I only have one s390x guest and adding another would be painful due to the slowness of its emulation :) but I have just tried removing all of /etc/ssh and reinstalling openssh-client/openssh-server, same crash.
To be clear, this is only happening on my s390x guest. I have a few other non-x86 qemu guests (arm64, ppc64el, riscv64, etc) which have also been upgraded to jammy, none of which have this problem. So I'm willing to bet this is more of a kernel or qemu problem and that openssh is just a symptom. (Though it seems to be a recurring indicative symptom... ISTR openssh segfaults during the bootstrap of riscv64 on qemu; William Grant may be able to chime in.) I've attached my libvirt definition in case it's relevant, but it's pretty standard. ** Attachment added: "s390x-dev.xml" https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1970076/+attachment/5584015/+files/s390x-dev.xml -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1970076 Title: "User process fault: interruption code 0011 ilc:3" on SSH client/server upon Jammy upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssh/+bug/1970076/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs