[systemsettings] [Bug 353825] Login by x2go in Plasma 5 crashes KCMInit

[Fabian Köster via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=353825

--- Comment #5 from Fabian Köster <koesterreich at fastmail.fm> ---
Created attachment 95718
  --> https://bugs.kde.org/attachment.cgi?id=95718&action=edit
Patch for libXi preventing segfault

Sorry, please ignore my previous comments, I forgot that I applied a patch to
libXi some days ago to help workaround this problem.

Without this patch this bug still occurs. The backtrace for Plasma 5.5 Beta
(aka 5.4.95) is below.

I will open separate bugs for the other segfaults. Sorry for the chaos.

Application: KCMInit (kdeinit5), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f973d582780 (LWP 2700))]

Thread 2 (Thread 0x7f9729f26700 (LWP 2702)):
#0  0x00007f973be3c2dd in poll () from /lib64/libc.so.6
#1  0x00007f973b5a6ac2 in ?? () from /usr/lib64/libxcb.so.1
#2  0x00007f973b5a872f in xcb_wait_for_event () from /usr/lib64/libxcb.so.1
#3  0x00007f972b434c89 in QXcbEventReader::run (this=0x676a90) at
qxcbconnection.cpp:1229
#4  0x00007f973c198492 in QThreadPrivate::start (arg=0x676a90) at
thread/qthread_unix.cpp:331
#5  0x00007f9739cbb334 in start_thread () from /lib64/libpthread.so.0
#6  0x00007f973be451bd in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7f973d582780 (LWP 2700)):
[KCrash Handler]
#6  0x00007f972b1efc79 in XIFreeDeviceInfo (info=0x0) at
/hdd/tmp/portage/x11-libs/libXi-1.7.5/work/libXi-1.7.5/src/XIQueryDevice.c:118
#7  0x00007f9723df0b8f in MouseSettings::apply (this=this at entry=0x7ffc10f07f70,
force=<optimized out>) at
/hdd/tmp/portage/kde-plasma/plasma-desktop-5.4.95/work/plasma-desktop-5.4.95/kcms/input/mouse.cpp:723
#8  0x00007f9723df3fe5 in MouseSettings::apply (this=this at entry=0x7ffc10f07f70,
force=force at entry=true) at
/hdd/tmp/portage/kde-plasma/plasma-desktop-5.4.95/work/plasma-desktop-5.4.95/kcms/input/mouse.cpp:727
#9  0x00007f9723df6fd4 in kcminit_mouse () at
/hdd/tmp/portage/kde-plasma/plasma-desktop-5.4.95/work/plasma-desktop-5.4.95/kcms/input/main.cpp:56
#10 0x00007f972b4e59cb in KCMInit::runModule (this=this at entry=0x7ffc10f08370,
libName=..., service=...) at
/hdd/tmp/portage/kde-plasma/plasma-workspace-5.4.95/work/plasma-workspace-5.4.95/startkde/kcminit/main.cpp:86
#11 0x00007f972b4e6266 in KCMInit::runModules (this=this at entry=0x7ffc10f08370,
phase=phase at entry=0) at
/hdd/tmp/portage/kde-plasma/plasma-workspace-5.4.95/work/plasma-workspace-5.4.95/startkde/kcminit/main.cpp:128
#12 0x00007f972b4e6927 in KCMInit::KCMInit (this=this at entry=0x7ffc10f08370,
args=...) at
/hdd/tmp/portage/kde-plasma/plasma-workspace-5.4.95/work/plasma-workspace-5.4.95/startkde/kcminit/main.cpp:204
#13 0x00007f972b4e7a8b in kdemain (argc=1, argv=<optimized out>) at
/hdd/tmp/portage/kde-plasma/plasma-workspace-5.4.95/work/plasma-workspace-5.4.95/startkde/kcminit/main.cpp:268
#14 0x0000000000408560 in launch (argc=argc at entry=1, _name=0x60fd71
"kcminit_startup", args=<optimized out>, args at entry=0x0, cwd=cwd at entry=0x0,
envc=envc at entry=0, envs=<optimized out>, envs at entry=0x0, reset_env=false,
tty=0x0, avoid_loops=false, startup_id_str=0x40b17d "0") at
/hdd/tmp/portage/kde-frameworks/kinit-5.16.0-r1/work/kinit-5.16.0/src/kdeinit/kinit.cpp:745
#15 0x0000000000405020 in main (argc=5, argv=<optimized out>) at
/hdd/tmp/portage/kde-frameworks/kinit-5.16.0-r1/work/kinit-5.16.0/src/kdeinit/kinit.cpp:1825

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