linux-kernel - Re: Problem: Out of memory after 2days with 2GB RAM

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: <20080612174357.ed9dc10a.akpm@linux-foundation.org>
Date:	Thu, 12 Jun 2008 17:43:57 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	"Zdenek Kabelac" <zdenek.kabelac@...il.com>
Cc:	johannes@...solutions.net, tomasw@...il.com, riel@...hat.com,
	linux-kernel@...r.kernel.org, yi.zhu@...el.com,
	reinette.chatre@...el.com, linux-wireless@...r.kernel.org
Subject: Re: Problem: Out of memory after 2days with 2GB RAM

On Thu, 12 Jun 2008 22:11:32 +0200
"Zdenek Kabelac" <zdenek.kabelac@...il.com> wrote:

> Well - it's great that there will be saved few kB in allocation of
> never used pointers in iwl driver - but does this really solve the
> problem that kernel gets relatively quickly out of memory for
> allocations of this size - I guess iwl isn't the only driver
> requesting 32 sequential pages.

I hope it is the only one.  Doing a 128kb GFP_ATOMIC allocation is
hopelessly unreliable.  Even a 128k GFP_KERNEL allocation will fail all
over the place.

Please convert the driver to allocate no more than 4k at a time.
--
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/