random latency in named

[Tony Finch]

Mathew Ian Eis <Mathew.Eis at nau.edu> wrote:
>
> * The OS is RHEL 6.6; we just updated the kernel to
> 2.6.32-504.16.2.el6.x86_64, also with no effect.

Is your server using a Haswell CPU? If so it might be the lost futex
wakeup bug discussed at the links below, in which case the problem might
go away if you upgrade to RHEL 6.6.z.

https://groups.google.com/forum/#!topic/mechanical-sympathy/QbmpZxp6C64
https://news.ycombinator.com/item?id=9542548

Tony.
-- 
f.anthony.n.finch  <dot at dotat.at>  http://dotat.at/
Viking, North Utsire, South Utsire: Southwesterly 4 or 5, veering westerly
then northwesterly 6 to gale 8. Moderate, becoming rough or very rough. Rain
then showers. Moderate or poor, becoming good.