Package: qemu-user-static Version: 1:3.1+dfsg-4 Severity: normal Dear Maintainer,
Trying to build gitlab-runner on an ThunderX arm64 box it tries to run a docker image with armhf binaries which fails: standard_init_linux.go:207: exec user process caused "exec format error" You can replicate by running: 14:30:41 [root@qemu-test:/v/l/d/info] 1 # uname -a Linux qemu-test 4.20.0 #5 SMP Tue Jan 8 10:57:44 UTC 2019 aarch64 aarch64 aarch64 GNU/Linux 14:30:46 [root@qemu-test:/v/l/d/info] # arch-test -n armhf armhf: not supported on this machine/kernel The underlying reason is because binfmt_misc isn't set up for armhf binaries because qemu-user-static.postinst does: # find which fmts needs to be filtered out, which is arch-dependent. # Drop support for emulating amd64 on i386, http://bugs.debian.org/604712 case "$DPKG_MAINTSCRIPT_ARCH" in amd64 | i386) omit="i386|x86_64" ;; arm | armel | armhf | arm64) omit="arm|aarch64" ;; mips | mipsel) omit="$DPKG_MAINTSCRIPT_ARCH" ;; ppc64 | powerpc) omit="ppc|ppc64|ppc64abi32" ;; ppc64el) omit="ppc64le" ;; s390x) omit="s390x" ;; sparc | sparc64) omit="sparc|sparc32plus|sparc64" ;; *) omit="$DPKG_MAINTSCRIPT_ARCH" ;; esac Which is certainly not true for all aarch64 CPUs. Some do not support aarch32. The following change makes it work but requires arch-test as a dependency: # find which fmts needs to be filtered out, which is arch-dependent. # Drop support for emulating amd64 on i386, http://bugs.debian.org/604712 case "$DPKG_MAINTSCRIPT_ARCH" in amd64 | i386) omit="i386|x86_64" ;; arm | armel | armhf) omit="arm" ;; arm64 ) if arch-test -n armhf > /dev/null; then omit="arm|aarch64" else omit="aarch64" fi ;; mips | mipsel) omit="$DPKG_MAINTSCRIPT_ARCH" ;; ppc64 | powerpc) omit="ppc|ppc64|ppc64abi32" ;; ppc64el) omit="ppc64le" ;; s390x) omit="s390x" ;; sparc | sparc64) omit="sparc|sparc32plus|sparc64" ;; *) omit="$DPKG_MAINTSCRIPT_ARCH" ;; esac This logic is repeated in the prerm script so there is probably some scope in cleaning up and sharing the logic. -- System Information: Ubuntu Release: bionic Debian Release: buster/sid Architecture: arm64 I found this on bionic but the bug exists upstream as well: binfmt-support/bionic,now 2.1.8-2 arm64 [installed,automatic] qemu-user-static/bionic-updates,now 1:2.11+dfsg-1ubuntu7.10 arm64 [installed] -- no debconf information -- Alex Bennée
