Hey folks, I've been developing an Rcpp package on my Mac and testing on Mac and Windows. I also have been testing on linux-latest with the standard Github action which runs the CMD check. These passed without any problem until I implemented a test suite (testthat) and increased the test coverage to include additional calls. It turns out that the two main functions (and maybe others) that I wrote cause a segfault on Ubuntu builds. Several versions on Linux are tested and all fail.
It appears to be related to Rcpp so I'm wondering if you've encountered this before and how I might go about finding a solution. I can reproduce the error on a local docker image consistently, but... I don't have the debugging tools I"m used to on MacOS via VS Code to help me step through when the error occurs. And I suspect it has to do with a mismatched library version because the tests pass fine on Windows and MacOS. So not sure if debugging would help much. Is there a known configuration/compiling issue/fix that I could try? Apart from installing a full fledged instance of Ubuntu with VS Code and debugger, is there a way I can get closer to finding out what the issue is? Clip from the failed R error messages when I call shg$runSimFromFixedValues(N, 0, 0, 1940): *** caught segfault *** address (nil), cause 'memory not mapped' Traceback: 1: .External(list(name = "CppMethod__invoke_notvoid", address = <pointer: 0x55efab6ef710>, dll = list(name = "Rcpp", path = "/usr/local/lib/R/site-library/Rcpp/libs/Rcpp.so", dynamicLookup = TRUE, handle = <pointer: 0x55efa9b64b30>, info = <pointer: 0x55efaa89aaa0>, forceSymbols = FALSE), numParameters = -1L), <pointer: 0x55efae9ae1f0>, <pointer: 0x55efaf2399d0>, .pointer, ...) 2: shg$runSimFromFixedValues(N, 0, 0, 1940) Thanks, -John John Clarke | Senior Technical Advisor | Cornerstone Systems Northwest | john.cla...@cornerstonenw.com
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