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Old 11-07-2008, 01:49 PM
Daniel J Walsh
 
Default Anaconda installs OOM with selinux-policy-targeted rpm from F9 updates

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Martin Langhoff wrote:
> One the last rounds of testing the new release of OLPCXS, I rebuilt it
> with fresh packages from F9 update and started testing the installer.
> Funny thing, the install did not complete -- instead, the machine
> would switch off after spending a few minutes trying to install
> selinux-policy-targeted.
>
> After a few attempts to diagnose the problem, I managed to see vmstat
> go all the way down to almost 0 memory just before the machine turned
> itself off. This particular machine has ~980MB RAM available to the
> OS. Tested on another machine with a proper 1GB memory, vmstat hit
> bottom at ~10MB free while installing selinux-policy-targeted but
> quickly recovered.
>
> I know I've installed earlier F9 based spins on machines with 512 MB
> of physical RAM so this seems like a fairly bad regression, specially
> considering that I'll soon need to install this on a machine with
> 256MB RAM.
>
> So I suspect we have 2 problems
>
> - Selinux-policy-targeted instalation seems to have balooned into a
> memory hog between f9-release and f9-updates
>
> - Anaconda OOMs without a warning or useful message to the user
>
> Has anyone else seen this? Diagnostics to recommend? I can
> successfully log anything to disk until moments before the OOM
> shutdown.
>
> Will post version numbers of the selinux rpm tomorrow when I get back
> in front of the offending machine and installer image. Apologies for
> the vagueness :-)
>
> cheers,
>
>
>
> m
selinux-policy-targeted is a memory hog, but it should not have changed
that drastically in updates.

Is this repeatable?


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Old 11-07-2008, 02:44 PM
Daniel J Walsh
 
Default Anaconda installs OOM with selinux-policy-targeted rpm from F9 updates

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Martin Langhoff wrote:
> On Fri, Nov 7, 2008 at 9:49 AM, Daniel J Walsh <dwalsh@redhat.com> wrote:
>> selinux-policy-targeted is a memory hog, but it should not have changed
>> that drastically in updates.
>>
>> Is this repeatable?
>
> 100% repeatable on the 3 attempts on the lower-mem machine. On the same machin
>
> The package selinux-policy-targeted 3.3.1 103.fc9 -- I am running a
> couple of additional installs to gather more information.
>
> On Fri, Nov 7, 2008 at 9:59 AM, Chris Lumens <clumens@redhat.com> wrote:
>>> - Anaconda OOMs without a warning or useful message to the user
>> I don't believe there's any way for anaconda to know this, and there's
>> certainly no way for us to do anything about it.
>
> Well, the behaviour is really weird. Perhaps there is no OOM killer in
> place during an anaconda install? If there was, it'd expect the rpm
> process or anaconda to be shot down -- but the machine is halting
> instead, it literally switches off.
>
> Whatever is bootstrapping anaconda (init script in the initrd?) should
> be able to at least see the odd exit status and echo a "something went
> wrong" msg...? Maybe that's the problem?
>
> cheers,
>
>
>
> m
Well selinux-policy-targeted is not supported on olpc so you should
probably exclude it from the install. I can not imagine what in updates
caused it to grow. Upgrades add rules but usually not a large amount.
Going from Fedora 9 to 10 could be a problem.


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