[Rivet] bug

[Frank Krauss]

Dear All,
as Holger already knows, there are more and more bugs cropping up in 
Rivet + Yoda.
They manifest themselves as


Sherpa: 
/home/krauss/rivetinstall/local/include/boost/smart_ptr/shared_ptr.hpp:653: 
typename boost::detail::sp_member_access<T>::type 
boost::shared_ptr<T>::operator->() const [with T = YODA::Histo1D, 
typename boost::detail::sp_member_access<T>::type = YODA::Histo1D*]: 
Assertion `px != 0' failed.

Exception_Handler::SignalHandler: Signal (6) caught.
    Cannot continue.
Exception_Handler::GenerateStackTrace(..): Generating stack trace
{
   0x7fb8d9ec54f5  in 'gsignal' (raise.c:64)
   0x7fb8d9ec8c5b  in 'abort' (abort.c:93)
   0x7fb8d680fe61  in 'Rivet::CMS_2010_S8547297::analyze(Rivet::Event 
const&)'
   0x7fb8d8af09d0  in 'Rivet::AnalysisHandler::analyze(HepMC::GenEvent 
const&)'
   0x7fb8d8dacb1c  in 'Rivet_Interface::Run(ATOOLS::Blob_List*)' 
(basic_string.h:288)
   0x7fb8dc031bef  in 'SHERPA::Analysis_Phase::Treat(ATOOLS::Blob_List*, 
double&)' (Analysis_Phase.C:66)
   0x7fb8dc00d2c3  in 'SHERPA::Event_Handler::AnalyseEvent(double&)' 
(Event_Handler.C:145)
   0x7fb8dc011b57  in 
'SHERPA::Event_Handler::GenerateMinimumBiasEvent(SHERPA::eventtype::code&)' 
(Event_Handler.C:329)
   0x7fb8dc012bf5  in 
'SHERPA::Event_Handler::GenerateEvent(SHERPA::eventtype::code)' 
(Event_Handler.C:127)
   0x7fb8e67dfc7b  in 'SHERPA::Sherpa::GenerateOneEvent(bool)' 
(Sherpa.C:197)
   0x402177        in 'main' (Main.C:37)
}


So, apparently, your ** new ** ** default ** 2.0.0 which I accessed 
through the bootstrap script by now has some interesting behaviour. 
Before that, there have already been little nuisances, like double 
analyses warnings etc., but no outright crashes.  I seriously suggest 
you try to fix this and do some minor testing next time, before rolling 
out new versions.

Best wishes
    Frank

-- 
======================
Professor Frank Krauss
IPPP
Durham University

+44 191 33 43751
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