Darshan version 3.1.2 is a point release meant to address a bug in versions 3.1.0 and 3.1.1 that can cause crashes in applications (or other binaries) when LD_PRELOADing the Darshan library. The bug was caused by an error in the resolution of the address of the fopen64 function call, so any binary that calls this function is affected. This bug does not affect Darshan’s methods for instrumenting statically-linked executables.
The release tarball can be downloaded HERE.
Documentation for this version of Darshan can be found HERE.