runc-rc8-broken-no-cloexec.txt

mount("/proc/self/exe", "/run/runc/test/runc.mQQvkM", 0x8cbf35, MS_BIND, 0x8cbf35) = 0
mount("", "/run/runc/test/runc.mQQvkM", 0x8cbf35, MS_RDONLY|MS_REMOUNT|MS_BIND, "") = 0
openat(AT_FDCWD, "/run/runc/test/runc.mQQvkM", O_RDONLY|O_PATH) = 6
umount2("/run/runc/test/runc.mQQvkM", MNT_DETACH) = 0
unlink("/run/runc/test/runc.mQQvkM") = 0
execveat(6, "", ["./runc-rc8-mod", "init"], ["GOMAXPROCS=", "_LIBCONTAINER_CONSOLE=3", "_LIBCONTAINER_INITPIPE=4", "_LIBCONTAINER_STATEDIR=/run/runc"..., "_LIBCONTAINER_FIFOFD=5", "_LIBCONTAINER_INITTYPE=standard", "_LIBCONTAINER_CLONED_BINARY=1"], AT_EMPTY_PATH) = -1 ENOENT (No such file or directory)
close(6)                    = 0

runc-rc8-broken-no-umount.txt

mount("/proc/self/exe", "/run/runc/test/runc.ghkL1M", 0x8cbe95, MS_BIND, 0x8cbe95) = 0
mount("", "/run/runc/test/runc.ghkL1M", 0x8cbe95, MS_RDONLY|MS_REMOUNT|MS_BIND, "") = 0
openat(AT_FDCWD, "/run/runc/test/runc.ghkL1M", O_RDONLY|O_PATH) = 6
execveat(6, "", ["./runc-rc8-mod", "init"], ["GOMAXPROCS=", "_LIBCONTAINER_CONSOLE=3", "_LIBCONTAINER_INITPIPE=4", "_LIBCONTAINER_STATEDIR=/run/runc"..., "_LIBCONTAINER_FIFOFD=5", "_LIBCONTAINER_INITTYPE=standard", "_LIBCONTAINER_CLONED_BINARY=1"], AT_EMPTY_PATH) = -1 ENOENT (No such file or directory)
close(6)                    = 0

runc-rc8-broken-no-unlink.txt

openat(AT_FDCWD, "/run/runc/test/runc.wZ0siG", O_RDWR|O_CREAT|O_EXCL, 0600) = 6
close(6)                    = 0
mount("/proc/self/exe", "/run/runc/test/runc.wZ0siG", 0x8cbef5, MS_BIND, 0x8cbef5) = 0
mount("", "/run/runc/test/runc.wZ0siG", 0x8cbef5, MS_RDONLY|MS_REMOUNT|MS_BIND, "") = 0
openat(AT_FDCWD, "/run/runc/test/runc.wZ0siG", O_RDONLY|O_PATH) = 6
umount2("/run/runc/test/runc.wZ0siG", MNT_DETACH) = 0
execveat(6, "", ["./runc-rc8-mod", "init"], ["GOMAXPROCS=", "_LIBCONTAINER_CONSOLE=3", "_LIBCONTAINER_INITPIPE=4", "_LIBCONTAINER_STATEDIR=/run/runc"..., "_LIBCONTAINER_FIFOFD=5", "_LIBCONTAINER_INITTYPE=standard", "_LIBCONTAINER_CLONED_BINARY=1"], AT_EMPTY_PATH) = -1 ENOENT (No such file or directory)

runc-rc8-broken.txt

execve("/proc/self/exe", ["./runc-rc8", "init"], ["GOMAXPROCS=", "_LIBCONTAINER_CONSOLE=3", "_LIBCONTAINER_INITPIPE=4", "_LIBCONTAINER_STATEDIR=/run/runc"..., "_LIBCONTAINER_FIFOFD=5", "_LIBCONTAINER_INITTYPE=standard"]) = 0
brk(NULL)                   = 0x555556c95000
brk(0x555556c961c0)         = 0x555556c961c0
arch_prctl(ARCH_SET_FS, 0x555556c95880) = 0
uname({sysname="Linux", nodename="msl", release="5.2.8", version="#1 SMP Fri Aug 9 16:44:44 PDT 2019", machine="x86_64", domainname="(none)"}) = 0
set_tid_address(0x555556c95b50) = 929
set_robust_list(0x555556c95b60, 24) = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x6c3d20, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x6c32a0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x6c3dc0, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x6c32a0}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/home/evan/ubuntu/runc-rc8", 4096) = 26
brk(0x555556cb71c0)         = 0x555556cb71c0
brk(0x555556cb8000)         = 0x555556cb8000
openat(AT_FDCWD, "/proc/self/exe", O_RDONLY|O_CLOEXEC) = 6
fcntl(6, F_GET_SEALS)       = -1 EINVAL (Invalid argument)
close(6)                    = 0
openat(AT_FDCWD, "/proc/self/cmdline", O_RDONLY|O_CLOEXEC) = 6
read(6, "./runc-rc8\0init\0", 4096) = 16
read(6, "", 4096)           = 0
close(6)                    = 0
gettimeofday({tv_sec=1566318608, tv_usec=269854}, NULL) = 0
getpid()                    = 929
openat(AT_FDCWD, "/run/runc/test/runc.JnVMsm", O_RDWR|O_CREAT|O_EXCL, 0600) = 6
close(6)                    = 0
mount("/proc/self/exe", "/run/runc/test/runc.JnVMsm", 0x88aa75, MS_BIND, 0x88aa75) = 0
mount("", "/run/runc/test/runc.JnVMsm", 0x88aa75, MS_RDONLY|MS_REMOUNT|MS_BIND, "") = 0
openat(AT_FDCWD, "/run/runc/test/runc.JnVMsm", O_RDONLY|O_CLOEXEC|O_PATH) = 6
umount2("/run/runc/test/runc.JnVMsm", MNT_DETACH) = 0
unlink("/run/runc/test/runc.JnVMsm") = 0
execveat(6, "", ["./runc-rc8", "init"], ["GOMAXPROCS=", "_LIBCONTAINER_CONSOLE=3", "_LIBCONTAINER_INITPIPE=4", "_LIBCONTAINER_STATEDIR=/run/runc"..., "_LIBCONTAINER_FIFOFD=5", "_LIBCONTAINER_INITTYPE=standard", "_LIBCONTAINER_CLONED_BINARY=1"], AT_EMPTY_PATH) = -1 ENOENT (No such file or directory)
close(6)                    = 0
write(2, "nsenter: could not ensure we are"..., 76) = 76
exit_group(23)              = ?
+++ exited with 23 +++

runc-rc8-working.txt

execve("/proc/self/exe", ["./runc", "init"], ["GOMAXPROCS=", "_LIBCONTAINER_CONSOLE=3", "_LIBCONTAINER_INITPIPE=4", "_LIBCONTAINER_STATEDIR=/run/runc"..., "_LIBCONTAINER_FIFOFD=5", "_LIBCONTAINER_INITTYPE=standard"]) = 0
brk(NULL)                               = 0x1e83000
brk(0x1e841c0)                          = 0x1e841c0
arch_prctl(ARCH_SET_FS, 0x1e83880)      = 0
uname({sysname="Linux", nodename="cable", release="4.15.0-51-generic", version="#55-Ubuntu SMP Wed May 15 14:27:21 UTC 2019", machine="x86_64", domainname="(none)"}) = 0
set_tid_address(0x1e83b50)              = 19979
set_robust_list(0x1e83b60, 24)          = 0
rt_sigaction(SIGRTMIN, {sa_handler=0x6c3d20, sa_mask=[], sa_flags=SA_RESTORER|SA_SIGINFO, sa_restorer=0x6c32a0}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {sa_handler=0x6c3dc0, sa_mask=[], sa_flags=SA_RESTORER|SA_RESTART|SA_SIGINFO, sa_restorer=0x6c32a0}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/home/evan/go/src/github.com/ope"..., 4096) = 57
brk(0x1ea51c0)                          = 0x1ea51c0
brk(0x1ea6000)                          = 0x1ea6000
openat(AT_FDCWD, "/proc/self/exe", O_RDONLY|O_CLOEXEC) = 6
fcntl(6, F_GET_SEALS)                   = -1 EINVAL (Invalid argument)
close(6)                                = 0
openat(AT_FDCWD, "/proc/self/cmdline", O_RDONLY|O_CLOEXEC) = 6
read(6, "./runc\0init\0", 4096)         = 12
read(6, "", 4096)                       = 0
close(6)                                = 0
gettimeofday({tv_sec=1566334819, tv_usec=103926}, NULL) = 0
getpid()                                = 19979
openat(AT_FDCWD, "/run/runc/test/runc.6xnf8b", O_RDWR|O_CREAT|O_EXCL, 0600) = 6
close(6)                                = 0
mount("/proc/self/exe", "/run/runc/test/runc.6xnf8b", 0x88aa75, MS_BIND, 0x88aa75) = 0
mount("", "/run/runc/test/runc.6xnf8b", 0x88aa75, MS_RDONLY|MS_REMOUNT|MS_BIND, "") = 0
openat(AT_FDCWD, "/run/runc/test/runc.6xnf8b", O_RDONLY|O_CLOEXEC|O_PATH) = 6
umount2("/run/runc/test/runc.6xnf8b", MNT_DETACH) = 0
unlink("/run/runc/test/runc.6xnf8b")    = 0
execveat(6, "", ["./runc", "init"], ["GOMAXPROCS=", "_LIBCONTAINER_CONSOLE=3", "_LIBCONTAINER_INITPIPE=4", "_LIBCONTAINER_STATEDIR=/run/runc"..., "_LIBCONTAINER_FIFOFD=5", "_LIBCONTAINER_INITTYPE=standard", "_LIBCONTAINER_CLONED_BINARY=1"], AT_EMPTY_PATH) = 0