From: Michal Hocko <mhocko@kernel.org>
To: Pavel Machek <pavel@ucw.cz>
Cc: kernel list <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@osdl.org>,
linux-mm@kvack.org, akpm@linux-foundation.org
Subject: Re: OOM killer not nearly agressive enough?
Date: Thu, 9 Jan 2020 12:56:33 +0100 [thread overview]
Message-ID: <20200109115633.GR4951@dhcp22.suse.cz> (raw)
In-Reply-To: <20200107204412.GA29562@amd>
On Tue 07-01-20 21:44:12, Pavel Machek wrote:
> Hi!
>
> I updated my userspace to x86-64, and now chromium likes to eat all
> the memory and bring the system to standstill.
>
> Unfortunately, OOM killer does not react:
>
> I'm now running "ps aux", and it prints one line every 20 seconds or
> more. Do we agree that is "unusable" system? I attempted to do kill
> from other session.
Does sysrq+f help?
> Do we agree that OOM killer should have reacted way sooner?
This is impossible to answer without knowing what was going on at the
time. Was the system threshing over page cache/swap? In other words, is
the system completely out of memory or refaulting the working set all
the time because it doesn't fit into memory?
> Is there something I can tweak to make it behave more reasonably?
PSI based early OOM killing might help. See https://github.com/facebookincubator/oomd
--
Michal Hocko
SUSE Labs
next prev parent reply other threads:[~2020-01-09 11:56 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-07 20:44 Pavel Machek
2020-01-09 11:56 ` Michal Hocko [this message]
2020-01-09 21:03 ` Pavel Machek
2020-01-09 21:25 ` Michal Hocko
2020-01-09 22:48 ` Pavel Machek
2020-01-10 1:24 ` Shakeel Butt
2020-01-10 6:31 ` Michal Hocko
2020-01-09 21:46 ` Vito Caputo
2020-01-09 21:58 ` Michal Hocko
2020-01-09 21:05 ` Pavel Machek
2020-01-09 21:28 ` Michal Hocko
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