graphic: 0.870 instruction: 0.712 device: 0.644 mistranslation: 0.535 boot: 0.491 semantic: 0.422 other: 0.344 socket: 0.322 network: 0.280 vnc: 0.220 assembly: 0.075 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.]