Maybe, worth a try. Are you loading any data.table objects from disk? > 64 bit 2.12.1 linux. > > Is there an option I can set in my session in order to work around the > truelength issue? I don't care if I lose some of the over-allocation > niceties if it stops things from crashing. Looking at the truelength > help, would just doing: > > options(datatable.alloc=quote(1000)) > > stop this? I never have more than about 50 columns at a time. > > On 14 December 2011 11:43, Matthew Dowle <[email protected]> wrote: >> >> You're R < 2.14.0, right? I'm really struggling in R < 2.14.0 to make >> over-allocation work because R only started to initialize truelength to >> 0 >> in R 2.14.0+. Before that it's unitialized (random). Trouble is my >> attempts in R < 2.14.0 to work around that work fine for me in linux >> 32bit >> when I test in R 2.13.2, and I even test in 2.12.0 too. I test on 64bit >> too but just 2.14.0. CRAN is also showing errors on 2.13.2 (old-rel) >> for >> both mac and windows. >> >> So, this is a pre-2.14.0 (only) problem that I'll continue to try and >> fix. >> >> Are you 64bit pre-2.14.0? Which OS? If you are 64bit linux then it adds >> weight to me installing pre-2.14.0 on my 64bit instance in an effort to >> reproduce. >> >> >>> This will be a crappy help request because I can't seem to reproduce >>> it, but the past few days I've been getting a lot of segfaults. The >>> only common thing between every crash is that it happens when I do >>> >>> DT[, z := x] >>> >>> where z was not a column that existed in DT before, and x is either an >>> existing column of DT or a separate variable, doesn't matter. Beyond >>> that I can't reproduce a set of steps that gets R to crash. This is >>> with the latest SVN version. >>> >>> Is there more information I can provide to help track this down? >>> _______________________________________________ >>> datatable-help mailing list >>> [email protected] >>> https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/datatable-help >>> >> >> >
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