[R-pkg-devel] dtrti2 error on CRAN checks

[Benjamin Christoffersen]

Dear Sirs,

Since the start of April, I have gotten some errors on the Debian
machines on the check on CRAN for my package dynamichazard. The places
where I get the errors seems to come down to LAPACK's dtrtri routine.
I have tried to reproduce the error on Debian 18.04.2 with clang 8.0.0
but I cannot reproduce them.

The errors came suddenly and the tests passed before. I see similar
issues (I think) in the following package:
 - RcppHMM
 - BNPmix
 - themetagenomics
 - tidytext
 - stm

Any ideas what the error may be? Here is the relevant code parts for
one of the failed tests:
https://github.com/boennecd/dynamichazard/blob/c42105feea5e2d16a8d461b7c606245a743b3e0a/src/for_tests.cpp#L216
https://github.com/boennecd/dynamichazard/blob/c42105feea5e2d16a8d461b7c606245a743b3e0a/src/BLAS_LAPACK/arma_BLAS_LAPACK.cpp#L26
https://github.com/boennecd/dynamichazard/blob/c42105feea5e2d16a8d461b7c606245a743b3e0a/src/BLAS_LAPACK/R_BLAS_LAPACK.cpp#L67

Sincerely yours,
Benjamin