[dolphin] [Bug 426989] Dolphin crashes when launched via Steam

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=426989

--- Comment #4 from maqo314_2 at posteo.de ---
This is indeed close to https://bugs.kde.org/show_bug.cgi?id=423902. In the
comments to this bug ticket it is suggested that this is fixed upstream. I
tested with KDE neon 5.19:

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: KDE neon 5.19
KDE Plasma Version: 5.19.5
KDE Frameworks Version: 5.74.0
Qt Version: 5.15.0
Kernel Version: 5.4.0-48-generic
OS Type: 64-bit
Processors: 12x AMD Ryzen 5 3600 6-Core Processor
Memory: 31.4 GiB of RAM
Graphics Processor: NV124

OBSERVED RESULT:
a) terminal is not active when opening "dolphin"
-"dolphin" has no problems at all with opening the right click menu any longer
-choosing "Open Terminal Here"/ pressing F4 blocks "dolphin":
  -it takes 30s to "split" dolphin horizontally to prepare space for terminal
  -it takes another 30s to actually have the terminal ready
  -then it works as intended
b) terminal is active when opening "dolphin"
-when opening a new "dolphin" instance out of Steam with terminal active, it
 takes exactly 60s to have the window ready
  -it takes 30s to render the decorated top ribbon (with min, max, close
button)
  -it takes another 30s to actually have "dolphin" including the terminal ready

HOW I GOT THE TRACE (please tell me what I did it wrong):
I did choose variant "a)":
-Browse local files (in Steam) to open new "dolphin" instance
-sudo gdb -p <dolphin instance PID>
-c: gdb -> "Continuing."
-F4 in "dolphin" and wait 30s + 30s until "dolphin" is done
  -gdb output: "[Detaching after fork from child process 6391]"
-Ctrl+C to stop gdb
-bt
-press F4 in dolphin

"TRACE" (most probably not correct):
marco at kdeneon:~$ sudo gdb -p 6441
GNU gdb (Ubuntu 9.1-0ubuntu1) 9.1
Copyright (C) 2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
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    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
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Attaching to process 6441
[New LWP 6442]
[New LWP 6443]
[New LWP 6444]
[New LWP 6445]
[New LWP 6446]
[New LWP 6447]
[New LWP 6452]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007f6fbf317aff in __GI___poll (fds=0x5563b45413b0, nfds=11, timeout=29997)
at ../sysdeps/unix/sysv/linux/poll.c:29
29      ../sysdeps/unix/sysv/linux/poll.c: No such file or directory.
(gdb) c
Continuing.
[Detaching after fork from child process 6664]
^C
Thread 1 "dolphin" received signal SIGINT, Interrupt.
0x00007f6fbf317aff in __GI___poll (fds=0x5563b456fce0, nfds=14, timeout=2000)
at ../sysdeps/unix/sysv/linux/poll.c:29
29      in ../sysdeps/unix/sysv/linux/poll.c
(gdb) Quit
(gdb) bt
#0  0x00007f6fbf317aff in __GI___poll (fds=0x5563b456fce0, nfds=14,
timeout=2000) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f6fbae1e1ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f6fbae1e2e3 in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f6fbd08de92 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f6fbd0321bb in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f6fbd03a354 in QCoreApplication::exec() () from
/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f6fbf44324f in kdemain (argc=<optimized out>, argv=<optimized out>)
at ./src/main.cpp:206
#7  0x00007f6fbf2290b3 in __libc_start_main (main=0x5563b25a9060 <main>,
argc=2, argv=0x7fff8fa09fb8, init=<optimized out>, fini=<optimized out>, 
    rtld_fini=<optimized out>, stack_end=0x7fff8fa09fa8) at
../csu/libc-start.c:308
#8  0x00005563b25a909e in _start ()
(gdb) quit
A debugging session is active.

        Inferior 1 [process 6441] will be detached.

Quit anyway? (y or n) y
Detaching from program: /usr/bin/dolphin, process 6441
[Inferior 1 (process 6441) detached]

TL;DR:
right click menu is fixed in KDE neon
opening the terminal still has 2 timeouts á 30s which is incredibly annoying

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