Comment 1 for bug 541371

This caused only one thread to stop so I doubt that the CA server is consuming an abnormal number of MBUFs. Each TCP circuit has a hard quota. Since NTP time sync is failing also it sounds like a network stack issue is the precipitating event.

Nevertheless, this could indicate some kind of bug in the event queue occurring only when the network stack is clobbered. Another possibility; some errant code clobbered the data structures of both the ca server and the network stack.

I will need to have a careful look at the source code.