[Bug 1837218] Re: qemu segfaults after spice update with bochs-display

[Thomas Huth]

The QEMU project is currently considering to move its bug tracking to another 
system. For this we need to know which bugs are still valid and which could be 
closed already. Thus we are setting older bugs to "Incomplete" now.
If you still think this bug report here is valid, then please switch the state 
back to "New" within the next 60 days, otherwise this report will be marked as 
"Expired". Or mark it as "Fix Released" if the problem has been solved with a 
newer version of QEMU already. Thank you and sorry for the inconvenience.

** Changed in: qemu
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1837218

Title:
  qemu segfaults after spice update with bochs-display

Status in QEMU:
  Incomplete

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:~ » /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.

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