[Kst] Segmentation fault / kst2 startup

[Peter Kümmel]

Brisset, Nicolas wrote:
> Hi,
> 
>  
> 
> I don't exactly know why but on two very different Linux machines
> (openSuse 11.2 64 and Suse 10.0 both 64 bits, both Qt 4.5.3) I get a
> crash on startup with the latest kst2 trunk.
> 
> I don't even get to see the main window :-(
> 
> I tried going back in time (and doing a clean build at each step
> otherwise I was seeing strange things) and the commit that breaks things
> seems to be #1054888 (the big update commit)...
> 
>  
> 
> Below is a backtrace:
> 
>  
> 
> Program received signal SIGSEGV, Segmentation fault.
> 
> [Switching to Thread 46912585764608 (LWP 31424)]
> 
> 0x00000000006d0060 in ?? ()
> 
> (gdb) where
> 
> #0  0x00000000006d0060 in ?? ()
> 
> #1  0x00002aaaaac28649 in KstReadLocker (this=0x7fffffc8fb00,
> l=0x6ce700) at rwlock.h:68
> 
> #2  0x00002aaaaac275ae in Kst::ObjectStore::dataSourceList
> (this=0x6ce700) at objectstore.cpp:216
> 
> #3  0x00002aaaaac30f8f in Kst::UpdateManager::doUpdates (this=0x68b400,
> forceImmediate=true) at updatemanager.cpp:97
> 
> #4  0x00002aaaab268de0 in Kst::CommandLineParser::processCommandLine
> (this=0x7fffffc902d0, ok=0x7fffffc9027e) at commandlineparser.cpp:549
> 
> #5  0x00002aaaab2acf94 in Kst::Document::initFromCommandLine
> (this=0x69f660, P=0x7fffffc902d0) at document.cpp:135
> 
> #6  0x00002aaaab31834d in Kst::MainWindow::initFromCommandLine
> (this=0x6ccbb0) at mainwindow.cpp:235
> 
> #7  0x0000000000400d9a in main (argc=1, argv=0x7fffffc904e8) at
> main.cpp:19

This looks similar to the crash on exit where the it also happens
in objectstore code and a rwlocker isn't valid.

Peter

> 
> Does anyone else also see that? It makes working with kst2 pretty
> impracticable!
> 
>  
> 
> Nicolas 
> 
>  
> 
> 
> 
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