[tor-relays] tor cpu usage

[Martin Weinelt]

Hey,

I'm running a tor relay with version 0.2.4.11-alpha and there seems to
be an issue about cpu usage.

Usually when the bandwidth peaks (at about 10 MBit/s) the cpu is at
about 25-35% load, however after a few days it gets stuck at 100%.

The notices-logfile, to my knowledge, does not indicate any weirdness.
I'm attaching the "[warn]" section though:

Apr 04 18:19:16.000 [warn] crypto error while checking RSA signature:
block type is not 01 (in rsa routines:RSA_padding_check_PKCS1_type_1)
Apr 04 18:19:16.000 [warn] crypto error while checking RSA signature:
padding check failed (in rsa routines:RSA_EAY_PUBLIC_DECRYPT)
Apr 06 20:38:18.000 [warn] Tried to establish rendezvous on non-OR or
non-edge circuit.
Apr 06 21:01:05.000 [warn] Tried to establish rendezvous on non-OR or
non-edge circuit.
Apr 07 04:35:49.000 [warn] eventdns: Unable to add nameserver
2001:4860:4860::8888: error 2
Apr 07 04:35:49.000 [warn] eventdns: Unable to add nameserver
2001:4860:4860::8844: error 2

Unfortunately I don't do any statistics so I can't relate a specific
event with the spiking cpu load.

Does anybody else experience this? What could cause this? How can I fix it?

Martin