linux-kernel - Re: MMIO and gcc re-ordering issue

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: <adaabibs778.fsf@cisco.com>
Date:	Tue, 27 May 2008 15:39:07 -0700
From:	Roland Dreier <rdreier@...co.com>
To:	benh@...nel.crashing.org
Cc:	Arjan van de Ven <arjan@...radead.org>, linux-arch@...r.kernel.org,
	linux-kernel@...r.kernel.org, tpiepho@...escale.com,
	linuxppc-dev@...abs.org, scottwood@...escale.com,
	torvalds@...ux-foundation.org, David Miller <davem@...emloft.net>,
	alan@...rguk.ukuu.org.uk
Subject: Re: MMIO and gcc re-ordering issue

 > > Cool... I assume you do this for mutex_unlock() etc?

 > That's a good point... I don't think we do. Maybe we should.

I think it's needed -- take a look at 76d7cc03, which came from a real
bug seen on Altix boxes.
--
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/