netdev - Re: "x86: allocate space within a region top-down" causes bar0 access 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]

Date:	Fri, 17 Dec 2010 11:47:21 -0800
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	Jon Mason <jon.mason@...r.com>
Cc:	Bjorn Helgaas <bjorn.helgaas@...com>, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, Ramkrishna Vepa <ramkrishna.vepa@...r.com>
Subject: Re: "x86: allocate space within a region top-down" causes bar0
 access issue

On Fri, 17 Dec 2010 13:44:58 -0600
Jon Mason <jon.mason@...r.com> wrote:

> The following patch is causing problem with the vxge driver/adapter on
> HP x86-64 systems. Reads to bar0 to return 0xffffffffffffffff instead
> of their intended value.  This prevents the vxge module from loading
> by failing sanity checks in the driver for certain values in bar0.  We
> are not seeing any issues with this patch on non-HP systems in our
> lab.
> 
> Can this patch be removed from 2.6.37 until a better solution can be
> found?

Can you try my for-linus branch and see if the problem still exists
there?  It's at
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6.git.

Thanks,
-- 
Jesse Barnes, Intel Open Source Technology Center
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html