Hi. (Please CC: me of any followup) I'm running apache2 and experience a crash of (probably mod-php) some apache child process, with the prefork MPM Debian package (see more details in [0]). I've had no luck in trying to get cores dumped when the child process crash. I've set ulimit -c unlimited, set /proc/sys/fs/suid_dumpable to 2, managed to set CoreDumpDirectory to a dir writable by www-data user (the one the subprocess are run under on Debian), etc. Only the master apache2 process will dump a core on kill -11, but not its children spawned subprocess. Any idea how to get a backtrace of the culprit code ? Something is trapped by PHP maybe and prevents the core dump ? Oh, and no, running with -X seems no option : the reproducibility involves a POST to PHP code right after an apachectl graceful (i.e. /etc/init.d/apache2 reload) (see details in [1], a likely duplicate of [0]). Many thanks in advance. Best regards, [0] http://bugs.debian.org/691318 [1] http://bugs.debian.org/694473 -- Olivier BERGER http://www-public.telecom-sudparis.eu/~berger_o/ - OpenPGP-Id: 2048R/5819D7E8 Ingenieur Recherche - Dept INF Institut Mines-Telecom, Telecom SudParis, Evry (France) --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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