I found this while trying to find out why squid doesn't produce a core
file:
http://lists.samba.org/archive/samba-technical/2002-August/023576.html
Most UNIX variants disable core dumps in programs that have changed their
uid or euid during operation. This includes Solaris and Linux.
Well, squid does exactly that. How can I still get a coredump? I really
need one. Kernel 2.6.11.7
--
Ralf Hildebrandt (i.A. des IT-Zentrum) [email protected]
Charite - Universit?tsmedizin Berlin Tel. +49 (0)30-450 570-155
Gemeinsame Einrichtung von FU- und HU-Berlin Fax. +49 (0)30-450 570-962
IT-Zentrum Standort CBF send no mail to [email protected]
Ralf Hildebrandt wrote:
> I found this while trying to find out why squid doesn't produce a core
> file:
>
> http://lists.samba.org/archive/samba-technical/2002-August/023576.html
>
> Most UNIX variants disable core dumps in programs that have changed their
> uid or euid during operation. This includes Solaris and Linux.
>
> Well, squid does exactly that. How can I still get a coredump? I really
> need one. Kernel 2.6.11.7
Not in stock kernel, no.
There's a patch in -ac series which implements 'suid_dumpable' attribute.
It is included with RedHat kernels I think.
The fun stuff is that I wasn't able to use the functionality anyway (i
had similar but a bit worse problem) -- regardless of how hard i tried,
it didn't produce any core dumps ;)
/mjt
P.S. Hi, Ralf! The world is too small! ;)
Ralf Hildebrandt <[email protected]> wrote:
> Most UNIX variants disable core dumps in programs that have changed their
> uid or euid during operation. This includes Solaris and Linux.
>
> Well, squid does exactly that. How can I still get a coredump? I really
> need one. Kernel 2.6.11.7
It cannot change the (e)uid if it is run as user. Maybe this helps.
--
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