linux-kernel - Re: [PATCH] oom: skip frozen tasks

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: <201108252303.17446.rjw@sisk.pl>
Date:	Thu, 25 Aug 2011 23:03:17 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Oleg Nesterov <oleg@...hat.com>
Cc:	Michal Hocko <mhocko@...e.cz>,
	David Rientjes <rientjes@...gle.com>,
	Konstantin Khlebnikov <khlebnikov@...nvz.org>,
	linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Subject: Re: [PATCH] oom: skip frozen tasks

On Thursday, August 25, 2011, Oleg Nesterov wrote:
> On 08/25, Michal Hocko wrote:
> >
> > On Wed 24-08-11 12:31:26, David Rientjes wrote:
> > >
> > > That's obviously false since we call oom_killer_disable() in 
> > > freeze_processes() to disable the oom killer from ever being called in the 
> > > first place, so this is something you need to resolve with Rafael before 
> > > you cause more machines to panic.
> >
> > I didn't mean suspend/resume path (that is protected by oom_killer_disabled)
> > so the patch doesn't make any change.
> 
> Confused... freeze_processes() does try_to_freeze_tasks() before
> oom_killer_disable() ?

Yes, it does.

Thanks,
Rafael
--
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/