Memory leak?

[Dominik Sandjaja <dominik@xxxxxxxxxx>]

Hello,

I am using a local tor network (three nodes) for testing purposes. For
simulating maximum load, I wrote a script, which initiated circuits from
a fourth computer ("penetrator") and closed them as soon as they were
built. This was done via TorCtl (Tor Control Protocol).

The nodes were fully loaded with the circuit building (as expected on a
GBit network), but after a while, the middle node (and only that one)
exits with an out of memory error.

Now I wonder whether this is the "normal" behavior or whether it is
caused by a leak. Although I am pretty aggressively building and closing
circuits, an oom shouldn't happen as all circuits are being closed
immediately after being "built".

The problem is reliably reproducible with tor stable as well as -alpha.
It only happens on the middle node, independent of the underlying
hardware.

So, question still is: Is the oom accepted or an actual error?

Thanks in advance,
Dominik