How do I disable coredumps on F12?

[Andre Costa]

On Thu, Dec 10, 2009 at 01:02, Ed Greshko <Ed.Greshko at greshko.com> wrote:

> Andre Costa wrote:
> > Hi Ed,
> >
> > On Wed, Dec 9, 2009 at 01:57, Ed Greshko <Ed.Greshko at greshko.com
> > <mailto:Ed.Greshko at greshko.com>> wrote:
> >
> >     Andre Costa wrote:
> >     > Hi Rick, thks for the reply. Comments below:
> >     >
> >     > On Tue, Dec 8, 2009 at 23:12, Rick Stevens <ricks at nerd.com
> >     <mailto:ricks at nerd.com>
> >     > <mailto:ricks at nerd.com <mailto:ricks at nerd.com>>> wrote:
> >     >
> >     >     On 12/08/2009 03:44 PM, Andre Costa wrote:
> >     >
> >     >         Hi,
> >     >
> >     >         apps crashes are generating coredumps on /var/cache/abrt/*
> ;
> >     >         since I
> >     >         won't debug them myself and won't send them anywhere
> because
> >     >         they're too
> >     >         big, I would like to turn them off. I tried uncommenting
> >     >
> >     >         #*               soft    core            0
> >     >
> >     >         on /etc/security/limits.conf but it did not work, coredumps
> >     >         were still
> >     >         being generated.
> >     >
> >     >
> >     >     I believe you need to reboot for that to take effect.
> >     >
> >     >
> >     > I did that, to no avail :-(
> >     >
> >     >
> >     >         Then I tried to set
> >     >
> >     >         MaxCrashReportsSize = 0
> >     >
> >     >         directly on /etc/abrt/abrt.conf, restarted abrtd but it
> >     didn't
> >     >         work
> >     >         either (oddly enough abrt-gui doesn't allow changing this
> >     >         setting, "ok"
> >     >         button is disabled -- not even if I run it as root).
> >     >
> >     >         So, as a last resource I created a script on
> /etc/cron.daily
> >     >         to get rid
> >     >         of the coredumps, but I'd rather not create them in the
> >     first
> >     >         place.
> >     >
> >     >         Anyone could give a hand?
> >     >
> >     >
> >     >     Well, you should also, as root:
> >     >
> >     >            echo 'fs.suid_dumpable = 0' >> /etc/sysctl.conf
> >     >            sysctl -p
> >     >
> >     >     That prevents suid programs from creating core files.  You
> >     should
> >     >     also make sure that there is a line to the effect:
> >     >
> >     >            ulimit -S -c 0 >/dev/null 2>&1
> >     >
> >     >     is in /etc/profile so that all users have a core file dump
> >     limit size
> >     >     of 0 bytes.
> >     >
> >     >
> >     > Cool, nice tips, will implement them and see if they finally free
> me
> >     > from these damned coredumps =/ (IMHO there should be an easier
> >     way of
> >     > doing that, considering this is a "new" feature shipped with F12)
> >     >
> >     Have you tried simply turning off the abrtd service?
> >
> >
> > That's definitely an option, and it already crossed my mind, but the
> > thing is that I'd really like to contribute with bug reports. My
> > problem is not abrt per se, I actually like the idea, but I just can't
> > understand why it is not easy to turn off coredumps generation since
> > they're useless -- the smallest one I've got was 15M, which AFAIK
> > would never be accepted as a bugzilla attachment (and it can get
> > worse: Firefox keeps generating 350-450M coredumps when it crashes...).
> >
> > So, ideally I would keep abrt around, and just turn off coredumps
> > generation. But, if worse comes to worst, I will end up disabling it
> > completely -- which I think will be a step back, but...
> Ahhh....that doesn't make much sense., IHMO.
>
> The abrtd service is designed to collect all the relevant information on
> a crash and send it back for analysis.  Part of that relevant
> information would be the coredump.  So, you want to remove a portion of
> the relevant information?  Don't you think that would devalue the service?
>

Point taken. But, unless the backtraces are useless without the coredumps, I
would still like to contribute with backtraces. If backtraces don't help by
themselves, then you're right, I'd be better off disabling abrtd
completely...

Andre
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