X2Go Bug report logs - #516
X2go successfully connects to server, but no window is shown

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Package: nxagent; Maintainer for nxagent is X2Go Developers <x2go-dev@lists.x2go.org>; Source for nxagent is src:nx-libs.

Reported by: sebastien chabrolles <s.chabrolles@fr.ibm.com>

Date: Sat, 14 Jun 2014 20:25:03 UTC

Severity: normal

Tags: pending

Found in version 3.5.0.24

Fixed in version 3.5.0.25

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

Bug is archived. No further changes may be made.

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X-Loop: owner@bugs.x2go.org
Subject: Bug#516: [X2Go-Dev] Bug#516: [PATCH 1/5 v2] Create Windows and fix drawing issues on Big Endian 64bit systems
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Date: Sat, 21 Jun 2014 21:23:07 +0000
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From: Mike Gabriel <mike.gabriel@das-netzwerkteam.de>
To: Mihai Moldovan <ionic@ionic.de>
Cc: 516@bugs.x2go.org
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[Message part 1 (text/plain, inline)]
Hi Mihai,

On  Sa 21 Jun 2014 23:12:59 CEST, Mihai Moldovan wrote:

> Multiple endiannes issues were setting incorrect event masks when  
> creating and
> drawing X11 windows.
>
> This time, a smaller integer has been casted to a bigger one and  
> passed to some
> function actually setting its value.
>
> This meant, that garbage from stack was attached to the smaller  
> integer value,
> putting unknown memory into the lower bytes of the bigger integer.
>
> Fix this by creating a big, initialized temporary variable, let the  
> function do
> its magic on that one and pass the value back to the smaller variable -- and
> cross your fingers the smaller variable can hold it without overrunning. (The
> last bit is a design issue we can't really fix and has been around  
> even before
> this patch.)
>
>
> This fixes window creation and redrawing/updating issues on Big Endian 64bit
> systems.

Fixed patch included. However, unfortunately I forgot to rebase before  
pushing...

Mike
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