Odd behaviour when apache-module is active

[Martin Schmidt]

> The symptoms disappear as soon as you deactivate Shibboleth on that
> machine?
> Also you're not mentioning anything about the machine, assigned
> hardware (or virtualized "hardware") resources, usage of these
> resources, available (or lack of) entropy, etc.

The symptoms disappear as soon as i deactivate the shib2-mod for apache.
stopped or running shibd doesnt change a thing.
Sorry for the lack of information:
Its a virtual Machine running on VMware-Hypervisor (full virtualization).
CPU: 4 x 2.6GHz 64bit
6GB RAM
Debian Wheezy 7.11


> You're saying using the Wheezy default packages causes "the same
> behaviour", i.e., instant slowness of the server, but you can't find
> out why, but you still suspect it's Shibboleth's fault? Probably
> because the slowness immediately goes away once you stop shibd and
> unload mod_shib?

i dont say its Shibboleths fault. I know its an old system. The customer
asked for it and so we tried to get it running and now we are experiencing
this behaviour.
Maybe it is a known issue and there is absolutely no solution but maybe
someone experienced the same and has a workaround to get the combination of
wheezy apache 2.2 prefork and shib2.5.3/2.4.3 running.

> So is your specific question why using the version from backports
> packages don't change the symptoms you're (not) seeing (only feeling)
> also when using the version from oldoldstable?

No, i want to know if anyone experienced such a behaviour or could give me
a hint where to look at and why an apache-mod can affect the ssh-login.
Is the Prefork-mpm the problem?
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