Bug#1107960: freecad: Core dump crash when opening / creating file or editing light source in preferences

Arthur Torrey atorrey at comcast.net
Wed Jun 18 03:48:42 BST 2025


Package: freecad
Version: 1.0.0+dfsg-6
Severity: important
X-Debbugs-Cc: atorrey at comcast.net

Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

   * What led up to the situation?
   * What exactly did you do (or not do) that was effective (or
     ineffective)?
   * What was the outcome of this action?
   * What outcome did you expect instead?

*** End of the template - remove these template lines ***

If I start from KDE menu or konsole, it will start and go to normal start page.
If I attempt to
1. Open a new blank project, or existing file
2. Edit preferences, ONLY on trying to get to the "Light source" entry (rest of
preferences edit w/o problems) it immediately disappears, if starting from
konsole I get error message described below.

If I Start w/ an existing file (i.e. selecting a .FCStd file in Dolphin or
"Freecad file.FCStd" in konsole) I get the flash screen and blinking icon in
task bar for a few seconds but they then disappear with the same error message
in konsole:
<start copy>
atorrey at fancybox:~/Medical/invacare/h-frm/CAD/caster-spcr/fcad$ freecad
FreeCAD 1.0.0, Libs: 1.0.0R
(C) 2001-2024 FreeCAD contributors
FreeCAD is free and open-source software licensed under the terms of LGPL2+
license.

QOpenGLFunctions created with non-current context
freecad: ./src/glue/gl.cpp:2249: const cc_glglue* cc_glglue_instance(int):
Assertion `current_ctx && "Must have a current GL context when instantiating
cc_glglue!! (Note: if you are using an old Mesa GL version, set the environment
variable COIN_GL_NO_CURRENT_CONTEXT_CHECK to get around what may be a Mesa
bug.)"' failed.
Aborted (core dumped)
<end copy>

<sample report from Crashed Processes Viewer>
Hint: You are currently not seeing messages from other users and the system.
      Users in groups 'adm', 'systemd-journal' can see all messages.
      Pass -q to turn off this notice.
           PID: 963102 (freecad)
           UID: 1000 (atorrey)
           GID: 1000 (atorrey)
        Signal: 6 (ABRT)
     Timestamp: Mon 2025-06-16 23:59:15 EDT (21h ago)
  Command Line: freecad
    Executable: /usr/lib/freecad/bin/freecad-python3
 Control Group: /user.slice/user-1000.slice/user at 1000.service/app.slice/app-
org.kde.konsole-4970.scope/tab(135866).scope
          Unit: user at 1000.service
     User Unit: app-org.kde.konsole-4970.scope
         Slice: user-1000.slice
     Owner UID: 1000 (atorrey)
       Boot ID: 312f747bc27c4b8fbd96488c0ad52041
    Machine ID: 8b586f4db55e45928af009712ebae6b7
      Hostname: fancybox
       Storage:
/var/lib/systemd/coredump/core.freecad.1000.312f747bc27c4b8fbd96488c0ad52041.963102.1750132755000000.zst
(present)
  Size on Disk: 32.7M
       Message: Process 963102 (freecad) of user 1000 dumped core.

                Module libgfortran.so.5 from deb gcc-14-14.2.0-19.amd64
                Module libgomp.so.1 from deb gcc-14-14.2.0-19.amd64
                Module libblkid.so.1 from deb util-linux-2.41-5.amd64
                Module libudev.so.1 from deb systemd-257.6-1.amd64
                Module libmount.so.1 from deb util-linux-2.41-5.amd64
                Module libsystemd.so.0 from deb systemd-257.6-1.amd64
                Module libatomic.so.1 from deb gcc-14-14.2.0-19.amd64
                Module libzstd.so.1 from deb libzstd-1.5.7+dfsg-1.amd64
                Module libgcc_s.so.1 from deb gcc-14-14.2.0-19.amd64
                Module libstdc++.so.6 from deb gcc-14-14.2.0-19.amd64
                Stack trace of thread 963102:
                #0  0x00007f4f67e9e95c n/a (libc.so.6 + 0x9495c)
                #1  0x00007f4f67e49cc2 raise (libc.so.6 + 0x3fcc2)
                #2  0x00007f4f67e324ac abort (libc.so.6 + 0x284ac)
                #3  0x00007f4f67e32420 n/a (libc.so.6 + 0x28420)
                #4  0x00007f4f6786b039 cc_glglue_instance (libCoin.so.80c +
0x46b039)
                #5  0x00007f4f676ee568
_ZNK17SoGLRenderActionP17isDirectRenderingEPK7SoState (libCoin.so.80c +
0x2ee568)
                #6  0x00007f4f676f0a25 _ZN17SoGLRenderActionP6renderEP6SoNode
(libCoin.so.80c + 0x2f0a25)
                #7  0x00007f4f676e9be2 _ZN8SoAction5applyEP6SoNode
(libCoin.so.80c + 0x2e9be2)
                #8  0x00007f4f6b82643b
_ZN3Gui26SoBoxSelectionRenderAction5applyEP6SoNode (libFreeCADGui.so +
0xa2643b)
                #9  0x00007f4f6b933e13
_ZN3Gui20View3DInventorViewer11renderSceneEv (libFreeCADGui.so + 0xb33e13)
                #10 0x00007f4f6b8e53e5
_ZN3SIM6Coin3D7Quarter13QuarterWidget10paintEventEP11QPaintEvent
(libFreeCADGui.so + 0xae53e5)
                #11 0x00007f4f6b8f1694
_ZN3SIM6Coin3D7Quarter18SoQTQuarterAdaptor10paintEventEP11QPaintEvent
(libFreeCADGui.so + 0xaf1694)
                #12 0x00007f4f693a6038 _ZN7QWidget5eventEP6QEvent
(libQt5Widgets.so.5 + 0x1a6038)
                #13 0x00007f4f69455a92 _ZN6QFrame5eventEP6QEvent
(libQt5Widgets.so.5 + 0x255a92)
                #14 0x00007f4f686ddb33
_ZN23QCoreApplicationPrivate29sendThroughObjectEventFiltersEP7QObjectP6QEvent
(libQt5Core.so.5 + 0x2ddb33)
                #15 0x00007f4f69363042
_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5 +
0x163042)
                #16 0x00007f4f6b4936a8
_ZN3Gui14GUIApplication6notifyEP7QObjectP6QEvent (libFreeCADGui.so + 0x6936a8)
                #17 0x00007f4f686dddd8
_ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5 +
0x2dddd8)
                #18 0x00007f4f6939df87
_ZN14QWidgetPrivate14sendPaintEventERK7QRegion (libQt5Widgets.so.5 + 0x19df87)
                #19 0x00007f4f693c76d0 _ZN13QOpenGLWidget5eventEP6QEvent
(libQt5Widgets.so.5 + 0x1c76d0)
                #20 0x00007f4f69363052
_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5 +
0x163052)
                #21 0x00007f4f6b4936a8
_ZN3Gui14GUIApplication6notifyEP7QObjectP6QEvent (libFreeCADGui.so + 0x6936a8)
                #22 0x00007f4f686dddd8
_ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5 +
0x2dddd8)
                #23 0x00007f4f693a2ac5 _ZN14QWidgetPrivate11show_helperEv
(libQt5Widgets.so.5 + 0x1a2ac5)
                #24 0x00007f4f693a5ac3 _ZN14QWidgetPrivate10setVisibleEb
(libQt5Widgets.so.5 + 0x1a5ac3)
                #25 0x00007f4f693a2a09 _ZN14QWidgetPrivate12showChildrenEb
(libQt5Widgets.so.5 + 0x1a2a09)
                #26 0x00007f4f693a2aa1 _ZN14QWidgetPrivate11show_helperEv
(libQt5Widgets.so.5 + 0x1a2aa1)
                #27 0x00007f4f693a5ac3 _ZN14QWidgetPrivate10setVisibleEb
(libQt5Widgets.so.5 + 0x1a5ac3)
                #28 0x00007f4f693a2a09 _ZN14QWidgetPrivate12showChildrenEb
(libQt5Widgets.so.5 + 0x1a2a09)
                #29 0x00007f4f693a2aa1 _ZN14QWidgetPrivate11show_helperEv
(libQt5Widgets.so.5 + 0x1a2aa1)
                #30 0x00007f4f693a5ac3 _ZN14QWidgetPrivate10setVisibleEb
(libQt5Widgets.so.5 + 0x1a5ac3)
                #31 0x00007f4f693a2a09 _ZN14QWidgetPrivate12showChildrenEb
(libQt5Widgets.so.5 + 0x1a2a09)
                #32 0x00007f4f693a2aa1 _ZN14QWidgetPrivate11show_helperEv
(libQt5Widgets.so.5 + 0x1a2aa1)
                #33 0x00007f4f693a5ac3 _ZN14QWidgetPrivate10setVisibleEb
(libQt5Widgets.so.5 + 0x1a5ac3)
                #34 0x00007f4f69389a75 _ZN14QStackedLayout15setCurrentIndexEi
(libQt5Widgets.so.5 + 0x189a75)
                #35 0x00007f4f6b690252
_ZN3Gui6Dialog17DlgPreferencesImp14onPageSelectedERK11QModelIndex
(libFreeCADGui.so + 0x890252)
                #36 0x00007f4f6871887e n/a (libQt5Core.so.5 + 0x31887e)
                #37 0x00007f4f695e0c29
_ZN17QAbstractItemView7clickedERK11QModelIndex (libQt5Widgets.so.5 + 0x3e0c29)
                #38 0x00007f4f695e549f
_ZN17QAbstractItemView17mouseReleaseEventEP11QMouseEvent (libQt5Widgets.so.5 +
0x3e549f)
                #39 0x00007f4f693a6038 _ZN7QWidget5eventEP6QEvent
(libQt5Widgets.so.5 + 0x1a6038)
                #40 0x00007f4f69455a92 _ZN6QFrame5eventEP6QEvent
(libQt5Widgets.so.5 + 0x255a92)
                #41 0x00007f4f686ddb33
_ZN23QCoreApplicationPrivate29sendThroughObjectEventFiltersEP7QObjectP6QEvent
(libQt5Core.so.5 + 0x2ddb33)
                #42 0x00007f4f69363042
_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5 +
0x163042)
                #43 0x00007f4f6936b37a
_ZN12QApplication6notifyEP7QObjectP6QEvent (libQt5Widgets.so.5 + 0x16b37a)
                #44 0x00007f4f6b4936a8
_ZN3Gui14GUIApplication6notifyEP7QObjectP6QEvent (libFreeCADGui.so + 0x6936a8)
                #45 0x00007f4f686dddd8
_ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5 +
0x2dddd8)
                #46 0x00007f4f693693e2
_ZN19QApplicationPrivate14sendMouseEventEP7QWidgetP11QMouseEventS1_S1_PS1_R8QPointerIS0_Ebb
(libQt5Widgets.so.5 + 0x1693e2)
                #47 0x00007f4f693c001a n/a (libQt5Widgets.so.5 + 0x1c001a)
                #48 0x00007f4f693c352f n/a (libQt5Widgets.so.5 + 0x1c352f)
                #49 0x00007f4f69363052
_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5 +
0x163052)
                #50 0x00007f4f6b4936a8
_ZN3Gui14GUIApplication6notifyEP7QObjectP6QEvent (libFreeCADGui.so + 0x6936a8)
                #51 0x00007f4f686dddd8
_ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5 +
0x2dddd8)
                #52 0x00007f4f68b44e53
_ZN22QGuiApplicationPrivate17processMouseEventEPN29QWindowSystemInterfacePrivate10MouseEventE
(libQt5Gui.so.5 + 0x144e53)
                #53 0x00007f4f68b1679c
_ZN22QWindowSystemInterface22sendWindowSystemEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Gui.so.5 + 0x11679c)
                #54 0x00007f4f622e0e24 n/a (libQt5WaylandClient.so.5 + 0xb4e24)
                #55 0x00007f4f667043c5 n/a (libglib-2.0.so.0 + 0x5c3c5)
                #56 0x00007f4f667065f7 n/a (libglib-2.0.so.0 + 0x5e5f7)
                #57 0x00007f4f66706d60 g_main_context_iteration
(libglib-2.0.so.0 + 0x5ed60)
                #58 0x00007f4f6873ae2d
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x33ae2d)
                #59 0x00007f4f686dc742
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x2dc742)
                #60 0x00007f4f695798d7 _ZN7QDialog4execEv (libQt5Widgets.so.5 +
0x3798d7)
                #61 0x00007f4f6b52a802 _ZN20StdCmdDlgPreferences9activatedEi
(libFreeCADGui.so + 0x72a802)
                #62 0x00007f4f6b4f7d92 _ZN3Gui7Command7_invokeEib
(libFreeCADGui.so + 0x6f7d92)
                #63 0x00007f4f6b4f81e6
_ZN3Gui7Command6invokeEiNS0_13TriggerSourceE (libFreeCADGui.so + 0x6f81e6)

                Stack trace of thread 963106:
                #0  0x00007f4f67ea49ee n/a (libc.so.6 + 0x9a9ee)
                #1  0x00007f4f67e99668 n/a (libc.so.6 + 0x8f668)
                #2  0x00007f4f67e99c9c n/a (libc.so.6 + 0x8fc9c)
                #3  0x00007f4f67e9c158 pthread_cond_wait (libc.so.6 + 0x92158)
                #4  0x00007f4f4d9afbdd n/a (libgallium-25.0.5-2.so + 0x5afbdd)
                #5  0x00007f4f4d97b22b n/a (libgallium-25.0.5-2.so + 0x57b22b)
                #6  0x00007f4f4d9afb0b n/a (libgallium-25.0.5-2.so + 0x5afb0b)
                #7  0x00007f4f67e9cb7b n/a (libc.so.6 + 0x92b7b)
                #8  0x00007f4f67f1a7b8 n/a (libc.so.6 + 0x1107b8)

                Stack trace of thread 963105:
                #0  0x00007f4f67ea49ee n/a (libc.so.6 + 0x9a9ee)
                #1  0x00007f4f67e99668 n/a (libc.so.6 + 0x8f668)
                #2  0x00007f4f67e996ad n/a (libc.so.6 + 0x8f6ad)
                #3  0x00007f4f67f0d9c6 __poll (libc.so.6 + 0x1039c6)
                #4  0x00007f4f622a88cc n/a (libQt5WaylandClient.so.5 + 0x7c8cc)
                #5  0x00007f4f684dec21 n/a (libQt5Core.so.5 + 0xdec21)
                #6  0x00007f4f67e9cb7b n/a (libc.so.6 + 0x92b7b)
                #7  0x00007f4f67f1a7b8 n/a (libc.so.6 + 0x1107b8)

                Stack trace of thread 963149:
                #0  0x00007f4f67ea49ee n/a (libc.so.6 + 0x9a9ee)
                #1  0x00007f4f67e99668 n/a (libc.so.6 + 0x8f668)
                #2  0x00007f4f67e99c9c n/a (libc.so.6 + 0x8fc9c)
                #3  0x00007f4f67e9c158 pthread_cond_wait (libc.so.6 + 0x92158)
                #4  0x00007f4f684e4cd7
_ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt5Core.so.5 + 0xe4cd7)
                #5  0x00007f4f695a82cc n/a (libQt5Widgets.so.5 + 0x3a82cc)
                #6  0x00007f4f684dec21 n/a (libQt5Core.so.5 + 0xdec21)
                #7  0x00007f4f67e9cb7b n/a (libc.so.6 + 0x92b7b)
                #8  0x00007f4f67f1a7b8 n/a (libc.so.6 + 0x1107b8)

                Stack trace of thread 963144:
                #0  0x00007f4f67ea49ee n/a (libc.so.6 + 0x9a9ee)
                #1  0x00007f4f67e99668 n/a (libc.so.6 + 0x8f668)
                #2  0x00007f4f67e99c9c n/a (libc.so.6 + 0x8fc9c)
                #3  0x00007f4f67e9c158 pthread_cond_wait (libc.so.6 + 0x92158)
                #4  0x00007f4f684e4cd7
_ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt5Core.so.5 + 0xe4cd7)
                #5  0x00007f4f695a82cc n/a (libQt5Widgets.so.5 + 0x3a82cc)
                #6  0x00007f4f684dec21 n/a (libQt5Core.so.5 + 0xdec21)
                #7  0x00007f4f67e9cb7b n/a (libc.so.6 + 0x92b7b)
                #8  0x00007f4f67f1a7b8 n/a (libc.so.6 + 0x1107b8)

                Stack trace of thread 963146:
                #0  0x00007f4f67ea49ee n/a (libc.so.6 + 0x9a9ee)
                #1  0x00007f4f67e99668 n/a (libc.so.6 + 0x8f668)
                #2  0x00007f4f67e99c9c n/a (libc.so.6 + 0x8fc9c)
                #3  0x00007f4f67e9c158 pthread_cond_wait (libc.so.6 + 0x92158)
                #4  0x00007f4f684e4cd7
_ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt5Core.so.5 + 0xe4cd7)
                #5  0x00007f4f695a82cc n/a (libQt5Widgets.so.5 + 0x3a82cc)
                #6  0x00007f4f684dec21 n/a (libQt5Core.so.5 + 0xdec21)
                #7  0x00007f4f67e9cb7b n/a (libc.so.6 + 0x92b7b)
                #8  0x00007f4f67f1a7b8 n/a (libc.so.6 + 0x1107b8)

                Stack trace of thread 963143:
                #0  0x00007f4f67ea49ee n/a (libc.so.6 + 0x9a9ee)
                #1  0x00007f4f67e99668 n/a (libc.so.6 + 0x8f668)
                #2  0x00007f4f67e99c9c n/a (libc.so.6 + 0x8fc9c)
                #3  0x00007f4f67e9c158 pthread_cond_wait (libc.so.6 + 0x92158)
                #4  0x00007f4f684e4cd7
_ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt5Core.so.5 + 0xe4cd7)
                #5  0x00007f4f695a82cc n/a (libQt5Widgets.so.5 + 0x3a82cc)
                #6  0x00007f4f684dec21 n/a (libQt5Core.so.5 + 0xdec21)
                #7  0x00007f4f67e9cb7b n/a (libc.so.6 + 0x92b7b)
                #8  0x00007f4f67f1a7b8 n/a (libc.so.6 + 0x1107b8)

                Stack trace of thread 963147:
                #0  0x00007f4f67ea49ee n/a (libc.so.6 + 0x9a9ee)
                #1  0x00007f4f67e99668 n/a (libc.so.6 + 0x8f668)
                #2  0x00007f4f67e99c9c n/a (libc.so.6 + 0x8fc9c)
                #3  0x00007f4f67e9c158 pthread_cond_wait (libc.so.6 + 0x92158)
                #4  0x00007f4f684e4cd7
_ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt5Core.so.5 + 0xe4cd7)
                #5  0x00007f4f695a82cc n/a (libQt5Widgets.so.5 + 0x3a82cc)
                #6  0x00007f4f684dec21 n/a (libQt5Core.so.5 + 0xdec21)
                #7  0x00007f4f67e9cb7b n/a (libc.so.6 + 0x92b7b)
                #8  0x00007f4f67f1a7b8 n/a (libc.so.6 + 0x1107b8)

                Stack trace of thread 963148:
                #0  0x00007f4f67ea49ee n/a (libc.so.6 + 0x9a9ee)
                #1  0x00007f4f67e99668 n/a (libc.so.6 + 0x8f668)
                #2  0x00007f4f67e99c9c n/a (libc.so.6 + 0x8fc9c)
                #3  0x00007f4f67e9c158 pthread_cond_wait (libc.so.6 + 0x92158)
                #4  0x00007f4f684e4cd7
_ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt5Core.so.5 + 0xe4cd7)
                #5  0x00007f4f695a82cc n/a (libQt5Widgets.so.5 + 0x3a82cc)
                #6  0x00007f4f684dec21 n/a (libQt5Core.so.5 + 0xdec21)
                #7  0x00007f4f67e9cb7b n/a (libc.so.6 + 0x92b7b)
                #8  0x00007f4f67f1a7b8 n/a (libc.so.6 + 0x1107b8)

                Stack trace of thread 963103:
                #0  0x00007f4f67ea49ee n/a (libc.so.6 + 0x9a9ee)
                #1  0x00007f4f67e99668 n/a (libc.so.6 + 0x8f668)
                #2  0x00007f4f67e996ad n/a (libc.so.6 + 0x8f6ad)
                #3  0x00007f4f67f0de6e ppoll (libc.so.6 + 0x103e6e)
                #4  0x00007f4f667066cc n/a (libglib-2.0.so.0 + 0x5e6cc)
                #5  0x00007f4f66706d60 g_main_context_iteration
(libglib-2.0.so.0 + 0x5ed60)
                #6  0x00007f4f6873ae2d
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5 + 0x33ae2d)
                #7  0x00007f4f686dc742
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 +
0x2dc742)
                #8  0x00007f4f684dd990 _ZN7QThread4execEv (libQt5Core.so.5 +
0xdd990)
                #9  0x00007f4f621627cb n/a (libQt5DBus.so.5 + 0x177cb)
                #10 0x00007f4f684dec21 n/a (libQt5Core.so.5 + 0xdec21)
                #11 0x00007f4f67e9cb7b n/a (libc.so.6 + 0x92b7b)
                #12 0x00007f4f67f1a7b8 n/a (libc.so.6 + 0x1107b8)

                Stack trace of thread 963151:
                #0  0x00007f4f67ea49ee n/a (libc.so.6 + 0x9a9ee)
                #1  0x00007f4f67e99668 n/a (libc.so.6 + 0x8f668)
                #2  0x00007f4f67e99c9c n/a (libc.so.6 + 0x8fc9c)
                #3  0x00007f4f67e9c158 pthread_cond_wait (libc.so.6 + 0x92158)
                #4  0x00007f4f684e4cd7
_ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt5Core.so.5 + 0xe4cd7)
                #5  0x00007f4f695a82cc n/a (libQt5Widgets.so.5 + 0x3a82cc)
                #6  0x00007f4f684dec21 n/a (libQt5Core.so.5 + 0xdec21)
                #7  0x00007f4f67e9cb7b n/a (libc.so.6 + 0x92b7b)
                #8  0x00007f4f67f1a7b8 n/a (libc.so.6 + 0x1107b8)

                Stack trace of thread 963150:
                #0  0x00007f4f67ea49ee n/a (libc.so.6 + 0x9a9ee)
                #1  0x00007f4f67e99668 n/a (libc.so.6 + 0x8f668)
                #2  0x00007f4f67e99c9c n/a (libc.so.6 + 0x8fc9c)
                #3  0x00007f4f67e9c158 pthread_cond_wait (libc.so.6 + 0x92158)
                #4  0x00007f4f684e4cd7
_ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt5Core.so.5 + 0xe4cd7)
                #5  0x00007f4f695a82cc n/a (libQt5Widgets.so.5 + 0x3a82cc)
                #6  0x00007f4f684dec21 n/a (libQt5Core.so.5 + 0xdec21)
                #7  0x00007f4f67e9cb7b n/a (libc.so.6 + 0x92b7b)
                #8  0x00007f4f67f1a7b8 n/a (libc.so.6 + 0x1107b8)

                Stack trace of thread 963104:
                #0  0x00007f4f67ea49ee n/a (libc.so.6 + 0x9a9ee)
                #1  0x00007f4f67e99668 n/a (libc.so.6 + 0x8f668)
                #2  0x00007f4f67e99c9c n/a (libc.so.6 + 0x8fc9c)
                #3  0x00007f4f67e9c158 pthread_cond_wait (libc.so.6 + 0x92158)
                #4  0x00007f4f684e4cd7
_ZN14QWaitCondition4waitEP6QMutex14QDeadlineTimer (libQt5Core.so.5 + 0xe4cd7)
                #5  0x00007f4f622a887f n/a (libQt5WaylandClient.so.5 + 0x7c87f)
                #6  0x00007f4f684dec21 n/a (libQt5Core.so.5 + 0xdec21)
                #7  0x00007f4f67e9cb7b n/a (libc.so.6 + 0x92b7b)
                #8  0x00007f4f67f1a7b8 n/a (libc.so.6 + 0x1107b8)
                ELF object binary architecture: AMD x86-64

<end Crashed Process viewer report>

Mesa library version per synaptic is 25.0.5-2


I added "COIN_GL_NO_CURRENT_CONTEXT_CHECK=1" to the environment line in the KDE
menu entry for FreeCad and it now appears to operate properly



-- System Information:
Debian Release: 13.0
  APT prefers testing-security
  APT policy: (500, 'testing-security'), (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 6.12.21-amd64 (SMP w/12 CPU threads; PREEMPT)
Kernel taint flags: TAINT_WARN
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages freecad depends on:
ii  freecad-python3  1.0.0+dfsg-6
ii  python3          3.13.3-1

Versions of packages freecad recommends:
pn  calculix-ccx        <none>
ii  graphviz            2.42.4-3
ii  python3-opencamlib  2023.01.11-5+b3

Versions of packages freecad suggests:
pn  povray  <none>

-- no debconf information



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