[Rcpp-devel] [Segfault Reason] Beginner Question: Same code *sometimes* fails due to segfault sometimes

romain at r-enthusiasts.com romain at r-enthusiasts.com
Fri May 20 10:05:32 CEST 2011


Thanks for your interest in Rcpp and your kind words. 

Please send some reproducible example. Without this, there is not much we can do to help. 


Le 20 mai 2011 à 09:59, Sunny Srivastava <research.baba at gmail.com> a écrit :

> Hi Rcpp-users:
> I am a very happy user of Rcpp. I am a statistician who can code a bit. Recently, I have been working on making my cross validation code run faster using Rcpp.
> I have a question and wanted to check if others have faced similar problems.
> My code sometimes fails with a segmentation fault error, however this behavior cannot be replicated. That is, most of the times it runs fine and gives appropriate results, but once in a while it will fail due to segmentation fault and gives error like -- 
>  *** caught segfault ***
> address 0x18, cause 'memory not mapped'
> I don't think this is normal, but how can it give correct answers when it runs correctly. Any ideas?
> I would be happy to share code, but I wanted to see if I am missing something here. (I have limited experience as a C++ programmer.) 
> Thanks in advance for your help.
> Best Regards,
> S.
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