From mboxrd@z Thu Jan 1 00:00:00 1970 From: lm@mcvoy.com (Larry McVoy) Date: Fri, 1 Dec 2017 14:38:59 -0800 Subject: [TUHS] signals and blocked in I/O In-Reply-To: References: <20171201154448.GL3924@mcvoy.com> <20171201161810.GM3924@mcvoy.com> <20171201172603.GO3924@mcvoy.com> Message-ID: <20171201223859.GX3924@mcvoy.com> On Fri, Dec 01, 2017 at 01:33:46PM -0800, Bakul Shah wrote: > > Yeah, it's not an easy fix but the problem we are having right now is that > > the system is thrashing. Why the OOM code isn't fixing it I don't know. > > It just feels busted. > > So OOM code kills a (random) process in hopes of freeing up > some pages but if this process is stuck in diskIO, nothing > can be freed and everything grinds to a halt. Is this right? Yep, exactly.