*** This bug is a duplicate of bug 1904337 ***
    https://bugs.launchpad.net/bugs/1904337

Public bug reported:

randomly crashes unity environment 
syslog output: 

Jan  7 13:50:35 l2 kernel: [77260.507747] compiz[87941]: segfault at 8 ip 
00007f652c64203a sp 00007fffb9d226b0 error 4 in 
libunityshell.so[7f652c546000+345000]
Jan  7 13:50:35 l2 kernel: [77260.507753] Code: 02 00 00 48 89 93 48 02 00 00 
48 85 ff 74 1b e8 9c b6 f5 ff 48 8b 7c 24 28 48 85 ff 74 05 e8 8d b6 f5 ff 48 
8b 83 40 02 00 00 <48> 8b 50 08 48 39 50 10 0f 84 1c 01 00 00 4c 8b 32 4d 85 f6 
0f 84
Jan  7 13:50:35 l2 compiz[87941]: ERROR 2021-01-07 13:50:35 
unity.decoration.shape DecorationsShape.cpp:73 Failed to get shape rectangles
Jan  7 13:50:35 l2 systemd[2213]: unity7.service: Main process exited, 
code=dumped, status=11/SEGV
Jan  7 13:50:35 l2 compiz[94552]: 2021-01-07 13:50:35,909 [70115788]   WARN - 
pl.local.NativeFileWatcherImpl - Watcher terminated with exit code 143
Jan  7 13:50:40 l2 unity-panel-ser[2885]: menus_destroyed: assertion 
'IS_WINDOW_MENU(wm)' failed
Jan  7 13:50:40 l2 systemd[2213]: unity7.service: Failed with result 
'core-dump'.
Jan  7 13:50:41 l2 systemd[2213]: unity7.service: Scheduled restart job, 
restart counter is at 2.
Jan  7 13:50:41 l2 systemd[2213]: Stopped target User systemd services for the 
Unity graphical session.
Jan  7 13:50:41 l2 systemd[2213]: Stopping User systemd services for the Unity 
graphical session.
Jan  7 13:50:41 l2 systemd[2213]: Stopped Unity Shell v7.
Jan  7 13:50:41 l2 systemd[2213]: Starting Unity Shell v7...
Jan  7 13:50:41 l2 compiz-profile-selector[152349]: OpenGL vendor string:   
NVIDIA Corporation
Jan  7 13:50:41 l2 compiz-profile-selector[152349]: OpenGL renderer string: 
GeForce GTX 960/PCIe/SSE2
Jan  7 13:50:41 l2 compiz-profile-selector[152349]: OpenGL version string:  
4.6.0 NVIDIA 455.38
Jan  7 13:50:41 l2 compiz-profile-selector[152349]: Not software rendered:    
#033[32;01myes#033[00m
Jan  7 13:50:41 l2 compiz-profile-selector[152349]: Not blacklisted:          
#033[32;01myes#033[00m
Jan  7 13:50:41 l2 compiz-profile-selector[152349]: GLX fbconfig:             
#033[32;01myes#033[00m
Jan  7 13:50:41 l2 compiz-profile-selector[152349]: GLX texture from pixmap:  
#033[32;01myes#033[00m
Jan  7 13:50:41 l2 compiz-profile-selector[152349]: GL npot or rect textures: 
#033[32;01myes#033[00m
Jan  7 13:50:41 l2 compiz-profile-selector[152349]: GL vertex program:        
#033[32;01myes#033[00m
Jan  7 13:50:41 l2 compiz-profile-selector[152349]: GL fragment program:      
#033[32;01myes#033[00m
Jan  7 13:50:41 l2 compiz-profile-selector[152349]: GL vertex buffer object:  
#033[32;01myes#033[00m
Jan  7 13:50:41 l2 compiz-profile-selector[152349]: GL framebuffer object:    
#033[32;01myes#033[00m
Jan  7 13:50:41 l2 compiz-profile-selector[152349]: GL version is 1.4+:       
#033[32;01myes#033[00m
Jan  7 13:50:41 l2 compiz-profile-selector[152349]: Unity 3D supported:       
#033[32;01myes#033[00m
Jan  7 13:50:41 l2 compiz-profile-selector[152348]: Using compiz profile 
'ubuntu:unity'
Jan  7 13:50:41 l2 compiz-profile-selector[152353]: 
dbus-update-activation-environment: setting COMPIZ_CONFIG_PROFILE=ubuntu
Jan  7 13:50:41 l2 compiz-profile-selector[152354]: 
dbus-update-activation-environment: setting UNITY_HAS_3D_SUPPORT=true
Jan  7 13:50:41 l2 compiz-profile-selector[152355]: 
dbus-update-activation-environment: setting UNITY_DEFAULT_PROFILE=unity
Jan  7 13:50:41 l2 compiz-profile-selector[152356]: compizconfig - Info: 
Backend     : gsettings
Jan  7 13:50:41 l2 compiz-profile-selector[152356]: compizconfig - Info: 
Integration : true
Jan  7 13:50:41 l2 compiz-profile-selector[152356]: compizconfig - Info: 
Profile     : unity
Jan  7 13:50:41 l2 compiz-profile-selector[152356]: We're already using profile 
'unity', no need to switch
Jan  7 13:50:41 l2 compiz-profile-selector[152360]: compizconfig - Info: 
Backend     : gsettings
Jan  7 13:50:41 l2 compiz-profile-selector[152360]: compizconfig - Info: 
Integration : true
Jan  7 13:50:41 l2 compiz-profile-selector[152360]: compizconfig - Info: 
Profile     : unity
Jan  7 13:50:41 l2 systemd[2213]: Started Unity Shell v7.
Jan  7 13:50:41 l2 systemd[2213]: Reached target User systemd services for the 
Unity graphical session.
Jan  7 13:50:41 l2 compiz[152364]: /usr/bin/compiz (core) - Info: Loading 
plugin: core
Jan  7 13:50:41 l2 compiz[152364]: /usr/bin/compiz (core) - Info: Starting 
plugin: core
Jan  7 13:50:41 l2 unity-panel-ser[2885]: menus_destroyed: assertion 
'IS_WINDOW_MENU(wm)' failed
Jan  7 13:50:41 l2 unity-panel-ser[2885]: message repeated 3 times: [ 
menus_destroyed: assertion 'IS_WINDOW_MENU(wm)' failed]
Jan  7 13:50:41 l2 hud-service[2995]: QCoreApplication::postEvent: Unexpected 
null receiver
Jan  7 13:50:41 l2 hud-service[2995]: QCoreApplication::postEvent: Unexpected 
null receiver
Jan  7 13:50:41 l2 unity-panel-ser[2885]: menus_destroyed: assertion 
'IS_WINDOW_MENU(wm)' failed
Jan  7 13:50:41 l2 unity-panel-ser[2885]: message repeated 5 times: [ 
menus_destroyed: assertion 'IS_WINDOW_MENU(wm)' failed]
Jan  7 13:50:41 l2 compiz[152364]: /usr/bin/compiz (core) - Info: Loading 
plugin: ccp
Jan  7 13:50:41 l2 compiz[152364]: /usr/bin/compiz (core) - Info: Starting 
plugin: ccp
Jan  7 13:50:41 l2 compiz[152364]: /usr/bin/compiz (core) - Info: Loading 
plugin: composite
Jan  7 13:50:41 l2 compiz[152364]: /usr/bin/compiz (core) - Info: Starting 
plugin: composite
Jan  7 13:50:41 l2 /usr/libexec/gdm-x-session[2311]: (--) NVIDIA(GPU-0): CRT-0: 
disconnected
Jan  7 13:50:41 l2 /usr/libexec/gdm-x-session[2311]: (--) NVIDIA(GPU-0): CRT-0: 
400.0 MHz maximum pixel clock

can replicate this as described here"

'Best way to replicate is to install `joystick` and run `ffmvforce test`
(or real force feedback device if you have one plugged in), now the
desktop crashes. Sometimes other programs (especially if they’re run
with Wine) present this behavior. I’ve also tried on liveusb on both
Intel and Amd machines with the same result.'

https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1904337

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: xorg 1:7.7+19ubuntu15
ProcVersionSignature: Ubuntu 5.8.0-34.37-generic 5.8.18
Uname: Linux 5.8.0-34-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
.proc.driver.nvidia.capabilities.gpu0: Error: [Errno 21] Is a directory: 
'/proc/driver/nvidia/capabilities/gpu0'
.proc.driver.nvidia.capabilities.mig: Error: [Errno 21] Is a directory: 
'/proc/driver/nvidia/capabilities/mig'
.proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] Is a directory: 
'/proc/driver/nvidia/gpus/0000:01:00.0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.suspend: suspend hibernate resume
.proc.driver.nvidia.suspend_depth: default modeset uvm
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module  455.38  Thu Oct 22 06:06:59 
UTC 2020
 GCC version:  gcc version 10.2.0 (Ubuntu 10.2.0-13ubuntu1)
.tmp.unity_support_test.0:
 
ApportVersion: 2.20.11-0ubuntu50.3
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity:Unity7:ubuntu
Date: Thu Jan  7 14:02:16 2021
DistUpgraded: Fresh install
DistroCodename: groovy
DistroVariant: ubuntu
DkmsStatus:
 nvidia, 455.38, 5.8.0-33-generic, x86_64: installed
 nvidia, 455.38, 5.8.0-34-generic, x86_64: installed
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 NVIDIA Corporation GM206 [GeForce GTX 960] [10de:1401] (rev a1) (prog-if 00 
[VGA controller])
   Subsystem: Micro-Star International Co., Ltd. [MSI] GM206 [GeForce GTX 960] 
[1462:3201]
MachineType: MSI MS-7850
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.8.0-34-generic 
root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/16/2016
dmi.bios.release: 4.6
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: V4.11
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: Z97 PC Mate(MS-7850)
dmi.board.vendor: MSI
dmi.board.version: 1.0
dmi.chassis.asset.tag: To be filled by O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: MSI
dmi.chassis.version: 1.0
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrV4.11:bd02/16/2016:br4.6:svnMSI:pnMS-7850:pvr1.0:rvnMSI:rnZ97PCMate(MS-7850):rvr1.0:cvnMSI:ct3:cvr1.0:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: MS-7850
dmi.product.sku: To be filled by O.E.M.
dmi.product.version: 1.0
dmi.sys.vendor: MSI
version.compiz: compiz 1:0.9.14.1+20.10.20200813-0ubuntu1
version.libdrm2: libdrm2 2.4.102-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.1-1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20200714-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

** Affects: ubuntu
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug compiz-0.9 groovy libunityshell ubuntu unity

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https://bugs.launchpad.net/bugs/1910532

Title:
  Compiz crash ubuntu 20.10 unity error 4 in libunityshell.so

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