[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Launchpad Bug Tracker]

This bug was fixed in the package gnome-shell - 3.28.2-0ubuntu0.18.04.1

---
gnome-shell (3.28.2-0ubuntu0.18.04.1) bionic; urgency=medium

  [ Olivier Tilloy ]
  * New upstream release (LP: #1775145)
- fixes valid password rejection at login screen (LP: #1765261)
  * Drop patches applied upstream:
- debian/patches/polkitAgent-Guard-against-repeated-close-calls.patch
- debian/patches/popupMenu-Fix-wrong-call-to-clutter_actor_add_child.patch
- 
debian/patches/workspaceThumbnail-initialize-porthole-based-on-workArea.patch
- 
debian/patches/workspaceThumbnail-only-update-_porthole-if-the-overview-.patch
- 
debian/patches/workspaceThumbnail-rebuild-thumbnails-if-workareas-size-c.patch

  [ Andrea Azzarone ]
  * debian/patches/ubuntu_lock_on_suspend.patch: inhibit suspend until the
screen is locked also in the case where automatic screen lock is disabled
and screen lock on suspend is enabled (LP: #1768786)

  [ Marco Trevisan (Treviño) ]
  * Cherry pick upstream patches:
- debian/patches/st-label-Unset-clutter-text-instance-on-disposal.patch 
(LP: #1714989)
  * debian/patches/st-texture-cache-Don-t-add-NULL-textures-to-cache.patch:
- Cherry pick updated version from upstream, splitted in:
+ debian/patches/st-texture-cache-Don-t-add-NULL-textures-to-cache.patch
+ 
debian/patches/st-texture-cache-Save-cairo-surfaces-to-a-different-map.patch
  * 
debian/patches/authPrompt-Do-not-enable-sensitivity-if-retries-are-disal.patch
debian/patches/authPrompt-Unset-preemptiveAnswer-on-reset.patch
debian/patches/gdm-util-Always-allow-to-retry-login-in-unlock-mode.patch:
- GDM gnome-shell greeter fix to fix unneeded login attempts (LP: #1777956)
  * debian/patches/series:
- reorder to apply upstream cherry-picks before the others

  [ Daniel van Vugt ]
  * debian/patches/magnifier.js-Fix-zoom-juddering.patch:
- magnifier.js: Fix zoom juddering (LP: #1691675)

 -- Marco Trevisan   Tue, 21 Jun 2018 01:45:42 +0200

** Changed in: gnome-shell (Ubuntu Bionic)
   Status: Fix Committed => Fix Released

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Robert Mader]

The patch got accepted upstream for gnome-shell 3.30. And hopefully for
some 3.28.3 version.

For Fedora users who end up here because it's the top entry on a common
search engine, the corresponding bug entry is here:
https://bugzilla.redhat.com/show_bug.cgi?id=1489554

** Bug watch added: Red Hat Bugzilla #1489554
   https://bugzilla.redhat.com/show_bug.cgi?id=1489554

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Sebastien Bacher]

Using 3.28.2-0ubuntu0.18.04.1 there are no visible issues and the error
report page has no entry for this version

** Tags removed: verification-needed verification-needed-bionic
** Tags added: verification-done verification-done-bionic

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Treviño]

** Changed in: gjs (Ubuntu Bionic)
   Status: New => Won't Fix

** Changed in: gjs (Ubuntu)
   Status: Confirmed => Triaged

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Brian Murray]

Hello Paul, or anyone else affected,

Accepted gnome-shell into bionic-proposed. The package will build now
and be available at https://launchpad.net/ubuntu/+source/gnome-
shell/3.28.2-0ubuntu0.18.04.1 in a few hours, and then in the -proposed
repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-bionic to verification-done-bionic. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-bionic. In either case, without details of
your testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: gnome-shell (Ubuntu Bionic)
   Status: New => Fix Committed

** Tags added: verification-needed verification-needed-bionic

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Brian Murray]

** Also affects: gjs (Ubuntu Bionic)
   Importance: Undecided
   Status: New

** Also affects: gnome-shell (Ubuntu Bionic)
   Importance: Undecided
   Status: New

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Daniel van Vugt]

OK then. Forget bug 1759621. Let's continue using this one.

** Changed in: gjs (Ubuntu)
   Status: Invalid => Confirmed

** Changed in: gjs (Ubuntu)
 Assignee: (unassigned) => Marco Trevisan (Treviño) (3v1n0)

** Description changed:

  Saw some reports with the same title but they're all for previous
  versions.
  
- error report:
+ error reports:
  https://errors.ubuntu.com/problem/1c95cc2653ab00054b5d1764e41d974328a5f49d
+ https://errors.ubuntu.com/problem/811164cadd3e9e891f9e2d439bda59925f91a62c
  
  [ Impact ]
  
  gnome-shell crashes
  
  [ Test case ]
  
  1. No clear test case for this issue.
  
  Some extensions (clipboard indicator) seems to trigger it, but there's
  no an an easy and reproducible test-case for this so far.
  
  So install "clipboard indicator" indicator and expect this to run
  properly.
  
  [ Regression Potential ]
  
  Nothing really should be regressing.
  Labels could not be updated correctly on disposed labels (not destroyed yet).
- 
  
  ProblemType: CrashDistroRelease: 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
  NonfreeKernelModules: nvidia_uvm nvidia
  ApportVersion: 2.20.7-0ubuntu1
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Sep  4 16:52:13 2017
  DisplayManager: gdm3
  EcryptfsInUse: Yes
  ExecutablePath: /usr/bin/gnome-shell
  InstallationDate: Installed on 2017-04-21 (135 days ago)
  InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
  ProcCmdline: /usr/bin/gnome-shell
  ProcEnviron:
   LANGUAGE=en_GB:en
   PATH=(custom, user)
   XDG_RUNTIME_DIR=
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x7fd97c8e7e5d :
movzbl 0x16(%rax),%edx
   PC (0x7fd97c8e7e5d) ok
   source "0x16(%rax)" (0xeb1e) not located in a known VMA region (needed 
readable region)!
   destination "%edx" ok
  SegvReason: reading NULL VMA
  Signal: 11SourcePackage: gnome-shell
  StacktraceTop:
   g_type_check_instance_cast () from 
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
   st_label_set_text () from /usr/lib/gnome-shell/libst-1.0.so
   ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6
   ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.6
   ?? () from /usr/lib/libgjs.so.0
  Title: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Treviño]

** Description changed:

  Saw some reports with the same title but they're all for previous
  versions.
  
  error report:
  https://errors.ubuntu.com/problem/1c95cc2653ab00054b5d1764e41d974328a5f49d
  
- ProblemType: Crash
- DistroRelease: Ubuntu 17.10
+ [ Impact ]
+ 
+ gnome-shell crashes
+ 
+ [ Test case ]
+ 
+ 1. No clear test case for this issue.
+ 
+ Some extensions (clipboard indicator) seems to trigger it, but there's
+ no an an easy and reproducible test-case for this so far.
+ 
+ So install "clipboard indicator" indicator and expect this to run
+ properly.
+ 
+ [ Regression Potential ]
+ 
+ Nothing really should be regressing.
+ Labels could not be updated correctly on disposed labels (not destroyed yet).
+ 
+ 
+ ProblemType: CrashDistroRelease: 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
  NonfreeKernelModules: nvidia_uvm nvidia
  ApportVersion: 2.20.7-0ubuntu1
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Sep  4 16:52:13 2017
  DisplayManager: gdm3
  EcryptfsInUse: Yes
  ExecutablePath: /usr/bin/gnome-shell
  InstallationDate: Installed on 2017-04-21 (135 days ago)
  InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
  ProcCmdline: /usr/bin/gnome-shell
  ProcEnviron:
   LANGUAGE=en_GB:en
   PATH=(custom, user)
   XDG_RUNTIME_DIR=
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SegvAnalysis:
   Segfault happened at: 0x7fd97c8e7e5d :
movzbl 0x16(%rax),%edx
   PC (0x7fd97c8e7e5d) ok
   source "0x16(%rax)" (0xeb1e) not located in a known VMA region (needed 
readable region)!
   destination "%edx" ok
  SegvReason: reading NULL VMA
- Signal: 11
- SourcePackage: gnome-shell
+ Signal: 11SourcePackage: gnome-shell
  StacktraceTop:
   g_type_check_instance_cast () from 
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
   st_label_set_text () from /usr/lib/gnome-shell/libst-1.0.so
   ffi_call_unix64 () from /usr/lib/x86_64-linux-gnu/libffi.so.6
   ffi_call () from /usr/lib/x86_64-linux-gnu/libffi.so.6
   ?? () from /usr/lib/libgjs.so.0
  Title: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Daniel van Vugt]

Closing this bug, but it continues in bug 1759621.

** Changed in: gjs (Ubuntu)
   Status: Confirmed => Invalid

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Daniel van Vugt]

It's still happening in 3.28.0: bug 1759621

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Launchpad Bug Tracker]

This bug was fixed in the package gnome-shell - 3.27.91-0ubuntu1

---
gnome-shell (3.27.91-0ubuntu1) bionic; urgency=medium

  [ Didier Roche ]
  * New upstream version (LP: #1751070, LP: #1722725,
LP: #1714989, LP: #1724557, LP: #1723857, LP: #1744970):
- debian/patches/70_allow_sound_above_100.patch,
  debian/patches/ubuntu-lightdm-user-switching.patch patches
  refreshed for new release. Removed ': function()' syntax as
  upstreamed removed them in those context.
- debian/patches/ubuntu_panel_center_date_workarea.patch removed as
  upstreamed now.
- debian/control.in, debian/rules:
  bump deps, add sassc and libnm-dev which is now required.
  drop caribou dep, as the OSK is now built-in.
- debian/rules:
  use now with renamed build options.
  * debian/ubuntu-session-mods/ubuntu.css, debian/rules:
- adapt to new GNOME Shell theme including OSK.
- color shift keys in orange in OSK and use differente svg.
  * debian/rules:
- some duplication removal.
  * debian/patches/27-nm-libexec-path.patch,
debian/patches/71_smarter_alt_tab.patch,
debian/patches/fix-wayland-vbox-crash.patch,
debian/patches/optional-hot-corner.patch,
debian/patches/ubuntu_block_mode_extension_update.patch,
debian/patches/ubuntu_gdm.patch,
debian/patches/ubuntu_lock_on_suspend.patch:
- unfuzzed
  * Cherry-pick git_ea0770ae22a6c34797db4343cf7d2f59bb8d68f6.patch:
- upstream mutter API bump.
  * debian/gnome-shell-common.install, debian/rules:
- the .css files aren't shipped anymore, so copy from the built version.

  [ Jeremy Bicha ]
  * Update NetworkManager dependencies

 -- Didier Roche   Fri, 02 Mar 2018 10:04:06 +0100

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

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Daniel van Vugt]

** Tags added: fixed-in-3.26.3

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Apport retracing service]

** Tags added: bionic

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[fermulator]

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

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Daniel van Vugt]

It appears the fix for this bug is scheduled for release in gnome-shell,
specifically 3.26.3:

https://git.gnome.org/browse/gnome-
shell/commit/?h=gnome-3-26=3b4be770a0590bcee9c739f3d9264320e23d555b

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[André]

Marco, thanks for the context and the steps you and the team are taking
to resolve this issue more broadly. Linking js and C is bound to have
these problems.

And it seems that the extensions are also maturing and dealing with the
bug reports.

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[anagor]

I'm running gnome-shell on upgraded Ubuntu 17.10 with X server, not Wayland, 
due to other compatibility issues.
In my case if I lock the desktop but the gnome-shell is restarted because of 
segfault it kills the lock screen and leaves the desktop completely open with 
the user logged in.

I therefore think that this bug as it manifests in ubuntu's gnome-shell
should be upgraded to critical/security.

Thank you,

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Luis Alberto Pabón]

Thank you, would be great to have this backported into 17.10 as this is
causing me occasional login issues with the set of extensions I have
installed.

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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Re: [Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Treviño]

2017-12-04 23:50 GMT-05:00 dino99 <1714...@bugs.launchpad.net>:
> new gjs available:
> http://ftp.gnome.org/pub/GNOME/sources/gjs/1.51/gjs-1.51.2.news


The fix isn't included in that release yet, however I've just pushed
upstream a backport for the gnome-3.26 branch, so it might be
available at next point release.

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[dino99]

new gjs available:
http://ftp.gnome.org/pub/GNOME/sources/gjs/1.51/gjs-1.51.2.news

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Launchpad Bug Tracker]

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

** Changed in: gjs (Ubuntu)
   Status: New => Confirmed

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Treviño]

Adding gjs here as it's the one that should avoid such hard crashes.

In order to avoid them I've prepared a pull request for upstream
 https://gitlab.gnome.org/GNOME/gjs/merge_requests/22

And that works quite well in such cases, let's see what upstream thinks.

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

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Treviño]

André, this is something we discussed a bit upstream (see comments
starting from https://bugzilla.gnome.org/show_bug.cgi?id=788931#c61).

So as said it would be better not to make it crash, the shell too...
However it's something gjs should probably handle better, but I'm not
sure how this is something that could be wanted or not upstream. I'm
looking how to manage that, though.

It's even true that those extensions should not play with objects that
might have been destroyed on their async functions, then they need to be
fixed too.

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  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[André]

@marco, should an extension be able to crash a gnome-shell session?

This does not seem right, I'm sure it is not that simple, but if this by
design then there should be a warning on gnome-extensions, or some
information on next session startup (or disable them all).

It took me a while to understand which extension was causing the
problem. And while I disabled some that were described in this bug
report, those were not causing it. For me it was dash-to-dock and now it
one is triggered by low disk notification

The only pattern I've detected is that it was always triggered by
notifications.

Anyway...  i feel that this creates frustration and a bad user
experience as I had to install an alternative environment for those
critical moments where it has to work (and cannot afford to free
space/disable extensions/debug)

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  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Treviño]

Well, you won't be able to catch it immediately.

But when you restart your session, journalctl will still contain the
trace

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  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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Re: [Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

[gadLinux]

Hi Marco,

Good. I will give it a try. But since the whole screen get freezed I
don't know if I will able catch anything.

Best regards,


On 21/11/17 17:08, Marco Trevisan (Treviño) wrote:
> GadLinux, not so hard now... We've added tools in gnome-shell to show
> this in the journal.
>
> Or just follow this https://is.gd/wiki_gnome_shell_crash_debug to see
> what's crashing.
>
> Anyway, the fix for the issue of GS is in gnome, will be released in
> next point release.
>
> ** Summary changed:
>
> - gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from 
> st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]
> + gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from 
> st_label_set_text() from ffi_call_unix64()
>

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  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64()

[Bug Watch Updater]

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

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

[Treviño]

GadLinux, not so hard now... We've added tools in gnome-shell to show
this in the journal.

Or just follow this https://is.gd/wiki_gnome_shell_crash_debug to see
what's crashing.

Anyway, the fix for the issue of GS is in gnome, will be released in
next point release.

** Summary changed:

- gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from 
st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]
+ gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from 
st_label_set_text() from ffi_call_unix64()

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64()

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Re: [Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

[gadLinux]

Hi,

Yes, but's quite difficult for normal user know what's the plugin that's
behaving wrong.

Best regards,


On 17/11/17 22:40, Marco Trevisan (Treviño) wrote:
> Thanks for all these reports...
>
> Unfortunately all these issues are unrelated to the shell itself, but I
> please you guys to report these crashes to the extensions authors (as I
> already did in various cases, proposing fixes too).
>
> In fact, what I suspect might have changed is the way gjs (or new mozjs)
> handles the destruction of the actors (as js elements)... Or the shell
> itself might destroy the extension actors at its request.
>
> When this happens, the extensions should block all the async operations
> that are happening, so as a generic rule I guess they should connect to
> the extension actor "destroy" signal and stop all the async operations
> there.
>

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  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

[Treviño]

Thanks for all these reports...

Unfortunately all these issues are unrelated to the shell itself, but I
please you guys to report these crashes to the extensions authors (as I
already did in various cases, proposing fixes too).

In fact, what I suspect might have changed is the way gjs (or new mozjs)
handles the destruction of the actors (as js elements)... Or the shell
itself might destroy the extension actors at its request.

When this happens, the extensions should block all the async operations
that are happening, so as a generic rule I guess they should connect to
the extension actor "destroy" signal and stop all the async operations
there.

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  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

[François-Xavier Thomas]

By the way, comment #48 is on Ubuntu Artful, latest packages at the time
of writing, with Gnome Shell 3.26.1-0ubuntu4.

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  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

[François-Xavier Thomas]

I have (what looks like) the same issue with another extension
(specifically this commit: https://github.com/projecthamster/hamster-
shell-extension/tree/07cea1824291cb818befd5fb473a065abe334bde).

The crash does not always happen (is it a race condition?), but, when it
does, it always occurs right when clicking on a button to close a
window.

JS and GDB stack traces are below, and I can provide a core dump and
other debugging info if necessary.

--

JS stack trace :

org.gnome.Shell.desktop[2778]: == Stack trace for context 0x562dad808000 ==
org.gnome.Shell.desktop[2778]: #0 0x7ffdd07c5520 b   
/home/fx/.local/share/gnome-shell/extensions/hams...@projecthamster.wordpress.com/widgets/panelWidget.js:245
 (0x7fa98fe16890 @ 105)
org.gnome.Shell.desktop[2778]: #1 0x7ffdd07c5580 I   
resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7fa9e83c2c48 @ 71)
org.gnome.Shell.desktop[2778]: #2 0x7ffdd07c5650 b   
/home/fx/.local/share/gnome-shell/extensions/hams...@projecthamster.wordpress.com/widgets/panelWidget.js:186
 (0x7fa98fe16670 @ 208)
org.gnome.Shell.desktop[2778]: #3 0x7ffdd07c56f0 I   self-hosted:917 
(0x7fa9e83ee4d8 @ 394)
org.gnome.Shell.desktop[2778]: #4 0x7ffdd07c57c0 b   
resource:///org/gnome/gjs/modules/overrides/Gio.js:90 (0x7fa9e8103670 @ 118)
kernel: gnome-shell[2778]: segfault at 10016 ip 7faa120f3e0d sp 
7ffdd07c4e30 error 4 in libgobject-2.0.so.0.5400.1[7faa120be000+52000]

GDB stack trace :

#0  0x7f4c409ece0d in g_type_check_instance_cast () at 
/usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0
#1  0x7f4c3e15a768 in st_label_set_text (label=0x74a9df60, 
text=0x7754b990 "No activity") at ../src/st/st-label.c:331
#2  0x7f4c3a64be18 in ffi_call_unix64 () at 
/usr/lib/x86_64-linux-gnu/libffi.so.6
#3  0x7f4c3a64b87a in ffi_call () at /usr/lib/x86_64-linux-gnu/libffi.so.6
#4  0x7f4c3f6af3c8 in  () at /usr/lib/libgjs.so.0
#5  0x7f4c3f6b0ca4 in  () at /usr/lib/libgjs.so.0
#6  0x7f4c3763fe6c in  () at /usr/lib/x86_64-linux-gnu/libmozjs-52.so.0
#7  0x7f4c37632eca in  () at /usr/lib/x86_64-linux-gnu/libmozjs-52.so.0
#8  0x7f4c3763f6d6 in  () at /usr/lib/x86_64-linux-gnu/libmozjs-52.so.0
#9  0x7f4c3763fcaf in  () at /usr/lib/x86_64-linux-gnu/libmozjs-52.so.0
#10 0x7f4c3763ff89 in  () at /usr/lib/x86_64-linux-gnu/libmozjs-52.so.0
#11 0x7f4c37433d09 in  () at /usr/lib/x86_64-linux-gnu/libmozjs-52.so.0

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

[Daniel Playfair Cal]

** Attachment added: "Valgrind log of crash occurring (with more debug symbols)"
   
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1714989/+attachment/5001402/+files/17-11-01_09-18-49.valgrind

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  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

[Daniel Playfair Cal]

The JS stack trace from comment 45 is:

 == Stack trace for context 0x22ad77f0 ==
#0   0x1ffeffc980 b   
/usr/share/gnome-shell/extensions/freon@UshakovVasilii_Github.yahoo.com/extension.js:360
 (0x42dbdc48 @ 1995)
#1   0x1ffeffd680 I   resource:///org/gnome/gjs/modules/_legacy.js:82 
(0x3a4c2c48 @ 71)
#2 0x3a981920 i   
/usr/share/gnome-shell/extensions/freon@UshakovVasilii_Github.yahoo.com/extension.js:231
 (0x42dbdb38 @ 17)
#3   0x1ffeffe360 b   self-hosted:913 (0x3a4ee4d8 @ 346)
#4   0x1ffeffeb60 b   
/usr/share/gnome-shell/extensions/freon@UshakovVasilii_Github.yahoo.com/commandLineUtil.js:38
 (0x42dc66f8 @ 454)
#5   0x1ffefff970 b   self-hosted:917 (0x3a4ee4d8 @ 394)

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  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

[Daniel Playfair Cal]

** Attachment added: "Alternative valgrind log of the crash (No JS stack trace)"
   
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1714989/+attachment/5001403/+files/17-11-01_09-12-17.valgrind

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  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

[Sebastien Bacher]

thanks for the valgrind log, that indeed has error but seems to be
missing the gnome-shell and libmozjs debug symbols

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  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

[Daniel Playfair Cal]

I also experience this crash. I don't have global app menu installed but
for me the crash occurs when the following line of code is being
executed in the Freon shell extension: https://github.com/UshakovVasilii
/gnome-shell-extension-
freon/blob/f9756b2430b3766c3d21d71e9928963032617bf7/freon%40UshakovVasilii_Github.yahoo.com/extension.js#L360

I've attached a valgrind log of the crash occurring. There is a whole
lot of seemingly related bad memory access before the crash occurs.

For me it happens sometimes immediately after logging in, but before the
shell successfully loads. I assume it only happens if the Freon
extension is installed. I'm on version 29 of the freon shell extension.

** Attachment added: "Valgrind log of crash occurring"
   
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1714989/+attachment/4999830/+files/17-10-30_15-38-21.valgrind

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  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

[Paul]

I've not had one of these crashes since removing Global App Menu. Anyone
else got it installed?

** Summary changed:

- gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from 
st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]
+ gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from 
st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [Global App Menu specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

[Apport retracing service]

** Tags added: bugpattern-needed

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

[Mattéo Delabre]

Thank you Marco for having forwarded the bug to the right developers.

Unfortunately, I have not managed to reduce the crash to a precise set
of steps. I will report back if I manage to make it reproducible.

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

[Paul]

Looking through the journalctl, I saw Global App Menu and also Pixel
Saver were having problems. Hopefully these issues can be fixed. Though
it seems we shouldn't hold out hope for GAM as the author discontinued
it: http://www.omgubuntu.co.uk/2017/09/gnome-global-menu-extension-
discontinued

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

[Treviño]

Mh, that's again caused by another extension (gnomeGlobalAppMenu), but
I'm not sure if the bug is the same, as I don't see any text reference
there.

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

[Treviño]

Mattéo, what are the steps to reproduce your crash?

Just random, or it happens on a particular action?

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

[Paul]

Hopefully this is what you was looking for.

** Attachment added: "stacktraceforcontent.txt"
   
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1714989/+attachment/4987886/+files/stacktraceforcontent.txt

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

[Treviño]

To get that content easily, just attach here the output of:

  journalctl /usr/bin/gnome-shell | grep -A 30  "== Stack trace for
context"

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

[Treviño]

Paul, you uploaded the journalctl itself :)

No, just launch
  journalctl /usr/bin/gnome-shell

And attach here the output of that command please

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  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

[Treviño]

Mateo, that issues is triggered by

This extension file: https://github.com/codito/gnome-
pomodoro/blob/master/plugins/gnome/extension/dialogs.js

So please report the issue upstream (I've done it already in
https://github.com/codito/gnome-pomodoro/issues/317). It seems the
extension doesn't properly disable the timer on actor destruction, and
the method it uses isn't enough for safety check.

** Bug watch added: github.com/codito/gnome-pomodoro/issues #317
   https://github.com/codito/gnome-pomodoro/issues/317

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

[Juerg Haefliger]

I worked with Marco on Friday and he submitted a PR for dash-to-panel
which fixes my crashes. See https://github.com/jderose9/dash-to-
panel/issues/261.


** Bug watch added: github.com/jderose9/dash-to-panel/issues #261
   https://github.com/jderose9/dash-to-panel/issues/261

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

[Daniel van Vugt]

Sure, it probably can't hurt.

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

[Mattéo Delabre]

Sorry for the inconvenience. I’m new to reporting bugs on Launchpad.
Should I post my logs over on the other bug?

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

[Daniel van Vugt]

Mattéo, that is bug 1723705. Not this one.

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

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[Bug 1714989] Re: gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

[Daniel van Vugt]

** Summary changed:

- gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from 
st_label_set_text() (dash-to-panel specific?)
+ gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from 
st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

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Title:
  gnome-shell crashed with SIGSEGV in g_type_check_instance_cast() from
  st_label_set_text() from ffi_call_unix64() [dash-to-panel specific?]

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