Re: [Rd] Stack checking, core dumps, and embedding R

From: Simon Urbanek <>
Date: Wed 12 Apr 2006 - 00:35:53 GMT

On Apr 11, 2006, at 5:34 AM, A.J. Rossini wrote:

> I've been experiencing some interesting stack warnings recently
> when moving from R 2.2.x to the R 2.3.0 series and the R 2.4.0
> series. In particular, I'm getting warnings of "Error: C stack
> usage is too close to the limit" before segfaulting, and this
> wasn't happening under the 2.2.x series.
> Here's the question statement: (ONLY) In the situation where one
> is embedding R, is anyone else seeing this occur with recent (past
> 2 weeks) versions of R (both the 2.3.x and 2.4.x series)?

When embedding R, the stack base is set to -1 (which is almost certainly wrong) if R cannot find the stack base using some system method. I have just fixed the detection for OS X, so you shouldn't get that message there anymore. However, I was wondering why to not set it to something reasonable - even if we are not the main application, IMHO less harm is done setting it to something based on the current stack pointer than using -1. The status quo relies on the embedding application to set the stack base - I don't know if that's a good idea. Opinions?

Simon mailing list Received on Wed Apr 12 11:03:35 2006

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