On Wed, 2020-02-05 at 19:30 +0100, JVApen wrote: > Hey Kyle, > > This is a bug in your code, if you have a context switch after the > creation of the thread on an overloaded system, the close of the pipe > can be closed while writing or even before it. > > Timing ain't a good way to synchronize threads. TSan is correct in > flagging this occurrence.
JVApen, Thanks for the response. I don't doubt that TSAN is correct. The problem is that this isn't my code. It's from OpenMPI, and fixing OpenMPI is beyond the scope of my work. I am attempting to build OpenMPI with TSAN enabled, so that applications that use it don't get false positives due to libraries built without TSAN, while silencing issues that might be present within OpenMPI itself. In this case, the error is coming from mpiexec, which exists as a completely separate process from my application. So, I am aware that this is probably an error in mpiexec, but would like to silence it anyway, and I can't seem to do that. In other words, this isn't a problem with TSAN yielding a false positive, but yielding an error with no way for me to silence it. Kyle _______________________________________________ cfe-users mailing list cfe-users@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users
