linux-kernel - Re: [GIT PULL v2] Early SLAB fixes for 2.6.31

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:	Mon, 15 Jun 2009 12:10:01 +0300
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	Heiko Carstens <heiko.carstens@...ibm.com>
Cc:	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org,
	akpm@...ux-foundation.org, cl@...ux-foundation.org,
	kamezawa.hiroyu@...fujitsu.com, lizf@...fujitsu.com, mingo@...e.hu,
	npiggin@...e.de, yinghai@...nel.org, benh@...nel.crashing.org
Subject: Re: [GIT PULL v2] Early SLAB fixes for 2.6.31

On Mon, Jun 15, 2009 at 11:18 AM, Heiko
Carstens<heiko.carstens@...ibm.com> wrote:
> I didn't look any deeper into this, but looks to me like doing something like
> schedule_work() this early isn't ok.
>
> This is the conversion that leads to the crash:
>
> -               alloc_bootmem_low(sizeof(struct raw3215_info));
> +               kzalloc(sizeof(struct raw3215_info), GFP_NOWAIT | GFP_DMA);
>
> Might be that I missed something. Maybe some special flag?

Btw, you should not need to use GFP_NOWAIT anymore and GFP_KERNEL
should be fine even during early boot.

                                   Pekka
--
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/