Bug 412772

Summary:	KRDC crashes when it tries to connect to tigervnc server
Product:	[Applications] krdc	Reporter:	Raul <1000.ontheroad>
Component:	general	Assignee:	Urs Wolfer <uwolfer>
Status:	RESOLVED DUPLICATE
Severity:	crash	Keywords:	drkonqi
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	Compiled Sources
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Raul 2019-10-09 16:07:10 UTC

Application: krdc (19.04.3)
 (Compiled from sources)
Qt Version: 5.12.3
Frameworks Version: 5.60.0
Operating System: Linux 4.19.72-gentoo x86_64
Distribution (Platform): Gentoo Packages

-- Information about the crash:
Got this "server 1", a new Arch Linux instalation. I've installed *tigervnc* server and run it the simplest way:
vncserver :1
Once entered a password, server creates default files into ~/.vnc and starts listening.

From "client 1", Gentoo Linux, I start KRDC client and try to connect to "server 1". It pops-up the usual dialog inviting me to enter network quality, save to Wallet, etc. When I finish, application crashes.

The same KRDC client works fine connecting with "server 2", a Debian installation. But its VNC server is *tightvncserver*.

Using Vinagre client in "client 1", it connects to "server 1" without issues.

I can attach the compile log if it's needed.

The crash can be reproduced every time.

-- Backtrace:
Application: KRDC (krdc), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f655b731780 (LWP 9263))]

Thread 16 (Thread 0x7f64f3fff700 (LWP 9837)):
[KCrash Handler]
#6  0x00007f6552208662 in  () at /usr/lib64/libvncclient.so.1
#7  0x00007f6552208e3e in HandleVeNCryptAuth () at /usr/lib64/libvncclient.so.1
#8  0x00007f6552203da8 in InitialiseRFBConnection () at /usr/lib64/libvncclient.so.1
#9  0x00007f65522067f8 in rfbInitClient () at /usr/lib64/libvncclient.so.1
#10 0x00007f6558025077 in  () at /usr/lib64/qt5/plugins/krdc/libkrdc_vncplugin.so
#11 0x00007f655802589d in  () at /usr/lib64/qt5/plugins/krdc/libkrdc_vncplugin.so
#12 0x00007f65622c5c71 in  () at /usr/lib64/libQt5Core.so.5
#13 0x00007f6560a42508 in start_thread () at /lib64/libpthread.so.0
#14 0x00007f6561f31bff in clone () at /lib64/libc.so.6

Thread 15 (Thread 0x7f6513fff700 (LWP 9277)):
#0  0x00007f6560a4939c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f6551607f8b in  () at /usr/lib64/dri/radeonsi_dri.so
#2  0x00007f6551607ba7 in  () at /usr/lib64/dri/radeonsi_dri.so
#3  0x00007f6560a42508 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f6561f31bff in clone () at /lib64/libc.so.6

Thread 14 (Thread 0x7f6538ff9700 (LWP 9276)):
#0  0x00007f6560a4939c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f6551607f8b in  () at /usr/lib64/dri/radeonsi_dri.so
#2  0x00007f6551607ba7 in  () at /usr/lib64/dri/radeonsi_dri.so
#3  0x00007f6560a42508 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f6561f31bff in clone () at /lib64/libc.so.6

Thread 13 (Thread 0x7f65397fa700 (LWP 9275)):
#0  0x00007f6560a4939c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f6551607f8b in  () at /usr/lib64/dri/radeonsi_dri.so
#2  0x00007f6551607ba7 in  () at /usr/lib64/dri/radeonsi_dri.so
#3  0x00007f6560a42508 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f6561f31bff in clone () at /lib64/libc.so.6

Thread 12 (Thread 0x7f6539ffb700 (LWP 9274)):
#0  0x00007f6560a4939c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f6551607f8b in  () at /usr/lib64/dri/radeonsi_dri.so
#2  0x00007f6551607ba7 in  () at /usr/lib64/dri/radeonsi_dri.so
#3  0x00007f6560a42508 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f6561f31bff in clone () at /lib64/libc.so.6

Thread 11 (Thread 0x7f653a7fc700 (LWP 9273)):
#0  0x00007f6560a4939c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f6551607f8b in  () at /usr/lib64/dri/radeonsi_dri.so
#2  0x00007f6551607ba7 in  () at /usr/lib64/dri/radeonsi_dri.so
#3  0x00007f6560a42508 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f6561f31bff in clone () at /lib64/libc.so.6

Thread 10 (Thread 0x7f653affd700 (LWP 9272)):
#0  0x00007f6560a4939c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f6551607f8b in  () at /usr/lib64/dri/radeonsi_dri.so
#2  0x00007f6551607ba7 in  () at /usr/lib64/dri/radeonsi_dri.so
#3  0x00007f6560a42508 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f6561f31bff in clone () at /lib64/libc.so.6

Thread 9 (Thread 0x7f653b7fe700 (LWP 9271)):
#0  0x00007f6560a4939c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f6551607f8b in  () at /usr/lib64/dri/radeonsi_dri.so
#2  0x00007f6551607ba7 in  () at /usr/lib64/dri/radeonsi_dri.so
#3  0x00007f6560a42508 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f6561f31bff in clone () at /lib64/libc.so.6

Thread 8 (Thread 0x7f653bfff700 (LWP 9270)):
#0  0x00007f6560a4939c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f6551607f8b in  () at /usr/lib64/dri/radeonsi_dri.so
#2  0x00007f6551607ba7 in  () at /usr/lib64/dri/radeonsi_dri.so
#3  0x00007f6560a42508 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f6561f31bff in clone () at /lib64/libc.so.6

Thread 7 (Thread 0x7f654881a700 (LWP 9269)):
#0  0x00007f6560a4939c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f6551607f8b in  () at /usr/lib64/dri/radeonsi_dri.so
#2  0x00007f6551607ba7 in  () at /usr/lib64/dri/radeonsi_dri.so
#3  0x00007f6560a42508 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f6561f31bff in clone () at /lib64/libc.so.6

Thread 6 (Thread 0x7f654901b700 (LWP 9268)):
#0  0x00007f6560a4939c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f6551607f8b in  () at /usr/lib64/dri/radeonsi_dri.so
#2  0x00007f6551607ba7 in  () at /usr/lib64/dri/radeonsi_dri.so
#3  0x00007f6560a42508 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f6561f31bff in clone () at /lib64/libc.so.6

Thread 5 (Thread 0x7f654981c700 (LWP 9267)):
#0  0x00007f6560a4939c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f6551607f8b in  () at /usr/lib64/dri/radeonsi_dri.so
#2  0x00007f6551607ba7 in  () at /usr/lib64/dri/radeonsi_dri.so
#3  0x00007f6560a42508 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f6561f31bff in clone () at /lib64/libc.so.6

Thread 4 (Thread 0x7f654a176700 (LWP 9266)):
#0  0x00007f6560a4939c in pthread_cond_wait@@GLIBC_2.3.2 () at /lib64/libpthread.so.0
#1  0x00007f6551607f8b in  () at /usr/lib64/dri/radeonsi_dri.so
#2  0x00007f6551607ba7 in  () at /usr/lib64/dri/radeonsi_dri.so
#3  0x00007f6560a42508 in start_thread () at /lib64/libpthread.so.0
#4  0x00007f6561f31bff in clone () at /lib64/libc.so.6

Thread 3 (Thread 0x7f65535ca700 (LWP 9265)):
#0  0x00007f6561f20e28 in read () at /lib64/libc.so.6
#1  0x00007f655fd2b700 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f655fce1c7f in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f655fce2180 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f655fce22fc in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f65624b0dab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f656245c6bb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007f65622c49e6 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x00007f656134a5a5 in  () at /usr/lib64/libQt5DBus.so.5
#9  0x00007f65622c5c71 in  () at /usr/lib64/libQt5Core.so.5
#10 0x00007f6560a42508 in start_thread () at /lib64/libpthread.so.0
#11 0x00007f6561f31bff in clone () at /lib64/libc.so.6

Thread 2 (Thread 0x7f65591aa700 (LWP 9264)):
#0  0x00007f6561f256eb in poll () at /lib64/libc.so.6
#1  0x00007f655f63d80f in  () at /usr/lib64/libxcb.so.1
#2  0x00007f655f63f4ca in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3  0x00007f655b13f1b8 in  () at /usr/lib64/libQt5XcbQpa.so.5
#4  0x00007f65622c5c71 in  () at /usr/lib64/libQt5Core.so.5
#5  0x00007f6560a42508 in start_thread () at /lib64/libpthread.so.0
#6  0x00007f6561f31bff in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f655b731780 (LWP 9263)):
#0  0x00007f6561f20e28 in read () at /lib64/libc.so.6
#1  0x00007f655fd2b700 in  () at /usr/lib64/libglib-2.0.so.0
#2  0x00007f655fce1c7f in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#3  0x00007f655fce2180 in  () at /usr/lib64/libglib-2.0.so.0
#4  0x00007f655fce22fc in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#5  0x00007f65624b0dab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#6  0x00007f656245c6bb in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQt5Core.so.5
#7  0x00007f65624646df in QCoreApplication::exec() () at /usr/lib64/libQt5Core.so.5
#8  0x0000558becda3e10 in  ()
#9  0x00007f6561e4aecb in __libc_start_main () at /lib64/libc.so.6
#10 0x0000558becda430a in _start ()
[Inferior 1 (process 9263) detached]

Reported using DrKonqi

Comment 1 Christoph Feck 2019-10-24 12:37:39 UTC

Why is your system even older than that of the reporter of bug 411680? You should update more frequently.

*** This bug has been marked as a duplicate of bug 411680 ***