Package: apache2-mpm-prefork Version: 2.2.3-4 Severity: normal In apache2.2 (at least prefork mpm), 'apache2 -X' doesn't create a new process group. Despite that, on exit it sends a SIGTERM to whatever the process group is, causing all sorts of damage. Amongst them a FTBFS on libembperl-perl when building/testing against apache 2.2 (bug #416016). The broken code is in server/mpm/prefork/prefork.c. Follow the behaviour of one_process=1 (triggered by -X): In prefork_pre_config() it carefully avoids calling apr_proc_detach(), which would have done all the daemonising, including creating a new process group. In ap_mpm_run() it calls unixd_killpg(getpgrp(), SIGTERM) during both graceful and ungraceful shutdown. I haven't looked at other mpm's code to see if the bug exists in some form there too. libembperl-perl ran its apache2 tests happily with apache2.0 so I presume this is a relatively new bug. I /think/ calling apr_proc_detach(APR_PROC_DETACH_FOREGROUND) even in one_process (and probably all other foreground/no_detach) cases is the right thing to do but I haven't tried it at all. - Gus -- System Information: Debian Release: 4.0 APT prefers testing APT policy: (500, 'testing'), (89, 'unstable'), (1, 'experimental') Architecture: i386 (i686) Shell: /bin/sh linked to /bin/dash Kernel: Linux 2.6.18-4-686 Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8) Versions of packages apache2-mpm-prefork depends on: ii apache2. 2.2.3-4 Next generation, scalable, extenda ii libapr1 1.2.7-8.2 The Apache Portable Runtime Librar ii libaprut 1.2.7+dfsg-2 The Apache Portable Runtime Utilit ii libc6 2.3.6.ds1-13 GNU C Library: Shared libraries ii libdb4.4 4.4.20-8 Berkeley v4.4 Database Libraries [ ii libexpat 1.95.8-3.4 XML parsing C library - runtime li ii libldap2 2.1.30-13.3 OpenLDAP libraries ii libpcre3 6.7-1 Perl 5 Compatible Regular Expressi ii libpq4 8.1.8-1 PostgreSQL C client library ii libsqlit 3.3.8-1.1 SQLite 3 shared library ii libuuid1 1.39+1.40-WIP-2006.11.14+dfsg-2 universally unique id library apache2-mpm-prefork recommends no packages. -- no debconf information -- - Gus -- - Gus
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