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
>>
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