Public bug reported: Host system: Ubuntu 18.04.3 AMD64 Qemu Version: qemu-arm-static --version qemu-arm version 2.11.1(Debian 1:2.11+dfsg-1ubuntu7.17)
Emulated System: Root file system taken from RaspberryPi 3 image ubuntu-18.04.3-preinstalled-server-armhf+raspi3.img from http://cdimage.ubuntu.com/releases/18.04/release/ubuntu-18.04.3-preinstalled-server-armhf+raspi3.img.xz. Then using system-nspawn with with /usr/bin/qemu-arm-static copied in. When executing commands like dpkg -i (--force-all) <...>.deb or tar tvf .. or tar xvf .. the hosting qemu-arm-static process goes into an infinite loop of getsockopt calls of the form: getsockopt(12, SOL_SOCKET, SO_PEERSEC, 0x7fff7cac49d8, [4]) = -1 ERANGE (Numerical result out of range) I assume that this is because of an infinite retry without checking the actual error code of the call. strace: openat(AT_FDCWD, "/lib/arm-linux-gnueabihf/librt.so.1", O_RDONLY|O_CLOEXEC) = 12 read(12, "\177ELF\1\1\1\3\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\20\30\0\0004\0\0\0"..., 512) = 512 lseek(12, 21236, SEEK_SET) = 21236 read(12, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 1240) = 1240 lseek(12, 20856, SEEK_SET) = 20856 read(12, "A2\0\0\0aeabi\0\1(\0\0\0\0057-A\0\6\n\7A\10\1\t\2\n\4\22"..., 51) = 51 fstat(12, {st_mode=S_IFREG|0644, st_size=22476, ...}) = 0 mmap(0x7f419952c000, 90112, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS|MAP_DENYWRIT E, -1, 0) = 0x7f419952c000 mmap(0x7f419952c000, 90112, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 12, 0) = 0x 7f419952c000 mprotect(0x7f4199531000, 61440, PROT_NONE) = 0 mmap(0x7f4199540000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 12, 0x4000) = 0x7f4199540000 close(12) = 0 mprotect(0x7f4199540000, 4096, PROT_READ) = 0 mprotect(0x7f4199578000, 8192, PROT_READ) = 0 mmap(0x7f419957b000, 28672, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS|MAP_NORESERVE, -1, 0) = 0x7f419957b000 rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], NULL, 8) = 0 rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], NULL, 8) = 0 rt_sigprocmask(SIG_SETMASK, [HUP USR1 USR2 PIPE ALRM CHLD TSTP URG VTALRM PROF WINCH IO], NULL, 8 ) = 0 access("/etc/systemd/dont-synthesize-nobody", F_OK) = -1 ENOENT (No such file or directory) getpid() = 26 socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 12 getsockopt(12, SOL_SOCKET, SO_RCVBUF, [212992], [4]) = 0 setsockopt(12, SOL_SOCKET, SO_RCVBUFFORCE, [8388608], 4) = -1 EPERM (Operation not permitted) setsockopt(12, SOL_SOCKET, SO_RCVBUF, [8388608], 4) = 0 getsockopt(12, SOL_SOCKET, SO_SNDBUF, [212992], [4]) = 0 setsockopt(12, SOL_SOCKET, SO_SNDBUFFORCE, [8388608], 4) = -1 EPERM (Operation not permitted) setsockopt(12, SOL_SOCKET, SO_SNDBUF, [8388608], 4) = 0 connect(12, {sa_family=AF_UNIX, sun_path="/run/dbus/system_bus_socket"}, 29) = 0 getsockopt(12, SOL_SOCKET, SO_PEERCRED, {pid=0, uid=0, gid=0}, [12]) = 0 getsockopt(12, SOL_SOCKET, SO_PEERSEC, 0x7fff7cac49d8, [4]) = -1 ERANGE (Numerical result out of range) ** Affects: qemu Importance: Undecided Status: New -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1840252 Title: Infinite loop over ERANGE from getsockopt Status in QEMU: New Bug description: Host system: Ubuntu 18.04.3 AMD64 Qemu Version: qemu-arm-static --version qemu-arm version 2.11.1(Debian 1:2.11+dfsg-1ubuntu7.17) Emulated System: Root file system taken from RaspberryPi 3 image ubuntu-18.04.3-preinstalled-server-armhf+raspi3.img from http://cdimage.ubuntu.com/releases/18.04/release/ubuntu-18.04.3-preinstalled-server-armhf+raspi3.img.xz. Then using system-nspawn with with /usr/bin/qemu-arm-static copied in. When executing commands like dpkg -i (--force-all) <...>.deb or tar tvf .. or tar xvf .. the hosting qemu-arm-static process goes into an infinite loop of getsockopt calls of the form: getsockopt(12, SOL_SOCKET, SO_PEERSEC, 0x7fff7cac49d8, [4]) = -1 ERANGE (Numerical result out of range) I assume that this is because of an infinite retry without checking the actual error code of the call. strace: openat(AT_FDCWD, "/lib/arm-linux-gnueabihf/librt.so.1", O_RDONLY|O_CLOEXEC) = 12 read(12, "\177ELF\1\1\1\3\0\0\0\0\0\0\0\0\3\0(\0\1\0\0\0\20\30\0\0004\0\0\0"..., 512) = 512 lseek(12, 21236, SEEK_SET) = 21236 read(12, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 1240) = 1240 lseek(12, 20856, SEEK_SET) = 20856 read(12, "A2\0\0\0aeabi\0\1(\0\0\0\0057-A\0\6\n\7A\10\1\t\2\n\4\22"..., 51) = 51 fstat(12, {st_mode=S_IFREG|0644, st_size=22476, ...}) = 0 mmap(0x7f419952c000, 90112, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS|MAP_DENYWRIT E, -1, 0) = 0x7f419952c000 mmap(0x7f419952c000, 90112, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 12, 0) = 0x 7f419952c000 mprotect(0x7f4199531000, 61440, PROT_NONE) = 0 mmap(0x7f4199540000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 12, 0x4000) = 0x7f4199540000 close(12) = 0 mprotect(0x7f4199540000, 4096, PROT_READ) = 0 mprotect(0x7f4199578000, 8192, PROT_READ) = 0 mmap(0x7f419957b000, 28672, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS|MAP_NORESERVE, -1, 0) = 0x7f419957b000 rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], NULL, 8) = 0 rt_sigprocmask(SIG_SETMASK, ~[RTMIN RT_1], NULL, 8) = 0 rt_sigprocmask(SIG_SETMASK, [HUP USR1 USR2 PIPE ALRM CHLD TSTP URG VTALRM PROF WINCH IO], NULL, 8 ) = 0 access("/etc/systemd/dont-synthesize-nobody", F_OK) = -1 ENOENT (No such file or directory) getpid() = 26 socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 12 getsockopt(12, SOL_SOCKET, SO_RCVBUF, [212992], [4]) = 0 setsockopt(12, SOL_SOCKET, SO_RCVBUFFORCE, [8388608], 4) = -1 EPERM (Operation not permitted) setsockopt(12, SOL_SOCKET, SO_RCVBUF, [8388608], 4) = 0 getsockopt(12, SOL_SOCKET, SO_SNDBUF, [212992], [4]) = 0 setsockopt(12, SOL_SOCKET, SO_SNDBUFFORCE, [8388608], 4) = -1 EPERM (Operation not permitted) setsockopt(12, SOL_SOCKET, SO_SNDBUF, [8388608], 4) = 0 connect(12, {sa_family=AF_UNIX, sun_path="/run/dbus/system_bus_socket"}, 29) = 0 getsockopt(12, SOL_SOCKET, SO_PEERCRED, {pid=0, uid=0, gid=0}, [12]) = 0 getsockopt(12, SOL_SOCKET, SO_PEERSEC, 0x7fff7cac49d8, [4]) = -1 ERANGE (Numerical result out of range) To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1840252/+subscriptions
