Segmentation fault (core dumped) when opening Physical Printer tab on Linux Mint 21.3

[gknapp]

Description of the bug

Opening PrusaSlicer 2.8.1 (using .AppImage) and selecting the Physical Printer tab initially shows the klipper / mainsail Initialising bar but then crashes the whole application. I ran the .AppImage via the terminal to see what console output I'd see, all I get is "Segmentation fault (core dumped)".

I've a separate issue with 2.9.0 using flatpak where PrusaSlicer will not resolve my mDNS hostname (xyz.local) but 2.8.1 will - so it behaves differently (no crash).

Project file & How to reproduce

Opening PrusaSlicer 2.8.1, with a printer configured for Host Type 'Klipper (via Moonraker)' and a hostname specified:

• Select the Physical Printer tab

Checklist of files included above

• Project file
• Screenshot

Version of PrusaSlicer

2.8.1

Operating system

Linux Mint 21.3

Printer model

FlyingBear Ghost 6

[gknapp]

This has happened on earlier versions:

Klipper: v0.12.0-404-g80d185c94
Moonraker: v0.9.3-3-gccfe32f2
Mailsail: v2.13.0

Opening the printer host / mailsail in a Chromium browser works without issue.

[SorrelArticulata]

I have the same problem.

Crash occurs when I try to view the Physical Printer tab in:

• flatpak com.prusa3d.PrusaSlicer 2.9.0 (official build)
• PrusaSlicer-2.9.0-alpha1-x86_64.AppImage (unofficial build from 2.9.0-rc1 - AppImage #13653)

Crash does NOT occur in:

• PrusaSlicer-2.8.1+linux-x64-newer-distros-GTK3-202409181416.AppImage (everything works perfectly)
• Firefox
• surf (a webkit/GTK based browser)
• badwolf (another webkit browser)

My distro is Void Linux x86_64 glibc

Flatpak logs for official 2.9.0 release:

$ flatpak run com.prusa3d.PrusaSlicer && read
--------------------------------------------------------------------------
Message: 18:29:41: Starting PrusaSlicer flatpak with entrypoint script
--------------------------------------------------------------------------

(prusa-slicer:8): IBUS-WARNING **: 18:29:41.135: Unable to connect to ibus: Could not connect: No such file or directory
[2024-12-24 18:29:44.316454] [0x00007ff057e65740] [error]   UserAccount: Failed to read token - no datafile found.
[2024-12-24 18:29:44.418492] [0x00007ff0117fa6c0] [error]   DBus Connection Error: Failed to connect to socket /tmp/dbus-ZvpVNAoaR0: No such file or directory
[2024-12-24 18:29:44.418503] [0x00007ff0117fa6c0] [error]   Dbus Messages listening terminating.
18:29:44: Debug: window wxTreeCtrl@0x55dd497ceca0 ("treeCtrl") lost focus even though it didn't have it
18:29:44: Debug: window wxTreeCtrl@0x55dd497ceca0 ("treeCtrl") lost focus even though it didn't have it
18:29:44: Debug: window wxTreeCtrl@0x55dd497ceca0 ("treeCtrl") lost focus even though it didn't have it
18:29:44: Debug: window wxTreeCtrl@0x55dd497ceca0 ("treeCtrl") lost focus even though it didn't have it
18:29:44: Debug: window wxTreeCtrl@0x55dd497ceca0 ("treeCtrl") lost focus even though it didn't have it
18:29:44: Debug: window wxTreeCtrl@0x55dd497ceca0 ("treeCtrl") lost focus even though it didn't have it

(process:56): pxbackend-WARNING **: 18:29:46.131: Could not access dbus session: Could not connect: No such file or directory
ERROR: WebKit encountered an internal error. This is a WebKit bug.
/buildstream/gnome/sdk/webkit2gtk-4.1.bst/Source/WebKit/WebProcess/Network/WebLoaderStrategy.cpp(562) : internallyFailedLoadTimerFired

Unofficial 2.9.0 appimage from #13653 (doe not have dbus/ibus warnings, but crashes just the same)

$ ./PrusaSlicer-2.9.0-alpha1-x86_64.AppImage && read
fusermount version: 2.9.9
[2024-12-24 18:33:22.775906] [0x00007fbff259e7c0] [error]   UserAccount: Failed to read token - no datafile found.
18:33:23: Debug: window wxTreeCtrl@0x55557346a000 ("treeCtrl") lost focus even though it didn't have it
18:33:23: Debug: window wxTreeCtrl@0x55557346a000 ("treeCtrl") lost focus even though it didn't have it
18:33:23: Debug: window wxTreeCtrl@0x55557346a000 ("treeCtrl") lost focus even though it didn't have it
18:33:23: Debug: window wxTreeCtrl@0x55557346a000 ("treeCtrl") lost focus even though it didn't have it
18:33:23: Debug: window wxTreeCtrl@0x55557346a000 ("treeCtrl") lost focus even though it didn't have it
18:33:23: Debug: window wxTreeCtrl@0x55557346a000 ("treeCtrl") lost focus even though it didn't have it
Segmentation fault
ERROR: WebKit encountered an internal error. This is a WebKit bug.
./Source/WebKit/WebProcess/Network/WebLoaderStrategy.cpp(562) : internallyFailedLoadTimerFired

System info:

$ # Voidlinux x86_64 glibc

$ uname -a
Linux xxx 6.12.6_3 #1 SMP PREEMPT_DYNAMIC Sat Dec 21 23:48:13 UTC 2024 x86_64 GNU/Linux

$ /usr/lib/libc.so.6 
GNU C Library (GNU libc) stable release version 2.39.
Copyright (C) 2024 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Compiled by GNU CC version 13.2.0.
libc ABIs: UNIQUE IFUNC ABSOLUTE
Minimum supported kernel: 3.2.0
For bug reporting instructions, please see:
<https://www.gnu.org/software/libc/bugs.html>.

 $ xbps-query -s webkit
[*] libwebkit2gtk41-2.44.2_1 GTK+3 port of the WebKit browser engine (soup3)
[*] libwebkitgtk60-2.44.2_1  GTK4 port of the WebKit browser engine
[*] libwpe-1.16.0_1          General-purpose library for WPE WebKit
[*] qt5-webkit-5.212.0_16    Cross-platform application and UI framework (Qt5) - WebKit2 component
[*] webkit2gtk-2.44.2_1      GTK+3 port of the WebKit browser engine