[TUHS] signals and blocked in I/O

Larry McVoy lm at mcvoy.com
Sat Dec 2 08:38:59 AEST 2017


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.



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