Re: [ROOT] click event on a TH2F crashes computer

From: Ozgur COBANOGLU (Ozgur.Cobanoglu@cern.ch)
Date: Fri Apr 11 2003 - 13:04:36 MEST


Hello Rene,
(CERNRedHat7.3.1 and ROOT which is updated from cvs repository several days
ago)
I run the tests and I was succesfull to reproduce the phenomena for
benchmarks.C; it is ok untill I click, when I click on the plot on the canvas
approximately after 20 clicks my computer crashed. The later tests result is
below :

bash-2.05a$ ./stress -b 30
******************************************************************
*  Starting  R O O T - S T R E S S test suite with 30 events
******************************************************************
Test  1 : Functions, Random Numbers, Histogram Fits............. OK
Test  2 : Check size & compression factor of a Root file........ OK
Test  3 : Purge, Reuse of gaps in TFile......................... OK
Test  4 : Test of 2-d histograms, functions, 2-d fits........... OK
Test  5 : Test graphics & Postscript............................ OK
Test  6 : Test subdirectories in a Root file.................... OK
Test  7 : TNtuple, selections, TCut, TCutG, TEventList.......... OK
Test  8 : Trees split and compression modes..................... OK
Test  9 : Analyze Event.root file of stress 8................... OK
Test 10 : Create 10 files starting from Event.root.............. OK
Test 11 : Test chains of Trees using the 10 files............... OK
Test 12 : Compare histograms of test 9 and 11................... OK
Test 13 : Test merging files of a chain......................... OK
Test 14 : Check correct rebuilt of Event.root in test 13........ OK
Test 15 : Divert Tree branches to separate files................ OK
Test 16 : CINT test (3 nested loops) with LHCb trigger.......... OK
******************************************************************
*  Linux pcald29 2.4.18-18.7.x.cern #1 Mon Nov 18 11:16:10 CET
******************************************************************
stress    : Total I/O =   91.3 Mbytes, I =   72.2, O =  19.1
stress    : Compr I/O =   87.8 Mbytes, I =   69.5, O =  18.3
stress    : Real Time =  24.69 seconds Cpu Time =  22.00 seconds
******************************************************************
*  ROOTMARKS = 372.0   *  Root3.05/03   20030409/1348
******************************************************************
bash-2.05a$

Everything looks ok but the "click" event. What does this mean ? am I using
wrong OS or arch. ?
thank you for your interest
oz


Rene Brun wrote:

> Hi Ozgur,
>
> I cannot reproduce this problem.
> Can you run the following tests
>
> cd $ROOTSYS/tutorials
> root benchmarks.C
>
> cd $ROOTSYS/test
> make distclean
> make
> stress -b 30
>
> Rene Brun
>
> Ozgur COBANOGLU wrote:
> >
> > Hello,
> > (CERNRedHat7.3.1 and ROOT which is updated from cvs repository several
> > days ago)
> > I have a strange problem and I'd like to know if someone else has too.
> > I create a canvas and a TH2F on it like that:
> >
> > {
> > TCanvas *c1 = new TCanvas("c1", "c1",600,400);
> > TH2F *padPlane = new TH2F("padPlane","padPlane",128,0,128,4,0,4);
> > padPlane->SetEntries(1);
> > padPlane->Draw("colz");
> > }
> >
> > When the object is drawn on screen I click on the padPlane object and 20
> > per cent my computer crashes; I need to force it reboot, non of the
> > short cuts works. This sensitivity is only for clicking events nothing
> > else. Any ideas ? and is it a posibility that this problem can originate
> > from the OS itself ? I have been using a different Linux OS on a
> > different machine and ROOT was running perfectly, should I change OS or
> > machine again or is this a known thing ?.
> >
> > cheers, oz...
> >
> > --
> > ----------------------------------------------------------------
> > Özgür Çobanoglu
> > ozgur@nucleus.istanbul.edu.tr
> > Ozgur.Cobanoglu@cern.ch

--
______________________________________________________
Özgür Çobanoglu
ozgur@nucleus.istanbul.edu.tr   istanbul Üniversitesi
Ozgur.Cobanoglu@cern.ch         CERN EP



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