3620] <... openat resumed>)       = 3
[pid  3988] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3986] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3984] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3988] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3986] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3984] fdatasync(-1 <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3988] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3986] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3984] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3620] close(3 <unfinished ...>
[pid  3987] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3986] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3985] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3984] exit_group(0 <unfinished ...>
[pid  3620] <... close resumed>)        = 0
[pid  3987] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3987] fdatasync(-1 <unfinished ...>
[pid  3985] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3984] <... exit_group resumed>)   = ?
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3987] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3987] exit_group(0)               = ?
[pid  3987] +++ exited with 0 +++
[pid  3985] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3984] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3987, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3985] fdatasync(-1 <unfinished ...>
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3989
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3985] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3984, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3617] <... openat resumed>)       = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3985] exit_group(0 <unfinished ...>
[pid  3619] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3990
./strace-static-x86_64: Process 3989 attached
[pid  3989] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3989] setpgid(0, 0)               = 0
[pid  3989] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3989] write(3, "1000", 4)         = 4
[pid  3989] close(3)                    = 0
[pid  3989] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3989] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3989] pipe2([3, 4], 0)            = 0
[pid  3989] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3989] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3985] <... exit_group resumed>)   = ?
[pid  3619] <... restart_syscall resumed>) = 0
[pid  3989] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3989] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3989] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3985] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3985, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
./strace-static-x86_64: Process 3990 attached
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3990] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3990] setpgid(0, 0 <unfinished ...>
[pid  3619] <... openat resumed>)       = 3
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3990] <... setpgid resumed>)      = 0
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3619] close(3 <unfinished ...>
[pid  3990] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3619] <... close resumed>)        = 0
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3622] <... openat resumed>)       = 3
[pid  3990] <... openat resumed>)       = 3
[pid  3990] write(3, "1000", 4)         = 4
[pid  3990] close(3 <unfinished ...>
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3990] <... close resumed>)        = 0
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3991
[pid  3622] close(3 <unfinished ...>
[pid  3990] mkdir("./file0", 0777 <unfinished ...>
[pid  3622] <... close resumed>)        = 0
[pid  3990] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3990] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3990] pipe2([3, 4], 0)            = 0
[pid  3990] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3992
[pid  3990] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3990] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3990] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3990] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3991 attached
 <unfinished ...>
[pid  3991] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3991] setpgid(0, 0)               = 0
[pid  3991] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3991] write(3, "1000", 4 <unfinished ...>
[pid  3988] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3991] <... write resumed>)        = 4
[pid  3988] openat(AT_FDCWD, NULL, O_RDONLY./strace-static-x86_64: Process 3992 attached
 <unfinished ...>
[pid  3991] close(3 <unfinished ...>
[pid  3989] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3988] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3986] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3991] <... close resumed>)        = 0
[pid  3989] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3988] fdatasync(-1 <unfinished ...>
[pid  3986] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3992] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3991] mkdir("./file0", 0777 <unfinished ...>
[pid  3990] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3989] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3988] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3986] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3992] <... prctl resumed>)        = 0
[pid  3991] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3990] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3989] fdatasync(-1 <unfinished ...>
[pid  3988] exit_group(0 <unfinished ...>
[pid  3986] fdatasync(-1 <unfinished ...>
[pid  3992] setpgid(0, 0 <unfinished ...>
[pid  3991] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3990] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3989] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3988] <... exit_group resumed>)   = ?
[pid  3986] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3992] <... setpgid resumed>)      = 0
[pid  3991] pipe2( <unfinished ...>
[pid  3990] fdatasync(-1 <unfinished ...>
[pid  3989] exit_group(0 <unfinished ...>
[pid  3988] +++ exited with 0 +++
[pid  3986] exit_group(0 <unfinished ...>
[pid  3991] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3990] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3989] <... exit_group resumed>)   = ?
[pid  3986] <... exit_group resumed>)   = ?
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3988, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3992] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3991] write(-1, NULL, 0 <unfinished ...>
[pid  3990] exit_group(0 <unfinished ...>
[pid  3989] +++ exited with 0 +++
[pid  3991] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3990] <... exit_group resumed>)   = ?
[pid  3992] <... openat resumed>)       = 3
[pid  3991] write(-1, NULL, 0 <unfinished ...>
[pid  3990] +++ exited with 0 +++
[pid  3986] +++ exited with 0 +++
[pid  3992] write(3, "1000", 4 <unfinished ...>
[pid  3991] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3989, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3990, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3986, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3992] <... write resumed>)        = 4
[pid  3991] write(-1, NULL, 0 <unfinished ...>
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3992] close(3 <unfinished ...>
[pid  3991] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] <... openat resumed>)       = 3
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3992] <... close resumed>)        = 0
[pid  3991] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3992] mkdir("./file0", 0777 <unfinished ...>
[pid  3991] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3992] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3991] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3620] close(3 <unfinished ...>
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3992] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3618] close(3 <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3618] <... close resumed>)        = 0
[pid  3617] close(3 <unfinished ...>
[pid  3992] pipe2( <unfinished ...>
[pid  3620] <... close resumed>)        = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3992] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3992] write(-1, NULL, 0 <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 3993
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3995
[pid  3992] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 3994
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 3994 attached
 <unfinished ...>
[pid  3994] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3992] write(-1, NULL, 0 <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
[pid  3994] <... prctl resumed>)        = 0
[pid  3994] setpgid(0, 0)               = 0
[pid  3992] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3994] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3994] write(3, "1000", 4)         = 4
[pid  3992] write(-1, NULL, 0 <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3992] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3616] close(3 <unfinished ...>
[pid  3992] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3616] <... close resumed>)        = 0
[pid  3992] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3994] close(3)                    = 0
[pid  3994] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3994] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3994] pipe2([3, 4], 0)            = 0
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 3996
[pid  3994] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3994] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3994] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3994] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3994] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3995 attached
 <unfinished ...>
[pid  3995] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3995] setpgid(0, 0)               = 0
[pid  3995] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3995] write(3, "1000", 4)         = 4
[pid  3995] close(3)                    = 0
[pid  3995] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3995] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3995] pipe2([3, 4], 0)            = 0
[pid  3995] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3995] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3995] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3995] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3995] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3991] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3991] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3991] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  3991] exit_group(0)               = ?
[pid  3991] +++ exited with 0 +++
./strace-static-x86_64: Process 3993 attached
[pid  3993] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3993] setpgid(0, 0)               = 0
[pid  3993] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3993] write(3, "1000", 4)         = 4
[pid  3993] close(3)                    = 0
[pid  3993] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3993] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3993] pipe2([3, 4], 0)            = 0
[pid  3993] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3993] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3993] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3993] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3993] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3991, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR./strace-static-x86_64: Process 3996 attached
) = 3
[pid  3996] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3996] <... prctl resumed>)        = 0
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3996] setpgid(0, 0 <unfinished ...>
[pid  3619] close(3 <unfinished ...>
[pid  3996] <... setpgid resumed>)      = 0
[pid  3619] <... close resumed>)        = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 3997
[pid  3996] <... openat resumed>)       = 3
[pid  3996] write(3, "1000", 4)         = 4
[pid  3996] close(3)                    = 0
[pid  3996] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3996] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3996] pipe2([3, 4], 0)            = 0
[pid  3996] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3996] write(-1, NULL, 0 <unfinished ...>
[pid  3992] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3996] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3996] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3996] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3996] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3994] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3992] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3994] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3992] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3995] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3994] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3992] fdatasync(-1./strace-static-x86_64: Process 3997 attached
 <unfinished ...>
[pid  3995] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3994] fdatasync(-1 <unfinished ...>
[pid  3992] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3997] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3995] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3994] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3997] <... prctl resumed>)        = 0
[pid  3995] fdatasync(-1 <unfinished ...>
[pid  3994] exit_group(0 <unfinished ...>
[pid  3992] exit_group(0 <unfinished ...>
[pid  3997] setpgid(0, 0 <unfinished ...>
[pid  3995] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3994] <... exit_group resumed>)   = ?
[pid  3992] <... exit_group resumed>)   = ?
[pid  3997] <... setpgid resumed>)      = 0
[pid  3995] exit_group(0 <unfinished ...>
[pid  3994] +++ exited with 0 +++
[pid  3997] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3995] <... exit_group resumed>)   = ?
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3994, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3997] <... openat resumed>)       = 3
[pid  3992] +++ exited with 0 +++
[pid  3997] write(3, "1000", 4)         = 4
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3992, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3997] close(3 <unfinished ...>
[pid  3622] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3997] <... close resumed>)        = 0
[pid  3995] +++ exited with 0 +++
[pid  3997] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3995, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3997] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3622] <... restart_syscall resumed>) = 0
[pid  3997] pipe2( <unfinished ...>
[pid  3617] <... restart_syscall resumed>) = 0
[pid  3997] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3997] write(-1, NULL, 0 <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3997] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... openat resumed>)       = 3
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3997] write(-1, NULL, 0 <unfinished ...>
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  3997] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3997] write(-1, NULL, 0 <unfinished ...>
[pid  3622] close(3 <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3997] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... close resumed>)        = 0
[pid  3617] close(3 <unfinished ...>
[pid  3997] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  3997] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3997] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 3998
[pid  3620] <... openat resumed>)       = 3
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 3999
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3620] close(3)                    = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 3998 attached
 <unfinished ...>
[pid  3998] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 4000
[pid  3998] setpgid(0, 0)               = 0
[pid  3998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3998] write(3, "1000", 4)         = 4
[pid  3998] close(3)                    = 0
[pid  3998] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  3998] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3998] pipe2([3, 4], 0)            = 0
[pid  3998] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3998] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3998] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3998] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3998] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 4000 attached
 <unfinished ...>
[pid  4000] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4000] setpgid(0, 0)               = 0
[pid  4000] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4000] write(3, "1000", 4)         = 4
[pid  4000] close(3)                    = 0
[pid  4000] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  4000] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4000] pipe2([3, 4], 0)            = 0
[pid  4000] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4000] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4000] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4000] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  4000] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 3999 attached
 <unfinished ...>
[pid  3997] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3996] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3993] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3999] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3997] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3996] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3993] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3997] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3996] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3993] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3999] <... prctl resumed>)        = 0
[pid  3999] setpgid(0, 0 <unfinished ...>
[pid  3997] fdatasync(-1 <unfinished ...>
[pid  3996] fdatasync(-1 <unfinished ...>
[pid  3993] fdatasync(-1 <unfinished ...>
[pid  3999] <... setpgid resumed>)      = 0
[pid  3998] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3997] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3996] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3993] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3999] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3998] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3997] exit_group(0 <unfinished ...>
[pid  3996] exit_group(0 <unfinished ...>
[pid  3993] exit_group(0 <unfinished ...>
[pid  3999] <... openat resumed>)       = 3
[pid  3998] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3997] <... exit_group resumed>)   = ?
[pid  3996] <... exit_group resumed>)   = ?
[pid  3993] <... exit_group resumed>)   = ?
[pid  3999] write(3, "1000", 4 <unfinished ...>
[pid  3998] fdatasync(-1 <unfinished ...>
[pid  3997] +++ exited with 0 +++
[pid  3996] +++ exited with 0 +++
[pid  3993] +++ exited with 0 +++
[pid  4000] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3999] <... write resumed>)        = 4
[pid  3998] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3993, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  4000] openat(AT_FDCWD, NULL, O_RDONLY) = -1 EFAULT (Bad address)
[pid  3999] close(3 <unfinished ...>
[pid  3998] exit_group(0 <unfinished ...>
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3997, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3996, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  4000] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  4000] exit_group(0 <unfinished ...>
[pid  3999] <... close resumed>)        = 0
[pid  3998] <... exit_group resumed>)   = ?
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  4000] <... exit_group resumed>)   = ?
[pid  4000] +++ exited with 0 +++
[pid  3999] mkdir("./file0", 0777 <unfinished ...>
[pid  3998] +++ exited with 0 +++
[pid  3619] <... openat resumed>)       = 3
[pid  3616] <... openat resumed>)       = 3
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3998, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR) = 3
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4000, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3999] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3618] close(3 <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3999] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3618] <... close resumed>)        = 0
[pid  3616] close(3 <unfinished ...>
[pid  3999] pipe2( <unfinished ...>
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3619] close(3 <unfinished ...>
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3999] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3620] <... openat resumed>)       = 3
[pid  3619] <... close resumed>)        = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3999] write(-1, NULL, 0 <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 4001
[pid  3999] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... openat resumed>)       = 3
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3999] write(-1, NULL, 0 <unfinished ...>
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3620] close(3 <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 4002
[pid  3999] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3620] <... close resumed>)        = 0
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 4003
[pid  3999] write(-1, NULL, 0 <unfinished ...>
[pid  3622] close(3 <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3999] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... close resumed>)        = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3999] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 4005
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 4004
./strace-static-x86_64: Process 4003 attached
./strace-static-x86_64: Process 4001 attached
[pid  3999] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 4002 attached
 <unfinished ...>
[pid  4002] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4002] setpgid(0, 0./strace-static-x86_64: Process 4004 attached
)               = 0
[pid  4004] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4002] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 4005 attached
 <unfinished ...>
[pid  4004] <... prctl resumed>)        = 0
[pid  4002] <... openat resumed>)       = 3
[pid  4005] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4004] setpgid(0, 0 <unfinished ...>
[pid  4002] write(3, "1000", 4 <unfinished ...>
[pid  4005] <... prctl resumed>)        = 0
[pid  4004] <... setpgid resumed>)      = 0
[pid  4002] <... write resumed>)        = 4
[pid  4005] setpgid(0, 0 <unfinished ...>
[pid  4004] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4002] close(3 <unfinished ...>
[pid  4005] <... setpgid resumed>)      = 0
[pid  4004] <... openat resumed>)       = 3
[pid  4002] <... close resumed>)        = 0
[pid  4005] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4004] write(3, "1000", 4 <unfinished ...>
[pid  4002] mkdir("./file0", 0777 <unfinished ...>
[pid  4005] <... openat resumed>)       = 3
[pid  4004] <... write resumed>)        = 4
[pid  4002] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4005] write(3, "1000", 4 <unfinished ...>
[pid  4004] close(3 <unfinished ...>
[pid  4002] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4005] <... write resumed>)        = 4
[pid  4004] <... close resumed>)        = 0
[pid  4002] pipe2( <unfinished ...>
[pid  3999] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4005] close(3 <unfinished ...>
[pid  4004] mkdir("./file0", 0777 <unfinished ...>
[pid  4003] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4002] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4001] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3999] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4005] <... close resumed>)        = 0
[pid  4004] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4003] <... prctl resumed>)        = 0
[pid  4002] write(-1, NULL, 0 <unfinished ...>
[pid  4001] <... prctl resumed>)        = 0
[pid  3999] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4005] mkdir("./file0", 0777 <unfinished ...>
[pid  4004] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4003] setpgid(0, 0 <unfinished ...>
[pid  4002] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4001] setpgid(0, 0 <unfinished ...>
[pid  3999] fdatasync(-1 <unfinished ...>
[pid  4005] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4004] pipe2( <unfinished ...>
[pid  4003] <... setpgid resumed>)      = 0
[pid  4002] write(-1, NULL, 0 <unfinished ...>
[pid  4001] <... setpgid resumed>)      = 0
[pid  3999] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4005] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4004] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4003] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4002] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4001] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3999] exit_group(0 <unfinished ...>
[pid  4005] pipe2( <unfinished ...>
[pid  4004] write(-1, NULL, 0 <unfinished ...>
[pid  4003] <... openat resumed>)       = 3
[pid  4002] write(-1, NULL, 0 <unfinished ...>
[pid  4001] <... openat resumed>)       = 3
[pid  3999] <... exit_group resumed>)   = ?
[pid  4005] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4004] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4003] write(3, "1000", 4 <unfinished ...>
[pid  4002] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4001] write(3, "1000", 4 <unfinished ...>
[pid  4005] write(-1, NULL, 0 <unfinished ...>
[pid  4004] write(-1, NULL, 0 <unfinished ...>
[pid  4003] <... write resumed>)        = 4
[pid  4002] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4001] <... write resumed>)        = 4
[pid  3999] +++ exited with 0 +++
[pid  4005] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4004] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4003] close(3 <unfinished ...>
[pid  4002] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4001] close(3 <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3999, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  4005] write(-1, NULL, 0 <unfinished ...>
[pid  4004] write(-1, NULL, 0 <unfinished ...>
[pid  4003] <... close resumed>)        = 0
[pid  4002] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4001] <... close resumed>)        = 0
[pid  4005] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4004] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4003] mkdir("./file0", 0777 <unfinished ...>
[pid  4001] mkdir("./file0", 0777 <unfinished ...>
[pid  4005] write(-1, NULL, 0 <unfinished ...>
[pid  4004] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4003] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4001] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  4005] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4004] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4003] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4001] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3617] <... openat resumed>)       = 3
[pid  4005] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4004] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4003] pipe2( <unfinished ...>
[pid  4001] pipe2( <unfinished ...>
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  4005] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4003] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4001] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4005] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4003] write(-1, NULL, 0 <unfinished ...>
[pid  4001] write(-1, NULL, 0 <unfinished ...>
[pid  3617] close(3 <unfinished ...>
[pid  4003] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4001] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] <... close resumed>)        = 0
[pid  4003] write(-1, NULL, 0 <unfinished ...>
[pid  4001] write(-1, NULL, 0 <unfinished ...>
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4003] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4001] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4003] write(-1, NULL, 0 <unfinished ...>
[pid  4001] write(-1, NULL, 0 <unfinished ...>
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 4006
[pid  4003] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4001] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4003] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4001] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4003] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4001] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4003] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4001] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 4006 attached
 <unfinished ...>
[pid  4006] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4006] setpgid(0, 0)               = 0
[pid  4006] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4006] write(3, "1000", 4)         = 4
[pid  4006] close(3 <unfinished ...>
[pid  4002] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4006] <... close resumed>)        = 0
[pid  4005] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4002] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4006] mkdir("./file0", 0777 <unfinished ...>
[pid  4005] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4002] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4006] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4005] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4002] fdatasync(-1 <unfinished ...>
[pid  4006] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4005] fdatasync(-1 <unfinished ...>
[pid  4006] pipe2( <unfinished ...>
[pid  4005] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4006] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4005] exit_group(0 <unfinished ...>
[pid  4006] write(-1, NULL, 0 <unfinished ...>
[pid  4005] <... exit_group resumed>)   = ?
[pid  4006] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4005] +++ exited with 0 +++
[pid  4006] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4005, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  4006] write(-1, NULL, 0 <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  4006] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... openat resumed>)       = 3
[pid  4006] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  4006] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4006] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4004] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4003] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4002] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4004] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4003] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4002] exit_group(0 <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 4007
[pid  4004] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4003] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4002] <... exit_group resumed>)   = ?
[pid  4004] fdatasync(-1 <unfinished ...>
[pid  4003] fdatasync(-1./strace-static-x86_64: Process 4007 attached
 <unfinished ...>
[pid  4002] +++ exited with 0 +++
[pid  4004] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4003] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4004] exit_group(0 <unfinished ...>
[pid  4003] exit_group(0 <unfinished ...>
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4002, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  4004] <... exit_group resumed>)   = ?
[pid  4003] <... exit_group resumed>)   = ?
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  4007] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4004] +++ exited with 0 +++
[pid  3616] <... openat resumed>)       = 3
[pid  4003] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4004, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4003, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3620] <... openat resumed>)       = 3
[pid  3616] close(3 <unfinished ...>
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3620] close(3 <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3620] <... close resumed>)        = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4007] <... prctl resumed>)        = 0
[pid  4007] setpgid(0, 0 <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 4008
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 4009
[pid  4007] <... setpgid resumed>)      = 0
[pid  3619] <... openat resumed>)       = 3
[pid  4007] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  4007] <... openat resumed>)       = 3
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4007] write(3, "1000", 4 <unfinished ...>
[pid  3619] close(3./strace-static-x86_64: Process 4009 attached
./strace-static-x86_64: Process 4008 attached
 <unfinished ...>
[pid  4007] <... write resumed>)        = 4
[pid  3619] <... close resumed>)        = 0
[pid  4007] close(3 <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4009] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4008] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4007] <... close resumed>)        = 0
[pid  4001] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4009] <... prctl resumed>)        = 0
[pid  4008] <... prctl resumed>)        = 0
[pid  4007] mkdir("./file0", 0777 <unfinished ...>
[pid  4001] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 4010
[pid  4009] setpgid(0, 0 <unfinished ...>
[pid  4008] setpgid(0, 0 <unfinished ...>
[pid  4007] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4001] <... openat resumed>)       = -1 EFAULT (Bad address)
./strace-static-x86_64: Process 4010 attached
[pid  4009] <... setpgid resumed>)      = 0
[pid  4008] <... setpgid resumed>)      = 0
[pid  4007] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4006] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4001] fdatasync(-1 <unfinished ...>
[pid  4010] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4009] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4008] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4007] pipe2( <unfinished ...>
[pid  4006] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4001] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4010] <... prctl resumed>)        = 0
[pid  4009] <... openat resumed>)       = 3
[pid  4008] <... openat resumed>)       = 3
[pid  4007] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4006] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4001] exit_group(0 <unfinished ...>
[pid  4010] setpgid(0, 0 <unfinished ...>
[pid  4009] write(3, "1000", 4 <unfinished ...>
[pid  4008] write(3, "1000", 4 <unfinished ...>
[pid  4007] write(-1, NULL, 0 <unfinished ...>
[pid  4006] fdatasync(-1 <unfinished ...>
[pid  4001] <... exit_group resumed>)   = ?
[pid  4010] <... setpgid resumed>)      = 0
[pid  4009] <... write resumed>)        = 4
[pid  4008] <... write resumed>)        = 4
[pid  4007] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4006] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4010] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4009] close(3 <unfinished ...>
[pid  4008] close(3 <unfinished ...>
[pid  4007] write(-1, NULL, 0 <unfinished ...>
[pid  4006] exit_group(0 <unfinished ...>
[pid  4001] +++ exited with 0 +++
[pid  4010] <... openat resumed>)       = 3
[pid  4009] <... close resumed>)        = 0
[pid  4008] <... close resumed>)        = 0
[pid  4007] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4006] <... exit_group resumed>)   = ?
[pid  4010] write(3, "1000", 4 <unfinished ...>
[pid  4009] mkdir("./file0", 0777 <unfinished ...>
[pid  4008] mkdir("./file0", 0777 <unfinished ...>
[pid  4007] write(-1, NULL, 0 <unfinished ...>
[pid  4006] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4001, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  4007] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4006, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  4007] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3618] <... restart_syscall resumed>) = 0
[pid  4007] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4010] <... write resumed>)        = 4
[pid  4009] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4008] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4007] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  4010] close(3 <unfinished ...>
[pid  4009] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4008] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4007] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  4010] <... close resumed>)        = 0
[pid  4009] pipe2( <unfinished ...>
[pid  4008] pipe2( <unfinished ...>
[pid  4007] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  4010] mkdir("./file0", 0777 <unfinished ...>
[pid  4009] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4008] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4007] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4010] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4009] write(-1, NULL, 0 <unfinished ...>
[pid  4008] write(-1, NULL, 0 <unfinished ...>
[pid  4007] fdatasync(-1 <unfinished ...>
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] close(3 <unfinished ...>
[pid  4010] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4009] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4008] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4007] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3618] close(3 <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  4010] pipe2( <unfinished ...>
[pid  4009] write(-1, NULL, 0 <unfinished ...>
[pid  4008] write(-1, NULL, 0 <unfinished ...>
[pid  4007] exit_group(0 <unfinished ...>
[pid  3618] <... close resumed>)        = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4010] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4009] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4008] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4007] <... exit_group resumed>)   = ?
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4010] write(-1, NULL, 0 <unfinished ...>
[pid  4009] write(-1, NULL, 0 <unfinished ...>
[pid  4008] write(-1, NULL, 0 <unfinished ...>
[pid  4007] +++ exited with 0 +++
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 4012
[pid  4010] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4009] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4008] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 4013
[pid  4010] write(-1, NULL, 0 <unfinished ...>
[pid  4009] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4008] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4007, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  4010] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4009] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4008] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  4010] write(-1, NULL, 0 <unfinished ...>
[pid  4009] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4008] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3622] <... restart_syscall resumed>) = 0
[pid  4010] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4010] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  4010] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... openat resumed>)       = 3
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  4010] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3622] close(3./strace-static-x86_64: Process 4013 attached
)                    = 0
[pid  4013] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4013] <... prctl resumed>)        = 0
./strace-static-x86_64: Process 4012 attached
[pid  4013] setpgid(0, 0 <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 4014
[pid  4013] <... setpgid resumed>)      = 0
[pid  4012] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4013] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4012] <... prctl resumed>)        = 0
[pid  4013] <... openat resumed>)       = 3
[pid  4012] setpgid(0, 0 <unfinished ...>
[pid  4013] write(3, "1000", 4 <unfinished ...>
[pid  4012] <... setpgid resumed>)      = 0
[pid  4013] <... write resumed>)        = 4
[pid  4012] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4013] close(3 <unfinished ...>
[pid  4012] <... openat resumed>)       = 3
[pid  4013] <... close resumed>)        = 0
[pid  4012] write(3, "1000", 4 <unfinished ...>
[pid  4013] mkdir("./file0", 0777 <unfinished ...>
[pid  4012] <... write resumed>)        = 4
[pid  4013] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4012] close(3 <unfinished ...>
[pid  4013] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4012] <... close resumed>)        = 0
[pid  4013] pipe2( <unfinished ...>
[pid  4012] mkdir("./file0", 0777 <unfinished ...>
[pid  4013] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4012] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4013] write(-1, NULL, 0 <unfinished ...>
[pid  4012] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4013] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4012] pipe2( <unfinished ...>
[pid  4013] write(-1, NULL, 0 <unfinished ...>
[pid  4012] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4013] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4012] write(-1, NULL, 0 <unfinished ...>
[pid  4008] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4013] write(-1, NULL, 0 <unfinished ...>
[pid  4012] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4010] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4008] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4013] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4012] write(-1, NULL, 0 <unfinished ...>
[pid  4010] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4009] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4008] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4013] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4012] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4010] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4009] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4008] fdatasync(-1 <unfinished ...>
[pid  4013] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4012] write(-1, NULL, 0 <unfinished ...>
[pid  4010] fdatasync(-1 <unfinished ...>
[pid  4009] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4008] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4013] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4012] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4010] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4009] fdatasync(-1 <unfinished ...>
[pid  4008] exit_group(0./strace-static-x86_64: Process 4014 attached
 <unfinished ...>
[pid  4012] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4010] exit_group(0 <unfinished ...>
[pid  4009] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4008] <... exit_group resumed>)   = ?
[pid  4012] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4010] <... exit_group resumed>)   = ?
[pid  4009] exit_group(0 <unfinished ...>
[pid  4012] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4009] <... exit_group resumed>)   = ?
[pid  4008] +++ exited with 0 +++
[pid  4010] +++ exited with 0 +++
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4010, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3619] restart_syscall(<... resuming interrupted clone ...>) = 0
[pid  4009] +++ exited with 0 +++
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  4014] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4009, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] <... openat resumed>)       = 3
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4008, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  4014] <... prctl resumed>)        = 0
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  4014] setpgid(0, 0 <unfinished ...>
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4014] <... setpgid resumed>)      = 0
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3619] close(3 <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
[pid  4014] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  3620] <... openat resumed>)       = 3
[pid  3619] <... close resumed>)        = 0
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  4014] <... openat resumed>)       = 3
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
./strace-static-x86_64: Process 4015 attached
[pid  4014] write(3, "1000", 4 <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3616] close(3 <unfinished ...>
[pid  4014] <... write resumed>)        = 4
[pid  3620] close(3 <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 4015
[pid  4014] close(3 <unfinished ...>
[pid  3620] <... close resumed>)        = 0
[pid  3616] <... close resumed>)        = 0
[pid  4014] <... close resumed>)        = 0
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4014] mkdir("./file0", 0777./strace-static-x86_64: Process 4016 attached
 <unfinished ...>
[pid  4015] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4014] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 4016
[pid  4016] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4015] <... prctl resumed>)        = 0
[pid  4014] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 4017
[pid  4016] <... prctl resumed>)        = 0
[pid  4015] setpgid(0, 0 <unfinished ...>
[pid  4014] pipe2( <unfinished ...>
[pid  4016] setpgid(0, 0 <unfinished ...>
[pid  4015] <... setpgid resumed>)      = 0
[pid  4014] <... pipe2 resumed>[3, 4], 0) = 0
./strace-static-x86_64: Process 4017 attached
[pid  4017] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4014] write(-1, NULL, 0 <unfinished ...>
[pid  4016] <... setpgid resumed>)      = 0
[pid  4015] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4014] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4014] write(-1, NULL, 0 <unfinished ...>
[pid  4016] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4015] <... openat resumed>)       = 3
[pid  4014] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4016] <... openat resumed>)       = 3
[pid  4015] write(3, "1000", 4 <unfinished ...>
[pid  4014] write(-1, NULL, 0 <unfinished ...>
[pid  4016] write(3, "1000", 4 <unfinished ...>
[pid  4015] <... write resumed>)        = 4
[pid  4014] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4016] <... write resumed>)        = 4
[pid  4015] close(3 <unfinished ...>
[pid  4014] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4016] close(3 <unfinished ...>
[pid  4015] <... close resumed>)        = 0
[pid  4014] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4016] <... close resumed>)        = 0
[pid  4017] setpgid(0, 0 <unfinished ...>
[pid  4016] mkdir("./file0", 0777 <unfinished ...>
[pid  4015] mkdir("./file0", 0777 <unfinished ...>
[pid  4014] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4017] <... setpgid resumed>)      = 0
[pid  4016] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4015] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4016] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4015] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4016] pipe2( <unfinished ...>
[pid  4015] pipe2( <unfinished ...>
[pid  4016] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4015] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4016] write(-1, NULL, 0 <unfinished ...>
[pid  4015] write(-1, NULL, 0 <unfinished ...>
[pid  4016] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4015] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4016] write(-1, NULL, 0 <unfinished ...>
[pid  4015] write(-1, NULL, 0 <unfinished ...>
[pid  4016] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4015] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4016] write(-1, NULL, 0 <unfinished ...>
[pid  4015] write(-1, NULL, 0 <unfinished ...>
[pid  4016] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4015] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4016] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4015] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4016] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4015] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4016] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4015] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4017] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4013] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4012] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4017] <... openat resumed>)       = 3
[pid  4013] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4012] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4017] write(3, "1000", 4 <unfinished ...>
[pid  4013] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4012] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4017] <... write resumed>)        = 4
[pid  4013] fdatasync(-1 <unfinished ...>
[pid  4012] fdatasync(-1 <unfinished ...>
[pid  4017] close(3 <unfinished ...>
[pid  4014] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4013] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4012] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4017] <... close resumed>)        = 0
[pid  4014] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4013] exit_group(0 <unfinished ...>
[pid  4012] exit_group(0 <unfinished ...>
[pid  4017] mkdir("./file0", 0777 <unfinished ...>
[pid  4014] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4013] <... exit_group resumed>)   = ?
[pid  4012] <... exit_group resumed>)   = ?
[pid  4017] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4014] fdatasync(-1 <unfinished ...>
[pid  4013] +++ exited with 0 +++
[pid  4012] +++ exited with 0 +++
[pid  4017] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4014] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4013, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4012, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  4017] pipe2( <unfinished ...>
[pid  4015] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4014] exit_group(0 <unfinished ...>
[pid  3618] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3617] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  4017] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4016] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4015] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4014] <... exit_group resumed>)   = ?
[pid  3618] <... restart_syscall resumed>) = 0
[pid  3617] <... restart_syscall resumed>) = 0
[pid  4017] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4016] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4015] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4014] +++ exited with 0 +++
[pid  4017] write(-1, NULL, 0 <unfinished ...>
[pid  4016] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4015] fdatasync(-1 <unfinished ...>
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4014, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  4017] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4016] fdatasync(-1 <unfinished ...>
[pid  4015] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3622] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  3617] <... openat resumed>)       = 3
[pid  4017] write(-1, NULL, 0 <unfinished ...>
[pid  4016] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4015] exit_group(0 <unfinished ...>
[pid  3622] <... restart_syscall resumed>) = 0
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  4017] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4016] exit_group(0 <unfinished ...>
[pid  4015] <... exit_group resumed>)   = ?
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4017] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4016] <... exit_group resumed>)   = ?
[pid  3618] close(3 <unfinished ...>
[pid  3617] close(3 <unfinished ...>
[pid  4017] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4015] +++ exited with 0 +++
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  3618] <... close resumed>)        = 0
[pid  3617] <... close resumed>)        = 0
[pid  4017] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4016] +++ exited with 0 +++
[pid  3622] <... openat resumed>)       = 3
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4015, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4019 attached
./strace-static-x86_64: Process 4018 attached
 <unfinished ...>
[pid  4017] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4016, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  4019] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4018] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4017] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 4018
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 4019
[pid  4019] <... prctl resumed>)        = 0
[pid  4018] <... prctl resumed>)        = 0
[pid  4017] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3622] close(3 <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  4019] setpgid(0, 0 <unfinished ...>
[pid  4018] setpgid(0, 0 <unfinished ...>
[pid  4017] fdatasync(-1 <unfinished ...>
[pid  3622] <... close resumed>)        = 0
[pid  3619] <... openat resumed>)       = 3
[pid  4019] <... setpgid resumed>)      = 0
[pid  4018] <... setpgid resumed>)      = 0
[pid  4017] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  4019] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4018] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4017] exit_group(0 <unfinished ...>
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4019] <... openat resumed>)       = 3
[pid  4018] <... openat resumed>)       = 3
[pid  4017] <... exit_group resumed>)   = ?
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 4020
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3619] close(3./strace-static-x86_64: Process 4020 attached
 <unfinished ...>
[pid  4019] write(3, "1000", 4 <unfinished ...>
[pid  4018] write(3, "1000", 4 <unfinished ...>
[pid  4017] +++ exited with 0 +++
[pid  3620] <... openat resumed>)       = 3
[pid  3619] <... close resumed>)        = 0
[pid  4019] <... write resumed>)        = 4
[pid  4018] <... write resumed>)        = 4
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4017, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  4020] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4019] close(3 <unfinished ...>
[pid  4018] close(3 <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4020] <... prctl resumed>)        = 0
[pid  4019] <... close resumed>)        = 0
[pid  4018] <... close resumed>)        = 0
[pid  3620] close(3 <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 4021
[pid  4020] setpgid(0, 0 <unfinished ...>
[pid  4019] mkdir("./file0", 0777 <unfinished ...>
[pid  4018] mkdir("./file0", 0777 <unfinished ...>
[pid  3620] <... close resumed>)        = 0
[pid  4020] <... setpgid resumed>)      = 0
[pid  4019] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4018] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4020] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4019] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4018] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4020] <... openat resumed>)       = 3
[pid  4019] pipe2( <unfinished ...>
[pid  4018] pipe2(./strace-static-x86_64: Process 4021 attached
 <unfinished ...>
[pid  4020] write(3, "1000", 4 <unfinished ...>
[pid  4019] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4018] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 4022
[pid  4021] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4020] <... write resumed>)        = 4
[pid  4019] write(-1, NULL, 0 <unfinished ...>
[pid  4018] write(-1, NULL, 0 <unfinished ...>
[pid  4021] <... prctl resumed>)        = 0
[pid  4020] close(3 <unfinished ...>
[pid  4019] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4018] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 4022 attached
 <unfinished ...>
[pid  4021] setpgid(0, 0 <unfinished ...>
[pid  4020] <... close resumed>)        = 0
[pid  4019] write(-1, NULL, 0 <unfinished ...>
[pid  4018] write(-1, NULL, 0 <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
[pid  4022] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4021] <... setpgid resumed>)      = 0
[pid  4020] mkdir("./file0", 0777 <unfinished ...>
[pid  4019] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4018] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  4022] <... prctl resumed>)        = 0
[pid  4021] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4020] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4019] write(-1, NULL, 0 <unfinished ...>
[pid  4018] write(-1, NULL, 0 <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4022] setpgid(0, 0 <unfinished ...>
[pid  4021] <... openat resumed>)       = 3
[pid  4020] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4019] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4018] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3616] close(3 <unfinished ...>
[pid  4022] <... setpgid resumed>)      = 0
[pid  4021] write(3, "1000", 4 <unfinished ...>
[pid  4020] pipe2( <unfinished ...>
[pid  4019] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4018] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  4022] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4021] <... write resumed>)        = 4
[pid  4020] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4019] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4018] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4022] <... openat resumed>)       = 3
[pid  4021] close(3 <unfinished ...>
[pid  4020] write(-1, NULL, 0 <unfinished ...>
[pid  4019] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4018] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 4023 attached
 <unfinished ...>
[pid  4022] write(3, "1000", 4 <unfinished ...>
[pid  4021] <... close resumed>)        = 0
[pid  4020] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4019] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4023] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4022] <... write resumed>)        = 4
[pid  4021] mkdir("./file0", 0777 <unfinished ...>
[pid  4020] write(-1, NULL, 0 <unfinished ...>
[pid  4019] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4018] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 4023
[pid  4023] <... prctl resumed>)        = 0
[pid  4022] close(3 <unfinished ...>
[pid  4021] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4020] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4019] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4018] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4023] setpgid(0, 0 <unfinished ...>
[pid  4022] <... close resumed>)        = 0
[pid  4021] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4020] write(-1, NULL, 0 <unfinished ...>
[pid  4019] fdatasync(-1 <unfinished ...>
[pid  4018] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4023] <... setpgid resumed>)      = 0
[pid  4022] mkdir("./file0", 0777 <unfinished ...>
[pid  4021] pipe2( <unfinished ...>
[pid  4020] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4019] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4018] fdatasync(-1 <unfinished ...>
[pid  4019] exit_group(0 <unfinished ...>
[pid  4018] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4019] <... exit_group resumed>)   = ?
[pid  4018] exit_group(0 <unfinished ...>
[pid  4023] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4022] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4021] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4020] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4019] +++ exited with 0 +++
[pid  4018] <... exit_group resumed>)   = ?
[pid  4023] <... openat resumed>)       = 3
[pid  4022] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4021] write(-1, NULL, 0 <unfinished ...>
[pid  4020] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4018] +++ exited with 0 +++
[pid  4023] write(3, "1000", 4 <unfinished ...>
[pid  4022] pipe2( <unfinished ...>
[pid  4021] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4020] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4018, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4019, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  4023] <... write resumed>)        = 4
[pid  4022] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4021] write(-1, NULL, 0 <unfinished ...>
[pid  3618] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3617] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  4023] close(3 <unfinished ...>
[pid  4022] write(-1, NULL, 0 <unfinished ...>
[pid  4021] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3618] <... restart_syscall resumed>) = 0
[pid  3617] <... restart_syscall resumed>) = 0
[pid  4023] <... close resumed>)        = 0
[pid  4022] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4021] write(-1, NULL, 0 <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  3617] <... openat resumed>)       = 3
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3618] close(3 <unfinished ...>
[pid  3617] close(3 <unfinished ...>
[pid  3618] <... close resumed>)        = 0
[pid  3617] <... close resumed>)        = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 4024
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 4025
[pid  4021] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4023] mkdir("./file0", 0777 <unfinished ...>
[pid  4022] write(-1, NULL, 0 <unfinished ...>
[pid  4021] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  4023] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4022] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4023] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4022] write(-1, NULL, 0 <unfinished ...>
[pid  4021] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4023] pipe2( <unfinished ...>
[pid  4022] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4023] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4022] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4023] write(-1, NULL, 0 <unfinished ...>
[pid  4022] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4023] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4023] write(-1, NULL, 0 <unfinished ...>
[pid  4022] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4023] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4023] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4023] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  4023] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 4024 attached
 <unfinished ...>
[pid  4024] prctl(PR_SET_PDEATHSIG, SIGKILL./strace-static-x86_64: Process 4025 attached
) = 0
[pid  4024] setpgid(0, 0 <unfinished ...>
[pid  4025] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4024] <... setpgid resumed>)      = 0
[pid  4025] <... prctl resumed>)        = 0
[pid  4024] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4025] setpgid(0, 0 <unfinished ...>
[pid  4024] <... openat resumed>)       = 3
[pid  4025] <... setpgid resumed>)      = 0
[pid  4024] write(3, "1000", 4)         = 4
[pid  4025] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4024] close(3 <unfinished ...>
[pid  4025] <... openat resumed>)       = 3
[pid  4024] <... close resumed>)        = 0
[pid  4025] write(3, "1000", 4 <unfinished ...>
[pid  4024] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  4024] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4020] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4024] pipe2([3, 4], 0)            = 0
[pid  4024] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4024] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4020] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4024] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4020] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4024] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4020] fdatasync(-1 <unfinished ...>
[pid  4024] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4024] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4020] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4025] <... write resumed>)        = 4
[pid  4025] close(3 <unfinished ...>
[pid  4023] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4020] exit_group(0 <unfinished ...>
[pid  4025] <... close resumed>)        = 0
[pid  4023] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4020] <... exit_group resumed>)   = ?
[pid  4025] mkdir("./file0", 0777 <unfinished ...>
[pid  4020] +++ exited with 0 +++
[pid  4025] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4023] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4020, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  4025] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4023] fdatasync(-1 <unfinished ...>
[pid  3622] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  4025] pipe2( <unfinished ...>
[pid  4023] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3622] <... restart_syscall resumed>) = 0
[pid  4025] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4023] exit_group(0 <unfinished ...>
[pid  4025] write(-1, NULL, 0 <unfinished ...>
[pid  4023] <... exit_group resumed>)   = ?
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4025] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 4026
[pid  4025] write(-1, NULL, 0 <unfinished ...>
[pid  4023] +++ exited with 0 +++
[pid  4025] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4023, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  4025] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4025] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  4021] <... mount resumed>)        = -1 EFAULT (Bad address)
./strace-static-x86_64: Process 4026 attached
[pid  4025] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4022] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4021] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4024] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4022] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4021] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4024] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4021] fdatasync(-1 <unfinished ...>
[pid  4024] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4022] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4021] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4024] fdatasync(-1 <unfinished ...>
[pid  4022] fdatasync(-1 <unfinished ...>
[pid  4021] exit_group(0 <unfinished ...>
[pid  4024] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4022] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4021] <... exit_group resumed>)   = ?
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  4024] exit_group(0 <unfinished ...>
[pid  4022] exit_group(0 <unfinished ...>
[pid  4021] +++ exited with 0 +++
[pid  4024] <... exit_group resumed>)   = ?
[pid  4022] <... exit_group resumed>)   = ?
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4021, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3616] <... openat resumed>)       = 3
[pid  4024] +++ exited with 0 +++
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4024, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3618] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  4022] +++ exited with 0 +++
[pid  3619] <... openat resumed>)       = 3
[pid  3618] <... restart_syscall resumed>) = 0
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  4025] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4022, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  4026] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4025] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4026] <... prctl resumed>)        = 0
[pid  4025] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3619] close(3 <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3616] close(3 <unfinished ...>
[pid  4026] setpgid(0, 0 <unfinished ...>
[pid  4025] fdatasync(-1 <unfinished ...>
[pid  3619] <... close resumed>)        = 0
[pid  3618] <... openat resumed>)       = 3
[pid  4026] <... setpgid resumed>)      = 0
[pid  4025] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  4026] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4025] exit_group(0 <unfinished ...>
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4026] <... openat resumed>)       = 3
[pid  4025] <... exit_group resumed>)   = ?
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 4027
[pid  3618] close(3 <unfinished ...>
[pid  3620] <... openat resumed>)       = 3
[pid  3618] <... close resumed>)        = 0
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4027 attached
 <unfinished ...>
[pid  4026] write(3, "1000", 4 <unfinished ...>
[pid  4025] +++ exited with 0 +++
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 4028
[pid  4027] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4026] <... write resumed>)        = 4
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 4029
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4025, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  4027] <... prctl resumed>)        = 0
[pid  4026] close(3 <unfinished ...>
[pid  3620] close(3 <unfinished ...>
[pid  3617] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  4027] setpgid(0, 0 <unfinished ...>
[pid  4026] <... close resumed>)        = 0
[pid  3620] <... close resumed>)        = 0
[pid  3617] <... restart_syscall resumed>) = 0
[pid  4027] <... setpgid resumed>)      = 0
[pid  4026] mkdir("./file0", 0777 <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4027] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4026] <... mkdir resumed>)        = -1 EEXIST (File exists)
./strace-static-x86_64: Process 4028 attached
[pid  4027] <... openat resumed>)       = 3
[pid  4026] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  4028] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4027] write(3, "1000", 4 <unfinished ...>
[pid  4026] pipe2( <unfinished ...>
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 4030
[pid  3617] <... openat resumed>)       = 3
./strace-static-x86_64: Process 4029 attached
[pid  4028] <... prctl resumed>)        = 0
[pid  4027] <... write resumed>)        = 4
[pid  4026] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3617] ioctl(3, LOOP_CLR_FD./strace-static-x86_64: Process 4030 attached
 <unfinished ...>
[pid  4029] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4028] setpgid(0, 0 <unfinished ...>
[pid  4027] close(3 <unfinished ...>
[pid  4026] write(-1, NULL, 0 <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4029] <... prctl resumed>)        = 0
[pid  4028] <... setpgid resumed>)      = 0
[pid  4027] <... close resumed>)        = 0
[pid  4026] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] close(3 <unfinished ...>
[pid  4030] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4029] setpgid(0, 0 <unfinished ...>
[pid  4028] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4027] mkdir("./file0", 0777 <unfinished ...>
[pid  4026] write(-1, NULL, 0 <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  4030] <... prctl resumed>)        = 0
[pid  4029] <... setpgid resumed>)      = 0
[pid  4028] <... openat resumed>)       = 3
[pid  4027] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4026] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4030] setpgid(0, 0 <unfinished ...>
[pid  4029] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4028] write(3, "1000", 4 <unfinished ...>
[pid  4027] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4026] write(-1, NULL, 0 <unfinished ...>
[pid  4030] <... setpgid resumed>)      = 0
[pid  4029] <... openat resumed>)       = 3
[pid  4028] <... write resumed>)        = 4
[pid  4027] pipe2( <unfinished ...>
[pid  4026] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 4031
[pid  4030] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4029] write(3, "1000", 4 <unfinished ...>
[pid  4028] close(3 <unfinished ...>
[pid  4027] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4026] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4030] <... openat resumed>)       = 3
[pid  4029] <... write resumed>)        = 4
[pid  4028] <... close resumed>)        = 0
[pid  4027] write(-1, NULL, 0 <unfinished ...>
[pid  4026] <... write resumed>)        = -1 EBADF (Bad file descriptor)
./strace-static-x86_64: Process 4031 attached
[pid  4030] write(3, "1000", 4 <unfinished ...>
[pid  4029] close(3 <unfinished ...>
[pid  4028] mkdir("./file0", 0777 <unfinished ...>
[pid  4027] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4026] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4031] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4030] <... write resumed>)        = 4
[pid  4029] <... close resumed>)        = 0
[pid  4028] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4027] write(-1, NULL, 0 <unfinished ...>
[pid  4030] close(3 <unfinished ...>
[pid  4029] mkdir("./file0", 0777 <unfinished ...>
[pid  4028] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4027] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4029] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4028] pipe2( <unfinished ...>
[pid  4030] <... close resumed>)        = 0
[pid  4029] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4028] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4027] write(-1, NULL, 0 <unfinished ...>
[pid  4031] <... prctl resumed>)        = 0
[pid  4030] mkdir("./file0", 0777 <unfinished ...>
[pid  4029] pipe2( <unfinished ...>
[pid  4028] write(-1, NULL, 0 <unfinished ...>
[pid  4027] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4029] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4028] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4029] write(-1, NULL, 0 <unfinished ...>
[pid  4028] write(-1, NULL, 0 <unfinished ...>
[pid  4029] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4028] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4029] write(-1, NULL, 0 <unfinished ...>
[pid  4028] write(-1, NULL, 0 <unfinished ...>
[pid  4029] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4028] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4029] write(-1, NULL, 0 <unfinished ...>
[pid  4028] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4029] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4028] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4029] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4028] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4029] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4029] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4030] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4027] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4031] setpgid(0, 0 <unfinished ...>
[pid  4030] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4027] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4031] <... setpgid resumed>)      = 0
[pid  4030] pipe2( <unfinished ...>
[pid  4027] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4030] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4031] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4030] write(-1, NULL, 0 <unfinished ...>
[pid  4031] <... openat resumed>)       = 3
[pid  4030] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4031] write(3, "1000", 4 <unfinished ...>
[pid  4030] write(-1, NULL, 0 <unfinished ...>
[pid  4031] <... write resumed>)        = 4
[pid  4030] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4031] close(3 <unfinished ...>
[pid  4030] write(-1, NULL, 0 <unfinished ...>
[pid  4031] <... close resumed>)        = 0
[pid  4030] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4031] mkdir("./file0", 0777 <unfinished ...>
[pid  4030] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4031] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4030] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4031] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4030] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4026] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4031] pipe2( <unfinished ...>
[pid  4026] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4031] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4028] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4027] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4026] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4029] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4028] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4031] write(-1, NULL, 0 <unfinished ...>
[pid  4029] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4028] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4027] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4026] fdatasync(-1 <unfinished ...>
[pid  4031] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4029] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4028] fdatasync(-1 <unfinished ...>
[pid  4027] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4026] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4031] write(-1, NULL, 0 <unfinished ...>
[pid  4029] fdatasync(-1 <unfinished ...>
[pid  4028] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4031] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4029] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4028] exit_group(0 <unfinished ...>
[pid  4027] fdatasync(-1 <unfinished ...>
[pid  4026] exit_group(0 <unfinished ...>
[pid  4031] write(-1, NULL, 0 <unfinished ...>
[pid  4030] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4029] exit_group(0 <unfinished ...>
[pid  4028] <... exit_group resumed>)   = ?
[pid  4027] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4026] <... exit_group resumed>)   = ?
[pid  4031] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4030] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4029] <... exit_group resumed>)   = ?
[pid  4028] +++ exited with 0 +++
[pid  4026] +++ exited with 0 +++
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4028, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4026, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  4029] +++ exited with 0 +++
[pid  4027] exit_group(0 <unfinished ...>
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  4031] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4030] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4027] <... exit_group resumed>)   = ?
[pid  3622] <... openat resumed>)       = 3
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4029, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  4031] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4030] fdatasync(-1 <unfinished ...>
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  4031] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4030] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4027] +++ exited with 0 +++
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4030] exit_group(0 <unfinished ...>
[pid  3622] close(3 <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  4030] <... exit_group resumed>)   = ?
[pid  3622] <... close resumed>)        = 0
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4027, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] <... openat resumed>)       = 3
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3619] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR./strace-static-x86_64: Process 4032 attached
 <unfinished ...>
[pid  4030] +++ exited with 0 +++
[pid  3619] <... restart_syscall resumed>) = 0
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4032] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 4032
[pid  3618] close(3 <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
[pid  4032] <... prctl resumed>)        = 0
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4030, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3618] <... close resumed>)        = 0
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  4032] setpgid(0, 0 <unfinished ...>
[pid  4031] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4033 attached
 <unfinished ...>
[pid  4032] <... setpgid resumed>)      = 0
[pid  4031] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  3620] <... openat resumed>)       = 3
[pid  3619] <... openat resumed>)       = 3
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4033] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4032] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4031] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 4033
[pid  3616] close(3 <unfinished ...>
[pid  4033] <... prctl resumed>)        = 0
[pid  4032] <... openat resumed>)       = 3
[pid  4031] fdatasync(-1 <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4033] setpgid(0, 0 <unfinished ...>
[pid  4032] write(3, "1000", 4 <unfinished ...>
[pid  4031] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3620] close(3 <unfinished ...>
[pid  3619] close(3 <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  4033] <... setpgid resumed>)      = 0
[pid  4032] <... write resumed>)        = 4
[pid  4031] exit_group(0 <unfinished ...>
[pid  3620] <... close resumed>)        = 0
[pid  3619] <... close resumed>)        = 0
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4033] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4032] close(3 <unfinished ...>
[pid  4031] <... exit_group resumed>)   = ?
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 4036
./strace-static-x86_64: Process 4036 attached
./strace-static-x86_64: Process 4034 attached
[pid  4033] <... openat resumed>)       = 3
[pid  4032] <... close resumed>)        = 0
[pid  4031] +++ exited with 0 +++
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 4035
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 4034
[pid  4036] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4033] write(3, "1000", 4 <unfinished ...>
[pid  4032] mkdir("./file0", 0777 <unfinished ...>
[pid  4034] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4036] <... prctl resumed>)        = 0
[pid  4034] <... prctl resumed>)        = 0
[pid  4033] <... write resumed>)        = 4
[pid  4032] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4031, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  4036] setpgid(0, 0 <unfinished ...>
[pid  4034] setpgid(0, 0 <unfinished ...>
[pid  4033] close(3 <unfinished ...>
[pid  4032] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3617] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  4036] <... setpgid resumed>)      = 0
[pid  4034] <... setpgid resumed>)      = 0
[pid  4033] <... close resumed>)        = 0
[pid  4032] pipe2( <unfinished ...>
[pid  3617] <... restart_syscall resumed>) = 0
[pid  4036] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4034] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4033] mkdir("./file0", 0777 <unfinished ...>
[pid  4032] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4036] <... openat resumed>)       = 3
[pid  4034] <... openat resumed>)       = 3
[pid  4033] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4032] write(-1, NULL, 0./strace-static-x86_64: Process 4035 attached
 <unfinished ...>
[pid  4036] write(3, "1000", 4 <unfinished ...>
[pid  4034] write(3, "1000", 4 <unfinished ...>
[pid  4033] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4032] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  4036] <... write resumed>)        = 4
[pid  4035] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4034] <... write resumed>)        = 4
[pid  4033] pipe2( <unfinished ...>
[pid  4032] write(-1, NULL, 0 <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  4036] close(3 <unfinished ...>
[pid  4035] <... prctl resumed>)        = 0
[pid  4034] close(3 <unfinished ...>
[pid  4033] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4032] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  4036] <... close resumed>)        = 0
[pid  4035] setpgid(0, 0 <unfinished ...>
[pid  4034] <... close resumed>)        = 0
[pid  4033] write(-1, NULL, 0 <unfinished ...>
[pid  4032] write(-1, NULL, 0 <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4036] mkdir("./file0", 0777 <unfinished ...>
[pid  4035] <... setpgid resumed>)      = 0
[pid  4034] mkdir("./file0", 0777 <unfinished ...>
[pid  4033] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4032] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] close(3 <unfinished ...>
[pid  4036] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4035] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4034] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4033] write(-1, NULL, 0 <unfinished ...>
[pid  4032] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  4036] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4035] <... openat resumed>)       = 3
[pid  4034] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4033] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4032] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4037 attached
 <unfinished ...>
[pid  4036] pipe2( <unfinished ...>
[pid  4035] write(3, "1000", 4 <unfinished ...>
[pid  4034] pipe2( <unfinished ...>
[pid  4033] write(-1, NULL, 0 <unfinished ...>
[pid  4032] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4037] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4036] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4035] <... write resumed>)        = 4
[pid  4034] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4033] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 4037
[pid  4035] close(3)                    = 0
[pid  4035] mkdir("./file0", 0777 <unfinished ...>
[pid  4033] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4035] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4033] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4035] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4035] pipe2( <unfinished ...>
[pid  4037] <... prctl resumed>)        = 0
[pid  4036] write(-1, NULL, 0 <unfinished ...>
[pid  4035] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4034] write(-1, NULL, 0 <unfinished ...>
[pid  4033] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4037] setpgid(0, 0 <unfinished ...>
[pid  4036] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4035] write(-1, NULL, 0 <unfinished ...>
[pid  4034] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4032] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4037] <... setpgid resumed>)      = 0
[pid  4036] write(-1, NULL, 0 <unfinished ...>
[pid  4035] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4035] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4036] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4034] write(-1, NULL, 0 <unfinished ...>
[pid  4032] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4037] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4035] write(-1, NULL, 0 <unfinished ...>
[pid  4037] <... openat resumed>)       = 3
[pid  4036] write(-1, NULL, 0 <unfinished ...>
[pid  4035] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4034] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4032] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4037] write(3, "1000", 4 <unfinished ...>
[pid  4036] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4035] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4034] write(-1, NULL, 0 <unfinished ...>
[pid  4032] fdatasync(-1 <unfinished ...>
[pid  4037] <... write resumed>)        = 4
[pid  4036] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4035] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4034] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4032] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4037] close(3 <unfinished ...>
[pid  4036] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4035] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4034] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4033] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4032] exit_group(0 <unfinished ...>
[pid  4037] <... close resumed>)        = 0
[pid  4036] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4034] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4033] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4032] <... exit_group resumed>)   = ?
[pid  4037] mkdir("./file0", 0777 <unfinished ...>
[pid  4034] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4033] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4032] +++ exited with 0 +++
[pid  4037] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4035] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4033] fdatasync(-1 <unfinished ...>
[pid  4037] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4035] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4034] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4033] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4037] pipe2( <unfinished ...>
[pid  4035] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4034] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4033] exit_group(0 <unfinished ...>
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4032, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  4037] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4036] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4035] fdatasync(-1 <unfinished ...>
[pid  4034] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4033] <... exit_group resumed>)   = ?
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR <unfinished ...>
[pid  4037] write(-1, NULL, 0 <unfinished ...>
[pid  4036] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4035] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4034] fdatasync(-1 <unfinished ...>
[pid  4033] +++ exited with 0 +++
[pid  3622] <... openat resumed>)       = 3
[pid  4037] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4034] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4037] write(-1, NULL, 0 <unfinished ...>
[pid  4035] exit_group(0 <unfinished ...>
[pid  4034] exit_group(0 <unfinished ...>
[pid  3622] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4033, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  4036] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4037] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4035] <... exit_group resumed>)   = ?
[pid  4034] <... exit_group resumed>)   = ?
[pid  3622] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4036] fdatasync(-1 <unfinished ...>
[pid  4037] write(-1, NULL, 0 <unfinished ...>
[pid  4034] +++ exited with 0 +++
[pid  3622] close(3 <unfinished ...>
[pid  4037] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3622] <... close resumed>)        = 0
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4034, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  4037] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4036] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4035] +++ exited with 0 +++
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] <... openat resumed>)       = 3
[pid  4037] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4035, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  4037] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  4036] exit_group(0 <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] <... openat resumed>)       = 3
[pid  4036] <... exit_group resumed>)   = ?
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 4038
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  4037] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  3618] close(3 <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4037] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4036] +++ exited with 0 +++
[pid  3618] <... close resumed>)        = 0
[pid  3616] close(3 <unfinished ...>
[pid  4037] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  4037] fdatasync(-1 <unfinished ...>
[pid  3620] <... openat resumed>)       = 3
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4036, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4037] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3619] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  4037] exit_group(0 <unfinished ...>
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3619] <... restart_syscall resumed>) = 0
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 4039
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 4040
[pid  4037] <... exit_group resumed>)   = ?
[pid  3620] close(3./strace-static-x86_64: Process 4038 attached
 <unfinished ...>
[pid  4037] +++ exited with 0 +++
[pid  3620] <... close resumed>)        = 0
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4037, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  4038] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  4038] <... prctl resumed>)        = 0
[pid  4038] setpgid(0, 0 <unfinished ...>
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 4041
[pid  3619] <... openat resumed>)       = 3
[pid  4038] <... setpgid resumed>)      = 0
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  4038] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4038] write(3, "1000", 4)         = 4
[pid  3619] close(3 <unfinished ...>
[pid  4038] close(3 <unfinished ...>
[pid  3619] <... close resumed>)        = 0
[pid  4038] <... close resumed>)        = 0
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4038] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  4038] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4038] pipe2([3, 4], 0)            = 0
[pid  4038] write(-1, NULL, 0 <unfinished ...>
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 4042
[pid  4038] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4038] write(-1, NULL, 0 <unfinished ...>
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR <unfinished ...>
[pid  4038] <... write resumed>)        = -1 EBADF (Bad file descriptor)
./strace-static-x86_64: Process 4040 attached
[pid  4038] write(-1, NULL, 0 <unfinished ...>
[pid  3617] <... openat resumed>)       = 3
[pid  4040] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4038] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  4040] <... prctl resumed>)        = 0
[pid  4038] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  3617] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
./strace-static-x86_64: Process 4041 attached
[pid  4040] setpgid(0, 0 <unfinished ...>
[pid  4038] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3617] close(3 <unfinished ...>
[pid  4041] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4040] <... setpgid resumed>)      = 0
[pid  4038] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  3617] <... close resumed>)        = 0
[pid  4041] <... prctl resumed>)        = 0
[pid  4040] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC./strace-static-x86_64: Process 4042 attached
./strace-static-x86_64: Process 4039 attached
 <unfinished ...>
[pid  4041] setpgid(0, 0 <unfinished ...>
[pid  4040] <... openat resumed>)       = 3
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4042] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4041] <... setpgid resumed>)      = 0
[pid  4040] write(3, "1000", 4 <unfinished ...>
[pid  4039] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4041] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4040] <... write resumed>)        = 4
[pid  4041] <... openat resumed>)       = 3
[pid  4040] close(3 <unfinished ...>
[pid  4042] <... prctl resumed>)        = 0
[pid  4041] write(3, "1000", 4 <unfinished ...>
[pid  4040] <... close resumed>)        = 0
[pid  4039] <... prctl resumed>)        = 0
[pid  3617] <... clone resumed>, child_tidptr=0x555556dbb690) = 4043
./strace-static-x86_64: Process 4043 attached
[pid  4041] <... write resumed>)        = 4
[pid  4040] mkdir("./file0", 0777 <unfinished ...>
[pid  4041] close(3 <unfinished ...>
[pid  4040] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4041] <... close resumed>)        = 0
[pid  4040] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4041] mkdir("./file0", 0777 <unfinished ...>
[pid  4040] pipe2( <unfinished ...>
[pid  4041] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4042] setpgid(0, 0 <unfinished ...>
[pid  4040] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4042] <... setpgid resumed>)      = 0
[pid  4041] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4040] write(-1, NULL, 0 <unfinished ...>
[pid  4039] setpgid(0, 0 <unfinished ...>
[pid  4041] pipe2( <unfinished ...>
[pid  4040] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4042] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4041] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4040] write(-1, NULL, 0 <unfinished ...>
[pid  4039] <... setpgid resumed>)      = 0
[pid  4042] <... openat resumed>)       = 3
[pid  4041] write(-1, NULL, 0 <unfinished ...>
[pid  4040] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4042] write(3, "1000", 4 <unfinished ...>
[pid  4041] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4040] write(-1, NULL, 0 <unfinished ...>
[pid  4039] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4041] write(-1, NULL, 0 <unfinished ...>
[pid  4040] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4041] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4040] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4041] write(-1, NULL, 0 <unfinished ...>
[pid  4040] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4041] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4040] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4043] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  4042] <... write resumed>)        = 4
[pid  4041] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4039] <... openat resumed>)       = 3
[pid  4042] close(3 <unfinished ...>
[pid  4041] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4039] write(3, "1000", 4 <unfinished ...>
[pid  4042] <... close resumed>)        = 0
[pid  4041] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4039] <... write resumed>)        = 4
[pid  4043] <... prctl resumed>)        = 0
[pid  4042] mkdir("./file0", 0777 <unfinished ...>
[pid  4039] close(3 <unfinished ...>
[pid  4042] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4039] <... close resumed>)        = 0
[pid  4043] setpgid(0, 0 <unfinished ...>
[pid  4042] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4039] mkdir("./file0", 0777 <unfinished ...>
[pid  4043] <... setpgid resumed>)      = 0
[pid  4042] pipe2( <unfinished ...>
[pid  4039] <... mkdir resumed>)        = -1 EEXIST (File exists)
[pid  4042] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4039] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4039] pipe2( <unfinished ...>
[pid  4042] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4039] <... pipe2 resumed>[3, 4], 0) = 0
[pid  4042] write(-1, NULL, 0 <unfinished ...>
[pid  4039] write(-1, NULL, 0 <unfinished ...>
[pid  4043] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC <unfinished ...>
[pid  4042] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4039] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4042] write(-1, NULL, 0 <unfinished ...>
[pid  4039] write(-1, NULL, 0 <unfinished ...>
[pid  4042] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4039] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4042] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4039] write(-1, NULL, 0 <unfinished ...>
[pid  4043] <... openat resumed>)       = 3
[pid  4042] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4039] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4042] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4043] write(3, "1000", 4 <unfinished ...>
[pid  4039] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4043] <... write resumed>)        = 4
[pid  4039] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4039] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4043] close(3)                    = 0
[pid  4043] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  4043] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4043] pipe2([3, 4], 0)            = 0
[pid  4043] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4043] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4043] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4043] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80 <unfinished ...>
[pid  4038] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4043] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  4038] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4043] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4038] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4038] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  4038] exit_group(0)               = ?
[pid  4038] +++ exited with 0 +++
[pid  3622] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4038, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3622] openat(AT_FDCWD, "/dev/loop5", O_RDWR) = 3
[pid  3622] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3622] close(3)                    = 0
[pid  3622] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 4044 attached
 <unfinished ...>
[pid  4044] prctl(PR_SET_PDEATHSIG, SIGKILL <unfinished ...>
[pid  3622] <... clone resumed>, child_tidptr=0x555556dbb690) = 4044
[pid  4044] <... prctl resumed>)        = 0
[pid  4044] setpgid(0, 0)               = 0
[pid  4044] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4044] write(3, "1000", 4)         = 4
[pid  4044] close(3)                    = 0
[pid  4044] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  4044] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4044] pipe2([3, 4], 0)            = 0
[pid  4044] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4044] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4044] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4044] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  4044] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any," <unfinished ...>
[pid  4043] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4040] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4041] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4043] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4042] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4039] <... mount resumed>)        = -1 EFAULT (Bad address)
[pid  4043] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4043] fdatasync(-1)               = -1 EBADF (Bad file descriptor)
[pid  4043] exit_group(0)               = ?
[pid  4043] +++ exited with 0 +++
[pid  3617] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4043, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3617] openat(AT_FDCWD, "/dev/loop1", O_RDWR) = 3
[pid  3617] ioctl(3, LOOP_CLR_FD)       = -1 ENXIO (No such device or address)
[pid  3617] close(3)                    = 0
[pid  3617] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555556dbb690) = 4045
./strace-static-x86_64: Process 4045 attached
[pid  4045] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4045] setpgid(0, 0)               = 0
[pid  4045] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4045] write(3, "1000", 4)         = 4
[pid  4045] close(3)                    = 0
[pid  4045] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  4042] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4041] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4040] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4039] openat(AT_FDCWD, NULL, O_RDONLY <unfinished ...>
[pid  4042] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4041] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4040] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4039] <... openat resumed>)       = -1 EFAULT (Bad address)
[pid  4042] fdatasync(-1 <unfinished ...>
[pid  4041] fdatasync(-1 <unfinished ...>
[pid  4040] fdatasync(-1 <unfinished ...>
[pid  4039] fdatasync(-1 <unfinished ...>
[pid  4042] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4041] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4040] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4039] <... fdatasync resumed>)    = -1 EBADF (Bad file descriptor)
[pid  4042] exit_group(0 <unfinished ...>
[pid  4041] exit_group(0 <unfinished ...>
[pid  4040] exit_group(0 <unfinished ...>
[pid  4039] exit_group(0 <unfinished ...>
[pid  4042] <... exit_group resumed>)   = ?
[pid  4041] <... exit_group resumed>)   = ?
[pid  4040] <... exit_group resumed>)   = ?
[pid  4039] <... exit_group resumed>)   = ?
[pid  4042] +++ exited with 0 +++
[pid  4041] +++ exited with 0 +++
[pid  4040] +++ exited with 0 +++
[pid  4039] +++ exited with 0 +++
[pid  3620] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4041, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3619] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4042, si_uid=0, si_status=0, si_utime=0, si_stime=1} ---
[pid  3618] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4039, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3616] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4040, si_uid=0, si_status=0, si_utime=0, si_stime=0} ---
[pid  3620] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3616] restart_syscall(<... resuming interrupted clone ...> <unfinished ...>
[pid  3620] <... restart_syscall resumed>) = 0
[pid  3616] <... restart_syscall resumed>) = 0
[pid  3620] openat(AT_FDCWD, "/dev/loop4", O_RDWR <unfinished ...>
[pid  3616] openat(AT_FDCWD, "/dev/loop0", O_RDWR <unfinished ...>
[pid  4045] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  3620] <... openat resumed>)       = 3
[pid  3616] <... openat resumed>)       = 3
[pid  4045] pipe2( <unfinished ...>
[pid  3620] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  4045] <... pipe2 resumed>[3, 4], 0) = 0
[pid  3620] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3619] openat(AT_FDCWD, "/dev/loop3", O_RDWR <unfinished ...>
[pid  3618] openat(AT_FDCWD, "/dev/loop2", O_RDWR <unfinished ...>
[pid  3616] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  4045] write(-1, NULL, 0 <unfinished ...>
[pid  3620] close(3 <unfinished ...>
[pid  3619] <... openat resumed>)       = 3
[pid  3618] <... openat resumed>)       = 3
[pid  3616] close(3 <unfinished ...>
[pid  4045] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3620] <... close resumed>)        = 0
[pid  3619] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3618] ioctl(3, LOOP_CLR_FD <unfinished ...>
[pid  3616] <... close resumed>)        = 0
[pid  4045] write(-1, NULL, 0 <unfinished ...>
[pid  3620] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3619] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3618] <... ioctl resumed>)        = -1 ENXIO (No such device or address)
[pid  3616] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4045] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3619] close(3 <unfinished ...>
[pid  3618] close(3 <unfinished ...>
[pid  4045] write(-1, NULL, 0 <unfinished ...>
[pid  3620] <... clone resumed>, child_tidptr=0x555556dbb690) = 4046
[pid  3619] <... close resumed>)        = 0
[pid  3618] <... close resumed>)        = 0
[pid  3616] <... clone resumed>, child_tidptr=0x555556dbb690) = 4047
[pid  4045] <... write resumed>)        = -1 EBADF (Bad file descriptor)
[pid  3619] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  3618] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD <unfinished ...>
[pid  4045] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  3619] <... clone resumed>, child_tidptr=0x555556dbb690) = 4048
[pid  3618] <... clone resumed>, child_tidptr=0x555556dbb690) = 4049
[pid  4045] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 4049 attached
 <unfinished ...>
[pid  4049] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4049] setpgid(0, 0)               = 0
[pid  4049] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4049] write(3, "1000", 4)         = 4
[pid  4049] close(3)                    = 0
syzkaller login: [   51.362229][ T4044] ==================================================================
[   51.370335][ T4044] BUG: KASAN: use-after-free in __kernfs_remove+0xa09/0xb50
[   51.377649][ T4044] Read of size 2 at addr ffff8880175239a8 by task syz-executor325/4044
[   51.385881][ T4044] 
[   51.388226][ T4044] CPU: 1 PID: 4044 Comm: syz-executor325 Not tainted 6.0.0-rc2-next-20220824-syzkaller #0
[   51.398129][ T4044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
[   51.408202][ T4044] Call Trace:
[pid  4049] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  4049] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4049] pipe2([3, 4], 0)            = 0
[pid  4049] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4049] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4049] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4049] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  4049] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 4046 attached
 <unfinished ...>
[pid  4046] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4046] setpgid(0, 0)               = 0
[pid  4046] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4046] write(3, "1000", 4)         = 4
[pid  4046] close(3)                    = 0
[pid  4046] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  4046] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4046] pipe2([3, 4], 0)            = 0
[pid  4046] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4046] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4046] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4046] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  4046] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 4047 attached
 <unfinished ...>
[pid  4047] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4047] setpgid(0, 0)               = 0
[pid  4047] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4047] write(3, "1000", 4)         = 4
[pid  4047] close(3)                    = 0
[pid  4047] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  4047] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4047] pipe2([3, 4], 0)            = 0
[pid  4047] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4047] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4047] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4047] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[pid  4047] mount(NULL, "./file0", "9p", 0, "trans=fd,rfdno=0x0000000000000003,wfdno=0x0000000000000004,access=any,"./strace-static-x86_64: Process 4048 attached
 <unfinished ...>
[pid  4048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid  4048] setpgid(0, 0)               = 0
[pid  4048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid  4048] write(3, "1000", 4)         = 4
[pid  4048] close(3)                    = 0
[pid  4048] mkdir("./file0", 0777)      = -1 EEXIST (File exists)
[pid  4048] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
[pid  4048] pipe2([3, 4], 0)            = 0
[pid  4048] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4048] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4048] write(-1, NULL, 0)          = -1 EBADF (Bad file descriptor)
[pid  4048] write(-1, "\x50\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x24\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 80) = -1 EBADF (Bad file descriptor)
[   51.411496][ T4044]  <TASK>
[   51.414436][ T4044]  dump_stack_lvl+0xcd/0x134
[   51.419058][ T4044]  print_report.cold+0x2ba/0x719
[   51.424035][ T4044]  ? __kernfs_remove+0xa09/0xb50
[   51.429012][ T4044]  kasan_report+0xb1/0x1e0
[   51.433466][ T4044]  ? __kernfs_remove+0xa09/0xb50
[   51.438437][ T4044]  __kernfs_remove+0xa09/0xb50
[   51.443233][ T4044]  ? wait_for_completion_io_timeout+0x20/0x20
[   51.449329][ T4044]  ? lock_downgrade+0x6e0/0x6e0
[   51.454205][ T4044]  ? kernfs_next_descendant_post+0x2f0/0x2f0
[   51.460218][ T4044]  ? kernfs_name_hash+0xf1/0x120
[   51.465193][ T4044]  kernfs_remove_by_name_ns+0xa8/0x110
[   51.470687][ T4044]  sysfs_slab_add+0x13e/0x1e0
[   51.475380][ T4044]  __kmem_cache_create+0x509/0x690
[   51.480502][ T4044]  kmem_cache_create_usercopy+0x1f9/0x300
[   51.486228][ T4044]  p9_client_create+0xca5/0x1070
[   51.491184][ T4044]  ? p9_client_rpc+0xce0/0xce0
[   51.495963][ T4044]  ? lockdep_init_map_type+0x21a/0x7f0
[   51.501425][ T4044]  ? __kasan_kmalloc+0xa9/0xd0
[   51.506197][ T4044]  ? __raw_spin_lock_init+0x36/0x110
[   51.511489][ T4044]  v9fs_session_init+0x1e2/0x1810
[   51.516528][ T4044]  ? lock_acquire+0x480/0x570
[   51.521213][ T4044]  ? rcu_read_lock_sched_held+0xd/0x70
[   51.526683][ T4044]  ? lock_release+0x560/0x780
[   51.531362][ T4044]  ? __kmem_cache_alloc_node+0x48/0x3d0
[   51.536924][ T4044]  ? lock_downgrade+0x6e0/0x6e0
[   51.541780][ T4044]  ? v9fs_show_options+0x780/0x780
[   51.546913][ T4044]  ? __kmem_cache_alloc_node+0x1d8/0x3d0
[   51.552563][ T4044]  ? v9fs_mount+0x9b/0xc90
[   51.556989][ T4044]  v9fs_mount+0xba/0xc90
[   51.561240][ T4044]  ? __kmem_cache_alloc_node+0x1d8/0x3d0
[   51.566890][ T4044]  ? legacy_init_fs_context+0x40/0xe0
[   51.572276][ T4044]  ? v9fs_statfs+0x4d0/0x4d0
[   51.576870][ T4044]  ? apparmor_capable+0x1d8/0x460
[   51.582014][ T4044]  ? v9fs_statfs+0x4d0/0x4d0
[   51.586630][ T4044]  legacy_get_tree+0x105/0x220
[   51.591429][ T4044]  vfs_get_tree+0x89/0x2f0
[   51.595868][ T4044]  path_mount+0x1326/0x1e20
[   51.600410][ T4044]  ? kmem_cache_free+0xe7/0x5b0
[   51.605291][ T4044]  ? finish_automount+0x960/0x960
[   51.610333][ T4044]  ? putname+0xfe/0x140
[   51.614515][ T4044]  __x64_sys_mount+0x27f/0x300
[   51.619293][ T4044]  ? copy_mnt_ns+0xae0/0xae0
[   51.623894][ T4044]  ? _raw_spin_unlock_irq+0x2a/0x40
[   51.629109][ T4044]  ? ptrace_notify+0xfa/0x140
[   51.633794][ T4044]  do_syscall_64+0x35/0xb0
[   51.638215][ T4044]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   51.644138][ T4044] RIP: 0033:0x7f9adb816389
[   51.648561][ T4044] 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
[   51.668186][ T4044] RSP: 002b:00007fff4b66cf98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   51.676607][ T4044] RAX: ffffffffffffffda RBX: 00007fff4b66cfd0 RCX: 00007f9adb816389
[   51.684579][ T4044] RDX: 0000000020000280 RSI: 00000000200002c0 RDI: 0000000000000000
[   51.692549][ T4044] RBP: 0000000000000000 R08: 0000000020000140 R09: 000000000000c837
[   51.700518][ T4044] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000f4240
[   51.708487][ T4044] R13: 000000000000c837 R14: 00007fff4b66cfbc R15: 00007fff4b66cfc0
[   51.716466][ T4044]  </TASK>
[   51.719481][ T4044] 
[   51.721798][ T4044] Allocated by task 4039:
[   51.726115][ T4044]  kasan_save_stack+0x1e/0x40
[   51.730803][ T4044]  __kasan_slab_alloc+0x90/0xc0
[   51.735661][ T4044]  kmem_cache_alloc+0x2b7/0x3d0
[   51.740512][ T4044]  __kernfs_new_node+0xd4/0x8b0
[   51.745372][ T4044]  kernfs_create_dir_ns+0x9c/0x220
[   51.750502][ T4044]  sysfs_create_dir_ns+0x127/0x290
[   51.755612][ T4044]  kobject_add_internal+0x2c9/0x8f0
[   51.760811][ T4044]  kobject_init_and_add+0x101/0x160
[   51.766009][ T4044]  sysfs_slab_add+0x161/0x1e0
[   51.770718][ T4044]  __kmem_cache_create+0x509/0x690
[   51.775844][ T4044]  kmem_cache_create_usercopy+0x1f9/0x300
[   51.781575][ T4044]  p9_client_create+0xca5/0x1070
[   51.786546][ T4044]  v9fs_session_init+0x1e2/0x1810
[   51.791596][ T4044]  v9fs_mount+0xba/0xc90
[   51.795855][ T4044]  legacy_get_tree+0x105/0x220
[   51.800646][ T4044]  vfs_get_tree+0x89/0x2f0
[   51.805073][ T4044]  path_mount+0x1326/0x1e20
[   51.809590][ T4044]  __x64_sys_mount+0x27f/0x300
[   51.814365][ T4044]  do_syscall_64+0x35/0xb0
[   51.818784][ T4044]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   51.824693][ T4044] 
[   51.827009][ T4044] Freed by task 4044:
[   51.830980][ T4044]  kasan_save_stack+0x1e/0x40
[   51.835673][ T4044]  kasan_set_track+0x21/0x30
[   51.840302][ T4044]  kasan_set_free_info+0x20/0x30
[   51.845268][ T4044]  ____kasan_slab_free+0x166/0x1c0
[   51.850394][ T4044]  slab_free_freelist_hook+0x8b/0x1c0
[   51.855775][ T4044]  kmem_cache_free+0xe7/0x5b0
[   51.860458][ T4044]  kernfs_put.part.0+0x2c4/0x540
[   51.865406][ T4044]  kernfs_put+0x42/0x50
[   51.869577][ T4044]  __kernfs_remove+0x7a6/0xb50
[   51.874350][ T4044]  kernfs_remove_by_name_ns+0xa8/0x110
[   51.879819][ T4044]  sysfs_slab_add+0x13e/0x1e0
[   51.884499][ T4044]  __kmem_cache_create+0x509/0x690
[   51.889613][ T4044]  kmem_cache_create_usercopy+0x1f9/0x300
[   51.895332][ T4044]  p9_client_create+0xca5/0x1070
[   51.900282][ T4044]  v9fs_session_init+0x1e2/0x1810
[   51.905315][ T4044]  v9fs_mount+0xba/0xc90
[   51.909567][ T4044]  legacy_get_tree+0x105/0x220
[   51.914344][ T4044]  vfs_get_tree+0x89/0x2f0
[   51.918772][ T4044]  path_mount+0x1326/0x1e20
[   51.923285][ T4044]  __x64_sys_mount+0x27f/0x300
[   51.928057][ T4044]  do_syscall_64+0x35/0xb0
[   51.932491][ T4044]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   51.938396][ T4044] 
[   51.940713][ T4044] The buggy address belongs to the object at ffff888017523910
[   51.940713][ T4044]  which belongs to the cache kernfs_node_cache of size 168
[   51.955284][ T4044] The buggy address is located 152 bytes inside of
[   51.955284][ T4044]  168-byte region [ffff888017523910, ffff8880175239b8)
[   51.968553][ T4044] 
[   51.970868][ T4044] The buggy address belongs to the physical page:
[   51.977268][ T4044] page:ffffea00005d48c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888017523570 pfn:0x17523
[   51.988718][ T4044] flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
[   51.996269][ T4044] raw: 00fff00000000200 ffffea00005d4c80 dead000000000006 ffff8880119d4c80
[   52.004850][ T4044] raw: ffff888017523570 000000008011000b 00000001ffffffff 0000000000000000
[   52.013428][ T4044] page dumped because: kasan: bad access detected
[   52.019829][ T4044] page_owner tracks the page as allocated
[   52.025531][ T4044] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 1, tgid 1 (swapper/0), ts 2122740088, free_ts 0
[   52.042113][ T4044]  get_page_from_freelist+0x109b/0x2ce0
[   52.047671][ T4044]  __alloc_pages+0x1c7/0x510
[   52.052271][ T4044]  alloc_page_interleave+0x1e/0x200
[   52.057481][ T4044]  alloc_pages+0x22f/0x270
[   52.061903][ T4044]  allocate_slab+0x27e/0x3d0
[   52.066495][ T4044]  ___slab_alloc+0xa3e/0x11d0
[   52.071184][ T4044]  __slab_alloc.constprop.0+0x4d/0xa0
[   52.076564][ T4044]  kmem_cache_alloc+0x31c/0x3d0
[   52.081423][ T4044]  __kernfs_new_node+0xd4/0x8b0
[   52.086279][ T4044]  kernfs_create_dir_ns+0x9c/0x220
[   52.091400][ T4044]  internal_create_group+0x787/0xb10
[   52.096690][ T4044]  param_sysfs_init+0x342/0x43b
[   52.101554][ T4044]  do_one_initcall+0xfe/0x650
[   52.106238][ T4044]  kernel_init_freeable+0x6b1/0x73a
[   52.111440][ T4044]  kernel_init+0x1a/0x1d0
[   52.115776][ T4044]  ret_from_fork+0x1f/0x30
[   52.120199][ T4044] page_owner free stack trace missing
[   52.125573][ T4044] 
[   52.127889][ T4044] Memory state around the buggy address:
[   52.133516][ T4044]  ffff888017523880: fb fb fb fb fb fb fb fb fb fb fc fc fc fc fc fc
[   52.141571][ T4044]  ffff888017523900: fc fc fa fb fb fb fb fb fb fb fb fb fb fb fb fb
[   52.149632][ T4044] >ffff888017523980: fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc fa
[   52.157696][ T4044]                                   ^
[   52.163054][ T4044]  ffff888017523a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   52.171108][ T4044]  ffff888017523a80: fb fb fb fb fc fc fc fc fc fc fc fc fa fb fb fb
[   52.179158][ T4044] ==================================================================
[   52.188009][ T4044] Kernel panic - not syncing: panic_on_warn set ...
[   52.194956][ T4044] CPU: 1 PID: 4044 Comm: syz-executor325 Not tainted 6.0.0-rc2-next-20220824-syzkaller #0
[   52.204857][ T4044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
[   52.214938][ T4044] Call Trace:
[   52.218217][ T4044]  <TASK>
[   52.221158][ T4044]  dump_stack_lvl+0xcd/0x134
[   52.225775][ T4044]  panic+0x2c8/0x627
[   52.229682][ T4044]  ? panic_print_sys_info.part.0+0x10b/0x10b
[   52.235672][ T4044]  ? preempt_schedule_common+0x59/0xc0
[   52.241141][ T4044]  ? preempt_schedule_thunk+0x16/0x18
[   52.246528][ T4044]  ? __kernfs_remove+0xa09/0xb50
[   52.251478][ T4044]  end_report.part.0+0x3f/0x7c
[   52.256249][ T4044]  kasan_report.cold+0xa/0xf
[   52.260847][ T4044]  ? __kernfs_remove+0xa09/0xb50
[   52.265799][ T4044]  __kernfs_remove+0xa09/0xb50
[   52.270590][ T4044]  ? wait_for_completion_io_timeout+0x20/0x20
[   52.276665][ T4044]  ? lock_downgrade+0x6e0/0x6e0
[   52.281523][ T4044]  ? kernfs_next_descendant_post+0x2f0/0x2f0
[   52.287517][ T4044]  ? kernfs_name_hash+0xf1/0x120
[   52.292468][ T4044]  kernfs_remove_by_name_ns+0xa8/0x110
[   52.297944][ T4044]  sysfs_slab_add+0x13e/0x1e0
[   52.302626][ T4044]  __kmem_cache_create+0x509/0x690
[   52.307745][ T4044]  kmem_cache_create_usercopy+0x1f9/0x300
[   52.313471][ T4044]  p9_client_create+0xca5/0x1070
[   52.318429][ T4044]  ? p9_client_rpc+0xce0/0xce0
[   52.323220][ T4044]  ? lockdep_init_map_type+0x21a/0x7f0
[   52.328682][ T4044]  ? __kasan_kmalloc+0xa9/0xd0
[   52.333453][ T4044]  ? __raw_spin_lock_init+0x36/0x110
[   52.338759][ T4044]  v9fs_session_init+0x1e2/0x1810
[   52.343810][ T4044]  ? lock_acquire+0x480/0x570
[   52.348496][ T4044]  ? rcu_read_lock_sched_held+0xd/0x70
[   52.353956][ T4044]  ? lock_release+0x560/0x780
[   52.358634][ T4044]  ? __kmem_cache_alloc_node+0x48/0x3d0
[   52.364185][ T4044]  ? lock_downgrade+0x6e0/0x6e0
[   52.369039][ T4044]  ? v9fs_show_options+0x780/0x780
[   52.374168][ T4044]  ? __kmem_cache_alloc_node+0x1d8/0x3d0
[   52.379812][ T4044]  ? v9fs_mount+0x9b/0xc90
[   52.384235][ T4044]  v9fs_mount+0xba/0xc90
[   52.388483][ T4044]  ? __kmem_cache_alloc_node+0x1d8/0x3d0
[   52.394119][ T4044]  ? legacy_init_fs_context+0x40/0xe0
[   52.399506][ T4044]  ? v9fs_statfs+0x4d0/0x4d0
[   52.404099][ T4044]  ? apparmor_capable+0x1d8/0x460
[   52.409129][ T4044]  ? v9fs_statfs+0x4d0/0x4d0
[   52.413723][ T4044]  legacy_get_tree+0x105/0x220
[   52.418502][ T4044]  vfs_get_tree+0x89/0x2f0
[   52.422936][ T4044]  path_mount+0x1326/0x1e20
[   52.427450][ T4044]  ? kmem_cache_free+0xe7/0x5b0
[   52.432305][ T4044]  ? finish_automount+0x960/0x960
[   52.437342][ T4044]  ? putname+0xfe/0x140
[   52.441516][ T4044]  __x64_sys_mount+0x27f/0x300
[   52.446301][ T4044]  ? copy_mnt_ns+0xae0/0xae0
[   52.450904][ T4044]  ? _raw_spin_unlock_irq+0x2a/0x40
[   52.456117][ T4044]  ? ptrace_notify+0xfa/0x140
[   52.460800][ T4044]  do_syscall_64+0x35/0xb0
[   52.465226][ T4044]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[   52.471132][ T4044] RIP: 0033:0x7f9adb816389
[   52.475545][ T4044] 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
[   52.495153][ T4044] RSP: 002b:00007fff4b66cf98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[   52.503565][ T4044] RAX: ffffffffffffffda RBX: 00007fff4b66cfd0 RCX: 00007f9adb816389
[   52.511536][ T4044] RDX: 0000000020000280 RSI: 00000000200002c0 RDI: 0000000000000000
[   52.519505][ T4044] RBP: 0000000000000000 R08: 0000000020000140 R09: 000000000000c837
[   52.527477][ T4044] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000f4240
[   52.535444][ T4044] R13: 000000000000c837 R14: 00007fff4b66cfbc R15: 00007fff4b66cfc0
[   52.543424][ T4044]  </TASK>
[   52.546596][ T4044] Kernel Offset: disabled
[   52.550909][ T4044] Rebooting in 86400 seconds..