Comment 15 for bug 1714542

My apologies for not being able to communicate earlier since I was out of town. I am back now can install via the ppA if you will. Thanks

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Regards,
Pravin B Ravi
(Sent from my phone)

On Oct 9, 2017, at 06:45, Andrea Azzarone <email address hidden> wrote:

For the moment we can distro patch my workaround to avoid crashing. I'm
already working to understand the true problem and propose the proper
fix. For the moment it's better to avoid the crash.

** Patch added: "ubuntu_avoid_crash_if_nan.patch"
  https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1714542/+attachment/4965738/+files/ubuntu_avoid_crash_if_nan.patch

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You received this bug notification because you are subscribed to a
duplicate bug report (1720286).
https://bugs.launchpad.net/bugs/1714542

Title:
 gnome-shell crashed with SIGSEGV in
 st_theme_node_reduce_border_radius() from
 st_theme_node_paint_borders() from st_theme_node_paint()

Status in GNOME Shell:
 Confirmed
Status in gnome-shell package in Ubuntu:
 In Progress

Bug description:
 https://errors.ubuntu.com/problem/23d376488259ea5f9fa6fb9843956cb6464f56e8

 ---

 As of an upgrade to 3.25.91 (last session that did not exhibit this
 behavior was a 3.24.x session), I've experienced several crashes of
 the shell in the overview. journalctl shows the following output at
 the time of the crash:

 Sep 01 08:14:41 spiny org.gnome.Shell.desktop[8792]: Window manager warning: Overwriting existing binding of keysym ffb5 with keysym ffb5 (keycode 54).
 Sep 01 08:14:41 spiny gnome-shell[8506]: meta_renderer_native_release_onscreen: assertion 'onscreen_native->gbm.next_fb_id == 0' failed
 Sep 01 08:14:41 spiny gnome-shell[8506]: _cogl_onscreen_free: assertion 'onscreen->winsys == ((void *)0)' failed
 Sep 01 08:14:41 spiny kernel: gnome-shell[8506]: segfault at 1a0 ip 00007fc6008dd296 sp 00007fff2df360f0 error 4 in libmutter-1.so.0.0.0[7fc6007f9000+13e000]
 Sep 01 08:14:41 spiny org.gnome.Shell.desktop[8506]: (EE)
 Sep 01 08:14:41 spiny org.gnome.Shell.desktop[8506]: Fatal server error:
 Sep 01 08:14:41 spiny org.gnome.Shell.desktop[8506]: (EE) failed to read Wayland events: Connection reset by peer
 Sep 01 08:14:41 spiny org.gnome.Shell.desktop[8506]: (EE)
 Sep 01 08:14:41 spiny gnome-session[8488]: gnome-session-binary[8488]: WARNING: Application 'org.gnome.Shell.desktop' killed by signal 11
 Sep 01 08:14:41 spiny gnome-session-binary[8488]: Unrecoverable failure in required component org.gnome.Shell.desktop
 Sep 01 08:14:41 spiny gnome-session-binary[8488]: WARNING: Application 'org.gnome.Shell.desktop' killed by signal 11
 Sep 01 08:14:41 spiny polkitd(authority=local)[1424]: Unregistered Authentication Agent for unix-session:c3 (system bus name :1.868, object path /org/freedesktop/PolicyKit1/AuthenticationAgent, locale en_US.UTF-8) (disco
 Sep 01 08:14:41 spiny gsd-media-keys[8610]: gsd-media-keys: Fatal IO error 11 (Resource temporarily unavailable) on X server :1024.
 Sep 01 08:14:41 spiny gsd-keyboard[8607]: gsd-keyboard: Fatal IO error 11 (Resource temporarily unavailable) on X server :1024.
 Sep 01 08:14:41 spiny gsd-clipboard[8596]: gsd-clipboard: Fatal IO error 11 (Resource temporarily unavailable) on X server :1024.
 Sep 01 08:14:41 spiny gsd-power[8613]: gsd-power: Fatal IO error 11 (Resource temporarily unavailable) on X server :1024.
 Sep 01 08:14:41 spiny gsd-color[8599]: gsd-color: Fatal IO error 11 (Resource temporarily unavailable) on X server :1024.
 Sep 01 08:14:41 spiny org.a11y.atspi.Registry[8529]: XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":1024"
 Sep 01 08:14:41 spiny org.a11y.atspi.Registry[8529]: after 21 requests (21 known processed) with 0 events remaining.
 Sep 01 08:14:41 spiny gdm-launch-environment][8400]: pam_unix(gdm-launch-environment:session): session closed for user gdm
 Sep 01 08:14:41 spiny systemd-logind[1376]: Removed session c3.
 Sep 01 08:14:41 spiny systemd[1]: Stopping User Manager for UID 121...
 Sep 01 08:14:41 spiny systemd[8432]: Stopping Accessibility services bus...
 Sep 01 08:14:41 spiny systemd[8432]: Stopping Sound Service...
 Sep 01 08:14:41 spiny systemd[8432]: Stopped target Default.
 Sep 01 08:14:41 spiny systemd[8432]: Stopping D-Bus User Message Bus...
 Sep 01 08:14:41 spiny systemd[8432]: Stopping sandboxed app permission store...
 Sep 01 08:14:41 spiny systemd[8432]: Stopped sandboxed app permission store.
 Sep 01 08:14:41 spiny systemd[8432]: Stopped D-Bus User Message Bus.
 Sep 01 08:14:41 spiny systemd[8432]: Stopped Accessibility services bus.
 Sep 01 08:14:41 spiny systemd[8432]: Stopped Sound Service.
 Sep 01 08:14:41 spiny systemd[8432]: Stopped target Basic System.
 Sep 01 08:14:41 spiny systemd[8432]: Stopped target Paths.
 Sep 01 08:14:41 spiny systemd[8432]: Stopped target Timers.
 Sep 01 08:14:41 spiny systemd[8432]: Stopped target Sockets.
 Sep 01 08:14:41 spiny systemd[8432]: Closed D-Bus User Message Bus Socket.
 Sep 01 08:14:41 spiny systemd[8432]: Closed Sound System.
 Sep 01 08:14:41 spiny systemd[8432]: Reached target Shutdown.
 Sep 01 08:14:41 spiny systemd[8432]: Starting Exit the Session...
 Sep 01 08:14:41 spiny systemd[8432]: Received SIGRTMIN+24 from PID 8854 (kill).
 Sep 01 08:14:41 spiny systemd[1]: Stopped User Manager for UID 121.
 Sep 01 08:14:41 spiny systemd[1]: Removed slice User Slice of gdm.

 ProblemType: Crash
 DistroRelease: Ubuntu 17.10
 Package: gnome-shell 3.25.91-0ubuntu1
 ProcVersionSignature: Ubuntu 4.12.0-12.13-generic 4.12.8
 Uname: Linux 4.12.0-12-generic x86_64
 ApportVersion: 2.20.7-0ubuntu1
 Architecture: amd64
 CurrentDesktop: GNOME
 Date: Fri Sep 1 08:13:58 2017
 DisplayManager: gdm3
 EcryptfsInUse: Yes
 ExecutablePath: /usr/bin/gnome-shell
 InstallationDate: Installed on 2015-08-21 (742 days ago)
 InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Alpha amd64 (20150819)
 ProcCmdline: /usr/bin/gnome-shell
 ProcEnviron:
  PATH=(custom, no user)
  XDG_RUNTIME_DIR=<set>
  LANG=en_US.UTF-8
  SHELL=/bin/bash
 SegvAnalysis:
  Segfault happened at: 0x7f36d97a3a80: mov 0x80(%rdi),%eax
  PC (0x7f36d97a3a80) ok
  source "0x80(%rdi)" (0x00000080) not located in a known VMA region (needed readable region)!
  destination "%eax" ok
 SegvReason: reading NULL VMA
 Signal: 11
 SourcePackage: gnome-shell
 StacktraceTop:
  () at /usr/lib/gnome-shell/libst-1.0.so
  () at /usr/lib/gnome-shell/libst-1.0.so
  st_theme_node_paint () at /usr/lib/gnome-shell/libst-1.0.so
  st_widget_paint_background () at /usr/lib/gnome-shell/libst-1.0.so
  () at /usr/lib/gnome-shell/libst-1.0.so
 Title: gnome-shell crashed with SIGSEGV
 UpgradeStatus: No upgrade log present (probably fresh install)
 UserGroups: adm cdrom dip docker input lpadmin lxd plugdev sambashare sudo systemd-journal wireshark

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