Sorry for the version mess; here are the versions I've got installed and on which I can reproduce the core dump:
C:\>R --version R version 3.2.5 (2016-04-14) Platform: x86_64-w64-mingw32/x64 (64-bit) Running under: Windows 7 x64 (build 7601) Service Pack 1 C:\>R --version R version 3.3.0 RC (2016-04-28 r70564) -- "Supposedly Educational" Copyright (C) 2016 The R Foundation for Statistical Computing Platform: x86_64-w64-mingw32/x64 (64-bit) C:\>R --version R Under development (unstable) (2016-04-29 r70564) -- "Unsuffered Consequences" Copyright (C) 2016 The R Foundation for Statistical Computing Platform: x86_64-w64-mingw32/x64 (64-bit) /Henrik On Sun, May 1, 2016 at 7:08 PM, Henrik Bengtsson <henrik.bengts...@gmail.com> wrote: > The following core dumps R 3.2.5, R 3.3.0 RC and R devel on Windows. > I have tried to use a minimal setup (for all versions tested), i.e. > > C:\> cd C:\ > C:\> set PATH=C:\PROGRA~1\R\R-33~1.0RC\bin > C:\> set R_DEFAULT_PACKAGES=base > > C:\> R --quiet --vanilla >> close(fifo("foo.tmp", open="wb")) > [core dump] > > > C:\> R --quiet --vanilla >> con <- fifo('foo.tmp', open='wb') >> print(con) > description class mode text opened can read > "\v" "fifo" "wb" "text" "opened" "no" > can write > "yes" >> close(con) > > > C:\>R --quiet --vanilla -e "close(fifo('foo.tmp', open='wb'))" >> close(fifo('foo.tmp', open='wb')) > [core dump] > > > C:\>R --quiet --vanilla -e "fh <- fifo('foo.tmp', open='wb'); > print(fh); close(fh)" >> fh <- fifo('foo.tmp', open='wb'); print(fh); close(fh) > description class mode text opened can read > "\016" "fifo" "wb" "text" "opened" "no" > can write > "yes" > [core dump] > > C:\>R --quiet --vanilla -e "fifo('foo.tmp', open='wb'); closeAllConnections()" >> fifo('foo.tmp', open='wb'); closeAllConnections() > description class mode text opened can read > "\016" "fifo" "wb" "text" "opened" "no" > can write > "yes" > [core dump] > > C:\>Rscript --vanilla -e "close(fifo('foo.tmp', open='wb'))" > [core dump] > > C:\> Rscript --vanilla -e "con <- fifo('foo.tmp', open='wb'); > print(con); close(con)" > description class mode text opened can read > "\f" "fifo" "wb" "text" "opened" "no" > can write > "yes" > [core dump] > > > I doesn't core dump every time, but quite often. When I get it to core > dump ones I can often repeat it several times. And when it doesn't > core dump, it seems to work for quite a while. > > Note the random values of the `description` when it core dumps > (spurious memory mapping?). These are reproducible between core dumps > and I even seen then across different cmd.exe sessions. When it does > *not* core dump, I typically see "foo.tmp" (as expected), but I've > also seen "con" (sic!). > > > I've got it to core dump with the following versions of R: > > C:\>Rscript -e "utils::sessionInfo()" > R version 3.2.5 (2016-04-14) > Platform: x86_64-w64-mingw32/x64 (64-bit) > Running under: Windows 7 x64 (build 7601) Service Pack 1 > > C:\>R --version > R version 3.3.0 RC (2016-04-28 r70564) -- "Supposedly Educational" > Copyright (C) 2016 The R Foundation for Statistical Computing > Platform: x86_64-w64-mingw32/x64 (64-bit) > > all with session info: > > C:\>Rscript --vanilla -e "utils::sessionInfo()" > R version { version } > Platform: x86_64-w64-mingw32/x64 (64-bit) > Running under: Windows 7 x64 (build 7601) Service Pack 1 > > locale: > [1] LC_COLLATE=English_United States.1252 > [2] LC_CTYPE=English_United States.1252 > [3] LC_MONETARY=English_United States.1252 > [4] LC_NUMERIC=C > [5] LC_TIME=English_United States.1252 > > attached base packages: > [1] base > > loaded via a namespace (and not attached): > [1] utils_3.3.0 > > > > Can some else reproduce this? I'd be happy to do a formal bug report. > > > Thanks > > Henrik ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel