peculiar Crash when calling TProxy::Notify for a TChain on PROOF

Hi,

I try to implement my UserAnalysis with PROOF and automatically generated code by MakeProxy.
I derive my main-class (called "Base") from the automatically generated proxy-Class. It seems to work fine without proof or for just one file. But if I process a TChain with several files, I get a strange crash when initializing the second file. See below.

Any ideas are very welcome. I am using ROOT 5-27/01. Cheers,

    Kathrin

#10 0x00bcedd3 in TClass::RemoveRef (this=0x9f16000, ref=0xa64e13c) at
core/meta/src/TClass.cxx:2711
#11 0x00bd54a7 in TClassRef::~TClassRef (this=0xa64e13c,
__in_chrg=<value optimized out>) at include/TClassRef.h:53
#12 0x0656c6ec in TVirtualCollectionProxy::~TVirtualCollectionProxy
(this=0xa64e138, __in_chrg=<value optimized out>) at include/TVirtualCollectionProxy.h:58
#13 0x01580a5f in ROOT::TBranchProxy::Reset (this=0xa10db40) at
tree/treeplayer/src/TBranchProxy.cxx:113
#14 0x01582d39 in ROOT::Reset (x=0xa10db40) at
tree/treeplayer/src/TBranchProxyDirector.cxx:41
#15 0x01583b4b in

std::for_each<std::_List_iterator<ROOT::TBranchProxy*>, void (*)(ROOT::TBranchProxy*)> (__first=0xa10db40, __last=0xa10dad0,

     __f=0x1582d1c <ROOT::Reset(ROOT::TBranchProxy*)>) at /usr/lib/gcc/i586-redhat-linux/4.4.1/../../../../include/c++/4.4.1/bits/stl_algo.h:4200
#16 0x015835ab in ROOT::TBranchProxyDirector::SetTree (this=0xa10dabc,
newtree=0xa647e28) at tree/treeplayer/src/TBranchProxyDirector.cxx:153
#17 0x025db810 in proxyWD3PD2::Notify (this=0xa10da88) at
/home/stoerig/.proof/packages/Analyzer2/src/proxyWD3PD2.C:35

and this is line 35 of automatic proxyWD3PD2.C:  >> fDirector.SetTree(fChain); << Received on Wed Feb 24 2010 - 23:26:41 CET