You probably hit some command sequence which put xterm into "hold" mode, which is indicated by your initial paragraph.
On May 28, 2012, at 18:39, Tom Lane <t...@sss.pgh.pa.us> wrote: > Jeremy Huddleston <jerem...@apple.com> writes: >> http://xquartz.macosforge.org/trac/ticket/557 > > Hmm, that doesn't look related to me. AFAICT, my xterms are being > spawned with no command-line switches. Also, that ticket indicates > the behavior is reproducible, which mine isn't ... > > regards, tom lane > > >> On May 27, 2012, at 14:35, Tom Lane <t...@sss.pgh.pa.us> wrote: > >>> I just observed a case of $SUBJECT: I typed control-D to end a shell >>> session, and bash replied with "Exit", but the xterm window didn't >>> close as it normally does. What's more, clicking on the red >>> window-close button did nothing, which seemed even more surprising. >>> I looked closer, and found: >>> >>> 1. According to ps, that xterm instance was chewing 100% CPU. Its >>> child process was still there, too, but listed as "(bash)", which >>> I think means it was a zombie. So this suggests a failure to respond >>> to SIGCHLD properly. >>> >>> 2. I tried to attach to the process with gdb to get a stack trace. >>> gdb wouldn't let me (something about an OS/kernel failure). On >>> reflection maybe I should have tried with Activity Monitor, but that >>> didn't occur to me in the heat of the moment. >>> >>> 3. I then tried "kill -ABRT", hoping that would produce a debuggable >>> core dump. It stopped the xterm alright, but I can't find a core. >>> >>> Anyway, this is the first time I've seen anything like this, so it >>> isn't terribly reproducible. Just mentioning it in case anyone has >>> seen the like, or has a better idea about how to gather evidence >>> if it happens again. >>> >>> regards, tom lane >>> >>> _______________________________________________ >>> Xquartz-dev mailing list >>> Xquartz-dev@lists.macosforge.org >>> http://lists.macosforge.org/mailman/listinfo.cgi/xquartz-dev >>> > > >> _______________________________________________ >> Xquartz-dev mailing list >> Xquartz-dev@lists.macosforge.org >> http://lists.macosforge.org/mailman/listinfo.cgi/xquartz-dev > > _______________________________________________ > Xquartz-dev mailing list > Xquartz-dev@lists.macosforge.org > http://lists.macosforge.org/mailman/listinfo.cgi/xquartz-dev > _______________________________________________ Xquartz-dev mailing list Xquartz-dev@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/xquartz-dev
