I came across this setting and added it to the kernel, which made Bubba not die when running Squid. Perhaps it also helps to reduce other crash cases. It has to do with tcp congestion control.
echo 0 > /proc/sys/net/ipv4/tcp_ecn
Also look here:
http://trac.fonosfera.org/fon-ng/ticket/479
New user's registration have been closed due to high spamming and low trafic on this forum. Please contact forum admins directly if you need an account. Thanks !