** Description changed:

  Tested jammy-desktop-amd64.iso from 2022-04-05 on Ubuntu 21.10 with
  virt-manager. I created a virtual machine and selected "Ubuntu 21.04" as
  OS (which then uses pc-q35-6.0) and changed the video to virtio with 3D
  acceleration.
  
- gnome-shell also crashes with 3D acceleration disabled.
+ I tried all video models. Here is the result:
  
- After switching from virtio to Bochs, gnome-shell stopped crashing.
+ * Bochs: works and gnome-shell is stable
+ * QXL: Failed after "Try Ubuntu". Screen goes black.
+ * Ramfb: No screen change/update after GRUB.
+ * VGA: gnome-shell crashes
+ * Virtio with 3D acceleration: gnome-shell crashes
+ * Virtio without 3D acceleration: gnome-shell crashes
  
  ProblemType: Crash
  DistroRelease: Ubuntu 22.04
  Package: gnome-shell 42.0-1ubuntu1
  ProcVersionSignature: Ubuntu 5.15.0-23.23-generic 5.15.27
  Uname: Linux 5.15.0-23-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu80
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 1.468
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Apr  5 10:42:56 2022
  DisplayManager: gdm3
  ExecutablePath: /usr/bin/gnome-shell
  LiveMediaBuild: Ubuntu 22.04 LTS "Jammy Jellyfish" - Daily amd64 (20220405)
  ProcCmdline: gnome-shell --sm-disable --mode=ubiquity
  ProcEnviron:
   PATH=(custom, no user)
   LANG=C.UTF-8
   XDG_RUNTIME_DIR=<set>
  RelatedPackageVersions: mutter-common 42.0-1ubuntu1
  SegvAnalysis:
   Segfault happened at: 0x7ff155766f44:        mov    (%rsi),%rax
   PC (0x7ff155766f44) ok
   source "(%rsi)" (0x1bd441c00000) not located in a known VMA region (needed 
readable region)!
   destination "%rax" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: gnome-shell
  Stacktrace:
   #0  0x00007ff155766f44 in ?? ()
   No symbol table info available.
   Backtrace stopped: Cannot access memory at address 0x7fffd34c3ae0
  StacktraceTop: ?? ()
  Title: gnome-shell crashed with SIGSEGV
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
  separator:

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-shell in Ubuntu.
https://bugs.launchpad.net/bugs/1967853

Title:
  gnome-shell crashed with SIGSEGV

Status in gnome-shell package in Ubuntu:
  New

Bug description:
  Tested jammy-desktop-amd64.iso from 2022-04-05 on Ubuntu 21.10 with
  virt-manager. I created a virtual machine and selected "Ubuntu 21.04"
  as OS (which then uses pc-q35-6.0) and changed the video to virtio
  with 3D acceleration.

  I tried all video models. Here is the result:

  * Bochs: works and gnome-shell is stable
  * QXL: Failed after "Try Ubuntu". Screen goes black.
  * Ramfb: No screen change/update after GRUB.
  * VGA: gnome-shell crashes
  * Virtio with 3D acceleration: gnome-shell crashes
  * Virtio without 3D acceleration: gnome-shell crashes

  ProblemType: Crash
  DistroRelease: Ubuntu 22.04
  Package: gnome-shell 42.0-1ubuntu1
  ProcVersionSignature: Ubuntu 5.15.0-23.23-generic 5.15.27
  Uname: Linux 5.15.0-23-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu80
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 1.468
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Apr  5 10:42:56 2022
  DisplayManager: gdm3
  ExecutablePath: /usr/bin/gnome-shell
  LiveMediaBuild: Ubuntu 22.04 LTS "Jammy Jellyfish" - Daily amd64 (20220405)
  ProcCmdline: gnome-shell --sm-disable --mode=ubiquity
  ProcEnviron:
   PATH=(custom, no user)
   LANG=C.UTF-8
   XDG_RUNTIME_DIR=<set>
  RelatedPackageVersions: mutter-common 42.0-1ubuntu1
  SegvAnalysis:
   Segfault happened at: 0x7ff155766f44:        mov    (%rsi),%rax
   PC (0x7ff155766f44) ok
   source "(%rsi)" (0x1bd441c00000) not located in a known VMA region (needed 
readable region)!
   destination "%rax" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: gnome-shell
  Stacktrace:
   #0  0x00007ff155766f44 in ?? ()
   No symbol table info available.
   Backtrace stopped: Cannot access memory at address 0x7fffd34c3ae0
  StacktraceTop: ?? ()
  Title: gnome-shell crashed with SIGSEGV
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
  separator:

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