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Bug 123 : Values out of range for kmin and kmax in HRFK and FK tools

Status: Solved

geopsy

General information

--FATAL ERROR-

Segmentation fault Signal

2008-05-31 16:43:58.828

main,layerPainter1,

Current thread: 

---- thread main
qtbfkstationsignals.cpp:30
qtbfk.cpp:45
qtbgridsearch.cpp:48
c:/usr/sesarray/include/qtbfkgridsearch.h:30
qtbhrfkloop.cpp:43
qtbhrfkloop.cpp:26
qtbparallelloop.cpp:82
qtbtoolhrfk.cpp:102
qtbgraphcontent.cpp:452
qtbgraphcontent.cpp:382
qtbgraphcontent.cpp:452
qtbgraphcontent.cpp:382
---- thread layerPainter1
qtblayerpainterthread.cpp:39
---- thread




Developer comments (common to all duplicates if any)


Tested various combinations of extreme values for parameters but no crash is reproducible except if kmin is very small and kmax very high

Crash occurred in
void QtbFKStationSignals::initPhaseShifts(int n)
{
  QTB_TRACE;
  delete [] _shift;
  _shift=new QtbComplex [n];
}

So either n was null or _shift was corrupted or deleted elsewhere.
initPhaseShifts(int n) is called by
void QtbGridSearch::setGrid(double minX, double maxX, double dX,
                            double minY, double maxY, double dY)
where minX=-kmax, maxX=kmax, dX=kmin, minY=-kmax, maxY=kmax, dY=kmin
All combinations of kmin, kamx checked but warning from fk toolbox prevent wrong value like kmax=0.

Get the crash for kmin=0.0001 and kmax=1 ==> 20000*20000*8 bytes ==> 2.98 Gb required, should add a check that size of grid cannot exceed 100 Mb, 3620 bins per axis.






Systems and versions


Windows XP

  Qt                  4.3.4
  qtbtools            1.15.0 (200805231045, built key 200805261509)
  geopsycore          3.1.4 (200805231051, built key 200805261509)
  qtbguitools         1.8.2 (200805162004, built key 200805261509)
  scifigs             2.1.4 (200805231046, built key 200805261509)
  geopsygui           2.6.4 (200805231052, built key 200805261509)
  geopsy              2.5.1 (200805162007, built key 200805261509)
  dinvercore          0.7.0 (200805231053, built key 200805261509)
  qtbwave             0.7.1 (200803062243, built key 200805261509)
  qtbwavegui          0.4.1 (200804251855, built key 200805261509)
  dinverdccore        1.3.5 (200805231056, built key 200805261509)
  geopsyarray         2.1.2 (200805162009, built key 200805261509)
  geopsyhv            2.5.4 (200805162010, built key 200805261509)
  structureratios     0.4.2 (200805231057, built key 200805261509)




User reports and comments


1232042008-06-06 15:37:57