Control-backslash is the default way to generate SIGQUIT from the keyboard on Unix and SIGQUIT, by default, aborts the process and causes it to produce a core dump. Do you want R to catch SIGQUIT?
% stty --all speed 38400 baud; rows 24; columns 64; line = 0; intr = ^C; quit = ^\; erase = ^H; kill = ^U; eof = ^D; eol = <undef>; eol2 = <undef>; swtch = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W; lnext = ^V; flush = ^O; min = 1; time = 0; -parenb -parodd -cmspar cs8 -hupcl -cstopb cread -clocal -crtscts -ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl ixon -ixoff -iuclc -ixany -imaxbel -iutf8 opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0 isig icanon iexten echo echoe echok -echonl -noflsh -xcase -tostop -echoprt echoctl echoke Bill Dunlap TIBCO Software wdunlap tibco.com On Fri, Feb 10, 2017 at 10:40 AM, Henrik Bengtsson <henrik.bengts...@gmail.com> wrote: > When running R from the terminal on Linux (Ubuntu 16.04), it core > dumps whenever / wherever I press Ctrl-4 or Ctrl-\. You get thrown > back to the terminal with "Quit (core dump)" being the only message. > Grepping the R source code, it doesn't look like that message is > generated by R itself. Over on Twitter, it has been confirmed to also > happen on macOS. > > $ R -d valgrind --vanilla --quiet > ==979== Memcheck, a memory error detector > ==979== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al. > ==979== Using Valgrind-3.11.0 and LibVEX; rerun with -h for copyright info > ==979== Command: /usr/lib/R/bin/exec/R --vanilla --quiet > ==979== >> 1+2 > [1] 3 > > # At next prompt I press Ctrl-\. The same happens also when done in > the middle of an entry. > >> ==979== > ==979== Process terminating with default action of signal 3 (SIGQUIT) > ==979== at 0x576C9C3: __select_nocancel (syscall-template.S:84) > ==979== by 0x502EABE: R_SelectEx (in /usr/lib/R/lib/libR.so) > ==979== by 0x502EDDF: R_checkActivityEx (in /usr/lib/R/lib/libR.so) > ==979== by 0x502F32B: ??? (in /usr/lib/R/lib/libR.so) > ==979== by 0x4F6988B: Rf_ReplIteration (in /usr/lib/R/lib/libR.so) > ==979== by 0x4F69CF0: ??? (in /usr/lib/R/lib/libR.so) > ==979== by 0x4F69DA7: run_Rmainloop (in /usr/lib/R/lib/libR.so) > ==979== by 0x4007CA: main (in /usr/lib/R/bin/exec/R) > ==979== > ==979== HEAP SUMMARY: > ==979== in use at exit: 28,981,596 bytes in 13,313 blocks > ==979== total heap usage: 27,002 allocs, 13,689 frees, 49,025,684 > bytes allocated > ==979== > ==979== LEAK SUMMARY: > ==979== definitely lost: 0 bytes in 0 blocks > ==979== indirectly lost: 0 bytes in 0 blocks > ==979== possibly lost: 0 bytes in 0 blocks > ==979== still reachable: 28,981,596 bytes in 13,313 blocks > ==979== suppressed: 0 bytes in 0 blocks > ==979== Rerun with --leak-check=full to see details of leaked memory > ==979== > ==979== For counts of detected and suppressed errors, rerun with: -v > ==979== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0) > Quit (core dumped) > > $ R --version > R version 3.3.2 (2016-10-31) -- "Sincere Pumpkin Patch" > Copyright (C) 2016 The R Foundation for Statistical Computing > Platform: x86_64-pc-linux-gnu (64-bit) > > /Henrik > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
