[Qemu-devel] [Bug 1459626] Re: emacs (gtk3) core dumped with -vga qxl

[Thomas Huth]

Looking through old bug tickets... can you still reproduce this issue
with the latest versions of QEMU, x11, kernel, spice, etc.? Or could we
close this ticket nowadays?

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

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Title:
  emacs (gtk3) core dumped with -vga qxl

Status in QEMU:
  Incomplete

Bug description:
  Emacs (gtk3) exited with bus error and core dumped with -vga qxl. If I
  use the builtin modesetting xorg driver, emacs could survive for a
  short while sometimes. If I use xf86-video-qxl (git r587.8babd05), it
  dies right away with the same error. It seems to corrupt xorg at some
  point as well, because sometimes I cannot exit i3 properly and gnome-
  terminal can go crazy afterwards (all letters become empty retangles).

  It doesn't seem to happen with other -vga driver.

  Error message is attached. Can also provide the core dumped but it's
  of 47M.

  I started the vm as root (sudo) with the following command: qemu-
  system-x86_64 -enable-kvm -m 4G -virtfs
  local,mount_tag=qemu,security_model=passthrough,path=/mnt/qemu/
  -kernel /mnt/qemu/boot/vmlinuz-linux -initrd /mnt/qemu/boot/initramfs-
  linux-fallback.img -append 'rw root=qemu fstype=9p' -usbdevice tablet
  -vga qxl -spice port=12345,disable-ticketing

  /mnt/qemu is a btrfs snapshot of the subvolume used as the host root

  Arch Linux, qemu 2.3.0, emacs 24.5, xorg-server 1.17.1, linux 4.0.4,
  gtk 3.16.3, glib 2.44.1

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