Jeffrey,

can you send me the crash log, please? (Utilities ->Console->User Reports).

Thanks,
Simon


> On Sep 30, 2021, at 7:17 AM, Jeffrey Rosenthal <j...@math.toronto.edu> wrote:
> 
> Hello.  I often use R from the command-line (i.e. just typing "R") within the 
> "Terminal" application on my MacBook Pro laptop.  And sometimes I get a 
> sudden strange error "*** caught segfault *** address 0x10, cause 'memory not 
> mapped'" (after which R allows me to abort/exit/etc, but not to continue).  
> It occurs when using the arrow or delete keys (perhaps related to readline?). 
>  After much testing, I have found a very simple reproducible minimal example. 
> Namely, if I start R from the command line, and then type "plot(0)", and then 
> type any character (e.g. "a") and then the delete key, then it always 
> triggers this error.  Does this error occur for anyone else?  Any ideas how 
> to fix it?
> 
> I know that this problem is quite specific to my Mac laptop set-up; it does 
> not occur on my iMac nor on my friend's Mac.  On the other hand, I did try 
> upgrading R and that did not fix it.  My sessionInfo() output follows.  I am 
> *not* saving R history, nor setting R_SAVEHIST, and I do *not* have any 
> .Rhistory or .Rapp.history file in my directory.  Thank you very much for any 
> suggestions!
> 
> --------------------------------------------
> 
>> sessionInfo()
> 
> R version 4.0.2 (2020-06-22)
> Platform: x86_64-apple-darwin17.0 (64-bit)
> Running under: macOS Catalina 10.15.7
> 
> Matrix products: default
> BLAS:
> /Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRblas.dylib
> LAPACK:
> /Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRlapack.dylib
> 
> locale:
> [1] en_CA.UTF-8/en_CA.UTF-8/en_CA.UTF-8/C/en_CA.UTF-8/en_CA.UTF-8
> 
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
> 
> loaded via a namespace (and not attached):
> [1] compiler_4.0.2
> 
> ------------------------------------------------
>   Jeffrey S. Rosenthal
>   Professor of Statistics, University of Toronto
>   Web site: http://probability.ca/jeff/
> 
> _______________________________________________
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> 

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