From: Jesse Barnes <jbarnes@virtuousgeek.org>
To: Jack Howarth <howarth@bromo.msbb.uc.edu>
Cc: linux-kernel@vger.kernel.org, Shaohua Li <shaohua.li@intel.com>
Subject: Re: [PATCH] x86,pci: dmi check for mackpro 2.2 mmconf
Date: Tue, 22 Jul 2008 18:32:20 -0700 [thread overview]
Message-ID: <200807221832.21167.jbarnes@virtuousgeek.org> (raw)
In-Reply-To: <20080723010058.GA12662@bromo.msbb.uc.edu>
On Tuesday, July 22, 2008 6:00 pm Jack Howarth wrote:
> Jesse,
> I found that patch right after I sent the email. Applying the ASPM
> patch solves the boot hangs on under 2.6.26-git9 built with
> CONFIG_PCIEASPM=y. I am attaching the dmesg log for such a boot
> below. I am a little confused if the patch totally disables aspm on
> my machine or just inhibits the hang. Is there a proc entry I can check
> to monitor that aspm is in use?
It should disable ASPM on pre-1.1 PCIe devices, since apparently many of them
get ASPM wrong, resulting in bus hangs. There's a file in sysfs to control
things:
/sys/module/pcie_aspm/parameters/policy
(see the description in 7d715a6c1ae5785d00fb9a876b5abdfc43abc44b for info).
With the patch applied hopefully it indicates that things are disabled.
Thanks for testing.
Jesse
next prev parent reply other threads:[~2008-07-23 1:32 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-22 23:37 [PATCH] x86,pci: dmi check for mackpro 2.2 mmconf Jack Howarth
2008-07-23 0:23 ` Jesse Barnes
2008-07-23 1:00 ` Jack Howarth
2008-07-23 1:32 ` Jesse Barnes [this message]
2008-07-23 1:41 ` Jack Howarth
2008-07-23 1:54 ` Shaohua Li
-- strict thread matches above, loose matches on Subject: below --
2008-07-18 16:41 Yinghai Lu
2008-07-18 16:50 ` Jack Howarth
2008-07-18 17:44 ` H. Peter Anvin
2008-07-18 17:47 ` Yinghai Lu
2008-07-18 17:49 ` H. Peter Anvin
2008-07-18 17:54 ` Yinghai Lu
2008-07-18 20:19 ` Ingo Molnar
2008-07-18 20:21 ` Yinghai Lu
2008-07-18 20:21 ` Ingo Molnar
2008-07-18 20:26 ` Yinghai Lu
2008-07-19 0:58 ` Jack Howarth
2008-07-19 1:22 ` Yinghai Lu
2008-07-19 3:28 ` Jack Howarth
2008-07-19 3:43 ` Justin Mattock
2008-07-19 4:45 ` Yinghai Lu
2008-07-19 5:12 ` Jack Howarth
2008-07-19 5:28 ` Yinghai Lu
2008-07-19 17:26 ` Jesse Barnes
2008-07-19 18:19 ` Jack Howarth
2008-07-19 18:40 ` Jack Howarth
2008-07-19 19:04 ` Jesse Barnes
2008-07-19 19:14 ` Jack Howarth
2008-07-21 6:49 ` Shaohua Li
2008-07-22 21:15 ` Jesse Barnes
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