[ROOT] A problem about TProfle

From: Cheng Yunhua (chengyh@iopp.ccnu.edu.cn)
Date: Thu Oct 10 2002 - 03:29:42 MEST


hi,
  My ROOT version infor is------>
  QAInfo:You are using STAR_LEVEL : new, ROOT_LEVEL : 3.02.07

  now,I am confronted with a strange problem as blow,
  I drew some TProfiles and saved them in a root file.But every time I 
  open it using TFile,there would be a warning like this----->

WARNING, the StreamerInfo of class TProfile read from file 
/direct/star+u/chengyh/centrality/analysis/result/MC_Tree/5/ptmean.root
        has the same version (=3) as the active class
        but a different checksum.
        You should update the version to ClassDef(TProfile,4).
        Do not try to write objects with the current class definition,
        the files will not be readable.


When I list them and draw one TProfile,it works,but when I draw 
one more  TProfile under the same ROOT session,it fails and gives infor 
as below--->

     *** Break *** segmentation violation
  Root > Function meanptvscent() busy flag cleared

and then stops.

I don't know why,but I guess it is because that the Nents of those 
TProfile  are  very huge.Because I must draw these TProfiles one time,
but it always fails,how can I do then?

You can have a look my macro for drawing,I have inclosed it to you.

 






-- 
Best regards!
Cheng Yunhua
**************************************************************************
* Name:      Cheng Yunhua Major: high energe experiment physics      ***
*--------------------------------------------------------------------**
* Department:Institute of particle physics,Huazhong Normal University***
*--------------------------------------------------------------------****
* Adress:    Institute of particle physics,CCNU,Wuhan,Hubei,PRC.     *****
*--------------------------------------------------------------------******
* ZIP code:  430079       Tel:  027-87673314(O)  027-87340256(D)     *****
*--------------------------------------------------------------------****
* E-mail:    chengyh@iopp.ccnu.edu.cn chengyunhua11@263.net          ***
**************************************************************************






This archive was generated by hypermail 2b29 : Sat Jan 04 2003 - 23:51:13 MET