gnome-shell-portal-helper crashed with SIGTRAP in waitUntilSyncedOrDie() from WebKit::XDGDBusProxy::launch() ["bwrap: setting up uid map: Permission denied" ; "Failed to fully launch dbus-proxy: Child process exited with code 1"]

[Marcelo Carvalho]

Same as Summary

ProblemType: Crash
DistroRelease: Ubuntu 24.04
Package: gnome-shell 45.3-1ubuntu1
ProcVersionSignature: Ubuntu 6.6.0-14.14-generic 6.6.3
Uname: Linux 6.6.0-14-generic x86_64
ApportVersion: 2.27.0-0ubuntu6
Architecture: amd64
CasperMD5CheckResult: pass
CrashCounter: 1
CurrentDesktop: ubuntu:GNOME
Date: Mon Jan 29 08:56:29 2024
DisplayManager: gdm3
ExecutablePath: /usr/libexec/gnome-shell-portal-helper
InstallationDate: Installed on 2024-01-25 (4 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Daily amd64 (20240116)
ProcCmdline: /usr/libexec/gnome-shell-portal-helper
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 XDG_RUNTIME_DIR=<set>
RelatedPackageVersions: mutter-common 45.3-1ubuntu1
Signal: 5
SourcePackage: gnome-shell
StacktraceTop:
 ?? () from /lib/x86_64-linux-gnu/libwebkitgtk-6.0.so.4
 ?? () from /lib/x86_64-linux-gnu/libwebkitgtk-6.0.so.4
 ?? () from /lib/x86_64-linux-gnu/libwebkitgtk-6.0.so.4
 ?? () from /lib/x86_64-linux-gnu/libwebkitgtk-6.0.so.4
 ?? () from /lib/x86_64-linux-gnu/libwebkitgtk-6.0.so.4
Title: gnome-shell-portal-helper crashed with signal 5
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sudo users
separator:

[Marcelo Carvalho (mcarvalho-astranis)]

Thank you.

[Apport retracing service (apport)]

StacktraceTop:
 waitUntilSyncedOrDie () at /usr/src/webkit2gtk-2.43.3-1/Source/WebKit/UIProcess/Launcher/glib/XDGDBusProxy.cpp:180
 WebKit::XDGDBusProxy::launch () at /usr/src/webkit2gtk-2.43.3-1/Source/WebKit/UIProcess/Launcher/glib/XDGDBusProxy.cpp:241
 WebKit::bubblewrapSpawn () at /usr/src/webkit2gtk-2.43.3-1/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp:902
 WebKit::ProcessLauncher::launchProcess () at /usr/src/webkit2gtk-2.43.3-1/Source/WebKit/UIProcess/Launcher/glib/ProcessLauncherGLib.cpp:226
 WebKit::ProcessLauncher::create () at /usr/src/webkit2gtk-2.43.3-1/Source/WebKit/UIProcess/Launcher/ProcessLauncher.h:112

[Marcelo Carvalho (mcarvalho-astranis)]

I can confirm it happened to me all the time when tryin 24.04.

_M

On Mon, Jan 29, 2024 at 7:35 PM Daniel van Vugt <email address hidden>
wrote:

> ** Summary changed:
>
> - WiFi connecting gives error message every time but connects - Ubuntu
> 24.04
> + gnome-shell-portal-helper crashed with SIGTRAP in waitUntilSyncedOrDie()
> from WebKit::XDGDBusProxy::launch()
>
> ** Information type changed from Private to Public
>
> ** Also affects: webkit2gtk (Ubuntu)
> Importance: Undecided
> Status: New
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/2051574
>
> Title:
> gnome-shell-portal-helper crashed with SIGTRAP in
> waitUntilSyncedOrDie() from WebKit::XDGDBusProxy::launch()
>
> Status in gnome-shell package in Ubuntu:
> New
> Status in webkit2gtk package in Ubuntu:
> New
>
> Bug description:
> Same as Summary
>
> ProblemType: Crash
> DistroRelease: Ubuntu 24.04
> Package: gnome-shell 45.3-1ubuntu1
> ProcVersionSignature: Ubuntu 6.6.0-14.14-generic 6.6.3
> Uname: Linux 6.6.0-14-generic x86_64
> ApportVersion: 2.27.0-0ubuntu6
> Architecture: amd64
> CasperMD5CheckResult: pass
> CrashCounter: 1
> CurrentDesktop: ubuntu:GNOME
> Date: Mon Jan 29 08:56:29 2024
> DisplayManager: gdm3
> ExecutablePath: /usr/libexec/gnome-shell-portal-helper
> InstallationDate: Installed on 2024-01-25 (4 days ago)
> InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Daily amd64
> (20240116)
> ProcCmdline: /usr/libexec/gnome-shell-portal-helper
> ProcEnviron:
> LANG=en_US.UTF-8
> PATH=(custom, no user)
> SHELL=/bin/bash
> XDG_RUNTIME_DIR=<set>
> RelatedPackageVersions: mutter-common 45.3-1ubuntu1
> Signal: 5
> SourcePackage: gnome-shell
> StacktraceTop:
> ?? () from /lib/x86_64-linux-gnu/libwebkitgtk-6.0.so.4
> ?? () from /lib/x86_64-linux-gnu/libwebkitgtk-6.0.so.4
> ?? () from /lib/x86_64-linux-gnu/libwebkitgtk-6.0.so.4
> ?? () from /lib/x86_64-linux-gnu/libwebkitgtk-6.0.so.4
> ?? () from /lib/x86_64-linux-gnu/libwebkitgtk-6.0.so.4
> Title: gnome-shell-portal-helper crashed with signal 5
> UpgradeStatus: No upgrade log present (probably fresh install)
> UserGroups: adm cdrom dip lpadmin plugdev sudo users
> separator:
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/2051574/+subscriptions
>
>

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[Launchpad Janitor (janitor)]

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

[Karol (wasowski02)]

The issue is still present in a clean installation from noble beta iso. It appears whenever the system is waken up from sleep.

[Lucas (lucky8919)]

Issue present on installed today 24.04, during initial boot

[Lucas (lucky8919)]

Any workaround for this?

[ajg (goesele)]

I have the same problem on Ubuntu 24.04 with all updates. But there is a workaround, as gnome-shell-portal-helper isn't strictly needed.

If you connect to a public wifi which then doesn't allow you to access the internet, because you didn't accept terms of service and didn't log in, you can do it manually:

Try to connect your browser to for instance http://8.8.8.8 (any ip-number will do, but you have to use "http", not "https". This will lead you to the login page. I tested it with firefox.

The source of all my wisdom: https://askubuntu.com/a/1378966

[Daniel van Vugt (vanvugt)]

Tracking in: https://errors.ubuntu.com/problem/6663c45a624f39b5e10436ce7378696b80c446e1

[Marco Trevisan (Treviño) (3v1n0)]

I've asked to Michael Catanzaro that maintains webkit gtk and here's his analysis:

```
Jan 29 08:56:29 hostname org.gnome.Shell.PortalHelper[2906]: bwrap: Creating new namespace failed: Permission denied
Jan 29 08:56:29 hostname gnome-shell-por[2712]: Failed to fully launch dbus-proxy: Child process exited with code 1
```

xdg-dbus-proxy gets run under bubblewrap because we need to put the .flatpak-info file into the filesystem namespace of the xdg-dbus-proxy

It looks like bubblewrap doesn't have permission to create a new user namespace. That's probably an apparmor problem?

Maybe it only happens in a non-default apparmor configuration?

Maybe a problem with https://ubuntu.com/blog/ubuntu-23-10-restricted-unprivileged-user-namespaces ?

[Daniel van Vugt (vanvugt)]

Some log snippets from Ubuntu crash reports:

---

org.gnome.Shell.PortalHelper[3349]: bwrap: setting up uid map: Permission denied
gnome-shell-por[3215]: Failed to fully launch dbus-proxy: Sub processo terminou com o código 1

---

org.gnome.Shell.PortalHelper[139725]: bwrap: setting up uid map: Permission denied
gnome-shell-por[139684]: Failed to fully launch dbus-proxy: Child process exited with code 1

---

org.gnome.Shell.PortalHelper[8043]: bwrap: setting up uid map: Permission denied
gnome-shell-por[8005]: Failed to fully launch dbus-proxy: 子进程已退出，代码 1

---

org.gnome.Shell.PortalHelper[2723]: bwrap: setting up uid map: Permission denied
gnome-shell-por[2660]: Failed to fully launch dbus-proxy: Child process exited with code 1

---

org.gnome.Shell.PortalHelper[8728]: bwrap: setting up uid map: Permission denied
gnome-shell-por[8690]: Failed to fully launch dbus-proxy: Child process exited with code 1