I've also built qemu v4.0.0 with debug info, and the issue is not reproducible with such a build.
-- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1837218 Title: qemu segfaults after spice update with bochs-display Status in QEMU: New Bug description: Description: qemu segfaults after latest spice update with bochs-display. Downgrading spice solves the issue. Switching to qxl-vga and/or virtio-gpu also works even with new spice. Additional info: * package version(s) spice 0.14.2-1 (0.14.0 is unaffected) qemu-headless 4.0.0-3 * config and/or log files etc. pf@defiant:~ ยป /mnt/vms/02-archlinux/start.sh /mnt/vms/02-archlinux/start.sh: line 41: 13501 Segmentation fault (core dumped) qemu-system-x86_64 -name "${NAME}" -display none -spice ipv4,addr=127.0.0.1,port=270${ID},disable-ticketing,disable-copy-paste,disable-agent-file-xfer,agent-mouse=off -serial mon:telnet:127.0.0.1:280${ID},server,nowait,nodelay -gdb tcp::260${ID} -nodefaults -machine q35,accel=kvm -cpu max -smp cores=${CPU},threads=1,sockets=1 -m ${MEM} -drive if=pflash,format=raw,readonly,file="${BIOS}" -drive if=pflash,format=raw,file="${VARS}" -device virtio-rng -device bochs-display -device virtio-keyboard -netdev bridge,id=bridge.0,br=vm0 -device virtio-net,mac=${_MAC}:01,netdev=bridge.0,mq=on,vectors=${_VECTORS} -fsdev local,id="${NAME}",path="${SHARED}",security_model=mapped,writeout=immediate -device virtio-9p-pci,fsdev="${NAME}",mount_tag="shared" -device virtio-scsi,id=scsi,num_queues=${CPU},vectors=${_VECTORS} -device scsi-hd,drive=hd1 -drive if=none,media=disk,id=hd1,file="${DISK1}",format=raw,cache=directsync,discard=unmap,detect-zeroes=unmap -device scsi-hd,drive=hd2 -drive if=none,media=disk,id=hd2,file="${DISK2}",format=raw,cache=directsync,discard=unmap,detect-zeroes=unmap -device scsi-cd,drive=cd1 -drive if=none,media=cdrom,id=cd1,file="${CDROM1}",format=raw,cache=directsync Steps to reproduce: Update spice, launch a VM like the above and observe a segfault. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1837218/+subscriptions