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From: Sean McNeil <sean@mcneil.com>
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Subject: httpd core dumps in regfree on shutdown
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I have been getting core dumps on shutdown for quite some time now.  I
finally took a look at it and this is what I see:

#0  0x285dab30 in ?? ()
#1  0x0806deff in regex_cleanup ()
#2  0x2834192d in run_cleanups () from
/usr/local/lib/apache2/libapr-0.so.9
#3  0x2834119c in apr_pool_destroy () from
/usr/local/lib/apache2/libapr-0.so.9
#4  0x2834118b in apr_pool_destroy () from
/usr/local/lib/apache2/libapr-0.so.9
#5  0x0806b561 in destroy_and_exit_process ()
#6  0x0806c4de in main ()
#7  0x0805d0b9 in _start ()

It looks like somehow one of my processes is, perhaps, trying to free
something twice.  I think this might be my SSL process but I am not
certain of it.

Sean