https://bugs.kde.org/show_bug.cgi?id=520516
Bug ID: 520516
Summary: drkonqi repeatedly crashes after a process crashes
when not logged in
Classification: Applications
Product: drkonqi
Version First 6.5.4
Reported In:
Platform: Debian testing
OS: Linux
Status: REPORTED
Severity: grave
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
DESCRIPTION
STEPS TO REPRODUCE
Start a remote ssh session on a remote machine. There is no user logged-in on
that machine. Then execute a process that crashes.
OBSERVED RESULT
After a while `coredumpctl --reverse` shows something like this:
```
Fri 2026-05-22 15:59:38 CEST 33572 1000 1000 SIGSEGV present
/usr/lib/x86_64-linux-gnu/libexec/drkonqi-coredump>
Fri 2026-05-22 15:59:38 CEST 33571 1000 1000 SIGSEGV present
/usr/lib/x86_64-linux-gnu/libexec/drkonqi-coredump>
Fri 2026-05-22 15:59:38 CEST 33570 1000 1000 SIGSEGV present
/usr/lib/x86_64-linux-gnu/libexec/drkonqi-coredump>
Fri 2026-05-22 15:59:13 CEST 33483 1000 1000 SIGSEGV present
/usr/lib/x86_64-linux-gnu/libexec/drkonqi-coredump>
Fri 2026-05-22 15:59:13 CEST 33482 1000 1000 SIGSEGV present
/usr/lib/x86_64-linux-gnu/libexec/drkonqi-coredump>
Fri 2026-05-22 15:59:13 CEST 33481 1000 1000 SIGSEGV present
/usr/lib/x86_64-linux-gnu/libexec/drkonqi-coredump>
```
Looks like drkonqi crashes while trying to deal with the crash, crashes, and
after a short period retries.
This keeps happening until I notice and execute
```
$ systemctl --user stop drkonqi-coredump-launcher.socket
```
EXPECTED RESULT
No crashfest. Unfotunately there is no way of uninstalling drkonqi without
uninstalling all of KDE and masking the systemd services
drkonqi-coredump-launcher.socket works only until the next reboot.
SOFTWARE/OS VERSIONS
Operating System (available in the Info Center app, or by running `kinfo` in a
terminal window):
KDE Plasma Version: 6.5.4
Qt Version: 6.10.2
ADDITIONAL INFORMATION
```
$ coredumpctl gdb
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: 33572 (drkonqi-coredum)
UID: 1000 (oscar)
GID: 1000 (oscar)
Signal: 11 (SEGV)
Timestamp: Fri 2026-05-22 15:59:38 CEST (1min 25s ago)
Command Line: /usr/lib/x86_64-linux-gnu/libexec/drkonqi-coredump-launcher
Executable: /usr/lib/x86_64-linux-gnu/libexec/drkonqi-coredump-launcher
Control Group:
/user.slice/user-1000.slice/[email protected]/app.slice/drkonqi-coredump-launcher@325-73771-33547
_96902-0.service
Unit: [email protected]
User Unit: drkonqi-coredump-launcher@325-73771-33547_96902-0.service
Slice: user-1000.slice
Owner UID: 1000 (oscar)
Boot ID: 70c97a34ddd345b092d9198756b44f3e
Machine ID: 820d713a8ebd410fb1fe08ae2a3308d4
Hostname: zen
Storage:
/var/lib/systemd/coredump/core.drkonqi-coredum.1000.70c97a34ddd345b092d9198756b44f3e.33572.177945
8378000000.zst (present)
Size on Disk: 887.6K
Message: Process 33572 (drkonqi-coredum) of user 1000 dumped core.
Module libblkid.so.1 from deb util-linux-2.42-5.amd64
Module libgomp.so.1 from deb gcc-16-16.1.0-1.amd64
Module libatomic.so.1 from deb gcc-16-16.1.0-1.amd64
Module libmount.so.1 from deb util-linux-2.42-5.amd64
Module libzstd.so.1 from deb libzstd-1.5.7+dfsg-3+b2.amd64
Module libudev.so.1 from deb systemd-260.1-1.amd64
Module libgcc_s.so.1 from deb gcc-16-16.1.0-1.amd64
Module libstdc++.so.6 from deb gcc-16-16.1.0-1.amd64
Module libsystemd.so.0 from deb systemd-260.1-1.amd64
Stack trace of thread 33572:
16:01 [69/789]
#0 0x00007f5c39e0fef3 _ZN8QVariantC2ERK7QString
(libQt6Core.so.6 + 0x20fef3)
#1 0x00007f5c390eabb9 n/a (libQt6Gui.so.6 + 0x4eabb9)
#2 0x00007f5c3909fdb0 n/a (libQt6Gui.so.6 + 0x49fdb0)
#3 0x00007f5c390ab9b2
_ZN21QTextDocumentFragment8fromHtmlERK7QStringPK13QTextDocument (libQt6Gui
.so.6 + 0x4ab9b2)
#4 0x00007f5c3a6b485f n/a (libKF6Notifications.so.6 + 0x2885f)
#5 0x00007f5c3a6b5357 n/a (libKF6Notifications.so.6 + 0x29357)
#6 0x00007f5c3a6b0cc1 n/a (libKF6Notifications.so.6 + 0x24cc1)
#7 0x00007f5c39e04ea1 n/a (libQt6Core.so.6 + 0x204ea1)
#8 0x00007f5c39bc6458
_ZN23QDBusPendingCallWatcher8finishedEPS_ (libQt6DBus.so.6 + 0x8f458)
#9 0x00007f5c39df5f04 _ZN7QObject5eventEP6QEvent
(libQt6Core.so.6 + 0x1f5f04)
#10 0x00007f5c39dabdad
_ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt6Core.so.6
+ 0x1abdad)
#11 0x00007f5c39dac07f
_ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData (l
ibQt6Core.so.6 + 0x1ac07f)
#12 0x00007f5c3a01b037 n/a (libQt6Core.so.6 + 0x41b037)
#13 0x00007f5c3887868e n/a (libglib-2.0.so.0 + 0x5c68e)
#14 0x00007f5c3887ba1f n/a (libglib-2.0.so.0 + 0x5fa1f)
#15 0x00007f5c3887c1b0 g_main_context_iteration
(libglib-2.0.so.0 + 0x601b0)
#16 0x00007f5c3a018eb8
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEve
ntsFlagEE (libQt6Core.so.6 + 0x418eb8)
#17 0x00007f5c39db4ada
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0
x1b4ada)
#18 0x00007f5c39dae921 _ZN16QCoreApplication4execEv
(libQt6Core.so.6 + 0x1ae921)
#19 0x000056462f2ec467 n/a
(/usr/lib/x86_64-linux-gnu/libexec/drkonqi-coredump-launcher + 0xc467)
#20 0x000056462f2e7b35 n/a
(/usr/lib/x86_64-linux-gnu/libexec/drkonqi-coredump-launcher + 0x7b35)
#21 0x00007f5c39631f77 __libc_start_call_main (libc.so.6 +
0x29f77)
#22 0x00007f5c39632027 __libc_start_main_impl (libc.so.6 +
0x2a027)
#23 0x000056462f2e7cc1 n/a
(/usr/lib/x86_64-linux-gnu/libexec/drkonqi-coredump-launcher + 0x7cc1)
Stack trace of thread 33584:
#0 0x00007f5c396a5ffe __syscall_cancel_arch (libc.so.6 +
0x9dffe)
#1 0x00007f5c3969a7a4 __internal_syscall_cancel (libc.so.6 +
0x927a4)
#2 0x00007f5c3969a7ed __syscall_cancel (libc.so.6 + 0x927ed)
#3 0x00007f5c3971029e __GI_ppoll (libc.so.6 + 0x10829e)
#4 0x00007f5c3887bac4 n/a (libglib-2.0.so.0 + 0x5fac4)
#5 0x00007f5c3887c1b0 g_main_context_iteration
(libglib-2.0.so.0 + 0x601b0)
#6 0x00007f5c3a018eb8
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEve
ntsFlagEE (libQt6Core.so.6 + 0x418eb8)
#7 0x00007f5c39db4ada
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt6Core.so.6 + 0
#8 0x00007f5c39e9bea9 _ZN7QThread4execEv (libQt6Core.so.6 +
0x29bea9)
#9 0x00007f5c39b76ffe n/a (libQt6DBus.so.6 + 0x3fffe)
#10 0x00007f5c39f2df1b n/a (libQt6Core.so.6 + 0x32df1b)
#11 0x00007f5c3969dda9 start_thread (libc.so.6 + 0x95da9)
#12 0x00007f5c3971ce08 __clone3 (libc.so.6 + 0x114e08)
ELF object binary architecture: AMD x86-64
GNU gdb (Debian 17.2-1) 17.2
Copyright (C) 2025 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-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
/usr/lib/x86_64-linux-gnu/libexec/drkonqi-coredump-launcher...
(No debugging symbols found in
/usr/lib/x86_64-linux-gnu/libexec/drkonqi-coredump-launcher)
[New LWP 33572]
[New LWP 33584]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by
`/usr/lib/x86_64-linux-gnu/libexec/drkonqi-coredump-launcher'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x00007f5c39e0fef3 in QVariant::QVariant(QString const&) () from
/usr/lib/x86_64-linux-gnu/libQt6Core.so.6
[Current thread is 1 (Thread 0x7f5c344b6d80 (LWP 33572))]
(gdb) bt
#0 0x00007f5c39e0fef3 in QVariant::QVariant(QString const&) () at
/usr/lib/x86_64-linux-gnu/libQt6Core.so.6
#1 0x00007f5c390eabb9 in ??? () at /usr/lib/x86_64-linux-gnu/libQt6Gui.so.6
#2 0x00007f5c3909fdb0 in ??? () at /usr/lib/x86_64-linux-gnu/libQt6Gui.so.6
#3 0x00007f5c390ab9b2 in QTextDocumentFragment::fromHtml(QString const&,
QTextDocument const*) ()
at /usr/lib/x86_64-linux-gnu/libQt6Gui.so.6
#4 0x00007f5c3a6b485f in ??? () at
/usr/lib/x86_64-linux-gnu/libKF6Notifications.so.6
#5 0x00007f5c3a6b5357 in ??? () at
/usr/lib/x86_64-linux-gnu/libKF6Notifications.so.6
#6 0x00007f5c3a6b0cc1 in ??? () at
/usr/lib/x86_64-linux-gnu/libKF6Notifications.so.6
#7 0x00007f5c39e04ea1 in ??? () at /usr/lib/x86_64-linux-gnu/libQt6Core.so.6
#8 0x00007f5c39bc6458 in
QDBusPendingCallWatcher::finished(QDBusPendingCallWatcher*) ()
at /usr/lib/x86_64-linux-gnu/libQt6DBus.so.6
#9 0x00007f5c39df5f04 in QObject::event(QEvent*) () at
/usr/lib/x86_64-linux-gnu/libQt6Core.so.6
#10 0x00007f5c39dabdad in QCoreApplication::notifyInternal2(QObject*, QEvent*)
()
at /usr/lib/x86_64-linux-gnu/libQt6Core.so.6
#11 0x00007f5c39dac07f in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) ()
at /usr/lib/x86_64-linux-gnu/libQt6Core.so.6
#12 0x00007f5c3a01b037 in ??? () at /usr/lib/x86_64-linux-gnu/libQt6Core.so.6
#13 0x00007f5c3887868e in ??? () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007f5c3887ba1f in ??? () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007f5c3887c1b0 in g_main_context_iteration () at
/usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f5c3a018eb8 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt6Core.so.6
#17 0x00007f5c39db4ada in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/x86_64-linux-gnu/libQt6Core.so.6
#18 0x00007f5c39dae921 in QCoreApplication::exec() () at
/usr/lib/x86_64-linux-gnu/libQt6Core.so.6
#19 0x000056462f2ec467 in ??? ()
#20 0x000056462f2e7b35 in ??? ()
#21 0x00007f5c39631f77 in __libc_start_call_main
(main=main@entry=0x56462f2e76f0, argc=argc@entry=1,
argv=argv@entry=0x7ffc35059008)
at ../sysdeps/nptl/libc_start_call_main.h:58
#22 0x00007f5c39632027 in __libc_start_main_impl
(main=0x56462f2e76f0, argc=1, argv=0x7ffc35059008, init=<optimized out>,
fini=<optimized out>, rtld_fini=<opt
imized out>, stack_end=0x7ffc35058ff8) at ../csu/libc-start.c:360
#23 0x000056462f2e7cc1 in ??? ()
(gdb)
```
This is an excerpt of journalctl:
```
May 22 15:55:03 zen systemd-coredump[31628]: Process 31497 (drkonqi-coredum) of
user 1000 terminated abnormally >
May 22 15:55:03 zen systemd-coredump[31627]: Process 31500 (drkonqi-coredum) of
user 1000 terminated abnormally >
May 22 15:55:03 zen systemd-coredump[31629]: Process 31499 (drkonqi-coredum) of
user 1000 terminated abnormally >
May 22 15:55:03 zen systemd-coredump[31630]: Process 31498 (drkonqi-coredum) of
user 1000 terminated abnormally >
May 22 15:55:03 zen kernel: drkonqi-coredum[31497]: segfault at 0 ip
00007fc3d9a0fef3 sp 00007ffee5a9e2a8 error 4
May 22 15:55:03 zen kernel: drkonqi-coredum[31499]: segfault at 0 ip
00007f81d9c0fef3 sp 00007fff8e9b04f8 error 4
May 22 15:55:03 zen kernel: drkonqi-coredum[31500]: segfault at 0 ip
00007f1e42c0fef3 sp 00007ffe38a6f878 error 4
May 22 15:55:03 zen kernel: in
libQt6Core.so.6.10.2[20fef3,7fc3d98d0000+372000]
May 22 15:55:03 zen kernel: in
libQt6Core.so.6.10.2[20fef3,7f81d9ad0000+372000]
May 22 15:55:03 zen kernel: likely on CPU 10 (core 10, socket 0)
May 22 15:55:03 zen kernel: likely on CPU 13 (core 13, socket 0)
May 22 15:55:03 zen kernel: in
libQt6Core.so.6.10.2[20fef3,7f1e42ad0000+372000]
May 22 15:55:03 zen kernel: Code: c0 74 04 f0 83 00 01 c3 90 0f 1f 00 66 66 2e
0f 1f 84 00 00 00 00 00 f3 0f 1e >
May 22 15:55:03 zen kernel: Code: c0 74 04 f0 83 00 01 c3 90 0f 1f 00 66 66 2e
0f 1f 84 00 00 00 00 00 f3 0f 1e >
May 22 15:55:03 zen kernel: likely on CPU 21 (core 5, socket 0)
May 22 15:55:03 zen kernel: Code: c0 74 04 f0 83 00 01 c3 90 0f 1f 00 66 66 2e
0f 1f 84 00 00 00 00 00 f3 0f 1e >
May 22 15:55:03 zen kernel: drkonqi-coredum[31498]: segfault at 0 ip
00007f770140fef3 sp 00007ffeabe72fc8 error >
May 22 15:55:03 zen kernel: Code: c0 74 04 f0 83 00 01 c3 90 0f 1f 00 66 66 2e
0f 1f 84 00 00 00 00 00 f3 0f 1e >
May 22 15:55:03 zen systemd[1]: Started
systemd-coredump@278-102423-31627_54613-0.service - Process Core Dump (P>
May 22 15:55:03 zen systemd[1]: Started
systemd-coredump@279-102424-31628_17260-0.service - Process Core Dump (P>
May 22 15:55:03 zen systemd[1]: Started
systemd-coredump@280-102425-31630_54614-0.service - Process Core Dump (P>
May 22 15:55:03 zen systemd[1]: Started
systemd-coredump@281-36930-31629_41228-0.service - Process Core Dump (PI>
May 22 15:55:03 zen systemd[1]: Started
drkonqi-coredump-processor@278-102423-31627_54613-0.service - Pass syste>
May 22 15:55:03 zen systemd[1]: Started
drkonqi-coredump-processor@279-102424-31628_17260-0.service - Pass syste>
May 22 15:55:03 zen systemd[1]: Started
drkonqi-coredump-processor@280-102425-31630_54614-0.service - Pass syste>
May 22 15:55:03 zen systemd[1]: Started
drkonqi-coredump-processor@281-36930-31629_41228-0.service - Pass system>
May 22 15:55:03 zen systemd-coredump[31634]: Removed old coredump
core.drkonqi-coredum.1000.086484c7f1d9470a936d>
May 22 15:55:03 zen systemd-coredump[31634]: Removed old coredump
core.drkonqi-coredum.1000.086484c7f1d9470a936d>
May 22 15:55:03 zen drkonqi-coredump-processor[31642]: Entry doesn't look like
a dump. This may have been a vacc>
May 22 15:55:03 zen drkonqi-coredump-processor[31642]: Entry doesn't look like
a dump. This may have been a vacc>
May 22 15:55:03 zen systemd-coredump[31631]: Removed old coredump
core.drkonqi-coredum.1000.086484c7f1d9470a936d>
May 22 15:55:03 zen systemd-coredump[31634]: Removed old coredump
core.drkonqi-coredum.1000.086484c7f1d9470a936d>
May 22 15:55:03 zen systemd-coredump[31633]: [🡕] Process 31498
(drkonqi-coredum) of user 1000 dumped core.
```
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