We are running ami-fd4aa494 with 2.6.32-305-ec2 in us-east. I'll see what I can do about setting up a couple nodes with the more recent 2.6.32 kernel build and report back.
We've already started running a few Maverick instances with 2.6.35-24-virtual, and so far they appear to be more stable. Unfortunately, the issue is not easy to reproduce initially (as evidenced by the efforts in this thread). Recently restarted instances appear to be more stable than those that have been running for a while under load. It looks like some heisenbug gets the system into a sideways state, and once that happens you can lock things up pretty deterministically with something as trivial as a tight loop. So it's possible that Maverick will go sideways too at some point and we simply haven't seen it yet. Hard to say for sure without knowing what the trigger is. -- You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. https://bugs.launchpad.net/bugs/708920 Title: Strange 'fork/clone' blocking behavior under high cpu usage on EC2 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
