Thank you for the report. Given that this is an upstream regression and there is a related upstream bug about it, I believe it's best to wait for their input/feedback before moving forward.
** Also affects: qemu Importance: Undecided Status: New ** No longer affects: qemu ** Changed in: qemu (Ubuntu) Assignee: (unassigned) => Sergio Durigan Junior (sergiodj) -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/2065579 Title: [UBUNTU 22.04] OS guest boot issues on 9p filesystem Status in Ubuntu on IBM z Systems: New Status in qemu package in Ubuntu: New Bug description: === Reported by <d.herrendoer...@de.ibm.com> - 2024-05-13 03:53:01 === ---Problem Description--- OS guest boot issues on 9p filesystem due to unix domain sockets open failure Contact Information = d.herrendoer...@de.ibm.com Machine Type = 3931-7G4 ---uname output--- 5.15.0-92-generic #102-Ubuntu SMP Wed Jan 10 09:35:24 UTC 2024 s390x s390x s390x GNU/Linux ---Steps to Reproduce--- #!/bin/bash # Cleanup target dir [ -d ./target ] && rm -rf target mkdir target # Add configuration updates mkdir -p ./target/etc/initramfs-tools/ echo 9p >> ./target/etc/initramfs-tools/modules echo 9pnet_virtio >> ./target/etc/initramfs-tools/modules # Add the test script cat > ./target/test_init << EOF #!/bin/bash echo "Test for unix domain sockets" nc -Ul /socket & sleep 1 echo "Sockets work" | nc -UN /socket || echo "Sockets fail" echo o > /proc/sysrq-trigger sleep 999 EOF chmod 700 ./target/test_init # Create an Ubuntu 23.10 around it echo "Creating Ubuntu target OS" debootstrap --variant=minbase\ --include=udev,kmod,initramfs-tools,systemd,netcat-openbsd,linux-image-generic \ --exclude=man,bash-completion \ mantic ./target > /dev/null || exit 1 # Run the test in 9p forwarded filesystem echo "Running OS in qemu" qemu-system-s390x \ -m 8192 \ -smp 4 \ -nodefaults -nographic -no-reboot -no-user-config \ -kernel ./target/boot/vmlinuz \ -initrd ./target/boot/initrd.img \ -append 'root=fsRoot rw rootfstype=9p rootflags=trans=virtio,version=9p2000.L,msize=512000,cache=mmap,posixacl console=ttysclp0 init=/test_init quiet' \ -fsdev local,security_model=passthrough,multidevs=remap,id=fsdev-fsRoot,path=./target \ -device virtio-9p-pci,id=fsRoot,fsdev=fsdev-fsRoot,mount_tag=fsRoot \ -device virtio-serial-ccw -device sclpconsole,chardev=console \ -chardev stdio,id=console,signal=off ---Debugger--- A debugger is not configured Userspace rpm: qemu-(current).deb Userspace tool common name: qemu Userspace tool obtained from project website: na The userspace tool has the following bit modes: both *Additional Instructions for d.herrendoer...@de.ibm.com: -Attach ltrace and strace of userspace application. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/2065579/+subscriptions