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[Bug 1890394] [NEW] Ubuntu 20.10 Groovy Proposed: Lightdm-gtk-greeter coredump during boot

 

Public bug reported:

Upstream:https://github.com/Xubuntu/lightdm-gtk-greeter/issues/77

This is one of the many core dumps on `journalctl` for a given boot
(dumps multiple times before starting) :

**See it on upstream bug report**

System Details:

System:
Kernel: 5.8.0-12-generic x86_64 bits: 64 compiler: N/A Desktop:
Xfce 4.14.2
Distro: Ubuntu 20.10 (Groovy Gorilla) (*Proposed)

lightdm                       1.30.0-0ubuntu3.1: amd64
lightdm-gtk-greeter           2.0.6-0ubuntu1:amd64
lightdm-gtk-greeter-settings  1.2.2-3
linux-firmware                1.189
------------------------------------------------------
systemd,systemd-coredump,
systemd-sysv                                245.7-1ubuntu1
------------------------------------------------------

OpenGL ES 3.2
Mesa 20.2.0-devel

[lightdm.log](https://termbin.com/eipz)
[coredumpctl](https://termbin.com/chr2)
[gdb_backtrace](https://termbin.com/645a)

Current Behaviour:

On boot screen blinks for 2-3 times (probably the segmentation fault)
but eventually starts after 1-2 minutes.

Expected Behaviour:

Greeter would appear properly after boot.

Note: Some other systemd services are also failing on proposed, not sure
if related.

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: lightdm-gtk-greeter 2.0.6-0ubuntu1
ProcVersionSignature: Ubuntu 5.8.0-12.13-generic 5.8.0-rc7
Uname: Linux 5.8.0-12-generic x86_64
ApportVersion: 2.20.11-0ubuntu43
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: XFCE
Date: Wed Aug  5 12:58:44 2020
InstallationDate: Installed on 2020-04-17 (109 days ago)
InstallationMedia: Xubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200416)
SourcePackage: lightdm-gtk-greeter
UpgradeStatus: Upgraded to groovy on 2020-08-04 (0 days ago)

modified.conffile..etc.lightdm.lightdm-gtk-greeter.conf:
[greeter]
 indicators = ~session;~language;~a11y;~clock;~power
 default-user-image = /home/korte/Pictures/profile/profile.jpeg
mtime.conffile..etc.lightdm.lightdm-gtk-greeter.conf: 2020-06-27T09:26:56.022638

** Affects: lightdm-gtk-greeter (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug groovy third-party-packages

** Description changed:

  Upstream:https://github.com/Xubuntu/lightdm-gtk-greeter/issues/77
  
- This is one of the many core dumps on `journalctl` for a given boot (dumps multiple times before starting)
- ```
- Aug 05 06:30:59 kortewegdevries systemd-coredump[1776]: Process 1719 (lightdm-gtk-gre) of user 114 dumped core.
-                                                         
-                                                         Stack trace of thread 1747:
-                                                         #0  0x00007f8d64ea7c4b __GI_raise (libc.so.6 + 0x40c4b)
-                                                         #1  0x00007f8d64e8c855 __GI_abort (libc.so.6 + 0x25855)
-                                                         #2  0x00007f8d651dfb2f n/a (libglib-2.0.so.0 + 0x1db2f)
-                                                         #3  0x00007f8d6521b399 g_logv (libglib-2.0.so.0 + 0x59399)
-                                                         #4  0x00007f8d6521b563 g_log (libglib-2.0.so.0 + 0x59563)
-                                                         #5  0x00007f8d65219d89 g_realloc (libglib-2.0.so.0 + 0x57d89)
-                                                         #6  0x00007f8d65236e24 n/a (libglib-2.0.so.0 + 0x74e24)
-                                                         #7  0x00007f8d65236e87 g_string_sized_new (libglib-2.0.so.0 + 0x74e87)
-                                                         #8  0x00007f8d6521b8bb g_log_writer_format_fields (libglib-2.0.so.0 + 0x598bb)
-                                                         #9  0x00007f8d6521c896 g_log_writer_standard_streams (libglib-2.0.so.0 + 0x5a896)
-                                                         #10 0x00007f8d6521c996 g_log_writer_default (libglib-2.0.so.0 + 0x5a996)
-                                                         #11 0x00007f8d6521acf7 g_log_structured_array (libglib-2.0.so.0 + 0x58cf7)
-                                                         #12 0x00007f8d6521b139 g_log_default_handler (libglib-2.0.so.0 + 0x59139)
-                                                         #13 0x00007f8d6521b37c g_logv (libglib-2.0.so.0 + 0x5937c)
-                                                         #14 0x00007f8d6521b563 g_log (libglib-2.0.so.0 + 0x59563)
-                                                         #15 0x00007f8d65219ce2 g_malloc (libglib-2.0.so.0 + 0x57ce2)
-                                                         #16 0x00007f8d6525c5c6 g_variant_type_new_dict_entry (libglib-2.0.so.0 + 0x9a5c6)
-                                                         #17 0x00007f8d6524dc3a g_variant_new_dict_entry (libglib-2.0.so.0 + 0x8bc3a)
-                                                         #18 0x00007f8d6545e7d6 n/a (libgio-2.0.so.0 + 0x1137d6)
-                                                         #19 0x00007f8d6545efab n/a (libgio-2.0.so.0 + 0x113fab)
-                                                         #20 0x00007f8d6545eed7 n/a (libgio-2.0.so.0 + 0x113ed7)
-                                                         #21 0x00007f8d6545efab n/a (libgio-2.0.so.0 + 0x113fab)
-                                                         #22 0x00007f8d6545f1ec n/a (libgio-2.0.so.0 + 0x1141ec)
-                                                         #23 0x00007f8d6545e7bf n/a (libgio-2.0.so.0 + 0x1137bf)
-                                                         #24 0x00007f8d6545efab n/a (libgio-2.0.so.0 + 0x113fab)
-                                                         #25 0x00007f8d6545eed7 n/a (libgio-2.0.so.0 + 0x113ed7)
-                                                         #26 0x00007f8d65461181 g_dbus_message_new_from_blob (libgio-2.0.so.0 + 0x116181)
-                                                         #27 0x00007f8d6546bfad n/a (libgio-2.0.so.0 + 0x120fad)
-                                                         #28 0x00007f8d653fff29 n/a (libgio-2.0.so.0 + 0xb4f29)
-                                                         #29 0x00007f8d653fff6d n/a (libgio-2.0.so.0 + 0xb4f6d)
-                                                         #30 0x00007f8d65213e6e g_main_context_dispatch (libglib-2.0.so.0 + 0x51e6e)
-                                                         #31 0x00007f8d65214220 n/a (libglib-2.0.so.0 + 0x52220)
-                                                         #32 0x00007f8d65214513 g_main_loop_run (libglib-2.0.so.0 + 0x52513)
-                                                         #33 0x00007f8d65469e9a n/a (libgio-2.0.so.0 + 0x11ee9a)
-                                                         #34 0x00007f8d6523d911 n/a (libglib-2.0.so.0 + 0x7b911)
-                                                         #35 0x00007f8d6505a5c9 start_thread (libpthread.so.0 + 0x95c9)
-                                                         #36 0x00007f8d64f80693 __clone (libc.so.6 + 0x119693)
-                                                         
-                                                         Stack trace of thread 1738:
-                                                         #0  0x00007f8d65061456 futex_wait_cancelable (libpthread.so.0 + 0x10456)
-                                                         #1  0x00007f8d5ae1befb n/a (radeonsi_dri.so + 0x4c5efb)
-                                                         #2  0x00007f8d5ae17efb n/a (radeonsi_dri.so + 0x4c1efb)
-                                                         #3  0x00007f8d6505a5c9 start_thread (libpthread.so.0 + 0x95c9)
-                                                         #4  0x00007f8d64f80693 __clone (libc.so.6 + 0x119693)
-                                                         
-                                                         Stack trace of thread 1737:
-                                                         #0  0x00007f8d65061456 futex_wait_cancelable (libpthread.so.0 + 0x10456)
-                                                         #1  0x00007f8d5ae1befb n/a (radeonsi_dri.so + 0x4c5efb)
-                                                         #2  0x00007f8d5ae17efb n/a (radeonsi_dri.so + 0x4c1efb)
-                                                         #3  0x00007f8d6505a5c9 start_thread (libpthread.so.0 + 0x95c9)
-                                                         #4  0x00007f8d64f80693 __clone (libc.so.6 + 0x119693)
-                                                         
-                                                         Stack trace of thread 1733:
-                                                         #0  0x00007f8d65061456 futex_wait_cancelable (libpthread.so.0 + 0x10456)
-                                                         #1  0x00007f8d5ae1befb n/a (radeonsi_dri.so + 0x4c5efb)
-                                                         #2  0x00007f8d5ae17efb n/a (radeonsi_dri.so + 0x4c1efb)
-                                                         #3  0x00007f8d6505a5c9 start_thread (libpthread.so.0 + 0x95c9)
-                                                         #4  0x00007f8d64f80693 __clone (libc.so.6 + 0x119693)
-                                                         
-                                                         Stack trace of thread 1735:
-                                                         #0  0x00007f8d65061456 futex_wait_cancelable (libpthread.so.0 + 0x10456)
-                                                         #1  0x00007f8d5ae1befb n/a (radeonsi_dri.so + 0x4c5efb)
-                                                         #2  0x00007f8d5ae17efb n/a (radeonsi_dri.so + 0x4c1efb)
-                                                         #3  0x00007f8d6505a5c9 start_thread (libpthread.so.0 + 0x95c9)
-                                                         #4  0x00007f8d64f80693 __clone (libc.so.6 + 0x119693)
-                                                         
-                                                         Stack trace of thread 1740:
-                                                         #0  0x00007f8d65061456 futex_wait_cancelable (libpthread.so.0 + 0x10456)
-                                                         #1  0x00007f8d5ae1befb n/a (radeonsi_dri.so + 0x4c5efb)
-                                                         #2  0x00007f8d5ae17efb n/a (radeonsi_dri.so + 0x4c1efb)
-                                                         #3  0x00007f8d6505a5c9 start_thread (libpthread.so.0 + 0x95c9)
-                                                         #4  0x00007f8d64f80693 __clone (libc.so.6 + 0x119693)
-                                                         
-                                                         Stack trace of thread 1739:
-                                                         #0  0x00007f8d65061456 futex_wait_cancelable (libpthread.so.0 + 0x10456)
-                                                         #1  0x00007f8d5ae1befb n/a (radeonsi_dri.so + 0x4c5efb)
-                                                         #2  0x00007f8d5ae17efb n/a (radeonsi_dri.so + 0x4c1efb)
-                                                         #3  0x00007f8d6505a5c9 start_thread (libpthread.so.0 + 0x95c9)
-                                                         #4  0x00007f8d64f80693 __clone (libc.so.6 + 0x119693)
-                                                         
-                                                         Stack trace of thread 1719:
-                                                         #0  0x00007f8d64f74d6f __GI___poll (libc.so.6 + 0x10dd6f)
-                                                         #1  0x00007f8d6521418e n/a (libglib-2.0.so.0 + 0x5218e)
-                                                         #2  0x00007f8d65214513 g_main_loop_run (libglib-2.0.so.0 + 0x52513)
-                                                         #3  0x00007f8d6545b4e5 g_dbus_connection_send_message_with_reply_sync (libgio-2.0.so.0 + 0x1104e5)
-                                                         #4  0x00007f8d6545b8df n/a (libgio-2.0.so.0 + 0x1108df)
-                                                         #5  0x00007f8d6545d8c7 g_dbus_connection_call_sync (libgio-2.0.so.0 + 0x1128c7)
-                                                         #6  0x00007f8d660949a7 n/a (liblightdm-gobject-1.so.0 + 0x129a7)
-                                                         #7  0x00007f8d66095267 n/a (liblightdm-gobject-1.so.0 + 0x13267)
-                                                         #8  0x00007f8d66096be7 n/a (liblightdm-gobject-1.so.0 + 0x14be7)
-                                                         #9  0x00007f8d66096e77 n/a (liblightdm-gobject-1.so.0 + 0x14e77)
-                                                         #10 0x00007f8d660916e0 n/a (liblightdm-gobject-1.so.0 + 0xf6e0)
-                                                         #11 0x00007f8d660919d7 lightdm_user_list_get_users (liblightdm-gobject-1.so.0 + 0xf9d7)
-                                                         #12 0x000055f5574fa81e main (lightdm-gtk-greeter + 0xd81e)
-                                                         #13 0x00007f8d64e8ea82 __libc_start_main (libc.so.6 + 0x27a82)
-                                                         #14 0x000055f5574fb5fa _start (lightdm-gtk-greeter + 0xe5fa)
-                                                         
-                                                         Stack trace of thread 1731:
-                                                         #0  0x00007f8d65061456 futex_wait_cancelable (libpthread.so.0 + 0x10456)
-                                                         #1  0x00007f8d5ae1befb n/a (radeonsi_dri.so + 0x4c5efb)
-                                                         #2  0x00007f8d5ae17efb n/a (radeonsi_dri.so + 0x4c1efb)
-                                                         #3  0x00007f8d6505a5c9 start_thread (libpthread.so.0 + 0x95c9)
-                                                         #4  0x00007f8d64f80693 __clone (libc.so.6 + 0x119693)
-                                                         
-                                                         Stack trace of thread 1736:
-                                                         #0  0x00007f8d65061456 futex_wait_cancelable (libpthread.so.0 + 0x10456)
-                                                         #1  0x00007f8d5ae1befb n/a (radeonsi_dri.so + 0x4c5efb)
-                                                         #2  0x00007f8d5ae17efb n/a (radeonsi_dri.so + 0x4c1efb)
-                                                         #3  0x00007f8d6505a5c9 start_thread (libpthread.so.0 + 0x95c9)
-                                                         #4  0x00007f8d64f80693 __clone (libc.so.6 + 0x119693)
-                                                         
-                                                         Stack trace of thread 1734:
-                                                         #0  0x00007f8d65061456 futex_wait_cancelable (libpthread.so.0 + 0x10456)
-                                                         #1  0x00007f8d5ae1befb n/a (radeonsi_dri.so + 0x4c5efb)
-                                                         #2  0x00007f8d5ae17efb n/a (radeonsi_dri.so + 0x4c1efb)
-                                                         #3  0x00007f8d6505a5c9 start_thread (libpthread.so.0 + 0x95c9)
-                                                         #4  0x00007f8d64f80693 __clone (libc.so.6 + 0x119693)
-                                                         
-                                                         Stack trace of thread 1732:
-                                                         #0  0x00007f8d65061456 futex_wait_cancelable (libpthread.so.0 + 0x10456)
-                                                         #1  0x00007f8d5ae1befb n/a (radeonsi_dri.so + 0x4c5efb)
-                                                         #2  0x00007f8d5ae17efb n/a (radeonsi_dri.so + 0x4c1efb)
-                                                         #3  0x00007f8d6505a5c9 start_thread (libpthread.so.0 + 0x95c9)
-                                                         #4  0x00007f8d64f80693 __clone (libc.so.6 + 0x119693)
-                                                         
-                                                         Stack trace of thread 1730:
-                                                         #0  0x00007f8d64f74d6f __GI___poll (libc.so.6 + 0x10dd6f)
-                                                         #1  0x00007f8d6521418e n/a (libglib-2.0.so.0 + 0x5218e)
-                                                         #2  0x00007f8d652142c3 g_main_context_iteration (libglib-2.0.so.0 + 0x522c3)
-                                                         #3  0x00007f8d65214311 n/a (libglib-2.0.so.0 + 0x52311)
-                                                         #4  0x00007f8d6523d911 n/a (libglib-2.0.so.0 + 0x7b911)
-                                                         #5  0x00007f8d6505a5c9 start_thread (libpthread.so.0 + 0x95c9)
-                                                         #6  0x00007f8d64f80693 __clone (libc.so.6 + 0x119693)
- Aug 05 06:30:59 kortewegdevries systemd[1]: systemd-coredump@0-1775-0.service: Succeeded.
- Aug 05 06:30:59 kortewegdevries kernel: [drm] PCIE GART of 256M enabled (table at 0x000000F400000000).
- Aug 05 06:30:59 kortewegdevries kernel: amdgpu: can't get the mac of 5
- Aug 05 06:30:59 kortewegdevries audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-1775-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
- Aug 05 06:30:59 kortewegdevries audit: AUDIT1334 prog-id=13 op=UNLOAD
- Aug 05 06:30:59 kortewegdevries audit: AUDIT1334 prog-id=12 op=UNLOAD
- Aug 05 06:30:59 kortewegdevries audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=lightdm comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=failed'
- Aug 05 06:30:59 kortewegdevries systemd[1]: lightdm.service: Main process exited, code=exited, status=1/FAILURE
- Aug 05 06:30:59 kortewegdevries systemd[1]: lightdm.service: Failed with result 'exit-code'.
- Aug 05 06:30:59 kortewegdevries systemd[1]: lightdm.service: Scheduled restart job, restart counter is at 1.
- Aug 05 06:30:59 kortewegdevries systemd[1]: Stopped Light Display Manager.
- ```
+ This is one of the many core dumps on `journalctl` for a given boot
+ (dumps multiple times before starting) : *See it on upstream bug report*
  
  System Details:
  
  ```
- System:    Kernel: 5.8.0-12-generic x86_64 bits: 64 compiler: N/A Desktop: Xfce 4.14.2 
-                 Distro: Ubuntu 20.10 (Groovy Gorilla) (*Proposed)
+ System:    Kernel: 5.8.0-12-generic x86_64 bits: 64 compiler: N/A Desktop: Xfce 4.14.2
+                 Distro: Ubuntu 20.10 (Groovy Gorilla) (*Proposed)
  
- lightdm                                                     1.30.0-0ubuntu3.1: amd64        
- lightdm-gtk-greeter                                         2.0.6-0ubuntu1:amd64       
- lightdm-gtk-greeter-settings                                1.2.2-3       
- linux-firmware                                              1.189 
-  ---------------------------------------------------
+ lightdm                                                     1.30.0-0ubuntu3.1: amd64
+ lightdm-gtk-greeter                                         2.0.6-0ubuntu1:amd64
+ lightdm-gtk-greeter-settings                                1.2.2-3
+ linux-firmware                                              1.189
+  ---------------------------------------------------
  systemd,systemd-coredump,
  systemd-sysv                                                245.7-1ubuntu1
- ---------------------------------------------------                           
- OpenGL ES 3.2 
+ ---------------------------------------------------
+ OpenGL ES 3.2
  Mesa 20.2.0-devel
  ```
  [lightdm.log](https://termbin.com/eipz)
  [coredumpctl](https://termbin.com/chr2)
  [gdb_backtrace](https://termbin.com/645a)
  
  Current Behaviour:
  
  On boot screen blinks for 2-3 times (probably the segmentation fault)
  but eventually starts after 1-2 minutes.
  
  Expected Behaviour:
  
  Greeter would appear properly after boot.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: lightdm-gtk-greeter 2.0.6-0ubuntu1
  ProcVersionSignature: Ubuntu 5.8.0-12.13-generic 5.8.0-rc7
  Uname: Linux 5.8.0-12-generic x86_64
  ApportVersion: 2.20.11-0ubuntu43
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: XFCE
  Date: Wed Aug  5 12:58:44 2020
  InstallationDate: Installed on 2020-04-17 (109 days ago)
  InstallationMedia: Xubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200416)
  SourcePackage: lightdm-gtk-greeter
  UpgradeStatus: Upgraded to groovy on 2020-08-04 (0 days ago)
  modified.conffile..etc.lightdm.lightdm-gtk-greeter.conf:
-  [greeter]
-  indicators = ~session;~language;~a11y;~clock;~power
-  default-user-image = /home/korte/Pictures/profile/profile.jpeg
+  [greeter]
+  indicators = ~session;~language;~a11y;~clock;~power
+  default-user-image = /home/korte/Pictures/profile/profile.jpeg
  mtime.conffile..etc.lightdm.lightdm-gtk-greeter.conf: 2020-06-27T09:26:56.022638

-- 
You received this bug notification because you are a member of LightDM
Gtk+ Greeter Development Team, which is subscribed to lightdm-gtk-
greeter in Ubuntu.
https://bugs.launchpad.net/bugs/1890394

Title:
  Ubuntu 20.10 Groovy Proposed: Lightdm-gtk-greeter coredump during boot

Status in lightdm-gtk-greeter package in Ubuntu:
  New

Bug description:
  Upstream:https://github.com/Xubuntu/lightdm-gtk-greeter/issues/77

  This is one of the many core dumps on `journalctl` for a given boot
  (dumps multiple times before starting) :

  **See it on upstream bug report**

  System Details:

  System:
  Kernel: 5.8.0-12-generic x86_64 bits: 64 compiler: N/A Desktop:
  Xfce 4.14.2
  Distro: Ubuntu 20.10 (Groovy Gorilla) (*Proposed)

  lightdm                       1.30.0-0ubuntu3.1: amd64
  lightdm-gtk-greeter           2.0.6-0ubuntu1:amd64
  lightdm-gtk-greeter-settings  1.2.2-3
  linux-firmware                1.189
  ------------------------------------------------------
  systemd,systemd-coredump,
  systemd-sysv                                245.7-1ubuntu1
  ------------------------------------------------------

  OpenGL ES 3.2
  Mesa 20.2.0-devel

  [lightdm.log](https://termbin.com/eipz)
  [coredumpctl](https://termbin.com/chr2)
  [gdb_backtrace](https://termbin.com/645a)

  Current Behaviour:

  On boot screen blinks for 2-3 times (probably the segmentation fault)
  but eventually starts after 1-2 minutes.

  Expected Behaviour:

  Greeter would appear properly after boot.

  Note: Some other systemd services are also failing on proposed, not
  sure if related.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: lightdm-gtk-greeter 2.0.6-0ubuntu1
  ProcVersionSignature: Ubuntu 5.8.0-12.13-generic 5.8.0-rc7
  Uname: Linux 5.8.0-12-generic x86_64
  ApportVersion: 2.20.11-0ubuntu43
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: XFCE
  Date: Wed Aug  5 12:58:44 2020
  InstallationDate: Installed on 2020-04-17 (109 days ago)
  InstallationMedia: Xubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200416)
  SourcePackage: lightdm-gtk-greeter
  UpgradeStatus: Upgraded to groovy on 2020-08-04 (0 days ago)

  modified.conffile..etc.lightdm.lightdm-gtk-greeter.conf:
  [greeter]
   indicators = ~session;~language;~a11y;~clock;~power
   default-user-image = /home/korte/Pictures/profile/profile.jpeg
  mtime.conffile..etc.lightdm.lightdm-gtk-greeter.conf: 2020-06-27T09:26:56.022638

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Follow ups