Help for an unclear crash

Dear All I use the following version of ROOT:
ROOT Version: 6.26/04
Built for linuxx8664gcc on Jul 22 2022, 11:36:00
From tags/v6-26-04@v6-26-04
OS: Debian GNU/Linux 11 (bullseye)

At the end of the fitting calculation I obtained the following text:

`
*** Break *** segmentation violation
===========================================================
There was a crash.
This is the entire stack trace of all threads:
===========================================================
#0 0x00007fe16971c706 in __GI___wait4 (pid=19266, stat_loc=stat_loc
entry=0x7ffe39140b28, options=options
entry=0, usage=usage
entry=0x0) at ../sysdeps/unix/sysv/linux/wait4.c:27
#1 0x00007fe16971c6c7 in __GI___waitpid (pid=<optimized out>, stat_loc=stat_loc
entry=0x7ffe39140b28, options=options
entry=0) at waitpid.c:38
#2 0x00007fe16969aaa7 in do_system (line=<optimized out>) at ../sysdeps/posix/system.c:172
#3 0x00007fe169f5fb0c in TUnixSystem::StackTrace() () from /home/d748/Apps/root/root_exec/lib/libCore.so
#4 0x00007fe169f5d1f5 in TUnixSystem::DispatchSignals(ESignals) () from /home/d748/Apps/root/root_exec/lib/libCore.so
#5 <signal handler called>
#6 0x00007fe169b24e11 in PMsr2Data::WriteOutput(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<unsigned int, std::allocator<unsigned int> > const&, bool, unsigned int, bool, unsigned int) const () from /home/d748/Apps/root/root_exec/lib/libPMusr.so.1.3.0
#7 0x000056547d673069 in main ()
===========================================================
The lines below might hint at the cause of the crash.
You may get help by asking at the ROOT forum https://root.cern/forum
Only if you are really convinced it is a bug in ROOT then please submit a
report at https://root.cern/bugs Please post the ENTIRE stack trace
from above as an attachment in addition to anything else
that might help us fixing this issue.
===========================================================
#6 0x00007fe169b24e11 in PMsr2Data::WriteOutput(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::vector<unsigned int, std::allocator<unsigned int> > const&, bool, unsigned int, bool, unsigned int) const () from /home/d748/Apps/root/root_exec/lib/libPMusr.so.1.3.0
#7 0x000056547d673069 in main ()
===========================================================

I do not understand what is wrong. Could someone of the community help me?

thanks a lot

Gian

Do you have a small root macro reproducing this crash ?

unfortunately not :pensive:

That will be difficult to help you without the code producing this crash.

Hi, I found the error: actually there was some corrupted data under fitting that caused the crash.
Thank you anyway
best
gian

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