Milter-greylist

Joel Reicher wrote:
 > The weird thing is that I'm getting a segmentation fault but no
 > core dump.

Usually one of two reaons:
-1- The milter-greylist user doesn't have permission to
    write a core dump to its current working directory.
-2- The core dump size limit is set to 0, effectively
    disabling core dumps.

Some operating systems also have other ways to control core
dumps.  For example, FreeBSD has a number of "sysctl" MIB
values (see "sysctl kern | grep core") which can be used to
enable/disable core dumps globally, and to specify the
location and name of core dumps.

Some programs also prevent proper core dumps themselves by
installing a signal handler for SIGSEGV (which is usually a
bad idea because it makes debugging more difficult, even if
the signal handler then performs a core dump "manually").
But I think milter-greylist doesn't do that, and sendmail's
libmilter only traps SIGPIPE, SIGHUP, SIGTERM and SIGINT.

Best regards
   Oliver


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Oliver Fromme,  secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing
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