Hi Mike,

With Guacamole-server from git no segfault but disconnect immediatly again :


Oct 18 16:19:14 myserver guacd[1221]: Creating new client for protocol "vnc"
Oct 18 16:19:14 myserver guacd[1221]: Connection ID is 
"$15723cca-0800-466d-ad6d-3533088bcd52"
Oct 18 16:19:14 myserver guacd[1499]: Cursor rendering: local
Oct 18 16:19:14 myserver guacd[1499]: User 
"@f9cd8100-752c-49f9-8530-9977008c2e9b" joined connection 
"$15723cca-0800-466d-ad6d-3533088bcd52" (1 users now present)
Oct 18 16:19:14 myserver guacd[1499]: VNC server supports protocol version 3.8 
(viewer 3.8)
Oct 18 16:19:14 myserver guacd[1499]: We have 2 security types to read
Oct 18 16:19:14 myserver guacd[1499]: 0) Received security type 2
Oct 18 16:19:14 myserver guacd[1499]: Selecting security type 2 (0/2 in the 
list)
Oct 18 16:19:14 myserver guacd[1499]: 1) Received security type 16
Oct 18 16:19:14 myserver guacd[1499]: Selected Security Scheme 2
Oct 18 16:19:14 myserver guacd[1499]: VNC authentication succeeded
Oct 18 16:19:14 myserver guacd[1499]: Desktop name "abc6xx"
Oct 18 16:19:14 myserver guacd[1499]: Connected to VNC server, using protocol 
version 3.8
Oct 18 16:19:14 myserver guacd[1499]: VNC server default format:
Oct 18 16:19:14 myserver guacd[1499]:   32 bits per pixel.
Oct 18 16:19:14 myserver guacd[1499]:   Least significant byte first in each 
pixel.
Oct 18 16:19:14 myserver guacd[1499]:   TRUE colour: max red 255 green 255 blue 
255, shift red 16 green 8 blue 0
Oct 18 16:19:14 myserver guacd[1499]: Got new framebuffer size: 1920x1080
Oct 18 16:19:14 myserver guacd[1499]: User 
"@f9cd8100-752c-49f9-8530-9977008c2e9b" disconnected (0 users remain)
Oct 18 16:19:14 myserver guacd[1499]: Last user of connection 
"$15723cca-0800-466d-ad6d-3533088bcd52" disconnected
Oct 18 16:19:14 myserver guacd[1499]: Internal VNC client disconnected

De : Mike Jumper [mailto:mike.jum...@guac-dev.org]
Envoyé : mardi 18 octobre 2016 01:26
À : user@guacamole.incubator.apache.org
Objet : Re: Guacamole 0.9.9 VNC disconnect immediatly : segfault

On Fri, Oct 14, 2016 at 7:45 AM, Jérémy Thévenin 
<jeremy.theve...@frr.fr<mailto:jeremy.theve...@frr.fr>> wrote:
Hi,

I am not able to use VNC connection with Guacamole 0.9.9. I tested multiple 
Install on VM Centos and Ubuntu without success.
(My last install is on a Ubuntun 16.04 with this script : 
http://chasewright.com/guacamole-with-mysql-on-ubuntu/)
VNC servers are TightVNC or UltaVNC.

Anyway, VNC disconnect immediatly, issue is always a segfault, check out my 
syslog :


Protocol "vnc" selected
Oct 14 15:26:09 myserver guacd[9572]: Connection ID is 
"$de03be85-61cf-426d-be73-81230b8a2cc5"
Oct 14 15:26:09 myserver guacd[9572]: VNC server supports protocol version 3.8 
(viewer 3.8)
Oct 14 15:26:09 myserver guacd[9572]: We have 2 security types to read
Oct 14 15:26:09 myserver guacd[9572]: 0) Received security type 2
Oct 14 15:26:09 myserver guacd[9572]: Selecting security type 2 (0/2 in the 
list)
Oct 14 15:26:09 myserver guacd[9572]: 1) Received security type 16
Oct 14 15:26:09 myserver guacd[9572]: Selected Security Scheme 2
Oct 14 15:26:09 myserver guacd[9572]: VNC authentication succeeded
Oct 14 15:26:09 myserver guacd[9572]: Desktop name "wks001"
Oct 14 15:26:09 myserver guacd[9572]: Connected to VNC server, using protocol 
version 3.8
Oct 14 15:26:09 myserver guacd[9572]: VNC server default format:
Oct 14 15:26:09 myserver guacd[9572]:   32 bits per pixel.
Oct 14 15:26:09 myserver guacd[9572]:   Least significant byte first in each 
pixel.
Oct 14 15:26:09 myserver guacd[9572]:   TRUE colour: max red 255 green 255 blue 
255, shift red 16 green 8 blue 0
Oct 14 15:26:09 myserver guacd[9572]: Starting client
Oct 14 15:26:09 myserver guacd[9572]: Got new framebuffer size: 1920x1080
Oct 14 15:26:10 myserver guacd[9572]: Client disconnected
Oct 14 15:26:10 myserver kernel: [ 3848.748953] guacd[9572]: segfault at 78 ip 
00007f77ae1f7309 sp 00007ffd6061ec00 error 4 in 
libguac-client-vnc.so.0.0.0[7f77ae1ec000+f000]

If anyone can help me .. I wish really push Guacamole in my enterprise …

Hi Jérémy,

Can you confirm whether this segfault still occurs with a copy of 
guacamole-server built from recent git?

https://github.com/apache/incubator-guacamole-server

Thanks,

- Mike

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