Bug#244857: cannot run apache -F setsid: Operation not permitted

[arturcz@hell.pl]

Package: php4,apache
Version: 4:4.3.4-4
Severity: important

Hello,
This a result of strange problem which I got after today update of sarge.
There was only php4 package updated, that apache started to segfault.
I tried to run apache in foreground mode under gdb or to dump a core
but
apache -F 
quits instantly dumping following text in error.log:

setsid: Operation not permitted
apache: setsid failed
setsid() failed probably because you aren't running under a process management tool like daemontools

I run apache -F as a:
foo:~# id
uid=0(root) gid=0(root) groups=0(root)

which I switch to via sudo su -

I can replicate this apache -F bug on another machine where current unstable
is installed.

I suspect that responsible for this bug is php4 because error message
does not look like generated from apache.

Note: however this bug cannot be considered RC it makes debugging of another
RC bug[1] impossible for me. Could you give me any hint how can I debug
the main problem?

Cheers
	Artur

[1] Well, I wont submit a bugreport only with: "apache segfaults" inside.

-- System Information:
Debian Release: testing/unstable
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.4.24
Locale: LANG=C, LC_CTYPE=C

Versions of packages php4 depends on:
ii  apache-common               1.3.29.0.2-4 Support files for all Apache webse
ii  debconf [debconf-2.0]       1.4.21       Debian configuration management sy
ii  libbz2-1.0                  1.0.2-1      A high-quality block-sorting file 
ii  libc6                       2.3.2.ds1-11 GNU C Library: Shared libraries an
ii  libdb4.2                    4.2.52-16    Berkeley v4.2 Database Libraries [
ii  libexpat1                   1.95.6-8     XML parsing C library - runtime li
ii  libmm13                     1.3.0-1      Shared memory library - runtime
ii  libpam0g                    0.76-16      Pluggable Authentication Modules l
ii  libpcre3                    4.5-1.1      Perl 5 Compatible Regular Expressi
ii  libssl0.9.7                 0.9.7d-1     SSL shared libraries
ii  mime-support                3.26-1       MIME files 'mime.types' & 'mailcap
ii  zlib1g                      1:1.2.1-5    compression library - runtime

Versions of packages apache depends on:
ii  apache-common               1.3.29.0.2-4 Support files for all Apache webse
ii  debconf                     1.4.21       Debian configuration management sy
ii  dpkg                        1.10.20      Package maintenance system for Deb
ii  libc6                       2.3.2.ds1-11 GNU C Library: Shared libraries an
ii  libdb4.2                    4.2.52-16    Berkeley v4.2 Database Libraries [
ii  libexpat1                   1.95.6-8     XML parsing C library - runtime li
ii  libmagic1                   4.07-2       File type determination library us
ii  libpam0g                    0.76-16      Pluggable Authentication Modules l
ii  logrotate                   3.6.5-2      Log rotation utility
ii  mime-support                3.26-1       MIME files 'mime.types' & 'mailcap
ii  perl                        5.8.3-3      Larry Wall's Practical Extraction 

-- debconf information:
* php4/update_apache_php_ini: true

-- debconf information:
* apache/document-root: /var/www
* apache/server-port: 80
* apache/enable-suexec: true
* apache/init: true