David,
Jeffrey said he is using Quartz and that is key here (since that initializes threads in the process). We have been handing this offline and it is a crash in readline. I cannot reproduce it so we're still tracking down the circumstances which as a bit odd (there are suddenly two threads in R that use the console but it is unclear where the second thread comes from and why is it calling the console API). Cheers, Simon > On Oct 1, 2021, at 7:02 AM, David Winsemius <dwinsem...@comcast.net> wrote: > > > On 9/29/21 11:17 AM, Jeffrey Rosenthal 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 would reinstall XQuartz. The `plot(0)` command changes the focus from R to > XQuartz, so the processing of the typed letter "a" is being handled by that > system function rather than by R. On my 3 year-old MacAir running R 4.1.0 > typing a letter with the system focus on a plot window produces a mild error > tone, as does typing the delete key. (No crash after returning focus to the R > process by mouse-clicking in the Terminal window. > > > -- > > David > >> >> 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/ >> >> _______________________________________________ >> R-SIG-Mac mailing list >> R-SIG-Mac@r-project.org >> https://stat.ethz.ch/mailman/listinfo/r-sig-mac > > _______________________________________________ > R-SIG-Mac mailing list > R-SIG-Mac@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-mac > _______________________________________________ R-SIG-Mac mailing list R-SIG-Mac@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-mac
