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


From: post-factum
Subject: [Bug 1837218] Re: qemu segfaults after spice update with bochs-display
Date: Wed, 25 Nov 2020 13:19:27 -0000

The issue is not experienced any more.

** Changed in: qemu
       Status: Incomplete => Fix Released

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

Title:
  qemu segfaults after spice update with bochs-display

Status in QEMU:
  Fix Released

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.

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