linux-kernel - Re: Bug#695182: [RFC] Reproducible OOM with just a few sleeps

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

Message-ID: <20130201102044.GA2801@amd.pavel.ucw.cz>
Date:	Fri, 1 Feb 2013 11:20:44 +0100
From:	Pavel Machek <pavel@...x.de>
To:	Phil Turmel <philip@...mel.org>
Cc:	paul.szabo@...ney.edu.au, ben@...adent.org.uk,
	695182@...s.debian.org, dave@...ux.vnet.ibm.com,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: Bug#695182: [RFC] Reproducible OOM with just a few sleeps

On Thu 2013-01-31 23:38:27, Phil Turmel wrote:
> On 01/31/2013 10:13 PM, paul.szabo@...ney.edu.au wrote:
> > [trim /] Does not that prove that PAE is broken?
> 
> Please, Paul, take *yes* for an answer.  It is broken.  You've received
> multiple dissertations on why it is going to stay that way.  Unless you
> fix it yourself, and everyone seems to be politely wishing you the best
> of luck with that.

It is not Paul's job to fix PAE. It is job of whoever broke it to do
so.

If it is broken with 2GB of RAM, it is clearly not the known "lowmem
starvation" issue, it is something else... and probably worth
debugging.

So, Paul, if you have time and interest... Try to find some old kernel
version where sleep test works with PAE. Hopefully there is one. Then
do bisection... author of the patch should then fix it. (And if not,
at least you have patch you can revert.)

rjw is worth cc-ing at that point.
									Pavel 
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/