X2Go Bug report logs - #641
x2goagent crash in XFreeFontPath

Full log

Message #15 received at 641@bugs.x2go.org (full text, mbox, reply):

Received: (at 641) by bugs.x2go.org; 15 May 2015 13:08:27 +0000
From mike.gabriel@das-netzwerkteam.de  Fri May 15 15:08:25 2015
X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on
	ymir.das-netzwerkteam.de
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,URIBL_BLOCKED
	autolearn=ham version=3.3.2
Received: from freya.das-netzwerkteam.de (freya.das-netzwerkteam.de [88.198.48.199])
	by ymir.das-netzwerkteam.de (Postfix) with ESMTPS id 312A75DA82
	for <641@bugs.x2go.org>; Fri, 15 May 2015 15:08:25 +0200 (CEST)
Received: from grimnir.das-netzwerkteam.de (grimnir.das-netzwerkteam.de [78.46.204.98])
	by freya.das-netzwerkteam.de (Postfix) with ESMTPS id 092B1A76;
	Fri, 15 May 2015 15:08:25 +0200 (CEST)
Received: from localhost (localhost [127.0.0.1])
	by grimnir.das-netzwerkteam.de (Postfix) with ESMTP id 983763B980;
	Fri, 15 May 2015 15:08:24 +0200 (CEST)
X-Virus-Scanned: Debian amavisd-new at grimnir.das-netzwerkteam.de
Received: from grimnir.das-netzwerkteam.de ([127.0.0.1])
	by localhost (grimnir.das-netzwerkteam.de [127.0.0.1]) (amavisd-new, port 10024)
	with ESMTP id Mqfd6oNEOXZ6; Fri, 15 May 2015 15:08:24 +0200 (CEST)
Received: from grimnir.das-netzwerkteam.de (localhost [127.0.0.1])
	by grimnir.das-netzwerkteam.de (Postfix) with ESMTPS id 3781A3B961;
	Fri, 15 May 2015 15:08:24 +0200 (CEST)
Received: from m-097.informatik.uni-kiel.de (m-097.informatik.uni-kiel.de
 [134.245.254.97]) by mail.das-netzwerkteam.de (Horde Framework) with HTTP;
 Fri, 15 May 2015 13:08:24 +0000
Date: Fri, 15 May 2015 13:08:24 +0000
Message-ID: <20150515130824.Horde.NQiBMljNMxzeDGAAXKUMhQ1@mail.das-netzwerkteam.de>
From: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
To: Orion Poplawski <orion@cora.nwra.com>, 641@bugs.x2go.org
Subject: Re: [X2Go-Dev] Bug#641: x2goagent crash in XFreeFontPath
In-Reply-To: <543A8FC9.6010202@cora.nwra.com>
User-Agent: Internet Messaging Program (IMP) H5 (6.2.2)
Accept-Language: de,en
Organization: DAS-NETZWERKTEAM
X-Originating-IP: 134.245.254.97
X-Remote-Browser: Mozilla/5.0 (X11; Linux x86_64; rv:32.0) Gecko/20100101
 Firefox/32.0 Iceweasel/32.0
Content-Type: multipart/signed; boundary="=_h1icHNU9Iv1fNCnmgBdOoQ1";
 protocol="application/pgp-signature"; micalg=pgp-sha1
MIME-Version: 1.0

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

Hi Orion,

On  So 12 Okt 2014 16:27:21 CEST, Orion Poplawski wrote:

> Package: nx-libs
> Version: 3.5.0.27
>
> Core was generated by `/usr/lib64/nx/../x2go/bin/x2goagent  
> -extension XFIXES -nolisten tcp -nolisten t'.
> Program terminated with signal SIGABRT, Aborted.
> #0  0x00007f1be42d9877 in raise () from /lib64/libc.so.6
> Missing separate debuginfos, use: debuginfo-install  
> glibc-2.18-16.fc20.x86_64 libX11-1.6.1-1.fc20.x86_64  
> libXau-1.0.8-2.fc20.x86_64 libXcursor-devel-1.1.14-2.fc20.x86_64  
> libXfixes-5.0.1-2.fc20.x86_64 libXrender-0.9.8-2.fc20.x86_64  
> libgcc-4.8.3-7.fc20.x86_64 libjpeg-turbo-1.3.1-2.fc20.x86_64  
> libpng-1.6.6-3.fc20.x86_64 libstdc++-4.8.3-7.fc20.x86_64  
> libxcb-1.9.1-3.fc20.x86_64 libxml2-2.9.1-2.fc20.x86_64  
> sssd-client-1.11.7-2.fc20.x86_64 xz-libs-5.1.2-12alpha.fc20.x86_64  
> zlib-1.2.8-3.fc20.x86_64
> (gdb) bt
> #0  0x00007f1be42d9877 in raise () from /lib64/libc.so.6
> #1  0x00007f1be42daf68 in abort () from /lib64/libc.so.6
> #2  0x00007f1be4319a54 in __libc_message () from /lib64/libc.so.6
> #3  0x00007f1be43203ac in malloc_consolidate () from /lib64/libc.so.6
> #4  0x00007f1be4320c66 in _int_free () from /lib64/libc.so.6
> #5  0x00007f1be6865d8d in XFreeFontPath (list=list@entry=0x57e3980)  
> at GetFPath.c:92
> #6  0x0000000000495789 in nxagentReconnectFailedFonts (p0=<optimized  
> out>) at Font.c:1353
> #7  0x00000000004b8670 in nxagentReconnectSession () at Reconnect.c:482
> #8  0x00000000004b8a3b in nxagentHandleConnectionChanges () at  
> Reconnect.c:827
> #9  0x00000000004b8c60 in nxagentHandleConnectionStates () at Reconnect.c:218
> #10 0x000000000049b905 in nxagentWakeupHandler (data=<optimized  
> out>, count=-1, mask=0xacb760 <LastSelectMask>) at Handlers.c:589
> #11 0x000000000046a33b in WakeupHandler (result=result@entry=-1,  
> pReadmask=pReadmask@entry=0xacb760 <LastSelectMask>) at dixutils.c:472
> #12 0x0000000000473ca2 in WaitForSomething  
> (pClientsReady=pClientsReady@entry=0x7fffb3d56250) at WaitFor.c:389
> #13 0x0000000000445c1a in Dispatch () at X/NXdispatch.c:619
> #14 0x0000000000429455 in main (argc=15, argv=0x7fffb3d56878,  
> envp=<optimized out>) at main.c:450
> (gdb) up 5
> #5  0x00007f1be6865d8d in XFreeFontPath (list=list@entry=0x57e3980)  
> at GetFPath.c:92
> 92                      Xfree ((char *)list);
> (gdb) print list
> $1 = (char **) 0x57e3980
> (gdb) print (char *)list
> $2 = 0x57e3980 "\020\263\201\006"
> (gdb) up
> #6  0x0000000000495789 in nxagentReconnectFailedFonts (p0=<optimized  
> out>) at Font.c:1353
> 1353          XFreeFontPath(fontPaths);
> (gdb) print fontPaths
> $3 = (char **) 0x57e3980
>

Can you reproduce this issue with nx-libs 3.6.x (please build it from source).

In nx-libs we lately dropped nx-X11/lib/font completely and now build  
against the libXfont.so from X.Org. As the issue causing function is a  
libXfont function, I presume this issue to be solved in nx-libs 3.6.x.

Any feedback is highly appreciated.

Mike
-- 

DAS-NETZWERKTEAM
mike gabriel, herweg 7, 24357 fleckeby
fon: +49 (1520) 1976 148

GnuPG Key ID 0x25771B31
mail: mike.gabriel@das-netzwerkteam.de, http://das-netzwerkteam.de

freeBusy:
https://mail.das-netzwerkteam.de/freebusy/m.gabriel%40das-netzwerkteam.de.xfb

[Message part 2 (application/pgp-signature, inline)]

Send a report that this bug log contains spam.