[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

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** Changed in: mutter
   Status: In Progress => Fix Released

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Title:
  gnome-shell crashed with SIGSEGV in
  meta_window_is_on_primary_monitor()

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[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

[Bug Watch Updater]

** Changed in: mutter
   Status: Confirmed => In Progress

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  gnome-shell crashed with SIGSEGV in
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[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

[Daniel van Vugt]

Thanks. That is bug 1726352 so please discuss it in there.

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  gnome-shell crashed with SIGSEGV in
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[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

[Rocko]

gnome-shell is definitely still crashing in Bionic whenever I turn off
the only attached monitor, so I've opened bug #1742598 with one of the
crash dumps it generated.

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  gnome-shell crashed with SIGSEGV in
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[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

[Daniel van Vugt]

Judging by all the duplicate bugs and the global error reports
(https://errors.ubuntu.com/problem/2248f9a7d43e5e9a3bba2ac8364590ed8b7361a7),
this particular bug stopped happening with the introduction of gnome-
shell version 3.26.1.

So if you continue to experience any problems, please open new bugs.

** Changed in: mutter (Ubuntu)
 Assignee: Sam Spilsbury (smspillaz) => (unassigned)

** Changed in: gnome-shell (Ubuntu)
   Status: In Progress => Fix Released

** Changed in: mutter (Ubuntu)
   Status: In Progress => Fix Released

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  gnome-shell crashed with SIGSEGV in
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[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

[Daniel van Vugt]

I'm really not sure we're linking to the right upstream bugs still, or
that we've captured all the right error reports from errors.ubuntu.com.

Possibly this is related and is in progress:
https://bugzilla.gnome.org/show_bug.cgi?id=72

As for Ubuntu crash reports, the only link we have suggests this
particular crash in meta_window_is_on_primary_monitor universally
stopped happening after artful gnome-shell version 3.26.0-0ubuntu2, and
never happened in bionic:

https://errors.ubuntu.com/problem/2248f9a7d43e5e9a3bba2ac8364590ed8b7361a7

So _if_ this is the right bug for us to be commenting on then we
probably need to find a different but similar error report. Otherwise
we're all commenting on the wrong bug right now.

** Bug watch added: GNOME Bug Tracker #72
   https://bugzilla.gnome.org/show_bug.cgi?id=72

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  gnome-shell crashed with SIGSEGV in
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[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

[Rocko]

So is there any progress on this? I can't use gnome-shell because of it,
even with Ubuntu 18.04.

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  gnome-shell crashed with SIGSEGV in
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[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

[Daniel van Vugt]

No, bug 1722353 is already fixed :)

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  gnome-shell crashed with SIGSEGV in
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[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

[Andrew Hatfield]

This bug seems to have the same symptoms as 
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1722353
i.e. the session crashes when an HDMI or DP connected monitor is turned back on.

Andrew

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[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

[Treviño]

** Changed in: gnome-shell (Ubuntu)
   Status: Confirmed => In Progress

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  gnome-shell crashed with SIGSEGV in
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[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

[Bug Watch Updater]

** Changed in: mutter
   Status: Unknown => Confirmed

** Changed in: mutter
   Importance: Unknown => Medium

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Title:
  gnome-shell crashed with SIGSEGV in
  meta_window_is_on_primary_monitor()

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[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

[Daniel van Vugt]

And see also
https://errors.ubuntu.com/problem/2248f9a7d43e5e9a3bba2ac8364590ed8b7361a7

** Also affects: mutter (Ubuntu)
   Importance: Undecided
   Status: New

** Bug watch added: GNOME Bug Tracker #788834
   https://bugzilla.gnome.org/show_bug.cgi?id=788834

** Also affects: mutter via
   https://bugzilla.gnome.org/show_bug.cgi?id=788834
   Importance: Unknown
   Status: Unknown

** Changed in: gnome-shell (Ubuntu)
 Assignee: uklas (uklasius) => (unassigned)

** Changed in: mutter (Ubuntu)
 Assignee: (unassigned) => Sam Spilsbury (smspillaz)

** Changed in: mutter (Ubuntu)
   Status: New => In Progress

** Changed in: mutter (Ubuntu)
   Importance: Undecided => High

** Description changed:

+ https://errors.ubuntu.com/problem/2248f9a7d43e5e9a3bba2ac8364590ed8b7361a7
+ 
+ ---
+ 
  This crash appears after login in, when gnome-shell restarts it seems to
  be stable.
  
  ProblemType: Crash
  DistroRelease: Ubuntu 17.10
  Package: gnome-shell 3.25.91-0ubuntu2
  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: ubuntu:GNOME
  Date: Mon Sep  4 09:18:43 2017
  DisplayManager: gdm3
  EcryptfsInUse: Yes
  ExecutablePath: /usr/bin/gnome-shell
  InstallationDate: Installed on 2017-04-03 (153 days ago)
  InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
  ProcCmdline: /usr/bin/gnome-shell
  SegvAnalysis:
-  Segfault happened at: 0x7ff4e23f8b24 :  
mov0x2c(%rax),%eax
-  PC (0x7ff4e23f8b24) ok
-  source "0x2c(%rax)" (0x002c) not located in a known VMA region (needed 
readable region)!
-  destination "%eax" ok
+  Segfault happened at: 0x7ff4e23f8b24 :  
mov0x2c(%rax),%eax
+  PC (0x7ff4e23f8b24) ok
+  source "0x2c(%rax)" (0x002c) not located in a known VMA region (needed 
readable region)!
+  destination "%eax" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: gnome-shell
  StacktraceTop:
-  meta_window_is_on_primary_monitor () from 
/usr/lib/x86_64-linux-gnu/libmutter-1.so.0
-  ?? () from /usr/lib/x86_64-linux-gnu/libmutter-1.so.0
-  meta_window_on_all_workspaces_changed () from 
/usr/lib/x86_64-linux-gnu/libmutter-1.so.0
-  meta_window_update_monitor () from /usr/lib/x86_64-linux-gnu/libmutter-1.so.0
-  g_slist_foreach () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
+  meta_window_is_on_primary_monitor () from 
/usr/lib/x86_64-linux-gnu/libmutter-1.so.0
+  ?? () from /usr/lib/x86_64-linux-gnu/libmutter-1.so.0
+  meta_window_on_all_workspaces_changed () from 
/usr/lib/x86_64-linux-gnu/libmutter-1.so.0
+  meta_window_update_monitor () from /usr/lib/x86_64-linux-gnu/libmutter-1.so.0
+  g_slist_foreach () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
  Title: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()
  UpgradeStatus: Upgraded to artful on 2017-08-31 (3 days ago)
  UserGroups: adm cdrom dip libvirt lpadmin plugdev sambashare sudo

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  gnome-shell crashed with SIGSEGV in
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[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

[Bug Watch Updater]

** Changed in: gnome-shell
   Status: Unknown => Fix Released

** Changed in: gnome-shell
   Importance: Unknown => Critical

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Title:
  gnome-shell crashed with SIGSEGV in
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[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

[Daniel van Vugt]

Looks like:
https://bugzilla.gnome.org/show_bug.cgi?id=730551

** Bug watch added: GNOME Bug Tracker #730551
   https://bugzilla.gnome.org/show_bug.cgi?id=730551

** Also affects: gnome-shell via
   https://bugzilla.gnome.org/show_bug.cgi?id=730551
   Importance: Unknown
   Status: Unknown

** Bug watch added: GNOME Bug Tracker #787637
   https://bugzilla.gnome.org/show_bug.cgi?id=787637

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  gnome-shell crashed with SIGSEGV in
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[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

[Daniel van Vugt]

And also:
https://bugzilla.gnome.org/show_bug.cgi?id=787637

maybe related: bug 1717170

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[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

[Jh]

Well i didnt think of that, so I tried it, too. When I turn off my Display that 
is connected via Displayport, the Gnomeshell is killed after turning the Screen 
on again. After turning on the Screen the login-window can be seen.
When you log in, its a new Session.
That would explain why in Bug #1718671 the session is only crashing after when 
you want to unlock the Screen, because the Display was turned off after locking 
the screen.

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  gnome-shell crashed with SIGSEGV in
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[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

[Rocko]

FWIW, I can reproduce this crash every time simply by turning off the
HDMI monitor attached to my NUC (ref bug #1719808), and it's a
regression since early August (my Aug 11 snapshot doesn't have this
problem).

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  gnome-shell crashed with SIGSEGV in
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[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

[uklas]

** Changed in: gnome-shell (Ubuntu)
 Assignee: (unassigned) => uklas (uklasius)

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  gnome-shell crashed with SIGSEGV in
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[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: gnome-shell (Ubuntu)
   Status: New => Confirmed

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  gnome-shell crashed with SIGSEGV in
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[Bug 1714886] Re: gnome-shell crashed with SIGSEGV in meta_window_is_on_primary_monitor()

[Daniel van Vugt]

** Information type changed from Private to Public

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  gnome-shell crashed with SIGSEGV in
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