linux-kernel - Re: [PATCH] aoe: end barrier bios with EOPNOTSUPP

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: <84f18127dcdb4762bf9dc6796846087f@coraid.com>
Date:	Thu, 10 Sep 2009 11:16:42 -0400
From:	Ed Cashin <ecashin@...aid.com>
To:	jens.axboe@...cle.com, ecashin@...aid.com,
	alan@...rguk.ukuu.org.uk, akpm@...ux-foundation.org,
	apw@...onical.com, bonbons@...ux-vserver.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] aoe: end barrier bios with EOPNOTSUPP

On Thu Sep 10 03:48:22 EDT 2009, jens.axboe@...cle.com wrote:
> On Wed, Sep 09 2009, Ed Cashin wrote:
...
> > If I had a reproducable problem case that the barrier implementation
> > could fix, it would be very helpful.
> 
> Depending on timing and the other end, it may not be easy to reproduce.
> But the problem is indeed real, so I think you should just add the
> proper barrier implementation instead of spending too much time trying
> to create a reproducable problem. By the time you get there, you could
> have fixed it many times over :-)

OK. I will start work on it.  But if anybody can give me a torture
test that works on aoe devices, I'll be grateful.

I think the EOPNOTSUPP patch is good for the for-next aoe quilt tree,
while the new barrier support will be good for 2.6.32.

-- 
  Ed
--
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/