Bug 472653

Summary:	Dolphin crashes on startup
Product:	[Applications] dolphin	Reporter:	Giovanni <giovannicorriga>
Component:	general	Assignee:	Dolphin Bug Assignee <dolphin-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	crash	CC:	akselmo, dolphin-bugs-null, giovannicorriga, kdedev, nicolas.fella
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	23.04.3
Target Milestone:	---
Platform:	Fedora RPMs
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	New crash information added by DrKonqi

Description Giovanni 2023-07-26 09:49:09 UTC

Application: dolphin (23.04.3)

Qt Version: 5.15.10
Frameworks Version: 5.108.0
Operating System: Linux 6.4.4-200.fc38.x86_64 x86_64
Windowing System: X11
Distribution: "Fedora release 38 (Thirty Eight)"
DrKonqi: 5.27.6 [KCrashBackend]

-- Information about the crash:
Dolphin file manager crashes on startup. If launched from the console the problem would start from a QSocketNotifier connection. This reporting is done in a KDE Plasma 5 session under X-Windows. The same bug also occurs under Wayland.

The crash can be reproduced every time.

-- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault

[KCrash Handler]
#4  0x0000555ce34a6f3b in DolphinViewContainer::setActive(bool) ()
#5  0x0000555ce3505b5c in DolphinTabPage::restoreState(QByteArray const&) [clone .isra.0] ()
#6  0x0000555ce34921cd in DolphinMainWindow::readProperties(KConfigGroup const&) ()
#7  0x00007f50e8bca618 in KMainWindow::readPropertiesInternal(KConfig*, int) () from /lib64/libKF5XmlGui.so.5
#8  0x00007f50e8bca67a in KMainWindow::restore(int, bool) () from /lib64/libKF5XmlGui.so.5
#9  0x0000555ce34905b9 in main ()
[Inferior 1 (process 124425) detached]

Reported using DrKonqi

Comment 1 Akseli Lahtinen 2023-12-12 09:01:01 UTC

Have you encountered this bug anymore? Does it crash if you open some specific folder or any folder?

If you can, please install Dolphin, KIO and KIO-extras debug symbols and send the backtrace. Thank you!

Comment 2 Giovanni 2023-12-13 15:05:43 UTC

Created attachment 164139 [details]
New crash information added by DrKonqi

dolphin (23.08.3) using Qt 5.15.11

Dolphin is crashed in a X-Window session, same result using Wayland. Under Wayland the bug's report tool don't recognize the problem.

-- Backtrace (Reduced):
#4  0x0000563713421d1b in DolphinViewContainer::setActive(bool) ()
#6  0x000056371340c21d in DolphinMainWindow::readProperties(KConfigGroup const&) ()
#7  0x00007f92f22ce8e8 in KMainWindow::readPropertiesInternal(KConfig*, int) () at /lib64/libKF5XmlGui.so.5
#8  0x00007f92f22ce94a in KMainWindow::restore(int, bool) () at /lib64/libKF5XmlGui.so.5
#9  0x000056371340a5e9 in main ()

Comment 3 Giovanni 2023-12-13 16:45:22 UTC

I add further information to this case: if I launch Dolphin from Konsole under Wayland I get this message:
giovanni@localhost:~$ dolphin
KCrash: Application 'dolphin' crashing...
The Wayland connection experienced a fatal error: Incorrect file descriptor
giovanni@localhost:~$

Comment 4 Giovanni 2023-12-20 12:01:59 UTC

Today I updated with the latest news and once again Dolphin dies on startup. From Konsole I always get this message using Plasma under Wayland:

giovanni@localhost:~$ dolphin
KCrash: Application 'dolphin' crashing...
The Wayland connection experienced a fatal error: Descrittore di file errato
giovanni@localhost:~$ 

Where is the bug?

Comment 5 Giovanni 2023-12-20 14:46:12 UTC

I made a simple test renaming the configuration file dolphinrc in ./config and relaunched it recreate the configuration file crashing again but if launched from console the output is:

giovanni@localhost:~$ dolphin
KCrash: Application 'dolphin' crashing...
QSocketNotifier: Invalid socket 6 and type 'Read', disabling...
The Wayland connection experienced a fatal error: Descrittore di file errato
giovanni@localhost:~$

Comment 6 Akseli Lahtinen 2023-12-21 13:26:06 UTC

Hi, thanks for the help. Here's something you can do to track the issue:

1. Install following on your system: sudo dnf debuginfo-install dolphin kf5-kio kio-extras
These files will help us track down the bug more precisely. Current backtrace information does not have enough information, unfortunately.

2. Try running the application again and see if the crash window appears. If not, run following in terminal: 

coredumpctl debug -A "-ex bt -ex quit" |& tee backtrace.txt

This should run through the crash backtrace and print it into a text file. 

3. Open the backtrace.txt file (same folder where you run the command) and copy it here. It should show you the crash backtrace and other information.


Also, it seems theres something going wrong when the view is activated. Do you have any specific plugins enabled? 

Does running following command in terminal work: dolphin $HOME

Comment 7 Giovanni 2023-12-22 09:54:27 UTC

As suggested by the last communication, I carried out what was indicated in step 1, i.e. the information for debugging. I ran the command indicated in step 2 and the result is the following:

PID: 3030 (pcmanfm-qt)
UID: 1000 (giovanni)
GID: 1000 (giovanni)
Signal: 11 (SEGV)
Timestamp: Fri 2023-12-22 10:17:49 CET (13min ago)
Command Line: /usr/bin/pcmanfm-qt
Executable: /usr/bin/pcmanfm-qt
Control Group: /user.slice/user-1000.slice/user@1000.service/app.slice/app-pcmanfm\x2dqt-ada6a8fdca404201b8d14fb76f19fea7.scope
Unit: user@1000.service
User Unit: app-pcmanfm\x2dqt-ada6a8fdca404201b8d14fb76f19fea7.scope
Slice: user-1000.slice
Owner UID: 1000 (giovanni)
Boot ID: aa971d44571d4222b246a9a25bb716a0
Machine ID: ecb11a5bb3244902843653c79a7be386
Hostname: localhost.localdomain
Storage: /var/lib/systemd/coredump/core.pcmanfm-qt.1000.aa971d44571d4222b246a9a25bb716a0.3030.1703236669000000.zst (present)
Size on Disk: 4.1M
Package: pcmanfm-qt/1.3.0-1.fc39
build-id: 75d90a2d94c326324dc4cc385604a01f0af6661d
Message: Process 3030 (pcmanfm-qt) of user 1000 dumped core.

Module /usr/lib64/dri/nouveau_dri.so (deleted) from rpm mesa-23.3.1-3.fc39.x86_64
Module /usr/lib64/libglapi.so.0.0.0 (deleted) from rpm mesa-23.3.1-3.fc39.x86_64
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Module /usr/lib64/libssh.so.4.9.5 (deleted) from rpm libssh-0.10.5-2.fc39.x86_64
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Module /usr/lib64/libcap.so.2.48 (deleted) from rpm libcap-2.48-8.fc39.x86_64
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Module libqwbmp.so from rpm qt5-qtimageformats-5.15.11-1.fc39.x86_64
Module libjbig.so.2.1 from rpm jbigkit-2.1-26.fc39.x86_64
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Module libsharpyuv.so.0 from rpm libwebp-1.3.2-2.fc39.x86_64
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Module libIlmThread-3_1.so.30 from rpm openexr-3.1.10-2.fc39.x86_64
Module libIex-3_1.so.30 from rpm openexr-3.1.10-2.fc39.x86_64
Module libImath-3_1.so.29 from rpm imath-3.1.9-3.fc39.x86_64
Module libOpenEXR-3_1.so.30 from rpm openexr-3.1.10-2.fc39.x86_64
Module kimg_exr.so from rpm kf5-kimageformats-5.111.0-1.fc39.x86_64
Module kimg_eps.so from rpm kf5-kimageformats-5.111.0-1.fc39.x86_64
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Module libjxl.so.0.8 from rpm jpegxl-0.8.2-3.fc39.x86_64
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Module kimg_ani.so from rpm kf5-kimageformats-5.111.0-1.fc39.x86_64
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Module libevent-2.1.so.7 from rpm libevent-2.1.12-9.fc39.x86_64
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Module libidn2.so.0 from rpm libidn2-2.3.4-3.fc39.x86_64
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Module libkrb5.so.3 from rpm krb5-1.21.2-2.fc39.x86_64
Module libusbmuxd-2.0.so.6 from rpm libusbmuxd-2.0.2^20230620git8d30a55-3.fc39.x86_64
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Module libdbusmenu-qt5.so.2 from rpm dbusmenu-qt-0.9.3-0.32.20160218.fc39.x86_64
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Module libQt5TextToSpeech.so.5 from rpm qt5-qtspeech-5.15.11-1.fc39.x86_64
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Module libQt5Xml.so.5 from rpm qt5-qtbase-5.15.11-7.fc39.x86_64
Module libKF5GuiAddons.so.5 from rpm kf5-kguiaddons-5.111.0-1.fc39.x86_64
Module libQt5Network.so.5 from rpm qt5-qtbase-5.15.11-7.fc39.x86_64
Module libKF5ItemViews.so.5 from rpm kf5-kitemviews-5.111.0-1.fc39.x86_64
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Module libKF5Solid.so.5 from rpm kf5-solid-5.111.0-1.fc39.x86_64
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Module libKF5Completion.so.5 from rpm kf5-kcompletion-5.111.0-1.fc39.x86_64
Module libKF5JobWidgets.so.5 from rpm kf5-kjobwidgets-5.111.0-1.fc39.x86_64
Module libKF5KIOCore.so.5 from rpm kf5-kio-5.111.0-1.fc39.x86_64
Module libQt5Quick.so.5 from rpm qt5-qtdeclarative-5.15.11-2.fc39.x86_64
Module libQt5QuickControls2.so.5 from rpm qt5-qtquickcontrols2-5.15.11-1.fc39.x86_64
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Module libKF5KIOWidgets.so.5 from rpm kf5-kio-5.111.0-1.fc39.x86_64
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Module libcomposeplatforminputcontextplugin.so from rpm qt5-qtbase-5.15.11-7.fc39.x86_64
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Module libwayland-client.so.0 from rpm wayland-1.22.0-2.fc39.x86_64
Module libwayland-cursor.so.0 from rpm wayland-1.22.0-2.fc39.x86_64
Module libQt5WaylandClient.so.5 from rpm qt5-qtwayland-5.15.11-1.fc39.x86_64
Module libqwayland-generic.so from rpm qt5-qtwayland-5.15.11-1.fc39.x86_64
Module libbrotlicommon.so.1 from rpm brotli-1.1.0-1.fc39.x86_64
Module libbrotlidec.so.1 from rpm brotli-1.1.0-1.fc39.x86_64
Module libbz2.so.1 from rpm bzip2-1.0.8-16.fc39.x86_64
Module libblkid.so.1 from rpm util-linux-2.39.2-1.fc39.x86_64
Module libicudata.so.73 from rpm icu-73.2-2.fc39.x86_64
Module liblzma.so.5 from rpm xz-5.4.4-1.fc39.x86_64
Module liblz4.so.1 from rpm lz4-1.9.4-4.fc39.x86_64
Module libgraphite2.so.3 from rpm graphite2-1.3.14-12.fc39.x86_64
Module libfreetype.so.6 from rpm freetype-2.13.1-2.fc39.x86_64
Module libGLdispatch.so.0 from rpm libglvnd-1.7.0-1.fc39.x86_64
Module libXext.so.6 from rpm libXext-1.3.5-3.fc39.x86_64
Module libX11.so.6 from rpm libX11-1.8.7-1.fc39.x86_64
Module libGLX.so.0 from rpm libglvnd-1.7.0-1.fc39.x86_64
Module libXau.so.6 from rpm libXau-1.0.11-3.fc39.x86_64
Module libffi.so.8 from rpm libffi-3.4.4-4.fc39.x86_64
Module libselinux.so.1 from rpm libselinux-3.5-5.fc39.x86_64
Module libmount.so.1 from rpm util-linux-2.39.2-1.fc39.x86_64
Module libgmodule-2.0.so.0 from rpm glib2-2.78.3-1.fc39.x86_64
Module libpcre2-8.so.0 from rpm pcre2-10.42-1.fc39.2.x86_64
Module libzstd.so.1 from rpm zstd-1.5.5-4.fc39.x86_64
Module libpcre2-16.so.0 from rpm pcre2-10.42-1.fc39.2.x86_64
Module libicuuc.so.73 from rpm icu-73.2-2.fc39.x86_64
Module libicui18n.so.73 from rpm icu-73.2-2.fc39.x86_64
Module libdouble-conversion.so.3 from rpm double-conversion-3.1.5-9.fc39.x86_64
Module libsystemd.so.0 from rpm systemd-254.7-1.fc39.x86_64
Module libharfbuzz.so.0 from rpm harfbuzz-8.2.1-2.fc39.x86_64
Module libz.so.1 from rpm zlib-1.2.13-4.fc39.x86_64
Module libpng16.so.16 from rpm libpng-1.6.37-15.fc39.x86_64
Module libGL.so.1 from rpm libglvnd-1.7.0-1.fc39.x86_64
Module libexif.so.12 from rpm libexif-0.6.24-5.fc39.x86_64
Module libmenu-cache.so.3 from rpm menu-cache-1.1.0^20230724git4a82095c-1.fc39.x86_64
Module libdbus-1.so.3 from rpm dbus-1.14.10-1.fc39.x86_64
Module libxcb.so.1 from rpm libxcb-1.13.1-12.fc39.x86_64
Module libgobject-2.0.so.0 from rpm glib2-2.78.3-1.fc39.x86_64
Module libgio-2.0.so.0 from rpm glib2-2.78.3-1.fc39.x86_64
Module libglib-2.0.so.0 from rpm glib2-2.78.3-1.fc39.x86_64
Module libQt5Core.so.5 from rpm qt5-qtbase-5.15.11-7.fc39.x86_64
Module libQt5Gui.so.5 from rpm qt5-qtbase-5.15.11-7.fc39.x86_64
Module libQt5Widgets.so.5 from rpm qt5-qtbase-5.15.11-7.fc39.x86_64
Module libQt5X11Extras.so.5 from rpm qt5-qtx11extras-5.15.11-1.fc39.x86_64
Module libfm-qt.so.13 from rpm libfm-qt-1.3.0-1.fc39.x86_64
Module libQt5DBus.so.5 from rpm qt5-qtbase-5.15.11-7.fc39.x86_64
Module pcmanfm-qt from rpm pcmanfm-qt-1.3.0-1.fc39.x86_64
Stack trace of thread 132941:
#0 0x00007f8fd0ee68f4 _ZN14QObjectPrivate14ConnectionData24cleanOrphanedConnectionsEP7QObjectNS0_10LockPolicyE (libQt5Core.so.5 + 0x2e68f4)
#1 0x00007f8fd0ee8a20 _Z10doActivateILb0EEvP7QObjectiPPv (libQt5Core.so.5 + 0x2e8a20)
#2 0x00007f8fd0cf5bbd _ZN14QThreadPrivate5startEPv (libQt5Core.so.5 + 0xf5bbd)
#3 0x00007f8fd04ac897 start_thread (libc.so.6 + 0x8e897)
#4 0x00007f8fd05336fc __clone3 (libc.so.6 + 0x1156fc)

Stack trace of thread 3038:
#0 0x00007f8fd0525bcd __poll (libc.so.6 + 0x107bcd)
#1 0x00007f8fd196ceb4 g_main_context_iterate_unlocked.isra.0 (libglib-2.0.so.0 + 0xb6eb4)
#2 0x00007f8fd190fad3 g_main_context_iteration (libglib-2.0.so.0 + 0x59ad3)
#3 0x00007f8fd0f06ad9 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x306ad9)
#4 0x00007f8fd0eb2f5b _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2b2f5b)
#5 0x00007f8fd0cf47b0 _ZN7QThread4execEv (libQt5Core.so.5 + 0xf47b0)
#6 0x00007f8fd23c2dab _ZN22QDBusConnectionManager3runEv (libQt5DBus.so.5 + 0x1bdab)
#7 0x00007f8fd0cf5bbd _ZN14QThreadPrivate5startEPv (libQt5Core.so.5 + 0xf5bbd)
#8 0x00007f8fd04ac897 start_thread (libc.so.6 + 0x8e897)
#9 0x00007f8fd05336fc __clone3 (libc.so.6 + 0x1156fc)

Stack trace of thread 3039:
#0 0x00007f8fd0525bcd __poll (libc.so.6 + 0x107bcd)
#1 0x00007f8fc01270ac _ZN15QtWaylandClient11EventThread3runEv (libQt5WaylandClient.so.5 + 0x800ac)
#2 0x00007f8fd0cf5bbd _ZN14QThreadPrivate5startEPv (libQt5Core.so.5 + 0xf5bbd)
#3 0x00007f8fd04ac897 start_thread (libc.so.6 + 0x8e897)
#4 0x00007f8fd05336fc __clone3 (libc.so.6 + 0x1156fc)

Stack trace of thread 3044:
#0 0x00007f8fd0525bcd __poll (libc.so.6 + 0x107bcd)
#1 0x00007f8fd196ceb4 g_main_context_iterate_unlocked.isra.0 (libglib-2.0.so.0 + 0xb6eb4)
#2 0x00007f8fd190fad3 g_main_context_iteration (libglib-2.0.so.0 + 0x59ad3)
#3 0x00007f8fd190fb29 glib_worker_main (libglib-2.0.so.0 + 0x59b29)
#4 0x00007f8fd1942523 g_thread_proxy (libglib-2.0.so.0 + 0x8c523)
#5 0x00007f8fd04ac897 start_thread (libc.so.6 + 0x8e897)
#6 0x00007f8fd05336fc __clone3 (libc.so.6 + 0x1156fc)

Stack trace of thread 3041:
#0 0x00007f8fd04a9169 __futex_abstimed_wait_common (libc.so.6 + 0x8b169)
#1 0x00007f8fd04abb09 pthread_cond_wait@@GLIBC_2.3.2 (libc.so.6 + 0x8db09)
#2 0x00007f8fb536e55d n/a (/usr/lib64/dri/nouveau_dri.so (deleted) + 0x16e55d)
#3 0x00007f8fb534d3cb n/a (/usr/lib64/dri/nouveau_dri.so (deleted) + 0x14d3cb)
#4 0x00007f8fb536e48c n/a (/usr/lib64/dri/nouveau_dri.so (deleted) + 0x16e48c)
#5 0x00007f8fd04ac897 start_thread (libc.so.6 + 0x8e897)
#6 0x00007f8fd05336fc __clone3 (libc.so.6 + 0x1156fc)

Stack trace of thread 3045:
#0 0x00007f8fd0525bcd __poll (libc.so.6 + 0x107bcd)
#1 0x00007f8fd196ceb4 g_main_context_iterate_unlocked.isra.0 (libglib-2.0.so.0 + 0xb6eb4)
#2 0x00007f8fd1913447 g_main_loop_run (libglib-2.0.so.0 + 0x5d447)
#3 0x00007f8fd0b46592 gdbus_shared_thread_func.lto_priv.0 (libgio-2.0.so.0 + 0x11c592)
#4 0x00007f8fd1942523 g_thread_proxy (libglib-2.0.so.0 + 0x8c523)
#5 0x00007f8fd04ac897 start_thread (libc.so.6 + 0x8e897)
#6 0x00007f8fd05336fc __clone3 (libc.so.6 + 0x1156fc)

Stack trace of thread 3030:
#0 0x00007f8fd0525bcd __poll (libc.so.6 + 0x107bcd)
#1 0x00007f8fd196ceb4 g_main_context_iterate_unlocked.isra.0 (libglib-2.0.so.0 + 0xb6eb4)
#2 0x00007f8fd190fad3 g_main_context_iteration (libglib-2.0.so.0 + 0x59ad3)
#3 0x00007f8fd0f06ad9 _ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE (libQt5Core.so.5 + 0x306ad9)
#4 0x00007f8fd0eb2f5b _ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5 + 0x2b2f5b)
#5 0x00007f8fd0ebb1eb _ZN16QCoreApplication4execEv (libQt5Core.so.5 + 0x2bb1eb)
#6 0x000055ec5d472a1a main (pcmanfm-qt + 0x2da1a)
#7 0x00007f8fd044614a __libc_start_call_main (libc.so.6 + 0x2814a)
#8 0x00007f8fd044620b __libc_start_main@@GLIBC_2.34 (libc.so.6 + 0x2820b)
#9 0x000055ec5d473275 _start (pcmanfm-qt + 0x2e275)

Stack trace of thread 3043:
#0 0x00007f8fd05315ed syscall (libc.so.6 + 0x1135ed)
#1 0x00007f8fd1969b2d g_cond_wait (libglib-2.0.so.0 + 0xb3b2d)
#2 0x00007f8fd18dd22b g_async_queue_pop_intern_unlocked (libglib-2.0.so.0 + 0x2722b)
#3 0x00007f8fd1946393 g_thread_pool_spawn_thread (libglib-2.0.so.0 + 0x90393)
#4 0x00007f8fd1942523 g_thread_proxy (libglib-2.0.so.0 + 0x8c523)
#5 0x00007f8fd04ac897 start_thread (libc.so.6 + 0x8e897)
#6 0x00007f8fd05336fc __clone3 (libc.so.6 + 0x1156fc)

Stack trace of thread 3040:
#0 0x00007f8fd0525bcd __poll (libc.so.6 + 0x107bcd)
#1 0x00007f8fc01270ac _ZN15QtWaylandClient11EventThread3runEv (libQt5WaylandClient.so.5 + 0x800ac)
#2 0x00007f8fd0cf5bbd _ZN14QThreadPrivate5startEPv (libQt5Core.so.5 + 0xf5bbd)
#3 0x00007f8fd04ac897 start_thread (libc.so.6 + 0x8e897)
#4 0x00007f8fd05336fc __clone3 (libc.so.6 + 0x1156fc)
ELF object binary architecture: AMD x86-64

GNU gdb (Fedora Linux) 14.1-1.fc39
Copyright (C) 2023 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
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For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from /usr/bin/pcmanfm-qt...

This GDB supports auto-downloading debuginfo from the following URLs:
<https://debuginfod.fedoraproject.org/>
[?2004hEnable debuginfod for this session? (y or [n]) y
[?2004l
Debuginfod has been enabled.
To make this setting permanent, add 'set debuginfod enabled on' to .gdbinit.
Reading symbols from /home/giovanni/.cache/debuginfod_client/75d90a2d94c326324dc4cc385604a01f0af6661d/debuginfo...

warning: Can't open file /memfd:wayland-shm (deleted) during file-backed mapping note processing

warning: Can't open file /memfd:wayland-cursor (deleted) during file-backed mapping note processing
[New LWP 132941]
[New LWP 3038]
[New LWP 3039]
[New LWP 3044]
[New LWP 3041]
[New LWP 3045]
[New LWP 3030]
[New LWP 3043]
[New LWP 3040]
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[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/bin/pcmanfm-qt'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 std::__atomic_base<QObjectPrivate::Connection*>::load (
__m=std::memory_order_relaxed, this=0x20)
at /usr/include/c++/13/bits/atomic_base.h:835

warning: Source file is more recent than executable.
835 __glibcxx_assert(__b != memory_order_acq_rel);
[Current thread is 1 (Thread 0x7f8f9b7fe6c0 (LWP 132941))]
#0 std::__atomic_base<QObjectPrivate::Connection*>::load
(__m=std::memory_order_relaxed, this=0x20)
at /usr/include/c++/13/bits/atomic_base.h:835
#1 std::atomic<QObjectPrivate::Connection*>::load
(__m=std::memory_order_relaxed, this=0x20)
at /usr/include/c++/13/atomic:577
#2 QAtomicOps<QObjectPrivate::Connection*>::loadRelaxed<QObjectPrivate::Connection*> (_q_value=<error reading variable: Cannot access memory at address 0x20>)
at ../../include/QtCore/../../src/corelib/thread/qatomic_cxx11.h:239
#3 QBasicAtomicPointer<QObjectPrivate::Connection>::loadRelaxed (this=0x20)
at ../../include/QtCore/../../src/corelib/thread/qbasicatomic.h:248
#4 QObjectPrivate::ConnectionData::cleanOrphanedConnections
(this=0x0, sender=0x55ec5e1c38f0, lockPolicy=QObjectPrivate::ConnectionData::NeedToLock) at kernel/qobject_p.h:292
#5 0x00007f8fd0ee8a20 in doActivate<false>
(sender=0x55ec5e1c38f0, signal_index=4, argv=0x7f8f9b7fdbf0)
at kernel/qobject.cpp:3967
#6 0x00007f8fd0cf5bbd in operator() (__closure=<optimized out>)
at thread/qthread_unix.cpp:350
#7 (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=<optimized out>) at thread/qthread_unix.cpp:287
#8 QThreadPrivate::start (arg=0x7f8f94000e90) at thread/qthread_unix.cpp:310
#9 0x00007f8fd04ac897 in start_thread (arg=<optimized out>)
at pthread_create.c:444
#10 0x00007f8fd05336fc in clone3 ()
at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

The backtrace is full of information regarding other programs, some of which I am programming myself, while as regards point 3 the result is:

giovanni@localhost:~$ dolphin $HOME
KCrash: Application 'dolphin' crashing...
The Wayland connection experienced a fatal error: Descrittore di file errato
giovanni@localhost:~$

I forgot: Dolphin is installed and run without plugins.

Comment 8 Akseli Lahtinen 2023-12-22 10:40:51 UTC

Thanks. That backtrace however seems to be for pcmanfm-qt?

Comment 9 Akseli Lahtinen 2023-12-22 10:45:00 UTC

Ah im so sorry, I forgot part of the command!!

It should be:

coredumpctl debug dolphin -A "-ex bt -ex quit" |& tee backtrace.txt


Again I'm sorry that I'm asking you to do this, but I have zero starters how to begin solving this issue without it.

Comment 10 Giovanni 2023-12-22 11:24:01 UTC

With the command:

coredumpctl debug dolphin -A "-ex bt -ex quit" |& tee backtrace.txt

The output from console and from backtrace.txt is:

No match found.

Where is the bug?

Comment 11 Giovanni 2023-12-22 11:55:37 UTC

I have executed dolphin from KDbg and the last line with error is in dolphinviewcontainer.cpp at line 218, like as reported from DrKonqui in my first report. Under the dock window Locals is reported "Cannot access memory at address 0x0"

Comment 12 Giovanni 2023-12-22 12:10:55 UTC

I think I've figured out where the bug is... It all starts in DolphinTabPage::restoreState(QByteArray & const). The function checks whether the configuration file contains the opening of the first child window in the tab which must necessarily always be present and active, otherwise what file manager would it be? The variable is necessarily true but when you start checking whether the second one is present the assumption is that it is present, not that it is present! An else condition is missing!

Comment 13 Giovanni 2023-12-22 12:23:15 UTC

If we see the source code of DolphinTabPage.cpp at lines 317-323 we have:

    stream >> m_primaryViewActive;
    if (m_primaryViewActive) {
        m_primaryViewContainer->setActive(true);
    } else {
        Q_ASSERT(m_splitViewEnabled);
        m_secondaryViewContainer->setActive(true);
    }

Where is the bug? Q_ASSERT(m_splitViewEnabled). Q_ASSERT check if the variable is always true, not false...

Comment 14 Giovanni 2023-12-22 21:35:21 UTC

For a test i have removed and installed again Dolphin, removing in ./config the file dolphinrc after the deinstallation. The configuration file is recreated, Dolphin crash...

Comment 15 Bug Janitor Service 2024-01-06 03:46:11 UTC

Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!

Comment 16 Giovanni 2024-01-06 09:54:09 UTC

As per your last email received, I inform you that I will change the status of this bug reported by me from NEEDINFO to REPORTED. I also proceeded to perform a further test by testing Dolphin in version 23.08.1-1, bringing it back from the current version 23.08.4-1 and again the application died on startup. Executed from the console under Wayland it reported the canonical message:

giovanni@localhost:~$ dolphin
KCrash: Application 'dolphin' crashing...
The Wayland connection experienced a fatal error: Incorrect file descriptor

Comment 17 Akseli Lahtinen 2024-01-08 08:41:17 UTC

Thanks, the bot was being a bit too excited :) i am now back from holidays so i have time to look into this.

Comment 18 Akseli Lahtinen 2024-01-08 08:54:23 UTC

Okay, there is another folder that could be possibly renamed to see if it fixes this issue:

1. Go to ~/.local/share/ 
2. Find folder named dolphin
3. Rename it to backup_dolphin
4. Try launching dolphin again

Comment 19 Giovanni 2024-01-08 13:36:17 UTC

I received your latest email and the report is bleak: Dolphin didn't start! I add further information: I have a laptop where I have installed Mageia 9. Dolphin, in version 23.04.1-1, works there. I did a little experiment by making Dolphin have two views in the same window, I closed it and then copied the dolphinrc file to my USB stick to replace it with my version on the desktop where Fedora 39 is by renaming the original file. Nothing to do: the problem is not the presence or absence of a split view as I had previously hypothesized. However one thing is clear: Dolphin in version 23.04.1-1 works perfectly, it is in subsequent versions that the bug manifests itself and the bug is somehow related to DBus but not to Wayland or X-Window, it appears in both platforms , it is a connection error of some kind that is related to the functions that manage the space of the central widget of the window.

Comment 20 Akseli Lahtinen 2024-01-08 14:35:48 UTC

Okay, this is super weird.

Let's try to get backtrace again, just in case something updated.

In terminal, do following:
1. run "gdb dolphin"
2. in gdb, type "r" and press enter
3. if prompted, press "c"
4. when gdb stops and shows a crash, type "bt" and press enter
5. again press "c" if prompted
6. copy all the lines that the command prints
7. you can now type "q" and press enter to quit

Comment 21 Giovanni 2024-01-09 08:43:56 UTC

I received your latest email and ran the recommended commands. This was done without loading the debugging symbols. Here is the result:

giovanni@localhost:~$ gdb dolphin
GNU gdb (Fedora Linux) 14.1-1.fc39
Copyright (C) 2023 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from dolphin...
Reading symbols from /usr/lib/debug/usr/bin/dolphin-23.08.4-1.fc39.x86_64.debug...
(gdb) r
Starting program: /usr/bin/dolphin 

This GDB supports auto-downloading debuginfo from the following URLs:
  <https://debuginfod.fedoraproject.org/>
Enable debuginfod for this session? (y or [n]) n
Debuginfod has been disabled.
To make this setting permanent, add 'set debuginfod enabled off' to .gdbinit.
Missing separate debuginfo for /lib64/libdolphinprivate.so.5.
The debuginfo package for this file is probably broken.
Missing separate debuginfo for /lib64/libKF5KIOFileWidgets.so.5.
The debuginfo package for this file is probably broken.
Missing separate debuginfo for /lib64/libKF5KIOWidgets.so.5.
The debuginfo package for this file is probably broken.
Missing separate debuginfo for /lib64/libKF5KIOGui.so.5.
The debuginfo package for this file is probably broken.
Missing separate debuginfo for /lib64/libKF5KIOCore.so.5.
The debuginfo package for this file is probably broken.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Missing separate debuginfo for /lib64/libdolphinvcs.so.5.
The debuginfo package for this file is probably broken.
[New Thread 0x7fffe27ff6c0 (LWP 11747)]
[New Thread 0x7fffe1e4b6c0 (LWP 11748)]
[New Thread 0x7fffe164a6c0 (LWP 11749)]
[New Thread 0x7fffe0b306c0 (LWP 11751)]
[New Thread 0x7fffc97ff6c0 (LWP 11758)]
[New Thread 0x7fffc8f686c0 (LWP 11767)]

Thread 1 "dolphin" received signal SIGSEGV, Segmentation fault.
0x00005555555bed1b in DolphinViewContainer::setActive (this=0x0, active=true)
    at /usr/src/debug/dolphin-23.08.4-1.fc39.x86_64/src/dolphinviewcontainer.cpp:218
218         m_searchBox->setActive(active);
Missing separate debuginfos, use: dnf debuginfo-install baloo-widgets-23.08.4-1.fc39.x86_64 bzip2-libs-1.0.8-16.fc39.x86_64 dbus-libs-1.14.10-1.fc39.x86_64 dbusmenu-qt5-0.9.3-0.32.20160218.fc39.x86_64 double-conversion-3.1.5-9.fc39.x86_64 duktape-2.7.0-5.fc39.x86_64 elfutils-libelf-0.190-4.fc39.x86_64 expat-2.5.0-3.fc39.x86_64 fontconfig-2.14.2-5.fc39.x86_64 freetype-2.13.1-2.fc39.x86_64 glib2-2.78.3-1.fc39.x86_64 glibc-2.38-14.fc39.x86_64 graphite2-1.3.14-12.fc39.x86_64 gsm-1.0.22-3.fc39.x86_64 harfbuzz-8.2.1-2.fc39.x86_64 keyutils-libs-1.6.1-7.fc39.x86_64 kf5-attica-5.111.0-1.fc39.x86_64 kf5-baloo-libs-5.111.0-1.fc39.x86_64 kf5-frameworkintegration-libs-5.111.0-2.fc39.x86_64 kf5-kactivities-5.111.0-1.fc39.x86_64 kf5-karchive-5.111.0-1.fc39.x86_64 kf5-kauth-5.111.0-1.fc39.x86_64 kf5-kbookmarks-5.111.0-1.fc39.x86_64 kf5-kcmutils-5.111.0-1.fc39.x86_64 kf5-kcodecs-5.111.0-1.fc39.x86_64 kf5-kcompletion-5.111.0-1.fc39.x86_64 kf5-kconfig-core-5.111.0-1.fc39.x86_64 kf5-kconfig-gui-5.111.0-1.fc39.x86_64 kf5-kconfigwidgets-5.111.0-1.fc39.x86_64 kf5-kcrash-5.111.0-1.fc39.x86_64 kf5-kdbusaddons-5.111.0-1.fc39.x86_64 kf5-kdeclarative-5.111.0-1.fc39.x86_64 kf5-kfilemetadata-5.111.0-1.fc39.x86_64 kf5-kguiaddons-5.111.0-1.fc39.x86_64 kf5-ki18n-5.111.0-1.fc39.x86_64 kf5-kiconthemes-5.111.0-1.fc39.x86_64 kf5-kitemviews-5.111.0-1.fc39.x86_64 kf5-kjobwidgets-5.111.0-1.fc39.x86_64 kf5-knewstuff-5.111.0-1.fc39.x86_64 kf5-knotifications-5.111.0-1.fc39.x86_64 kf5-kpackage-5.111.0-1.fc39.x86_64 kf5-kparts-5.111.0-1.fc39.x86_64 kf5-kservice-5.111.0-1.fc39.x86_64 kf5-ktextwidgets-5.111.0-1.fc39.x86_64 kf5-kwidgetsaddons-5.111.0-1.fc39.x86_64 kf5-kwindowsystem-5.111.0-1.fc39.x86_64 kf5-solid-5.111.0-1.fc39.x86_64 kf5-sonnet-core-5.111.0-1.fc39.x86_64 kf5-sonnet-ui-5.111.0-1.fc39.x86_64 kf5-syndication-5.111.0-1.fc39.x86_64 libX11-xcb-1.8.7-1.fc39.x86_64 libXext-1.3.5-3.fc39.x86_64 libXfixes-6.0.0-6.fc39.x86_64 libXi-1.8.1-2.fc39.x86_64 libXtst-1.2.4-3.fc39.x86_64 libacl-2.3.1-9.fc39.x86_64 libblkid-2.39.3-1.fc39.x86_64 libcanberra-0.30-32.fc39.x86_64 libcap-2.48-9.fc39.x86_64 libdrm-2.4.117-1.fc39.x86_64 libevent-2.1.12-9.fc39.x86_64 libffi-3.4.4-4.fc39.x86_64 libglvnd-1.7.0-1.fc39.x86_64 libglvnd-egl-1.7.0-1.fc39.x86_64 libidn2-2.3.4-3.fc39.x86_64 libimobiledevice-1.3.0^20230705git6fc41f5-1.fc39.x86_64 libimobiledevice-glue-1.0.0-1.fc39.x86_64 libplist-2.3.0-1.fc39.x86_64 libpng-1.6.37-15.fc39.x86_64 libproxy-0.5.3-3.fc39.x86_64 libsndfile-1.1.0-9.fc39.x86_64 libstdc++-13.2.1-6.fc39.x86_64 libtdb-1.4.9-1.fc39.x86_64 libtool-ltdl-2.4.7-7.fc39.x86_64 libvorbis-1.3.7-8.fc39.x86_64 libwayland-cursor-1.22.0-2.fc39.x86_64 libxkbcommon-1.6.0-1.fc39.x86_64 libxshmfence-1.3-13.fc39.x86_64 llvm-libs-17.0.6-1.fc39.x86_64 lmdb-libs-0.9.31-2.fc39.x86_64 lz4-libs-1.9.4-4.fc39.x86_64 mesa-libglapi-23.3.1-4.fc39.x86_64 opus-1.3.1-13.fc39.x86_64 pcre2-10.42-1.fc39.2.x86_64 phonon-qt5-4.11.1-12.fc39.x86_64 plasma-integration-5.27.10-1.fc39.x86_64 pulseaudio-libs-16.1-5.fc39.x86_64 pulseaudio-libs-glib2-16.1-5.fc39.x86_64 qt5-qtbase-5.15.11-7.fc39.x86_64 qt5-qtdeclarative-5.15.11-2.fc39.x86_64 qt5-qtspeech-5.15.11-1.fc39.x86_64 qt5-qtsvg-5.15.11-1.fc39.x86_64 qt5-qtwayland-5.15.11-1.fc39.x86_64 qt5-qtx11extras-5.15.11-1.fc39.x86_64 systemd-libs-254.7-1.fc39.x86_64 xcb-util-keysyms-0.4.1-3.fc39.x86_64 zlib-1.2.13-4.fc39.x86_64
(gdb) c
Continuing.
KCrash: Application 'dolphin' crashing...
QSocketNotifier: Invalid socket 6 and type 'Read', disabling...
The Wayland connection experienced a fatal error: Descrittore di file errato
[Thread 0x7fffe164a6c0 (LWP 11749) exited]
[Thread 0x7fffc97ff6c0 (LWP 11758) exited]
[Thread 0x7fffe1e4b6c0 (LWP 11748) exited]
[Thread 0x7fffe27ff6c0 (LWP 11747) exited]
[Thread 0x7fffeff68a00 (LWP 11710) exited]
[Thread 0x7fffe0b306c0 (LWP 11751) exited]
[Thread 0x7fffc8f686c0 (LWP 11767) exited]
[New process 11710]
[Inferior 1 (process 11710) exited with code 01]
(gdb) bt
No stack.
(gdb) c
The program is not being run.

After installing all the debug packages I will send you a second response.

Comment 22 Akseli Lahtinen 2024-01-09 10:16:01 UTC

Thanks for sharing, this is helpful. Seems it tries to open the search box but can't find it and instantly fails.

Comment 23 Giovanni 2024-01-09 14:44:40 UTC

I did a further check by downloading all the debug files recommended by gdb: hell! My ADSL lines are painfully slow in this period but the fact is that I am sending you a further response made using gdb. The result is this:

giovanni@localhost:~$ gdb dolphin
GNU gdb (Fedora Linux) 14.1-1.fc39
Copyright (C) 2023 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from dolphin...
Reading symbols from /usr/lib/debug/usr/bin/dolphin-23.08.4-1.fc39.x86_64.debug...
(gdb) r
Starting program: /usr/bin/dolphin 

This GDB supports auto-downloading debuginfo from the following URLs:
  <https://debuginfod.fedoraproject.org/>
Enable debuginfod for this session? (y or [n]) n
Debuginfod has been disabled.
To make this setting permanent, add 'set debuginfod enabled off' to .gdbinit.
Missing separate debuginfo for /lib64/libdolphinprivate.so.5.
The debuginfo package for this file is probably broken.
Missing separate debuginfo for /lib64/libKF5KIOFileWidgets.so.5.
The debuginfo package for this file is probably broken.
Missing separate debuginfo for /lib64/libKF5KIOWidgets.so.5.
The debuginfo package for this file is probably broken.
Missing separate debuginfo for /lib64/libKF5KIOGui.so.5.
The debuginfo package for this file is probably broken.
Missing separate debuginfo for /lib64/libKF5KIOCore.so.5.
The debuginfo package for this file is probably broken.
Missing separate debuginfo for /lib64/libQt5Widgets.so.5.
The debuginfo package for this file is probably broken.
Missing separate debuginfo for /lib64/libQt5Gui.so.5.
The debuginfo package for this file is probably broken.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Missing separate debuginfo for /lib64/libdolphinvcs.so.5.
The debuginfo package for this file is probably broken.
Missing separate debuginfo for /lib64/libmount.so.1.
The debuginfo package for this file is probably broken.
Missing separate debuginfo for /lib64/libQt5PrintSupport.so.5.
The debuginfo package for this file is probably broken.
Missing separate debuginfo for /lib64/libgcc_s.so.1.
The debuginfo package for this file is probably broken.
Missing separate debuginfo for /lib64/libGL.so.1.
The debuginfo package for this file is probably broken.
Missing separate debuginfo for /lib64/libpcre2-16.so.0.
The debuginfo package for this file is probably broken.
Missing separate debuginfo for /lib64/libwayland-client.so.0.
The debuginfo package for this file is probably broken.
Missing separate debuginfo for /lib64/libGLX.so.0.
The debuginfo package for this file is probably broken.
[New Thread 0x7fffe27ff6c0 (LWP 253060)]
Missing separate debuginfo for /usr/lib64/qt5/plugins/platforminputcontexts/libcomposeplatforminputcontextplugin.so.
The debuginfo package for this file is probably broken.
[New Thread 0x7fffe1e4b6c0 (LWP 253061)]
[New Thread 0x7fffe164a6c0 (LWP 253062)]
Missing separate debuginfo for /lib64/libwayland-egl.so.1.
The debuginfo package for this file is probably broken.
Missing separate debuginfo for /lib64/libwayland-server.so.0.
The debuginfo package for this file is probably broken.
[New Thread 0x7fffe0b306c0 (LWP 253096)]
[New Thread 0x7fffc97ff6c0 (LWP 253097)]
[New Thread 0x7fffc8f686c0 (LWP 253098)]

Thread 1 "dolphin" received signal SIGSEGV, Segmentation fault.
0x00005555555bed1b in DolphinViewContainer::setActive (this=0x0, active=true)
    at /usr/src/debug/dolphin-23.08.4-1.fc39.x86_64/src/dolphinviewcontainer.cpp:218
218         m_searchBox->setActive(active);
Missing separate debuginfos, use: dnf debuginfo-install cyrus-sasl-lib-2.1.28-11.fc39.x86_64 flac-libs-1.4.3-2.fc39.x86_64 kf5-kcoreaddons-5.111.0-1.fc39.x86_64 kf5-kglobalaccel-libs-5.111.0-1.fc39.x86_64 kf5-kxmlgui-5.111.0-1.fc39.x86_64 krb5-libs-1.21.2-2.fc39.x86_64 lame-libs-3.100-15.fc39.x86_64 libXau-1.0.11-3.fc39.x86_64 libXcursor-1.2.1-4.fc39.x86_64 libXrender-0.9.11-3.fc39.x86_64 libasyncns-0.8-25.fc39.x86_64 libattr-2.5.1-8.fc39.x86_64 libbrotli-1.1.0-1.fc39.x86_64 libcom_err-1.47.0-2.fc39.x86_64 libcurl-8.2.1-4.fc39.x86_64 libedit-3.1-48.20230828cvs.fc39.x86_64 libicu-73.2-2.fc39.x86_64 libogg-1.3.5-6.fc39.x86_64 libpciaccess-0.16-9.fc39.x86_64 libpsl-0.21.2-4.fc39.x86_64 libssh-0.10.6-2.fc39.x86_64 libunistring-1.1-5.fc39.x86_64 libusbmuxd-2.0.2^20230620git8d30a55-3.fc39.x86_64 libxcb-1.13.1-12.fc39.x86_64 libxcrypt-4.4.36-2.fc39.x86_64 libxml2-2.10.4-3.fc39.x86_64 mesa-dri-drivers-23.3.1-4.fc39.x86_64 mesa-libEGL-23.3.1-4.fc39.x86_64 mesa-libglapi-23.3.1-4.fc39.x86_64 mpg123-libs-1.31.3-2.fc39.x86_64 openssl-libs-3.1.1-4.fc39.x86_64 qt5-qtquickcontrols2-5.15.11-1.fc39.x86_64 qt5-style-oxygen-5.27.10-1.fc39.x86_64 xz-libs-5.4.4-1.fc39.x86_64
(gdb) bt
#0  0x00005555555bed1b in DolphinViewContainer::setActive
    (this=0x0, active=true)
    at /usr/src/debug/dolphin-23.08.4-1.fc39.x86_64/src/dolphinviewcontainer.cpp:218
#1  0x000055555561cddf in DolphinTabPage::restoreState(QByteArray const&) [clone .isra.0] (this=0x555555a759b0, state=<optimized out>)
    at /usr/src/debug/dolphin-23.08.4-1.fc39.x86_64/src/dolphintabpage.cpp:322
#2  0x00005555555a921d in DolphinTabWidget::readProperties
    (group=..., this=0x555555a47090)
    at /usr/src/debug/dolphin-23.08.4-1.fc39.x86_64/src/dolphintabwidget.cpp:87
#3  DolphinMainWindow::readProperties (this=<optimized out>, group=...)
    at /usr/src/debug/dolphin-23.08.4-1.fc39.x86_64/src/dolphinmainwindow.cpp:673
#4  0x00007ffff76b08e8 in KMainWindow::readPropertiesInternal(KConfig*, int) ()
    at /lib64/libKF5XmlGui.so.5
#5  0x00007ffff76b094a in KMainWindow::restore(int, bool) ()
    at /lib64/libKF5XmlGui.so.5
#6  0x00005555555a75e9 in main (argc=<optimized out>, argv=<optimized out>)
    at /usr/src/debug/dolphin-23.08.4-1.fc39.x86_64/src/main.cpp:234
(gdb) c
Continuing.
KCrash: Application 'dolphin' crashing...
The Wayland connection experienced a fatal error: Descrittore di file errato
[Thread 0x7fffc8f686c0 (LWP 253098) exited]
[Thread 0x7fffc97ff6c0 (LWP 253097) exited]
[Thread 0x7fffe0b306c0 (LWP 253096) exited]
[Thread 0x7fffe164a6c0 (LWP 253062) exited]
[Thread 0x7fffe1e4b6c0 (LWP 253061) exited]
[Thread 0x7fffeff68a00 (LWP 252946) exited]
[Thread 0x7fffe27ff6c0 (LWP 253060) exited]
[New process 252946]
[Inferior 1 (process 252946) exited with code 01]

PS: gdb reported that the debug files were broken and not installed, yet they were installed! Since they weren't usable, I guess I'll remove them...

Comment 24 Akseli Lahtinen 2024-01-10 10:45:30 UTC

It seems it's trying to read some state from the config, but fails.

There's three different items for Dolphin related data, I guess you could try once more deleting/renaming them:

~/.cache/dolphin

~/.local/share/dolphin

~/.config/dolphinrc

Try moving/deleting all these three and see if it helps? I am at loss what else it could be.

Comment 25 Giovanni 2024-01-10 16:47:24 UTC

I have tested removing or renaming the files and the directory as reported in the last e-mail: always crash! These are the outputs from the console, if launched from it:

giovanni@localhost:~$ dolphin
KCrash: Application 'dolphin' crashing...
The Wayland connection experienced a fatal error: Descrittore di file errato
giovanni@localhost:~$ dolphin
KCrash: Application 'dolphin' crashing...
The Wayland connection experienced a fatal error: Descrittore di file errato
giovanni@localhost:~$ dolphin
KCrash: Application 'dolphin' crashing...
The Wayland connection experienced a fatal error: Descrittore di file errato
giovanni@localhost:~$

Comment 26 Giovanni 2024-01-10 22:33:53 UTC

I think i have found some new informations about this bug. I started Dolphin from gdb under Konsole under X-Windows, Wayland is... problematic... See these:

giovanni@localhost:~$ gdb dolphin
GNU gdb (Fedora Linux) 14.1-1.fc39
Copyright (C) 2023 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from dolphin...

This GDB supports auto-downloading debuginfo from the following URLs:
  <https://debuginfod.fedoraproject.org/>
Enable debuginfod for this session? (y or [n]) n
Debuginfod has been disabled.
To make this setting permanent, add 'set debuginfod enabled off' to .gdbinit.
Reading symbols from .gnu_debugdata for /usr/bin/dolphin...
(No debugging symbols found in .gnu_debugdata for /usr/bin/dolphin)
Missing separate debuginfos, use: dnf debuginfo-install dolphin-23.08.4-1.fc39.x--Type <RET> for more, q to quit, c to continue without paging--c
86_64
(gdb) r
Starting program: /usr/bin/dolphin 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
[New Thread 0x7fffe26a96c0 (LWP 431252)]
[New Thread 0x7fffe1ea86c0 (LWP 431253)]
[New Thread 0x7fffe110e6c0 (LWP 431258)]
[New Thread 0x7fffd8dff6c0 (LWP 431281)]
[New Thread 0x7fffc69ff6c0 (LWP 431287)]
[New Thread 0x7fffc61fe6c0 (LWP 431288)]
[New Thread 0x7fffc59fd6c0 (LWP 431289)]
[New Thread 0x7fffc51fc6c0 (LWP 431290)]
[New Thread 0x7fffc49fb6c0 (LWP 431291)]

Thread 1 "dolphin" received signal SIGSEGV, Segmentation fault.
0x00005555555bed1b in DolphinViewContainer::setActive(bool) ()
(gdb) c
Continuing.
KCrash: Application 'dolphin' crashing...
QSocketNotifier: Invalid socket 5 and type 'Read', disabling...
[Thread 0x7fffe1ea86c0 (LWP 431253) exited]
QSocketNotifier: Invalid socket 17 and type 'Read', disabling...
QSocketNotifier: Invalid socket 18 and type 'Read', disabling...
KCrash: Attempting to start /usr/libexec/drkonqi
[Detaching after fork from child process 431420]

Thread 1 "dolphin" received signal SIGSTOP, Stopped (signal).
0x00007ffff5525bcd in poll () from /lib64/libc.so.6
(gdb) r
The program being debugged has been started already.
Start it from the beginning? (y or n) y
Starting program: /usr/bin/dolphin 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
[New Thread 0x7fffe26a96c0 (LWP 431641)]
[New Thread 0x7fffe1ea86c0 (LWP 431642)]
[New Thread 0x7fffe110e6c0 (LWP 431665)]
[New Thread 0x7fffd8dff6c0 (LWP 431667)]
[New Thread 0x7fffc69ff6c0 (LWP 431674)]
[New Thread 0x7fffc61fe6c0 (LWP 431675)]
[New Thread 0x7fffc59fd6c0 (LWP 431676)]
[New Thread 0x7fffc51fc6c0 (LWP 431677)]
[New Thread 0x7fffc49fb6c0 (LWP 431678)]

Thread 1 "dolphin" received signal SIGSEGV, Segmentation fault.
0x00005555555bed1b in DolphinViewContainer::setActive(bool) ()
(gdb) bt
#0  0x00005555555bed1b in DolphinViewContainer::setActive(bool) ()
#1  0x000055555561cddf in DolphinTabPage::restoreState(QByteArray const&) [clone .isra.0] ()
#2  0x00005555555a921d in DolphinMainWindow::readProperties(KConfigGroup const&) ()
#3  0x00007ffff76b08e8 in KMainWindow::readPropertiesInternal(KConfig*, int) ()
    at /lib64/libKF5XmlGui.so.5
#4  0x00007ffff76b094a in KMainWindow::restore(int, bool) ()
    at /lib64/libKF5XmlGui.so.5
#5  0x00005555555a75e9 in main ()
(gdb) c
Continuing.
KCrash: Application 'dolphin' crashing...
QSocketNotifier: Invalid socket 5 and type 'Read', disabling...
QSocketNotifier: Invalid socket 17 and type 'Read', disabling...
QSocketNotifier: Invalid socket 18 and type 'Read', disabling...
KCrash: Attempting to start /usr/libexec/drkonqi
[Thread 0x7fffc61fe6c0 (LWP 431675) exited]
[Thread 0x7fffc51fc6c0 (LWP 431677) exited]
[Thread 0x7fffc59fd6c0 (LWP 431676) exited]
[Thread 0x7fffc69ff6c0 (LWP 431674) exited]
[Thread 0x7fffe1ea86c0 (LWP 431642) exited]
[Detaching after fork from child process 431851]

Thread 1 "dolphin" received signal SIGSTOP, Stopped (signal).
0x00007ffff5525bcd in poll () from /lib64/libc.so.6
(gdb) file:///usr/lib64/qt5/qml/org/kde/kirigami.2/ContextDrawer.qml:135:9: QML ListView: Binding loop detected for property "topMargin"

Gdb is stopped, don't shows the prompt. It's here the bug?

Comment 27 Giovanni 2024-01-10 22:35:28 UTC

I lost these:


Continuing.

Thread 2 "QDBusConnection" received signal SIGCONT, Continued.
[Switching to Thread 0x7fffe26a96c0 (LWP 431641)]
0x00007ffff5525bcd in poll () from /lib64/libc.so.6
(gdb)

Comment 28 Giovanni 2024-01-11 10:38:53 UTC

Confirm my last report and this is a reply of the previous test:

giovanni@localhost:~$ gdb dolphin
GNU gdb (Fedora Linux) 14.1-1.fc39
Copyright (C) 2023 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from dolphin...

This GDB supports auto-downloading debuginfo from the following URLs:
  <https://debuginfod.fedoraproject.org/>
Enable debuginfod for this session? (y or [n]) n
Debuginfod has been disabled.
To make this setting permanent, add 'set debuginfod enabled off' to .gdbinit.
Reading symbols from .gnu_debugdata for /usr/bin/dolphin...
(No debugging symbols found in .gnu_debugdata for /usr/bin/dolphin)
Missing separate debuginfos, use: dnf debuginfo-install dolphin-23.08.4-1.fc39.x--Type <RET> for more, q to quit, c to continue without paging--c
86_64
(gdb) r
Starting program: /usr/bin/dolphin 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
[New Thread 0x7fffe26a96c0 (LWP 159135)]
[New Thread 0x7fffe1ea86c0 (LWP 159136)]
[New Thread 0x7fffe110e6c0 (LWP 159140)]
[New Thread 0x7fffd8dff6c0 (LWP 159170)]
[New Thread 0x7fffc69ff6c0 (LWP 159171)]
[New Thread 0x7fffc61fe6c0 (LWP 159172)]
[New Thread 0x7fffc59fd6c0 (LWP 159173)]
[New Thread 0x7fffc51fc6c0 (LWP 159174)]
[New Thread 0x7fffc49fb6c0 (LWP 159175)]

Thread 1 "dolphin" received signal SIGSEGV, Segmentation fault.
0x00005555555bed1b in DolphinViewContainer::setActive(bool) ()
(gdb) bt
#0  0x00005555555bed1b in DolphinViewContainer::setActive(bool) ()
#1  0x000055555561cddf in DolphinTabPage::restoreState(QByteArray const&) [clone .isra.0] ()
#2  0x00005555555a921d in DolphinMainWindow::readProperties(KConfigGroup const&) ()
#3  0x00007ffff76b08e8 in KMainWindow::readPropertiesInternal(KConfig*, int) ()
    at /lib64/libKF5XmlGui.so.5
#4  0x00007ffff76b094a in KMainWindow::restore(int, bool) ()
    at /lib64/libKF5XmlGui.so.5
#5  0x00005555555a75e9 in main ()
(gdb) bt
#0  0x00005555555bed1b in DolphinViewContainer::setActive(bool) ()
#1  0x000055555561cddf in DolphinTabPage::restoreState(QByteArray const&) [clone .isra.0] ()
#2  0x00005555555a921d in DolphinMainWindow::readProperties(KConfigGroup const&) ()
#3  0x00007ffff76b08e8 in KMainWindow::readPropertiesInternal(KConfig*, int) ()
    at /lib64/libKF5XmlGui.so.5
#4  0x00007ffff76b094a in KMainWindow::restore(int, bool) ()
    at /lib64/libKF5XmlGui.so.5
#5  0x00005555555a75e9 in main ()
(gdb) bt
#0  0x00005555555bed1b in DolphinViewContainer::setActive(bool) ()
#1  0x000055555561cddf in DolphinTabPage::restoreState(QByteArray const&) [clone .isra.0] ()
#2  0x00005555555a921d in DolphinMainWindow::readProperties(KConfigGroup const&) ()
#3  0x00007ffff76b08e8 in KMainWindow::readPropertiesInternal(KConfig*, int) ()
    at /lib64/libKF5XmlGui.so.5
#4  0x00007ffff76b094a in KMainWindow::restore(int, bool) ()
    at /lib64/libKF5XmlGui.so.5
#5  0x00005555555a75e9 in main ()
(gdb) c
Continuing.
KCrash: Application 'dolphin' crashing...
[Thread 0x7fffc69ff6c0 (LWP 159171) exited]
[Thread 0x7fffc51fc6c0 (LWP 159174) exited]
[Thread 0x7fffc59fd6c0 (LWP 159173) exited]
[Thread 0x7fffe1ea86c0 (LWP 159136) exited]
[Thread 0x7fffc61fe6c0 (LWP 159172) exited]
KCrash: Attempting to start /usr/libexec/drkonqi
[Detaching after fork from child process 159339]

Thread 1 "dolphin" received signal SIGSTOP, Stopped (signal).
0x00007ffff5525bcd in poll () from /lib64/libc.so.6
(gdb) file:///usr/lib64/qt5/qml/org/kde/kirigami.2/ContextDrawer.qml:135:9: QML ListView: Binding loop detected for property "topMargin"

Continuing.
Couldn't read debug register: Nessun processo corrisponde.
(gdb) [Thread 0x7fffc49fb6c0 (LWP 159175) exited]
[Thread 0x7fffd8dff6c0 (LWP 159170) exited]
[Thread 0x7fffe110e6c0 (LWP 159140) exited]
[Thread 0x7fffe26a96c0 (LWP 159135) exited]
[Inferior 1 (process 159130) exited with code 0375]

The program is not being run.
(gdb) 

This a problem in a QML page... Someone have forget the KISS principle...

Comment 29 Giovanni 2024-02-21 14:46:39 UTC

Yesterday I updated the system with the latest updates but the bug in Dolphin persists. The new version 23.08.5-1 dies on startup like previous versions.

Comment 30 TraceyC 2024-10-17 20:01:53 UTC

I'm going to close this out in favor of the new report you opened in bug 494533
This is likely a very similar crash, and the backtrace differs between the old versions of Dolphin and Plasma vs the new ones

*** This bug has been marked as a duplicate of bug 494533 ***