Public bug reported:

Apparmor crashes GPU acceleration

Firefox GPU acceleration started crashing after updating from Ubuntu
22.10 to 23.04.

$ lsb_release -rd
No LSB modules are available.
Description:    Ubuntu 23.04
Release:        23.04

$ apt-cache policy firefox
firefox:
  Installed: 113.0+build1-0ubuntu0.23.04.1~mt1
  Candidate: 113.0+build1-0ubuntu0.23.04.1~mt1
  Version table:
     1:1snap1-0ubuntu3 500
        500 https://gpl.savoirfairelinux.net/pub/mirrors/ubuntu lunar/main 
amd64 Packages
 *** 113.0+build1-0ubuntu0.23.04.1~mt1 999
        500 https://ppa.launchpadcontent.net/mozillateam/ppa/ubuntu lunar/main 
amd64 Packages
        100 /var/lib/dpkg/status

$ apt-cache policy libglx-mesa0 
libglx-mesa0:
  Installed: 23.0.3~kisak1~k
  Candidate: 23.0.3~kisak1~k
  Version table:
 *** 23.0.3~kisak1~k 500
        500 https://ppa.launchpadcontent.net/kisak/kisak-mesa/ubuntu 
kinetic/main amd64 Packages
        100 /var/lib/dpkg/status
     23.0.2-1ubuntu1 500
        500 https://gpl.savoirfairelinux.net/pub/mirrors/ubuntu lunar/main 
amd64 Packages

$ apt-cache policy apparmor
apparmor:
  Installed: 3.0.8-1ubuntu2
  Candidate: 3.0.8-1ubuntu2
  Version table:
 *** 3.0.8-1ubuntu2 500
        500 https://gpl.savoirfairelinux.net/pub/mirrors/ubuntu lunar/main 
amd64 Packages
        100 /var/lib/dpkg/status

# Expected behavior

Firefox should not crash in WebGL aquarium and continue to work properly
like on 22.10. It should successfully use my GPU to make scrolling
smooths and save battery when watching videos.

# Actual behavior

1. Startup takes a second or two longer than usual
2. Typing in the address bar is slow
3. Scrolling takes 400% CPU usage
4. Scrolling stutters
5. VAAPI on https://www.w3schools.com/html/html5_video.asp is no longer used as 
shown in intel_gpu_top
6. Fans start spinning and battery goes down fast
7. glxtest failures had to be manually deleted in about:config
8. Only a few fish in WebGL aquarium 
(https://webglsamples.org/aquarium/aquarium.html) load before Firefox 
force-closes with the message: "Mozilla Crash Reporter Firefox had a problem 
and crashed. Unfortunately, the crash reporter is unable to submit a crash 
report. Details: The application did not leave a crash dump file. Close"
9. The following lines are relevant in dmesg after clearing it:

[22157.695580] kauditd_printk_skb: 6 callbacks suppressed
[22157.695582] audit: type=1400 audit(1683153440.994:2583): apparmor="DENIED" 
operation="capable" class="cap" profile="firefox" pid=15898 comm="firefox" 
capability=21  capname="sys_admin"
[22157.739641] audit: type=1400 audit(1683153441.038:2584): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/sys/devices/pci0000:00/0000:00:02.0/revision" pid=15901 comm="firefox" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[22157.739647] audit: type=1400 audit(1683153441.038:2585): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/sys/devices/pci0000:00/0000:00:02.0/config" pid=15901 comm="firefox" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[22157.739719] audit: type=1400 audit(1683153441.038:2586): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/sys/devices/pci0000:00/0000:00:02.0/revision" pid=15901 comm="firefox" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[22157.739729] audit: type=1400 audit(1683153441.038:2587): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/sys/devices/pci0000:00/0000:00:02.0/config" pid=15901 comm="firefox" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[22157.769407] audit: type=1400 audit(1683153441.070:2588): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/proc/15898/oom_score_adj" pid=15898 comm="firefox" requested_mask="w" 
denied_mask="w" fsuid=1000 ouid=1000
[22157.773042] audit: type=1400 audit(1683153441.074:2589): apparmor="DENIED" 
operation="file_mmap" class="file" profile="firefox//lsb_release" 
name="/usr/bin/dash" pid=15934 comm="lsb_release" requested_mask="r" 
denied_mask="r" fsuid=1000 ouid=0
[22157.974718] audit: type=1400 audit(1683153441.274:2590): apparmor="DENIED" 
operation="open" class="file" profile="firefox" name="/proc/15898/cgroup" 
pid=15898 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=1000
[22157.996255] audit: type=1400 audit(1683153441.298:2591): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/sys/devices/pci0000:00/0000:00:02.0/revision" pid=15898 comm="Renderer" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[22157.996260] audit: type=1400 audit(1683153441.298:2592): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/sys/devices/pci0000:00/0000:00:02.0/config" pid=15898 comm="Renderer" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[22163.478994] kauditd_printk_skb: 84 callbacks suppressed
[22163.478997] audit: type=1400 audit(1683153446.778:2677): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/25/11491cb402d47ca04c0196ff7c4dc9684f1f97.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
[22163.597737] audit: type=1400 audit(1683153446.898:2678): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/proc/16052/oom_score_adj" pid=15898 comm="firefox" requested_mask="w" 
denied_mask="w" fsuid=1000 ouid=1000
[22163.602664] audit: type=1400 audit(1683153446.902:2679): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/proc/16019/oom_score_adj" pid=15898 comm="firefox" requested_mask="w" 
denied_mask="w" fsuid=1000 ouid=1000
[22163.681703] audit: type=1400 audit(1683153446.982:2680): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/3c/8574ff630bb2056a665c574f9820f176d7913a.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
[22163.716158] audit: type=1400 audit(1683153447.018:2681): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/24/20b4d21bcd624d71d3ce4f474b5be6b28bbc8e.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
[22163.772912] audit: type=1400 audit(1683153447.074:2682): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/63/f955ef3504ae1f103040d7c24f2ccb6c2dc324.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
[22163.821410] audit: type=1400 audit(1683153447.122:2683): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/cc/26d55b3b5c18f145b99c95928da4078d01e433.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
[22163.934506] audit: type=1400 audit(1683153447.234:2684): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/71/7a666e633ee8a8408541d19257f35460da1921.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
[22164.011166] audit: type=1400 audit(1683153447.310:2685): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/6f/a3c5a35037023fcb4630ee71df1e17107a0132.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
[22164.049428] audit: type=1400 audit(1683153447.350:2686): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/cf/d8f7837a74690386158ffe0b8a009a74112c3e.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000

`apport-bug firefox` is not working: "Apport The problem cannot be reported: 
This problem report is damaged and cannot be processed. PermissionError(13, 
'Permission denied')"
`LIBGL_ALWAYS_INDIRECT=1 firefox` stops the crashing but WebGL aquarium runs at 
12 FPS instead of 60 FPS.

# Workaround

`sudo aa-teardown` fixes the problem until the next reboot. It's regrettable 
that this weakens security, but at least I won't get nauseous from stuttering 
scrolling.
--- 
ProblemType: Bug
AddonCompatCheckDisabled: False
ApportVersion: 2.26.1-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  home       1679 F.... wireplumber
 /dev/snd/seq:        home       1678 F.... pipewire
BuildID: 20230501151611
CasperMD5CheckResult: unknown
Channel: release
CurrentDesktop: KDE
DefaultProfileExtensions: extensions.sqlite corrupt or missing
DefaultProfileIncompatibleExtensions: Unavailable (corrupt or non-existant 
compatibility.ini or extensions.sqlite)
DefaultProfileLocales: extensions.sqlite corrupt or missing
DefaultProfilePrefErrors: Unexpected character ',' before close parenthesis @ 
/usr/lib/firefox/omni.ja:greprefs.js:294
DefaultProfilePrefSources:
 /usr/lib/firefox/defaults/pref/vendor-gre.js
 /usr/lib/firefox/defaults/pref/channel-prefs.js
DefaultProfilePrefs: network.manage-offline-status: true 
(/usr/lib/firefox/defaults/pref/vendor-gre.js)
DefaultProfileThemes: extensions.sqlite corrupt or missing
DistroRelease: Ubuntu 23.04
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
Package: firefox 113.0+build1-0ubuntu0.23.04.1~mt1 [origin: LP-PPA-mozillateam]
PackageArchitecture: amd64
ProcCmdline: BOOT_IMAGE=/vmlinuz-6.2.14-surface root=/dev/nvme0n1p8 ro text 
i915.enable_guc=3 usbcore.autosuspend=-1 reboot=pci
ProcVersionSignature: Error: [Errno 2] No such file or directory: 
'/proc/version_signature'
Profile0Extensions: extensions.sqlite corrupt or missing
Profile0IncompatibleExtensions: Unavailable (corrupt or non-existant 
compatibility.ini or extensions.sqlite)
Profile0Locales: extensions.sqlite corrupt or missing
Profile0PrefErrors: Unexpected character ',' before close parenthesis @ 
/usr/lib/firefox/omni.ja:greprefs.js:294
Profile0PrefSources:
 /usr/lib/firefox/defaults/pref/vendor-gre.js
 /usr/lib/firefox/defaults/pref/channel-prefs.js
 prefs.js
Profile0Themes: extensions.sqlite corrupt or missing
Profiles:
 Profile1 (Default) - LastVersion=None/None (Out of date)
 Profile0 - LastVersion=113.0/20230501151611 (In use)
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No 
PulseAudio daemon running, or not running as session daemon.
RunningIncompatibleAddons: False
Tags: lunar third-party-packages wayland-session release-channel
Uname: Linux 6.2.14-surface x86_64
UnreportableReason: This does not seem to be an official Ubuntu package. Please 
retry after updating the indexes of available packages, if that does not work 
then remove related third party packages and try again.
UpgradeStatus: Upgraded to lunar on 2023-05-02 (1 days ago)
UserGroups: dialout docker kvm lpadmin lxd plugdev sudo systemd-journal video 
wireshark
_MarkForUpload: True
dmi.bios.date: 07/08/2022
dmi.bios.vendor: Microsoft Corporation
dmi.bios.version: 15.11.140
dmi.board.name: Surface Pro 7
dmi.board.vendor: Microsoft Corporation
dmi.chassis.type: 9
dmi.chassis.vendor: Microsoft Corporation
dmi.modalias: 
dmi:bvnMicrosoftCorporation:bvr15.11.140:bd07/08/2022:svnMicrosoftCorporation:pnSurfacePro7:pvr124I00046T000M0100000D0B07F0C05P48S1E0Y0K0U06R1:rvnMicrosoftCorporation:rnSurfacePro7:rvr:cvnMicrosoftCorporation:ct9:cvr:skuSurface_Pro_7_1866:
dmi.product.family: Surface
dmi.product.name: Surface Pro 7
dmi.product.sku: Surface_Pro_7_1866
dmi.product.version: 
124I:00046T:000M:0100000D:0B:07F:0C:05P:48S:1E:0Y:0K:0U:06R:1
dmi.sys.vendor: Microsoft Corporation

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-collected lunar release-channel third-party-packages 
wayland-session

** Tags added: apport-collected lunar release-channel third-party-
packages wayland-session

** Description changed:

  Apparmor crashes GPU acceleration
  
  Firefox GPU acceleration started crashing after updating from Ubuntu
  22.10 to 23.04.
  
  $ lsb_release -rd
  No LSB modules are available.
  Description:    Ubuntu 23.04
  Release:        23.04
  
  $ apt-cache policy firefox
  firefox:
    Installed: 113.0+build1-0ubuntu0.23.04.1~mt1
    Candidate: 113.0+build1-0ubuntu0.23.04.1~mt1
    Version table:
       1:1snap1-0ubuntu3 500
          500 https://gpl.savoirfairelinux.net/pub/mirrors/ubuntu lunar/main 
amd64 Packages
   *** 113.0+build1-0ubuntu0.23.04.1~mt1 999
          500 https://ppa.launchpadcontent.net/mozillateam/ppa/ubuntu 
lunar/main amd64 Packages
          100 /var/lib/dpkg/status
  
  $ apt-cache policy libglx-mesa0 
  libglx-mesa0:
    Installed: 23.0.3~kisak1~k
    Candidate: 23.0.3~kisak1~k
    Version table:
   *** 23.0.3~kisak1~k 500
          500 https://ppa.launchpadcontent.net/kisak/kisak-mesa/ubuntu 
kinetic/main amd64 Packages
          100 /var/lib/dpkg/status
       23.0.2-1ubuntu1 500
          500 https://gpl.savoirfairelinux.net/pub/mirrors/ubuntu lunar/main 
amd64 Packages
  
  $ apt-cache policy apparmor
  apparmor:
    Installed: 3.0.8-1ubuntu2
    Candidate: 3.0.8-1ubuntu2
    Version table:
   *** 3.0.8-1ubuntu2 500
          500 https://gpl.savoirfairelinux.net/pub/mirrors/ubuntu lunar/main 
amd64 Packages
          100 /var/lib/dpkg/status
  
  # Expected behavior
  
  Firefox should not crash in WebGL aquarium and continue to work properly
  like on 22.10. It should successfully use my GPU to make scrolling
  smooths and save battery when watching videos.
  
  # Actual behavior
  
  1. Startup takes a second or two longer than usual
  2. Typing in the address bar is slow
  3. Scrolling takes 400% CPU usage
  4. Scrolling stutters
  5. VAAPI on https://www.w3schools.com/html/html5_video.asp is no longer used 
as shown in intel_gpu_top
  6. Fans start spinning and battery goes down fast
  7. glxtest failures had to be manually deleted in about:config
  8. Only a few fish in WebGL aquarium 
(https://webglsamples.org/aquarium/aquarium.html) load before Firefox 
force-closes with the message: "Mozilla Crash Reporter Firefox had a problem 
and crashed. Unfortunately, the crash reporter is unable to submit a crash 
report. Details: The application did not leave a crash dump file. Close"
  9. The following lines are relevant in dmesg after clearing it:
  
  [22157.695580] kauditd_printk_skb: 6 callbacks suppressed
  [22157.695582] audit: type=1400 audit(1683153440.994:2583): apparmor="DENIED" 
operation="capable" class="cap" profile="firefox" pid=15898 comm="firefox" 
capability=21  capname="sys_admin"
  [22157.739641] audit: type=1400 audit(1683153441.038:2584): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/sys/devices/pci0000:00/0000:00:02.0/revision" pid=15901 comm="firefox" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
  [22157.739647] audit: type=1400 audit(1683153441.038:2585): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/sys/devices/pci0000:00/0000:00:02.0/config" pid=15901 comm="firefox" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
  [22157.739719] audit: type=1400 audit(1683153441.038:2586): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/sys/devices/pci0000:00/0000:00:02.0/revision" pid=15901 comm="firefox" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
  [22157.739729] audit: type=1400 audit(1683153441.038:2587): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/sys/devices/pci0000:00/0000:00:02.0/config" pid=15901 comm="firefox" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
  [22157.769407] audit: type=1400 audit(1683153441.070:2588): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/proc/15898/oom_score_adj" pid=15898 comm="firefox" requested_mask="w" 
denied_mask="w" fsuid=1000 ouid=1000
  [22157.773042] audit: type=1400 audit(1683153441.074:2589): apparmor="DENIED" 
operation="file_mmap" class="file" profile="firefox//lsb_release" 
name="/usr/bin/dash" pid=15934 comm="lsb_release" requested_mask="r" 
denied_mask="r" fsuid=1000 ouid=0
  [22157.974718] audit: type=1400 audit(1683153441.274:2590): apparmor="DENIED" 
operation="open" class="file" profile="firefox" name="/proc/15898/cgroup" 
pid=15898 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=1000
  [22157.996255] audit: type=1400 audit(1683153441.298:2591): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/sys/devices/pci0000:00/0000:00:02.0/revision" pid=15898 comm="Renderer" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
  [22157.996260] audit: type=1400 audit(1683153441.298:2592): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/sys/devices/pci0000:00/0000:00:02.0/config" pid=15898 comm="Renderer" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
  [22163.478994] kauditd_printk_skb: 84 callbacks suppressed
  [22163.478997] audit: type=1400 audit(1683153446.778:2677): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/25/11491cb402d47ca04c0196ff7c4dc9684f1f97.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
  [22163.597737] audit: type=1400 audit(1683153446.898:2678): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/proc/16052/oom_score_adj" pid=15898 comm="firefox" requested_mask="w" 
denied_mask="w" fsuid=1000 ouid=1000
  [22163.602664] audit: type=1400 audit(1683153446.902:2679): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/proc/16019/oom_score_adj" pid=15898 comm="firefox" requested_mask="w" 
denied_mask="w" fsuid=1000 ouid=1000
  [22163.681703] audit: type=1400 audit(1683153446.982:2680): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/3c/8574ff630bb2056a665c574f9820f176d7913a.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
  [22163.716158] audit: type=1400 audit(1683153447.018:2681): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/24/20b4d21bcd624d71d3ce4f474b5be6b28bbc8e.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
  [22163.772912] audit: type=1400 audit(1683153447.074:2682): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/63/f955ef3504ae1f103040d7c24f2ccb6c2dc324.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
  [22163.821410] audit: type=1400 audit(1683153447.122:2683): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/cc/26d55b3b5c18f145b99c95928da4078d01e433.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
  [22163.934506] audit: type=1400 audit(1683153447.234:2684): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/71/7a666e633ee8a8408541d19257f35460da1921.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
  [22164.011166] audit: type=1400 audit(1683153447.310:2685): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/6f/a3c5a35037023fcb4630ee71df1e17107a0132.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
  [22164.049428] audit: type=1400 audit(1683153447.350:2686): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/cf/d8f7837a74690386158ffe0b8a009a74112c3e.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
  
  `apport-bug firefox` is not working: "Apport The problem cannot be reported: 
This problem report is damaged and cannot be processed. PermissionError(13, 
'Permission denied')"
  `LIBGL_ALWAYS_INDIRECT=1 firefox` stops the crashing but WebGL aquarium runs 
at 12 FPS instead of 60 FPS.
  
  # Workaround
  
- `sudo aa-teardown` fixes the problem until the next reboot. It's
- regrettable that this weakens security, but at least I won't get
- nauseous from stuttering scrolling.
+ `sudo aa-teardown` fixes the problem until the next reboot. It's regrettable 
that this weakens security, but at least I won't get nauseous from stuttering 
scrolling.
+ --- 
+ ProblemType: Bug
+ AddonCompatCheckDisabled: False
+ ApportVersion: 2.26.1-0ubuntu2
+ Architecture: amd64
+ AudioDevicesInUse:
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  home       1679 F.... wireplumber
+  /dev/snd/seq:        home       1678 F.... pipewire
+ BuildID: 20230501151611
+ CasperMD5CheckResult: unknown
+ Channel: release
+ CurrentDesktop: KDE
+ DefaultProfileExtensions: extensions.sqlite corrupt or missing
+ DefaultProfileIncompatibleExtensions: Unavailable (corrupt or non-existant 
compatibility.ini or extensions.sqlite)
+ DefaultProfileLocales: extensions.sqlite corrupt or missing
+ DefaultProfilePrefErrors: Unexpected character ',' before close parenthesis @ 
/usr/lib/firefox/omni.ja:greprefs.js:294
+ DefaultProfilePrefSources:
+  /usr/lib/firefox/defaults/pref/vendor-gre.js
+  /usr/lib/firefox/defaults/pref/channel-prefs.js
+ DefaultProfilePrefs: network.manage-offline-status: true 
(/usr/lib/firefox/defaults/pref/vendor-gre.js)
+ DefaultProfileThemes: extensions.sqlite corrupt or missing
+ DistroRelease: Ubuntu 23.04
+ ForcedLayersAccel: False
+ IfupdownConfig:
+  # interfaces(5) file used by ifup(8) and ifdown(8)
+  auto lo
+  iface lo inet loopback
+ Package: firefox 113.0+build1-0ubuntu0.23.04.1~mt1 [origin: 
LP-PPA-mozillateam]
+ PackageArchitecture: amd64
+ ProcCmdline: BOOT_IMAGE=/vmlinuz-6.2.14-surface root=/dev/nvme0n1p8 ro text 
i915.enable_guc=3 usbcore.autosuspend=-1 reboot=pci
+ ProcVersionSignature: Error: [Errno 2] No such file or directory: 
'/proc/version_signature'
+ Profile0Extensions: extensions.sqlite corrupt or missing
+ Profile0IncompatibleExtensions: Unavailable (corrupt or non-existant 
compatibility.ini or extensions.sqlite)
+ Profile0Locales: extensions.sqlite corrupt or missing
+ Profile0PrefErrors: Unexpected character ',' before close parenthesis @ 
/usr/lib/firefox/omni.ja:greprefs.js:294
+ Profile0PrefSources:
+  /usr/lib/firefox/defaults/pref/vendor-gre.js
+  /usr/lib/firefox/defaults/pref/channel-prefs.js
+  prefs.js
+ Profile0Themes: extensions.sqlite corrupt or missing
+ Profiles:
+  Profile1 (Default) - LastVersion=None/None (Out of date)
+  Profile0 - LastVersion=113.0/20230501151611 (In use)
+ PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No 
PulseAudio daemon running, or not running as session daemon.
+ RunningIncompatibleAddons: False
+ Tags: lunar third-party-packages wayland-session release-channel
+ Uname: Linux 6.2.14-surface x86_64
+ UnreportableReason: This does not seem to be an official Ubuntu package. 
Please retry after updating the indexes of available packages, if that does not 
work then remove related third party packages and try again.
+ UpgradeStatus: Upgraded to lunar on 2023-05-02 (1 days ago)
+ UserGroups: dialout docker kvm lpadmin lxd plugdev sudo systemd-journal video 
wireshark
+ _MarkForUpload: True
+ dmi.bios.date: 07/08/2022
+ dmi.bios.vendor: Microsoft Corporation
+ dmi.bios.version: 15.11.140
+ dmi.board.name: Surface Pro 7
+ dmi.board.vendor: Microsoft Corporation
+ dmi.chassis.type: 9
+ dmi.chassis.vendor: Microsoft Corporation
+ dmi.modalias: 
dmi:bvnMicrosoftCorporation:bvr15.11.140:bd07/08/2022:svnMicrosoftCorporation:pnSurfacePro7:pvr124I00046T000M0100000D0B07F0C05P48S1E0Y0K0U06R1:rvnMicrosoftCorporation:rnSurfacePro7:rvr:cvnMicrosoftCorporation:ct9:cvr:skuSurface_Pro_7_1866:
+ dmi.product.family: Surface
+ dmi.product.name: Surface Pro 7
+ dmi.product.sku: Surface_Pro_7_1866
+ dmi.product.version: 
124I:00046T:000M:0100000D:0B:07F:0C:05P:48S:1E:0Y:0K:0U:06R:1
+ dmi.sys.vendor: Microsoft Corporation

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to firefox in Ubuntu.
https://bugs.launchpad.net/bugs/2018439

Title:
  Apparmor crashes GPU acceleration

Status in firefox package in Ubuntu:
  New

Bug description:
  Apparmor crashes GPU acceleration

  Firefox GPU acceleration started crashing after updating from Ubuntu
  22.10 to 23.04.

  $ lsb_release -rd
  No LSB modules are available.
  Description:    Ubuntu 23.04
  Release:        23.04

  $ apt-cache policy firefox
  firefox:
    Installed: 113.0+build1-0ubuntu0.23.04.1~mt1
    Candidate: 113.0+build1-0ubuntu0.23.04.1~mt1
    Version table:
       1:1snap1-0ubuntu3 500
          500 https://gpl.savoirfairelinux.net/pub/mirrors/ubuntu lunar/main 
amd64 Packages
   *** 113.0+build1-0ubuntu0.23.04.1~mt1 999
          500 https://ppa.launchpadcontent.net/mozillateam/ppa/ubuntu 
lunar/main amd64 Packages
          100 /var/lib/dpkg/status

  $ apt-cache policy libglx-mesa0 
  libglx-mesa0:
    Installed: 23.0.3~kisak1~k
    Candidate: 23.0.3~kisak1~k
    Version table:
   *** 23.0.3~kisak1~k 500
          500 https://ppa.launchpadcontent.net/kisak/kisak-mesa/ubuntu 
kinetic/main amd64 Packages
          100 /var/lib/dpkg/status
       23.0.2-1ubuntu1 500
          500 https://gpl.savoirfairelinux.net/pub/mirrors/ubuntu lunar/main 
amd64 Packages

  $ apt-cache policy apparmor
  apparmor:
    Installed: 3.0.8-1ubuntu2
    Candidate: 3.0.8-1ubuntu2
    Version table:
   *** 3.0.8-1ubuntu2 500
          500 https://gpl.savoirfairelinux.net/pub/mirrors/ubuntu lunar/main 
amd64 Packages
          100 /var/lib/dpkg/status

  # Expected behavior

  Firefox should not crash in WebGL aquarium and continue to work
  properly like on 22.10. It should successfully use my GPU to make
  scrolling smooths and save battery when watching videos.

  # Actual behavior

  1. Startup takes a second or two longer than usual
  2. Typing in the address bar is slow
  3. Scrolling takes 400% CPU usage
  4. Scrolling stutters
  5. VAAPI on https://www.w3schools.com/html/html5_video.asp is no longer used 
as shown in intel_gpu_top
  6. Fans start spinning and battery goes down fast
  7. glxtest failures had to be manually deleted in about:config
  8. Only a few fish in WebGL aquarium 
(https://webglsamples.org/aquarium/aquarium.html) load before Firefox 
force-closes with the message: "Mozilla Crash Reporter Firefox had a problem 
and crashed. Unfortunately, the crash reporter is unable to submit a crash 
report. Details: The application did not leave a crash dump file. Close"
  9. The following lines are relevant in dmesg after clearing it:

  [22157.695580] kauditd_printk_skb: 6 callbacks suppressed
  [22157.695582] audit: type=1400 audit(1683153440.994:2583): apparmor="DENIED" 
operation="capable" class="cap" profile="firefox" pid=15898 comm="firefox" 
capability=21  capname="sys_admin"
  [22157.739641] audit: type=1400 audit(1683153441.038:2584): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/sys/devices/pci0000:00/0000:00:02.0/revision" pid=15901 comm="firefox" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
  [22157.739647] audit: type=1400 audit(1683153441.038:2585): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/sys/devices/pci0000:00/0000:00:02.0/config" pid=15901 comm="firefox" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
  [22157.739719] audit: type=1400 audit(1683153441.038:2586): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/sys/devices/pci0000:00/0000:00:02.0/revision" pid=15901 comm="firefox" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
  [22157.739729] audit: type=1400 audit(1683153441.038:2587): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/sys/devices/pci0000:00/0000:00:02.0/config" pid=15901 comm="firefox" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
  [22157.769407] audit: type=1400 audit(1683153441.070:2588): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/proc/15898/oom_score_adj" pid=15898 comm="firefox" requested_mask="w" 
denied_mask="w" fsuid=1000 ouid=1000
  [22157.773042] audit: type=1400 audit(1683153441.074:2589): apparmor="DENIED" 
operation="file_mmap" class="file" profile="firefox//lsb_release" 
name="/usr/bin/dash" pid=15934 comm="lsb_release" requested_mask="r" 
denied_mask="r" fsuid=1000 ouid=0
  [22157.974718] audit: type=1400 audit(1683153441.274:2590): apparmor="DENIED" 
operation="open" class="file" profile="firefox" name="/proc/15898/cgroup" 
pid=15898 comm="firefox" requested_mask="r" denied_mask="r" fsuid=1000 ouid=1000
  [22157.996255] audit: type=1400 audit(1683153441.298:2591): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/sys/devices/pci0000:00/0000:00:02.0/revision" pid=15898 comm="Renderer" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
  [22157.996260] audit: type=1400 audit(1683153441.298:2592): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/sys/devices/pci0000:00/0000:00:02.0/config" pid=15898 comm="Renderer" 
requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
  [22163.478994] kauditd_printk_skb: 84 callbacks suppressed
  [22163.478997] audit: type=1400 audit(1683153446.778:2677): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/25/11491cb402d47ca04c0196ff7c4dc9684f1f97.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
  [22163.597737] audit: type=1400 audit(1683153446.898:2678): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/proc/16052/oom_score_adj" pid=15898 comm="firefox" requested_mask="w" 
denied_mask="w" fsuid=1000 ouid=1000
  [22163.602664] audit: type=1400 audit(1683153446.902:2679): apparmor="DENIED" 
operation="open" class="file" profile="firefox" 
name="/proc/16019/oom_score_adj" pid=15898 comm="firefox" requested_mask="w" 
denied_mask="w" fsuid=1000 ouid=1000
  [22163.681703] audit: type=1400 audit(1683153446.982:2680): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/3c/8574ff630bb2056a665c574f9820f176d7913a.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
  [22163.716158] audit: type=1400 audit(1683153447.018:2681): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/24/20b4d21bcd624d71d3ce4f474b5be6b28bbc8e.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
  [22163.772912] audit: type=1400 audit(1683153447.074:2682): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/63/f955ef3504ae1f103040d7c24f2ccb6c2dc324.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
  [22163.821410] audit: type=1400 audit(1683153447.122:2683): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/cc/26d55b3b5c18f145b99c95928da4078d01e433.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
  [22163.934506] audit: type=1400 audit(1683153447.234:2684): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/71/7a666e633ee8a8408541d19257f35460da1921.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
  [22164.011166] audit: type=1400 audit(1683153447.310:2685): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/6f/a3c5a35037023fcb4630ee71df1e17107a0132.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000
  [22164.049428] audit: type=1400 audit(1683153447.350:2686): apparmor="DENIED" 
operation="file_lock" class="file" profile="firefox" 
name="/home/home/.cache/mesa_shader_cache/cf/d8f7837a74690386158ffe0b8a009a74112c3e.tmp"
 pid=15898 comm="firefox:disk$0" requested_mask="k" denied_mask="k" fsuid=1000 
ouid=1000

  `apport-bug firefox` is not working: "Apport The problem cannot be reported: 
This problem report is damaged and cannot be processed. PermissionError(13, 
'Permission denied')"
  `LIBGL_ALWAYS_INDIRECT=1 firefox` stops the crashing but WebGL aquarium runs 
at 12 FPS instead of 60 FPS.

  # Workaround

  `sudo aa-teardown` fixes the problem until the next reboot. It's regrettable 
that this weakens security, but at least I won't get nauseous from stuttering 
scrolling.
  --- 
  ProblemType: Bug
  AddonCompatCheckDisabled: False
  ApportVersion: 2.26.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  home       1679 F.... wireplumber
   /dev/snd/seq:        home       1678 F.... pipewire
  BuildID: 20230501151611
  CasperMD5CheckResult: unknown
  Channel: release
  CurrentDesktop: KDE
  DefaultProfileExtensions: extensions.sqlite corrupt or missing
  DefaultProfileIncompatibleExtensions: Unavailable (corrupt or non-existant 
compatibility.ini or extensions.sqlite)
  DefaultProfileLocales: extensions.sqlite corrupt or missing
  DefaultProfilePrefErrors: Unexpected character ',' before close parenthesis @ 
/usr/lib/firefox/omni.ja:greprefs.js:294
  DefaultProfilePrefSources:
   /usr/lib/firefox/defaults/pref/vendor-gre.js
   /usr/lib/firefox/defaults/pref/channel-prefs.js
  DefaultProfilePrefs: network.manage-offline-status: true 
(/usr/lib/firefox/defaults/pref/vendor-gre.js)
  DefaultProfileThemes: extensions.sqlite corrupt or missing
  DistroRelease: Ubuntu 23.04
  ForcedLayersAccel: False
  IfupdownConfig:
   # interfaces(5) file used by ifup(8) and ifdown(8)
   auto lo
   iface lo inet loopback
  Package: firefox 113.0+build1-0ubuntu0.23.04.1~mt1 [origin: 
LP-PPA-mozillateam]
  PackageArchitecture: amd64
  ProcCmdline: BOOT_IMAGE=/vmlinuz-6.2.14-surface root=/dev/nvme0n1p8 ro text 
i915.enable_guc=3 usbcore.autosuspend=-1 reboot=pci
  ProcVersionSignature: Error: [Errno 2] No such file or directory: 
'/proc/version_signature'
  Profile0Extensions: extensions.sqlite corrupt or missing
  Profile0IncompatibleExtensions: Unavailable (corrupt or non-existant 
compatibility.ini or extensions.sqlite)
  Profile0Locales: extensions.sqlite corrupt or missing
  Profile0PrefErrors: Unexpected character ',' before close parenthesis @ 
/usr/lib/firefox/omni.ja:greprefs.js:294
  Profile0PrefSources:
   /usr/lib/firefox/defaults/pref/vendor-gre.js
   /usr/lib/firefox/defaults/pref/channel-prefs.js
   prefs.js
  Profile0Themes: extensions.sqlite corrupt or missing
  Profiles:
   Profile1 (Default) - LastVersion=None/None (Out of date)
   Profile0 - LastVersion=113.0/20230501151611 (In use)
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No 
PulseAudio daemon running, or not running as session daemon.
  RunningIncompatibleAddons: False
  Tags: lunar third-party-packages wayland-session release-channel
  Uname: Linux 6.2.14-surface x86_64
  UnreportableReason: This does not seem to be an official Ubuntu package. 
Please retry after updating the indexes of available packages, if that does not 
work then remove related third party packages and try again.
  UpgradeStatus: Upgraded to lunar on 2023-05-02 (1 days ago)
  UserGroups: dialout docker kvm lpadmin lxd plugdev sudo systemd-journal video 
wireshark
  _MarkForUpload: True
  dmi.bios.date: 07/08/2022
  dmi.bios.vendor: Microsoft Corporation
  dmi.bios.version: 15.11.140
  dmi.board.name: Surface Pro 7
  dmi.board.vendor: Microsoft Corporation
  dmi.chassis.type: 9
  dmi.chassis.vendor: Microsoft Corporation
  dmi.modalias: 
dmi:bvnMicrosoftCorporation:bvr15.11.140:bd07/08/2022:svnMicrosoftCorporation:pnSurfacePro7:pvr124I00046T000M0100000D0B07F0C05P48S1E0Y0K0U06R1:rvnMicrosoftCorporation:rnSurfacePro7:rvr:cvnMicrosoftCorporation:ct9:cvr:skuSurface_Pro_7_1866:
  dmi.product.family: Surface
  dmi.product.name: Surface Pro 7
  dmi.product.sku: Surface_Pro_7_1866
  dmi.product.version: 
124I:00046T:000M:0100000D:0B:07F:0C:05P:48S:1E:0Y:0K:0U:06R:1
  dmi.sys.vendor: Microsoft Corporation

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