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Re: [PATCH v2 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs [message #47646 is a reply to message #47643]

Tue, 21 August 2012 10:57

Michal Hocko
Messages: 109
Registered: December 2011

Senior Member

On Tue 21-08-12 13:40:45, Glauber Costa wrote:
> On 08/21/2012 01:35 PM, Michal Hocko wrote:
[...]
> > I am asking because this should trigger memcg-oom
> > but that one will usually pick up something else than the fork bomb
> > which would have a small memory footprint. But that needs to be handled
> > on the oom level obviously.
> >
> Sure, but keep in mind that the main protection is against tasks *not*
> in this memcg.

Yes and that's is good step forward. I just wanted to mention that we
still have the problem inside the subhierarchy. The changelog was not
specific enough.
--
Michal Hocko
SUSE Labs

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[Message index]

		[PATCH v2 00/11] Request for Inclusion: kmem controller for memcg. By: Glauber Costa on Thu, 09 August 2012 13:01
		[PATCH v2 01/11] memcg: Make it possible to use the stock for more than one page. By: Glauber Costa on Thu, 09 August 2012 13:01
		Re: [PATCH v2 01/11] memcg: Make it possible to use the stock for more than one page. By: Michal Hocko on Fri, 10 August 2012 15:12
		[PATCH v2 03/11] memcg: change defines to an enum By: Glauber Costa on Thu, 09 August 2012 13:01
		Re: [PATCH v2 03/11] memcg: change defines to an enum By: Michal Hocko on Fri, 10 August 2012 15:43
		[PATCH v2 04/11] kmem accounting basic infrastructure By: Glauber Costa on Thu, 09 August 2012 13:01
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: KAMEZAWA Hiroyuki on Fri, 10 August 2012 17:02
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Glauber Costa on Mon, 13 August 2012 08:36
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: KAMEZAWA Hiroyuki on Fri, 17 August 2012 02:38
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Michal Hocko on Tue, 14 August 2012 16:21
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Glauber Costa on Wed, 15 August 2012 09:33
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: James Bottomley on Wed, 15 August 2012 11:12
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Michal Hocko on Wed, 15 August 2012 12:55
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: James Bottomley on Wed, 15 August 2012 13:29
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Michal Hocko on Wed, 15 August 2012 12:39
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Glauber Costa on Wed, 15 August 2012 12:53
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Michal Hocko on Wed, 15 August 2012 13:02
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Glauber Costa on Wed, 15 August 2012 13:04
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Michal Hocko on Wed, 15 August 2012 13:26
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Glauber Costa on Wed, 15 August 2012 13:31
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Michal Hocko on Wed, 15 August 2012 14:10
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Glauber Costa on Wed, 15 August 2012 14:11
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Christoph Lameter on Wed, 15 August 2012 14:47
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Glauber Costa on Wed, 15 August 2012 15:11
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Christoph Lameter on Wed, 15 August 2012 15:34
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Glauber Costa on Wed, 15 August 2012 15:35
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Christoph Lameter on Wed, 15 August 2012 17:26
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Ying Han on Wed, 15 August 2012 18:11
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Christoph Lameter on Wed, 15 August 2012 18:25
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Glauber Costa on Wed, 15 August 2012 19:22
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Ying Han on Wed, 15 August 2012 18:07
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Greg Thelen on Wed, 15 August 2012 15:19
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Christoph Lameter on Wed, 15 August 2012 15:36
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Ying Han on Wed, 15 August 2012 18:01
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Glauber Costa on Wed, 15 August 2012 18:00
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Ying Han on Wed, 15 August 2012 19:50
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Michal Hocko on Thu, 16 August 2012 15:25
		Re: [PATCH v2 04/11] kmem accounting basic infrastructure By: Ying Han on Fri, 17 August 2012 05:58
		[PATCH v2 02/11] memcg: Reclaim when more than one page needed. By: Glauber Costa on Thu, 09 August 2012 13:01
		Re: [PATCH v2 02/11] memcg: Reclaim when more than one page needed. By: Michal Hocko on Fri, 10 August 2012 15:42
		Re: [PATCH v2 02/11] memcg: Reclaim when more than one page needed. By: KAMEZAWA Hiroyuki on Fri, 10 August 2012 16:49
		Re: [PATCH v2 02/11] memcg: Reclaim when more than one page needed. By: Michal Hocko on Fri, 10 August 2012 17:28
		Re: [PATCH v2 02/11] memcg: Reclaim when more than one page needed. By: KAMEZAWA Hiroyuki on Fri, 10 August 2012 17:56
		Re: [PATCH v2 02/11] memcg: Reclaim when more than one page needed. By: Michal Hocko on Fri, 10 August 2012 17:30
		Re: [PATCH v2 02/11] memcg: Reclaim when more than one page needed. By: Michal Hocko on Fri, 10 August 2012 18:52
		Re: [PATCH v2 02/11] memcg: Reclaim when more than one page needed. By: Michal Hocko on Fri, 10 August 2012 18:54
		Re: [PATCH v2 02/11] memcg: Reclaim when more than one page needed. By: Glauber Costa on Mon, 13 August 2012 08:05
		Re: [PATCH v2 02/11] memcg: Reclaim when more than one page needed. By: Michal Hocko on Mon, 13 August 2012 13:10
		[PATCH v2 07/11] mm: Allocate kernel pages to the right memcg By: Glauber Costa on Thu, 09 August 2012 13:01
		Re: [PATCH v2 07/11] mm: Allocate kernel pages to the right memcg By: Greg Thelen on Thu, 09 August 2012 16:33
		Re: [PATCH v2 07/11] mm: Allocate kernel pages to the right memcg By: Glauber Costa on Thu, 09 August 2012 16:42
		Re: [PATCH v2 07/11] mm: Allocate kernel pages to the right memcg By: KAMEZAWA Hiroyuki on Fri, 10 August 2012 17:33
		Re: [PATCH v2 07/11] mm: Allocate kernel pages to the right memcg By: Glauber Costa on Mon, 13 August 2012 08:03
		Re: [PATCH v2 07/11] mm: Allocate kernel pages to the right memcg By: Mel Gorman on Mon, 13 August 2012 08:57
		Re: [PATCH v2 07/11] mm: Allocate kernel pages to the right memcg By: Greg Thelen on Fri, 10 August 2012 17:36
		Re: [PATCH v2 07/11] mm: Allocate kernel pages to the right memcg By: Glauber Costa on Mon, 13 August 2012 08:02
		Re: [PATCH v2 07/11] mm: Allocate kernel pages to the right memcg By: Glauber Costa on Wed, 15 August 2012 09:08
		Re: [PATCH v2 07/11] mm: Allocate kernel pages to the right memcg By: Mel Gorman on Wed, 15 August 2012 13:22
		Re: [PATCH v2 07/11] mm: Allocate kernel pages to the right memcg By: Glauber Costa on Wed, 15 August 2012 13:39
		Re: [PATCH v2 07/11] mm: Allocate kernel pages to the right memcg By: Glauber Costa on Wed, 15 August 2012 13:51
		Re: [PATCH v2 07/11] mm: Allocate kernel pages to the right memcg By: Michal Hocko on Wed, 15 August 2012 09:24
		Re: [PATCH v2 07/11] mm: Allocate kernel pages to the right memcg By: Mel Gorman on Tue, 14 August 2012 15:16
		[PATCH v2 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs By: Glauber Costa on Thu, 09 August 2012 13:01
		Re: [PATCH v2 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs By: KAMEZAWA Hiroyuki on Fri, 10 August 2012 17:54
		Re: [PATCH v2 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs By: Michal Hocko on Tue, 21 August 2012 09:35
		Re: [PATCH v2 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs By: Glauber Costa on Tue, 21 August 2012 09:40
		Re: [PATCH v2 11/11] protect architectures where THREAD_SIZE >= PAGE_SIZE against fork bombs By: Michal Hocko on Tue, 21 August 2012 10:57
		[PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Glauber Costa on Thu, 09 August 2012 13:01
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: KAMEZAWA Hiroyuki on Fri, 10 August 2012 17:51
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Glauber Costa on Mon, 13 August 2012 08:01
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Michal Hocko on Fri, 17 August 2012 09:00
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Glauber Costa on Fri, 17 August 2012 09:15
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Michal Hocko on Fri, 17 August 2012 09:35
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Glauber Costa on Fri, 17 August 2012 10:07
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Michal Hocko on Fri, 17 August 2012 10:35
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Glauber Costa on Fri, 17 August 2012 10:36
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Michal Hocko on Tue, 21 August 2012 07:54
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Michal Hocko on Tue, 21 August 2012 08:35
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Glauber Costa on Tue, 21 August 2012 09:17
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Glauber Costa on Tue, 21 August 2012 09:22
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Michal Hocko on Tue, 21 August 2012 10:00
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Glauber Costa on Tue, 21 August 2012 10:01
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Greg Thelen on Wed, 22 August 2012 01:09
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Glauber Costa on Wed, 22 August 2012 08:22
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Greg Thelen on Wed, 22 August 2012 23:23
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Glauber Costa on Thu, 23 August 2012 07:55
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Greg Thelen on Fri, 24 August 2012 05:06
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Glauber Costa on Fri, 24 August 2012 05:23
		Re: [PATCH v2 09/11] memcg: propagate kmem limiting information to children By: Glauber Costa on Fri, 17 August 2012 10:39
		[PATCH v2 08/11] memcg: disable kmem code when not in use. By: Glauber Costa on Thu, 09 August 2012 13:01
		Re: [PATCH v2 08/11] memcg: disable kmem code when not in use. By: Michal Hocko on Fri, 17 August 2012 07:02
		Re: [PATCH v2 08/11] memcg: disable kmem code when not in use. By: Glauber Costa on Fri, 17 August 2012 07:01
		Re: [PATCH v2 08/11] memcg: disable kmem code when not in use. By: Michal Hocko on Fri, 17 August 2012 08:04
		[PATCH v2 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Thu, 09 August 2012 13:01
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: KAMEZAWA Hiroyuki on Fri, 10 August 2012 17:27
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Mon, 13 August 2012 08:28
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Greg Thelen on Tue, 14 August 2012 18:58
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Wed, 15 August 2012 09:18
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Greg Thelen on Wed, 15 August 2012 16:38
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Wed, 15 August 2012 17:00
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Greg Thelen on Wed, 15 August 2012 17:12
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Wed, 15 August 2012 19:31
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Greg Thelen on Thu, 16 August 2012 03:37
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Thu, 16 August 2012 07:47
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: KAMEZAWA Hiroyuki on Mon, 20 August 2012 13:36
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Mon, 20 August 2012 15:29
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: KAMEZAWA Hiroyuki on Fri, 17 August 2012 02:36
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Fri, 17 August 2012 07:04
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Tue, 14 August 2012 11:00
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Greg Thelen on Sat, 11 August 2012 05:11
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Mon, 13 August 2012 08:07
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Mon, 13 August 2012 09:59
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Greg Thelen on Mon, 13 August 2012 21:21
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Michal Hocko on Tue, 14 August 2012 17:25
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Wed, 15 August 2012 09:42
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Wed, 15 August 2012 10:44
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Michal Hocko on Wed, 15 August 2012 13:09
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Wed, 15 August 2012 14:01
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Michal Hocko on Wed, 15 August 2012 14:23
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Wed, 15 August 2012 14:27
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Michal Hocko on Thu, 16 August 2012 09:53
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Thu, 16 August 2012 09:57
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Michal Hocko on Thu, 16 August 2012 15:05
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Thu, 16 August 2012 15:22
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Greg Thelen on Tue, 21 August 2012 21:50
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Wed, 22 August 2012 08:35
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Greg Thelen on Thu, 23 August 2012 00:07
		Re: [PATCH v2 06/11] memcg: kmem controller infrastructure By: Glauber Costa on Thu, 23 August 2012 07:51
		[PATCH v2 10/11] memcg: allow a memcg with kmem charges to be destructed. By: Glauber Costa on Thu, 09 August 2012 13:01
		Re: [PATCH v2 10/11] memcg: allow a memcg with kmem charges to be destructed. By: Michal Hocko on Tue, 21 August 2012 08:22
		Re: [PATCH v2 10/11] memcg: allow a memcg with kmem charges to be destructed. By: Glauber Costa on Wed, 22 August 2012 08:36
		[PATCH v2 05/11] Add a __GFP_KMEMCG flag By: Glauber Costa on Thu, 09 August 2012 13:01
		Re: [PATCH v2 05/11] Add a __GFP_KMEMCG flag By: KAMEZAWA Hiroyuki on Fri, 10 August 2012 17:07
		Re: [PATCH v2 00/11] Request for Inclusion: kmem controller for memcg. By: Ying Han on Fri, 17 August 2012 21:37
		Re: [PATCH v2 00/11] Request for Inclusion: kmem controller for memcg. By: Glauber Costa on Mon, 20 August 2012 07:51

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