linux-kernel - Re: [PATCH 0/2] memcg: fix oom handling

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:	Sat, 22 Nov 2008 10:16:25 +0800
From:	Li Zefan <lizf@...fujitsu.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
CC:	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"balbir@...ux.vnet.ibm.com" <balbir@...ux.vnet.ibm.com>,
	"nishimura@....nes.nec.co.jp" <nishimura@....nes.nec.co.jp>,
	pbadari@...ibm.com, jblunck@...e.de, taka@...inux.co.jp,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	npiggin@...e.de
Subject: Re: [PATCH 0/2] memcg: fix oom handling

KAMEZAWA Hiroyuki wrote:
> Li Zefan reported
> 
> (a) This goes dead lock:
> ==
>    #echo 0 >  (...)/01/memory.limit_in_bytes   #set memcg's limit to 0,
>    #echo $$ > (...)/01/memory.tasks            #move task
>    # do something...
> ==
> 
> (b) seems to be dead lock
> ==
>    #echo 40k >  (...)/01/memory.limit_in_bytes   #set memcg's limit to 0,
>    #echo $$ > (...)/01/memory.tasks            #move task
>    # do something...
> ==
> 
> 
> I think (a) is BUG. (b) is just slow down.
> (you can see pgpgin/pgpgout count is increasing in (B).)
> 
> This patch set is for handling (a). Li-san, could you check ?

Yes, it works for me now. :)

> This works well in my environment.(means OOM-Killer is called in proper way.)
> 

--
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/