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Entry  12 Apr 2021, Gennaro Tortone, Forum, rootana and TAnaManager 
    Reply  15 Apr 2021, Thomas Lindner, Forum, rootana and TAnaManager 
       Reply  15 Apr 2021, Gennaro Tortone, Forum, rootana and TAnaManager 
          Reply  20 Apr 2021, Thomas Lindner, Forum, rootana and TAnaManager 
Message ID: 42     Entry time: 15 Apr 2021     In reply to: 41     Reply to this: 43
Author: Gennaro Tortone 
Topic: Forum 
Subject: rootana and TAnaManager 
Hi,

thanks for your support,

I realized that this issue is related to GCC/G++ version...
it seems that GCC 8.3 has this "segmentation violation" problem;

I have replaced default Debian GCC (8.3) with testing GCC 10 and
everything works !

Now I'm using a Xubuntu 20.04 LTS (GCC 9) and also here the problem
is not present...

Regards,
Gennaro

> Hi,
> 
> Hmm, unfortunately I cannot produce your seg fault.  I run the command 
> 
> ./root_server.exe 
> 
> and it runs without a seg-fault.  I can run it with the following combinations:
> 
> 1) Centos-7.7 with ROOT 6.18
> 2) Ubuntu 20.04.2 with ROOT 6.22/02
> 
> Note that I don't think 'root_server.exe -v' is a valid option.
> 
> I will try to make a ROOT 6.22/06 version sometime, but it seems surprising that that is the problem.  This ROOT 
> application stuff is annoying and I will try to remove it soon.
> 
> I do get the same annoying Cling errors as you.  They are annoying, but seem to be benign.
> 
> Cheers,
> Thomas
> 
> 
> 
> > Hi,
> > 
> > I'm facing with a strange problem with rootana:
> > I fetched and built rootana (master branch) as usual (make / make install);
> > 
> > If I build 'examples' and launch:
> > 
> > ./root_server.exe -v
> > 
> > I got a lot of this messages:
> > 
> > Info in <TCling::LoadPCM>: In-memory ROOT PCM candidate /opt/root/lib/.....
> > 
> > and at the end:
> > 
> > 
> >  *** Break *** segmentation violation
> >  Generating stack trace...
> >  0x00007f9a876a7df1 in ROOT::AddClassAlternate(char const*, char const*) + 0x31 
> > from /opt/root/lib/root/libCore.so
> >  0x0000557debfea956 in <unknown> from ./root_server.exe
> >  0x0000557debfead72 in <unknown> from ./root_server.exe
> >  0x0000557debfead9b in <unknown> from ./root_server.exe
> >  0x0000557dec034605 in __libc_csu_init + 0x45 from ./root_server.exe
> >  0x00007f9a856e802a in __libc_start_main + 0x7a from /lib/x86_64-linux-
> > gnu/libc.so.6
> >  0x0000557debf759fa in _start + 0x2a from ./root_server.exe
> > 
> > 
> > I'm using ROOT 6.22/06 compiled from source files on Debian 10 on a virtual
> > machine...
> > 
> > The problem seems to be less critical if I connect with SSH with -XC option
> > or if I set DISPLAY variable. In these case I got only TCling messages with
> > this warning:
> > 
> > Error in <TGClient::TGClient>: can't open display "0:0", switching to batch 
> > mode...
> >  In case you run from a remote ssh session, reconnect with ssh -Y
> > 
> > If I build manalyzer everything goes fine and it seems that problem is
> > related to TAnaManager in some ways...
> > 
> > Regards,
> > Gennaro
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