linux-kernel - Re: [GIT PULL] SLAB changes for v2.6.39-rc1

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: <AANLkTimU4ccaUUyKfgoUCkgxORkWDhqAQAkX-=SVwq8J@mail.gmail.com>
Date:	Thu, 24 Mar 2011 21:04:11 +0200
From:	Pekka Enberg <penberg@...nel.org>
To:	Christoph Lameter <cl@...ux.com>
Cc:	Eric Dumazet <eric.dumazet@...il.com>, Ingo Molnar <mingo@...e.hu>,
	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	tj@...nel.org, npiggin@...nel.dk, rientjes@...gle.com,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [GIT PULL] SLAB changes for v2.6.39-rc1

On Thu, Mar 24, 2011 at 9:02 PM, Christoph Lameter <cl@...ux.com> wrote:
> On Thu, 24 Mar 2011, Eric Dumazet wrote:
>
>> Le jeudi 24 mars 2011 à 13:47 -0500, Christoph Lameter a écrit :
>>
>> > Hmmm.. Could be. KVM would not really disable interrupts so this may
>> > explain that the test case works here.
>> >
>> > Simple fix would be to do a load before the cli I guess.
>> >
>>
>> Hmm...
>>
>> If we have a preemption and migration right after this load...
>
> Cannot be the issue here since init_kmem_cache_cpus already
> touches the per cpu data. At least if CONFIG_PREEMPT is on.
> Is it on?

It's not.
--
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/