Re: 4.8.8 kernel trigger OOM killer repeatedly when I have lots of RAM that should be free

From: Michal Hocko
Date: Tue May 02 2017 - 03:44:41 EST

On Mon 01-05-17 21:12:35, Marc MERLIN wrote:
> Howdy,
> Well, sadly, the problem is more or less back is 4.11.0. The system doesn't really
> crash but it goes into an infinite loop with
> [34776.826800] BUG: workqueue lockup - pool cpus=6 node=0 flags=0x0 nice=0 stuck for 33s!
> More logs:

I am seeing a lot of traces where tasks is waiting for an IO. I do not
see any OOM report there. Why do you believe this is an OOM killer
Michal Hocko