Re: Coredump when program run as root?

[Michael Tokarev]

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! ;)
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