On Thu, Dec 5, 2013 at 10:37 AM, Stephan Wiesand <stephan.wies...@desy.de> wrote: > On Dec 5, 2013, at 18:51 , Orion Poplawski wrote: > >> I'm seeing some very strange behavior on one of our storage servers >> recently, and am wondering if anyone else has been experiencing similar >> issues. I think it may be related to InfiniBand somehow, but not sure. >> Unfortunately there are no error messages in the logs of any kind. But >> network traffic out of one or more interfaces just stops, or some traffic >> (ping e.g.) will work, but ssh/tcp won't. >> >> Seen with both 2.6.32-431 and 2.6.32-358.23.2, and I think 2.6.32-220.23.1. > > > Not observed here, including on ~160 systems with IB. But then we have no > systems running -431 yet, few running -358.23.2, and none running kernels as > old as -220.x.y. Most are on -358.x.y. > > Thought it might still be a useful data point.
Speaking of a data point ... this may not be directly related to the problem described by the OP but just a heads up. The -431 kernel in EL6.5 is known to cause network issues in _certain_ hardware. You can find more details in: http://bugs.centos.org/view.php?id=6810 Akemi
