linux-kernel - Re: [RFC] oom, but there is enough memory

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Thu, 31 Mar 2016 12:57:00 +0200
From:	Michal Hocko <mhocko@...nel.org>
To:	Xishi Qiu <qiuxishi@...wei.com>
Cc:	Linux MM <linux-mm@...ck.org>, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [RFC] oom, but there is enough memory

On Thu 31-03-16 17:38:06, Xishi Qiu wrote:
[...]
> Hi Michal,
> 
> It's arm64, so DMA is [0-4G], and Normal is [4G-]

I wasn't aware of that. Thanks for the clarification.

> Is that something wrong with the RAM hardware, then trigger the problem?

This is hard to tell but I would try to check which of the page fault
path has returned with VM_FAULT_OOM. This might be a wrong .fault
callback.
-- 
Michal Hocko
SUSE Labs