Hi,

i rebuilded guacd 0.9.14 ( using my own build debs )

# dpkg -l | grep guac
ii  guacamole                               0.9.14-4                            
        all          HTML5 web application for accessing remote desktops
ii  guacamole-auth-mysql                    0.9.14-1                            
        all          Guacamole Mysql Identification
ii  guacd                                   0.9.14-1                            
        amd64        HTML5 web application for accessing remote desktops (proxy 
daemon)
ii  guacd-dbgsym                            0.9.14-1                            
        amd64        Debug symbols for guacd
ii  libguac-client-rdp0:amd64               0.9.14-1                            
        amd64        HTML5 web application for accessing remote desktops (RDP 
support)
ii  libguac-client-rdp0-dbgsym:amd64        0.9.14-1                            
        amd64        Debug symbols for libguac-client-rdp0
ii  libguac-client-ssh0:amd64               0.9.14-1                            
        amd64        HTML5 web application for accessing remote desktops (SSH 
support)
ii  libguac-client-ssh0-dbgsym:amd64        0.9.14-1                            
        amd64        Debug symbols for libguac-client-ssh0
ii  libguac-client-vnc0:amd64               0.9.14-1                            
        amd64        HTML5 web application for accessing remote desktops (VNC 
support)
ii  libguac-client-vnc0-dbgsym:amd64        0.9.14-1                            
        amd64        Debug symbols for libguac-client-vnc0
ii  libguac-dev:amd64                       0.9.14-1                            
        amd64        Guacamole proxy daemon (core library headers)
ii  libguac11:amd64                         0.9.14-1                            
        amd64        HTML5 web application for accessing remote desktops 
(library)
ii  libguac11-dbgsym:amd64                  0.9.14-1                            
        amd64        Debug symbols for libguac11


Each time i use the vnc plugin i can see a segfault in the logs.

Jun 27 14:48:28 pulsemaster kernel: [712278.556955] guacd[25572]: segfault at 
10 ip 00007f9eaea6f692 sp 00007f9ead477d10 error 4 in 
libguac-client-vnc.so.0.0.0[7f9eaea67000+13000]
Jun 27 14:49:35 pulsemaster kernel: [712345.817333] guacd[25612]: segfault at 
10 ip 00007f9eaea6f692 sp 00007f9eadc78d10 error 4 in 
libguac-client-vnc.so.0.0.0[7f9eaea67000+13000]
Jun 27 14:50:41 pulsemaster kernel: [712412.051393] guacd[25655]: segfault at 
10 ip 00007f9eaea6f692 sp 00007f9eacc76d10 error 4 in 
libguac-client-vnc.so.0.0.0[7f9eaea67000+13000]
Jun 27 14:51:47 pulsemaster kernel: [712477.883688] guacd[25700]: segfault at 
10 ip 00007f9eaea6f692 sp 00007f9ead477d10 error 4 in 
libguac-client-vnc.so.0.0.0[7f9eaea67000+13000]
Jun 27 14:52:54 pulsemaster kernel: [712544.755122] guacd[25746]: segfault at 
10 ip 00007f9eaea6f692 sp 00007f9eadc78d10 error 4 in 
libguac-client-vnc.so.0.0.0[7f9eaea67000+13000]
Jun 27 14:54:03 pulsemaster kernel: [712613.432083] guacd[25794]: segfault at 
10 ip 00007f9eaea6f692 sp 00007f9eacc76d10 error 4 in 
libguac-client-vnc.so.0.0.0[7f9eaea67000+13000]
Jun 27 14:55:08 pulsemaster kernel: [712678.871467] guacd[25836]: segfault at 
10 ip 00007f9eaea6f692 sp 00007f9ead477d10 error 4 in 
libguac-client-vnc.so.0.0.0[7f9eaea67000+13000]
Jun 27 14:55:29 pulsemaster kernel: [712699.432836] guacd[25883]: segfault at 
10 ip 00007f9eaea6f692 sp 00007f9eadc78d10 error 4 in 
libguac-client-vnc.so.0.0.0[7f9eaea67000+13000]
Jun 27 14:57:39 pulsemaster kernel: [712829.633618] guacd[26029]: segfault at 
10 ip 00007f9eaea6f692 sp 00007f9eacc76d10 error 4 in 
libguac-client-vnc.so.0.0.0[7f9eaea67000+13000]
Jun 27 14:58:35 pulsemaster kernel: [712885.994620] guacd[26072]: segfault at 
10 ip 00007f9eaea6f692 sp 00007f9ead477d10 error 4 in 
libguac-client-vnc.so.0.0.0[7f9eaea67000+13000]
Jun 27 14:59:20 pulsemaster kernel: [712931.152907] guacd[26119]: segfault at 
10 ip 00007f9eaea6f692 sp 00007f9eadc78d10 error 4 in 
libguac-client-vnc.so.0.0.0[7f9eaea67000+13000]

I use a debian stretch.
The vnc server is installed on a windows 10 ( TightVNC )

i am sure i use the new guacd and plugins ( as shown in the dpkg command ).

Btw the rdp plugin works 100% of the time

What can i do to help debugging ?

Regards,
Nicolas Lécureuil.

 

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