linux-kernel - Re: [PATCH] mm: add the block to the tail of the list in expand()

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: <55C221EB.7060500@intel.com>
Date:	Wed, 05 Aug 2015 07:47:07 -0700
From:	Dave Hansen <dave.hansen@...el.com>
To:	Xishi Qiu <qiuxishi@...wei.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Mel Gorman <mgorman@...e.de>, Vlastimil Babka <vbabka@...e.cz>,
	Johannes Weiner <hannes@...xchg.org>,
	Michal Hocko <mhocko@...e.cz>, iamjoonsoo.kim@....com,
	alexander.h.duyck@...hat.com, sasha.levin@...cle.com,
	Linux MM <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mm: add the block to the tail of the list in expand()

On 08/05/2015 12:54 AM, Xishi Qiu wrote:
> I add some debug code like this, but it doesn't trigger the dump_stack().
...
> +         if (!list_empty(&area->free_list[migratetype])) {
> +                 printk("expand(), the list is not empty\n");
> +                 dump_stack();
> +         }
> +

That will probably not trigger unless you have allocations that are
falling back and converting other pageblocks from other migratetypes.
--
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/