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From: Shaohua Li <>
To: "Дамјан Георгиевски" <>
Cc: Greg KH <>, lkml <>,
	linux-pci <>,
	"Kok, Auke" <>
Subject: Re: PCIE ASPM support hangs my laptop pretty often
Date: Tue, 19 Feb 2008 13:55:58 +0800	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Wed, 2008-02-06 at 01:40 +0800, Дамјан Георгиевски wrote:
> I've patched my kernel with the PCIe ASPM and after setting
> echo powersave > /sys/module/pcie_aspm/parameters/policy
> I started to experience random hangs of my laptop.
> Hardware info:
> Thinkpad x60s 1704-5UG
> also tested on a firends X60s 1702-F6U
> Kernel is 2.6.24 + these patches:
>  tuxonice 3.0-rc5
>  thinkpad_acpi v0.19-20080107
>  tp_smapi 0.36
Sorry for the long delay, I'm just back from vocation. Some devices or
chipsets don't work well with ASPM. This is one of the reason why the
default policy of the patch is per BIOS setting. Ideally drivers should
disable ASPM for specific devices, the patch provides an API
(pci_disable_link_state) for this too. As Auke suggested, you can use
the per-device interface to control separate links to see which device
is broken. If you found one, please report to driver maintainer and me,
we can disable ASPM in the driver.


      parent reply	other threads:[~2008-02-19  6:05 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-05 17:40 Дамјан Георгиевски
2008-02-05 18:46 ` Arjan van de Ven
2008-02-05 18:51   ` Greg KH
2008-02-05 20:58     ` Kok, Auke
2008-02-06  0:05       ` Дамјан Георгиевски
2008-02-06  0:22         ` Kok, Auke
2008-02-06 13:00           ` Pavel Machek
2008-02-06 17:25             ` Rafael J. Wysocki
2008-02-06 21:46               ` Kok, Auke
2008-02-06 21:58                 ` Greg KH
2008-02-19  5:55 ` Shaohua Li [this message]

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