linux-kernel - Re: [memcg BUG ?] failed to boot on IA64 with CONFIG

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]

Date:	Fri, 5 Dec 2008 12:24:58 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
Cc:	Li Zefan <lizf@...fujitsu.com>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [memcg BUG ?] failed to boot on IA64 with CONFIG_DISCONTIGMEM=y

On Fri, 5 Dec 2008 12:20:24 +0900
KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> wrote:

> On Fri, 05 Dec 2008 11:09:29 +0800
> Li Zefan <lizf@...fujitsu.com> wrote:
> 
> > Kernel version: 2.6.28-rc7
> > Arch: IA64
> > Memory model: DISCONTIGMEM
> > 
> > ELILO boot: Uncompressing Linux... done
> > Loading file initrd-2.6.28-rc7-lizf.img...done
> > (frozen)
> > 
> > 
> > Booted successfully with cgroup_disable=memory, here is the dmesg:
> > 
> 
> thx, will dig into...Maybe you're the first person using DISCONTIGMEM with
> empty_node after page_cgroup-alloc-at-boot.
> 
> How about this ?

Ahhh..sorry.

this one please.
==

From: kamezawa.hiroyu@...fujitsu.com

page_cgroup should ignore empty-nodes.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>

---
 mm/page_cgroup.c |    3 +++
 1 file changed, 3 insertions(+)

Index: mmotm-2.6.28-Dec03/mm/page_cgroup.c
===================================================================
--- mmotm-2.6.28-Dec03.orig/mm/page_cgroup.c
+++ mmotm-2.6.28-Dec03/mm/page_cgroup.c
@@ -51,6 +51,9 @@ static int __init alloc_node_page_cgroup
 	start_pfn = NODE_DATA(nid)->node_start_pfn;
 	nr_pages = NODE_DATA(nid)->node_spanned_pages;
 
+	if (!nr_pages)
+		return 0;
+
 	table_size = sizeof(struct page_cgroup) * nr_pages;
 
 	base = __alloc_bootmem_node_nopanic(NODE_DATA(nid),

--
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/