Re: [Rd] core Matrix package segfaulted on R CMD check --use-gct

From: Martin Maechler <maechler_at_stat.math.ethz.ch>
Date: Thu, 07 Apr 2011 12:24:32 +0200

>>>>> "HL" == Hin-Tak Leung <htl10_at_users.sourceforge.net> >>>>> on Thu, 7 Apr 2011 07:51:44 +0100 writes:

    HL> Douglas Bates wrote:
>> I isolated the problem and tested then committed a fix. I am going to
>> ask Martin to upload the new release as I have gotten out of sync with
>> some of his recent changes and he will, I hope, reconcile the branches
>> and trunk. If you need the fixed version immediately, say for
>> testing, the changes are in the file Matrix/src/chm_common.c You can
>> visit the SVN archive for the project,
>> https://r-forge.r-project.org/scm/?group_id=61, click on the link to
>> Browse Subversion Repository and go to pkg/Matrix/src/chm_common.c
>>
>> I made the mistake that I chastised others for making, performing an
>> operation on the result of a call to install and another value that
>> may have required allocation of memory. The first time install is
>> called on a particular string it allocates and SEXPREC, which may
>> cause a garbage collection.

    HL> Matrix-for-R-2.13_at_2659 (0.999375-49) has the problem at a different place:
>> pkgname <- "Matrix"
>> source(file.path(R.home("share"), "R", "examples-header.R"))
>> gctorture(TRUE)
>> options(warn = 1)
>> options(error=dump.frames)
>> library('Matrix')

    HL> Loading required package: lattice
    HL> Error in regexpr("package:", envName, fixed = TRUE) :
    HL> unprotected object (0x2fe5818) encountered (was INTSXP)
    HL> Error: package/namespace load failed for 'Matrix'

    HL> That aside - with R 2.13 only about a week to go, which version of Matrix will     HL> it ship?

Well, R-2.13.0 is in "Release Candidate" ('RC') stage, after having passed the alpha and beta stages.

So, almost surely, the current CRAN version of Matrix, also part of all recent R-2.13.0 tarballs will be shipped along.

If we can reproduce your problem, we will fix it, hopefully pretty soon, and release a version of Matrix, 0.9996875-0 close to the release time of R-2.13.0;
but for stability reasons (of R-2.13.0 and all its testing on all platforms), it would not ship with 2.13.0 and only people who explicitly update.packages(...) [after R-2.13.0 installation] will get it.

Martin



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