After short run of distcc via ethernet (tg3) it's become totally unusable, dmesg shows nothing. I've posted this bug to upstream but there is no any reply for 3 months. It's reproducible on all >=3.0 kernels even latest 3.2.15 Reproducible: Always
Can you post the link from the upstream bug.
Link attached here in "See also" field (https://bugs.gentoo.org/page.cgi?id=fields.html#see_also)
Well watch the upstream bug and backport any fixes identified.