The attached patch fixes the issue for me. ** Patch added: "qemu-5.0.0-ofd-fcntl.patch" https://bugs.launchpad.net/qemu/+bug/1893010/+attachment/5405131/+files/qemu-5.0.0-ofd-fcntl.patch
-- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1893010 Title: qemu linux-user doesn't support OFD fcntl locks Status in QEMU: New Bug description: "Open file description locks (non-POSIX)", as they are described in fcntl(2) man page, aren't supported by qemu-user and attempting to use those results in EINVAL. I'm on Gentoo with latest QEMU version currently available (5.0.0-r2), and trying to emulate ppc64 and s390x on x86_64. Looking at linux-user/syscall.c, I'm guessing the issue is in (at least) `target_to_host_fcntl_cmd` where switch reaches the default clause as there're no cases for F_OFD_SETLK / F_OFD_SETLKW / F_OFD_GETLK. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1893010/+subscriptions
