Tor crashes about 5 times per hour since version 0.2.2.34

I run a TOR exit node (inside a chroot jail) for years already and all previous versions were quite stable. But since I updated to 0.2.2.34 a few days ago, my TOR daemon silently disappears pretty often.

I wrote a watchdog shell script that automatically restarts Tor, if it crashed. Cron runs this script every minute. The result is that Tor is now started approximately 4 to 7 times per hour.

I don't know, yet, what's going on, because I deactivated logging completely, but if you need more information (and are not yet aware of the problem), I'd be able to enable logging.

Here my environment:

Kernel: 2.6.32-34-server #77 (moved)-Ubuntu SMP Tue Sep 13 20:54:38 UTC 2011 x86_64 GNU/Linux

libevent: 1.4.13-stable-1

I compiled Tor from sources (not using any of the precompiled packages).

Trac:
Username: nlmarco