[Rd] RObjectTables freezes in R 3.2.0 RC on 32bit systems
maechler at ada-1.stat.math.ethz.ch
Wed Apr 15 21:04:30 CEST 2015
>>>>> Jeroen Ooms <jeroenooms at gmail.com>
>>>>> on Tue, 14 Apr 2015 23:11:01 -0700 writes:
> On Tue, Apr 14, 2015 at 6:29 PM, Jeroen Ooms
> <jeroenooms at gmail.com> wrote:
>> Things work as expected up till dbread(), but once the
>> object-table is attached, R freezes on 32bit whereas it
>> works as expected on 64bit.
> Debugging this some more, it looks like the freeze appears
> at the very end of the attach function, when it calls
> length(names(value)) on the newly created object-tables
> environment. At this stage, calling ls(value) gives the
> expected output, but calling names(value) or length(value)
> triggers the freeze.
Well, attach() itself has been modified since R 3.1.x; it now
length(names(value)) where value <- .Internal(attach(..))
where as before it used
length(ls(envir = value, all.names = TRUE))
and the new code is considerably faster for regular cases,
but as you say is not correctly working for the special
Maybe this helps to find a last minute patch to that part in the
R 3.2.0 RC sources ?
> The NEWS file does mention that R 3.2.0 introduces some
> changes to names(env) internals. Could it be that this
> somehow conflicts with the object tables hooks?
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