graphic: 0.870 architecture: 0.787 device: 0.644 mistranslation: 0.535 boot: 0.491 files: 0.459 semantic: 0.422 PID: 0.418 user-level: 0.393 ppc: 0.351 socket: 0.322 performance: 0.298 arm: 0.284 network: 0.280 debug: 0.248 register: 0.242 x86: 0.242 TCG: 0.239 permissions: 0.228 vnc: 0.220 virtual: 0.216 i386: 0.148 hypervisor: 0.147 peripherals: 0.085 risc-v: 0.078 assembly: 0.075 kernel: 0.047 VMM: 0.032 KVM: 0.008 s390x binaries segfault Hello World appears to segfault with qemu s390x, on a Debian 10.0.0 Buster amd64 host. $ cat hello.cpp #include using std::cout; int main() { cout << "Hello World!\n"; return 0; } $ s390x-linux-gnu-g++ -o hello hello.cpp $ qemu-s390x-static hello Segmentation fault Does "make check-tcg" work in this case? It works for me here. Which QEMU version are you using here? Can you reproduce this issue with the latest upstream QEMU ? ... otherwise, please report this issue to the Debian bug tracker instead. [Expired for QEMU because there has been no activity for 60 days.]