** Changed in: ubiquity (Ubuntu)
   Importance: Medium => High

** Changed in: ubiquity (Ubuntu)
       Status: New => Confirmed

** Description changed:

- Crashed during a screen reader installation in install only mode
+ == Test Case ==
+ 1. Boot to ubiquity-dm
+ 2. Enable the screenreader (Alt+Super+S)
+ 3. Select "Install Ubuntu"
+ 4. Proceed with all the steps of the installer
+ 
+ = Actual Result = 
+ During installation, when the slideshow is running, this crash occurs.
+ 
  
  ProblemType: Crash
  DistroRelease: Ubuntu 20.04
  Package: ubiquity 20.04.9
  ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
  Uname: Linux 5.4.0-21-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu22
  Architecture: amd64
  CasperVersion: 1.442
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Apr  3 10:55:58 2020
  ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
  ExecutableTimestamp: 1585729537
  InstallCmdLine: file=/cdrom/preseed/ubuntu.seed initrd=/casper/initrd quiet 
splash --- maybe-ubiquity
  InterpreterPath: /usr/bin/python3.8
  LiveMediaBuild: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402)
  ProcCmdline: /usr/bin/python3 /usr/lib/ubiquity/bin/ubiquity --greeter --only
  ProcCwd: /
  ProcEnviron:
-  PATH=(custom, no user)
-  XDG_RUNTIME_DIR=<set>
-  LANG=C.UTF-8
+  PATH=(custom, no user)
+  XDG_RUNTIME_DIR=<set>
+  LANG=C.UTF-8
  Python3Details: /usr/bin/python3.8, Python 3.8.2, python3-minimal, 
3.8.2-0ubuntu1
  PythonDetails: N/A
  SegvAnalysis:
-  Segfault happened at: 0x7fbd15f8f16a <g_type_check_instance_is_a+186>:       
mov    %rax,-0x20(%rsp)
-  PC (0x7fbd15f8f16a) ok
-  source "%rax" ok
-  destination "-0x20(%rsp)" (0x7ffe329d3ff0) not located in a known VMA region 
(needed writable region)!
+  Segfault happened at: 0x7fbd15f8f16a <g_type_check_instance_is_a+186>:       
mov    %rax,-0x20(%rsp)
+  PC (0x7fbd15f8f16a) ok
+  source "%rax" ok
+  destination "-0x20(%rsp)" (0x7ffe329d3ff0) not located in a known VMA region 
(needed writable region)!
  SegvReason: writing unknown VMA
  Signal: 11
  SourcePackage: ubiquity
  StacktraceTop:
-  g_type_check_instance_is_a () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
-  atk_component_get_extents () from /lib/x86_64-linux-gnu/libatk-1.0.so.0
-  ?? () from /lib/x86_64-linux-gnu/libgtk-3.so.0
-  atk_component_get_extents () from /lib/x86_64-linux-gnu/libatk-1.0.so.0
-  atk_component_get_extents () from /lib/x86_64-linux-gnu/libatk-1.0.so.0
+  g_type_check_instance_is_a () from /lib/x86_64-linux-gnu/libgobject-2.0.so.0
+  atk_component_get_extents () from /lib/x86_64-linux-gnu/libatk-1.0.so.0
+  ?? () from /lib/x86_64-linux-gnu/libgtk-3.so.0
+  atk_component_get_extents () from /lib/x86_64-linux-gnu/libatk-1.0.so.0
+  atk_component_get_extents () from /lib/x86_64-linux-gnu/libatk-1.0.so.0
  Title: ubiquity crashed with SIGSEGV in g_type_check_instance_is_a()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
-  
+ 
  separator:

** Also affects: atk1.0 (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: atk1.0 (Ubuntu)
       Status: New => Confirmed

** Changed in: atk1.0 (Ubuntu)
   Importance: Undecided => High

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https://bugs.launchpad.net/bugs/1870508

Title:
  ubiquity crashed with SIGSEGV in g_type_check_instance_is_a()

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