[Interest] Certain QTextCodecs causing crashes on Linux

[Karl Ruetz]

Are you using Ubuntu by any chance? We had a similar problem last
year but it was unrelated to Qt. If you tried to do several consecutive
searches in a web browser on Ubuntu using the French language, this
exact error would get sent to standard error and the browser would
crash. 

Applying this patch fixed it:
https://bugzilla.gnome.org/show_bug.cgi?id=670586 

I believe some
people reported a similar problem on Debian that was fixed with the same
patch. 

I have no idea if this would apply to this situation or not. I
just remembered seeing the exact same error message away from Qt. 

Karl


On 2013-07-31 10:44, Scott Aron Bloom wrote: 

> Ran into a weird
situation.. I have to allow my customer to set the System Codec so when
they load a file, it loads correctly. 
> 
> However, in QA'ing the code,
certain Text Codecs are causing a crash in QMessageBox (and presumably
other widgets). 
> 
> 6 int main( int argc, char ** argv ) 
> 
> 7 { 
>

> 8 QApplication appl( argc, argv ); 
> 
> 9 QString codecName =
"UTF-8"; 
> 
> 10 if ( argc > 1 ) 
> 
> 11 codecName = argv[ 1 ]; 
> 
>
12 
> 
> 13 QTextCodec * codec = QTextCodec::codecForName(
codecName.toAscii() ); 
> 
> 14 if ( !codec ) 
> 
> 15 { 
> 
> 16
QMessageBox::warning( NULL, argv[ 0 ], QString( "%1 not found" ).arg(
codecName ) ); 
> 
> 17 return 1; 
> 
> 18 } 
> 
> 19 
> 
> 20
QTextCodec::setCodecForLocale( codec ); 
> 
> 21 QMessageBox::warning(
NULL, argv[ 0 ], codecName ); 
> 
> 22 return 0; 
> 
> 23 } 
> 
> When
called with UTF-32 I get the following crash: 
> 
> [scott at localhost
build]$ ./CodecTest UTF-32 
> 
> ** 
> 
>
GConf:ERROR:gconf-client.c:2021:gconf_client_lookup: assertion failed:
(last_slash != NULL) 
> 
> Aborted (core dumped) 
> 
> This is with Qt
4.7.4. 
> 
> Any Ideas? 
> 
> Thanks 
> 
> Scott 
> 
>
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list
> Interest at qt-project.org
>
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