[R] segfault 'memory not mapped', dual core problem?

Barnet Wagman bw at northbranchlogic.com
Mon Nov 13 06:20:41 CET 2006


Peter Dalgaard wrote:
> Barnet Wagman <bw at northbranchlogic.com> writes:
>
>   
>>> It's highly unlikely that the dual core has anything to do with it
>>> unless your system is overheating or has a hardware problem.
>>>
>>> Instead, see if you can create a script that reproduces the issue (if
>>> random numbres are involved, use set.seed) and/or run R with the -d
>>> gdb switch on and see if you can get a traceback.
>>>   
>>>       
>> ^ Are there random numbers involved in estimating a logit (which is what
>> I was running)? (I'm not using any random numbers in my functions or in
>> generating my data.)  I wouldn't have thought so, but then I don't
>> really understand how logit estimations are actually calculated.
>>     
>
> Only if you use simulated data. Do you get the crash in the same place
> if you rerun the same code on the same data?
>
>   
I think the problem WAS overheating - a segfault also occurred during a
cbind().  I've changed some fan setting and everything seems ok now.

thanks



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