It is intermittent on both my systems.
Rob
On Sep 8, 2011, at 8:00 AM, luke-tier...@uiowa.edu wrote:
> On Thu, 8 Sep 2011, Martin Maechler wrote:
>
>>>>>>> Simon Urbanek <simon.urba...@r-project.org>
>>>>>>> on Thu, 8 Sep 2011 09:33:23 -0400 writes:
>>
>> > On Sep 8, 2011, at 4:01 AM, Martin Maechler wrote:
>>
>> >>>>>>> David Winsemius <dwinsem...@comcast.net>
>> >>>>>>> on Tue, 6 Sep 2011 00:38:13 -0400 writes:
>> >>
>> >>> I can reproduce:
>> >>> eigen(crossprod(matrix(1:2000, 50)) + (0+0i), T, T)
>> >>
>> >>> *** caught segfault ***
>> >>> address 0x102d0e028, cause 'memory not mapped'
>> >>
>> >>> Traceback:
>> >>> 1: .Call("La_rs_cmplx", x, only.values, PACKAGE = "base")
>> >>> 2: eigen(crossprod(matrix(1:2000, 50)) + (0 + (0+0i)), T, T)
>> >>> ##---- after restart
>> >>>> sessionInfo()
>> >>> R version 2.13.1 (2011-07-08)
>> >>> Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)
>> >>
>> >>> locale:
>> >>> [1] en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8
>> >>
>> >>> attached base packages:
>> >>> [1] stats graphics grDevices utils datasets methods base
>> >>
>> >>> With OSX 10.5.8
>> >>
>> >>> Also happens with 32 bit R
>> >>> [R.app GUI 1.41 (5874) i386-apple-darwin9.8.0]
>> >>
>> >> It does not happen on Linux (different versions)
>> >> nor Windows (2.13.1 patched, early August).
>> >>
>> >> As this is calling LAPACK code,
>> >> I guess that this is yet another case where the Mac version
>> >> of optimized BLAS / LAPACK is playing wrongly.
>> >>
>>
>> > Nope, this is R's BLAS / LAPACK!
>>
>> yes, it seems, as Peter is confirming as well.
>>
>> *BUT* as far as we currently know, the problem was never seen
>> outside of MacOS X , right?
>>
>
> My experience is that the Mac OS malloc is less forgiving of writing
> outside allocated memory than the one usually used on Linux, so some
> things show up only on macs or are easier to trigger on macs even
> though the problems exist else where as well. Valgrind probably makes
> up for that most of the time but maybe not always.
>
> Best,
>
> luke
>
>
>> Martin Maechler
>>
>> >>> David Winsemius
>> >>
>> >>> On Sep 6, 2011, at 12:12 AM, robin hankin wrote:
>> >>
>> >>>> Hi. macosx 10.6.8
>> >>>>
>> >>>> With R-2.13.1 and also revision 56948 I get the following repeatable
>> >>>> segfault:
>> >>>>
>> >>>>
>> >>>>
>> >>>> wt118:~% R --vanilla --quiet
>> >>>>> R.Version()
>> >>>> $platform
>> >>>> [1] "x86_64-apple-darwin9.8.0"
>> >>>>
>> >>>> $arch
>> >>>> [1] "x86_64"
>> >>>>
>> >>>> $os
>> >>>> [1] "darwin9.8.0"
>> >>>>
>> >>>> $system
>> >>>> [1] "x86_64, darwin9.8.0"
>> >>>>
>> >>>> $status
>> >>>> [1] ""
>> >>>>
>> >>>> $major
>> >>>> [1] "2"
>> >>>>
>> >>>> $minor
>> >>>> [1] "13.1"
>> >>>>
>> >>>> $year
>> >>>> [1] "2011"
>> >>>>
>> >>>> $month
>> >>>> [1] "07"
>> >>>>
>> >>>> $day
>> >>>> [1] "08"
>> >>>>
>> >>>> $`svn rev`
>> >>>> [1] "56322"
>> >>>>
>> >>>> $language
>> >>>> [1] "R"
>> >>>>
>> >>>> $version.string
>> >>>> [1] "R version 2.13.1 (2011-07-08)"
>> >>>>
>> >>>>> eigen(crossprod(matrix(1:2000, 50)) + (0+0i), T, T)
>> >>>>
>> >>>> *** caught segfault ***
>> >>>> address 0x1038000a8, cause 'memory not mapped'
>> >>>>
>> >>>> Traceback:
>> >>>> 1: .Call("La_rs_cmplx", x, only.values, PACKAGE = "base")
>> >>>> 2: eigen(crossprod(matrix(1:2000, 50)) + (0 + (0+0i)), T, T)
>> >>>>
>> >>>> Possible actions:
>> >>>> 1: abort (with core dump, if enabled)
>> >>>> 2: normal R exit
>> >>>> 3: exit R without saving workspace
>> >>>> 4: exit R saving workspace
>> >>>> Selection: 2
>> >>>> wt118:~%
>> >>>>
>> >>>>
>> >>>>
>> >>>>
>> >>>>
>> >>>> --
>> >>>> Robin Hankin
>> >>>> Uncertainty Analyst
>> >>>> hankin.ro...@gmail.com
>> >>>>
>> >>>> ______________________________________________
>> >>>> R-devel@r-project.org mailing list
>> >>>> https://stat.ethz.ch/mailman/listinfo/r-devel
>> >>
>> >>> David Winsemius, MD
>> >>> Heritage Laboratories
>> >>> West Hartford, CT
>> >>
>> >>> ______________________________________________
>> >>> R-devel@r-project.org mailing list
>> >>> https://stat.ethz.ch/mailman/listinfo/r-devel
>> >>
>> >> ______________________________________________
>> >> R-devel@r-project.org mailing list
>> >> https://stat.ethz.ch/mailman/listinfo/r-devel
>> >>
>> >>
>>
>> ______________________________________________
>> R-devel@r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-devel
>>
>
> --
> Luke Tierney
> Chair, Statistics and Actuarial Science
> Ralph E. Wareham Professor of Mathematical Sciences
> University of Iowa Phone: 319-335-3386
> Department of Statistics and Fax: 319-335-3017
> Actuarial Science
> 241 Schaeffer Hall email: l...@stat.uiowa.edu
> Iowa City, IA 52242 WWW: http://www.stat.uiowa.edu
>
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