X2Go Bug report logs - #766
Fwd: [Bug 1185552] New: [abrt] nxagent: nxagentDisconnectPicture(): nxagent killed by SIGSEGV

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Message #5 received at submit@bugs.x2go.org (full text, mbox, reply):

From: Orion Poplawski <orion@cora.nwra.com>

To: submit@bugs.x2go.org

Subject: Fwd: [Bug 1185552] New: [abrt] nxagent: nxagentDisconnectPicture(): nxagent killed by SIGSEGV

Date: Sat, 24 Jan 2015 12:21:49 -0700

Package: nx-libs
Version: 3.5.0.28

Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x0000000000493916 in nxagentDisconnectPicture (p0=0x19b1250, 
x1=48234557, p2=p2@entry=0x7fff92ebd2d4) at Render.c:2798
2798	  nxagentPicture(pPicture) = None;

Thread 1 (Thread 0x7fc5d4482740 (LWP 2701)):
#0  0x0000000000493916 in nxagentDisconnectPicture (p0=0x19b1250, 
x1=48234557, p2=p2@entry=0x7fff92ebd2d4) at Render.c:2798
        x1 = 48234557
        p2 = 0x7fff92ebd2d4
        p0 = 0x19b1250
        pPicture = 0x19b1250
        pBool = 0x7fff92ebd2d4


Looks like we may need a check if nxagentPicture(pPicture) is null.


-------- Forwarded Message --------
Subject: [Bug 1185552] New: [abrt] nxagent: nxagentDisconnectPicture(): 
nxagent killed by SIGSEGV
Date: Sat, 24 Jan 2015 15:53:03 +0000
From: bugzilla@redhat.com
To: orion@cora.nwra.com

https://bugzilla.redhat.com/show_bug.cgi?id=1185552

            Bug ID: 1185552
           Summary: [abrt] nxagent: nxagentDisconnectPicture(): nxagent
                    killed by SIGSEGV
           Product: Fedora
           Version: 21
         Component: nx-libs
          Assignee: orion@cora.nwra.com
          Reporter: carlos.em.esteves@gmail.com
        QA Contact: extras-qa@fedoraproject.org
                CC: orion@cora.nwra.com



Description of problem:
MacOSX 10.10 - Maximize Client X2GO...

Version-Release number of selected component:
nxagent-3.5.0.28-1.fc21

Additional info:
reporter:       libreport-2.3.0
backtrace_rating: 4
cmdline:        /usr/lib64/nx/../x2go/bin/x2goagent -extension XFIXES 
-nolisten
tcp -nolisten tcp -dpi 72 -D -auth /home/cesteves/.Xauthority -geometry 
800x600
-name X2GO-cesteves-50-1422109911_stDXFCE_dp32 :50
crash_function: nxagentDisconnectPicture
executable:     /usr/lib64/nx/bin/nxagent
kernel:         3.17.8-300.fc21.x86_64
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 1 (9 frames)
 #0 nxagentDisconnectPicture at Render.c:2798
 #1 FindClientResourcesByType at X/NXresource.c:835
 #2 nxagentDisconnectAllPicture at Render.c:2814
 #3 nxagentDisconnectSession at Reconnect.c:383
 #4 nxagentHandleConnectionStates at Reconnect.c:218
 #5 nxagentWakeupHandler at Handlers.c:589
 #6 WakeupHandler at dixutils.c:472
 #7 WaitForSomething at WaitFor.c:389
 #8 Dispatch at X/NXdispatch.c:619

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Message #10 received at 766@bugs.x2go.org (full text, mbox, reply):

From: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>

To: Orion Poplawski <orion@cora.nwra.com>, 766@bugs.x2go.org

Cc: carlos.em.esteves@gmail.com

Subject: Re: [X2Go-Dev] Bug#766: Fwd: [Bug 1185552] New: [abrt] nxagent: nxagentDisconnectPicture(): nxagent killed by SIGSEGV

Date: Sat, 24 Jan 2015 19:50:27 +0000

[Message part 1 (text/plain, inline)]

Hi Orion, hi Carlos,

On  Sa 24 Jan 2015 20:21:49 CET, Orion Poplawski wrote:

> Package: nx-libs
> Version: 3.5.0.28
>
> Program terminated with signal SIGSEGV, Segmentation fault.
> #0  0x0000000000493916 in nxagentDisconnectPicture (p0=0x19b1250,  
> x1=48234557, p2=p2@entry=0x7fff92ebd2d4) at Render.c:2798
> 2798	  nxagentPicture(pPicture) = None;
>
> Thread 1 (Thread 0x7fc5d4482740 (LWP 2701)):
> #0  0x0000000000493916 in nxagentDisconnectPicture (p0=0x19b1250,  
> x1=48234557, p2=p2@entry=0x7fff92ebd2d4) at Render.c:2798
>         x1 = 48234557
>         p2 = 0x7fff92ebd2d4
>         p0 = 0x19b1250
>         pPicture = 0x19b1250
>         pBool = 0x7fff92ebd2d4
>
>
> Looks like we may need a check if nxagentPicture(pPicture) is null.

It would be good to receive notice from Carlos on how to reproduce  
this issue (a cooking recipe so to say).

Mike (from X2Go upstream)

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