is there a specific bug/bugs you're referring to? a hung task means that a process is sitting on a core waiting on a specific bit of I/O for > 120 seconds. Not the length of the entire process, mind you, which depends on countless inputs and outputs to complete, but something on the other side isn't answering for a very long time. It usually means an unhealthy system at some level.
On Wed, Nov 14, 2012 at 11:04 AM, Ken Teh <[email protected]> wrote: > I've recently been encountering this problem trying to stand up a large > RAID 5 disk server. My first encounter was when I was doing write speed > tests. I thought I had solved this problem by letting the megaraid card > complete a slow init of the volume before trying to create a linux > filesystem on it and re-doing my speed measurements. > > But I have just now encountered it again on a new RAID 5 volume which I > also let complete a slow init over the weekend. I was in fact trying to do > a pvcreate on the volume when it hung. > > Can anyone shed some light? I see posts for it but everything I read > suggests it's been taken care of. > -- Thanks, Jamie Duncan 804.571.0458
