linux-kernel - Re: Machine crashes right *after* ~successful resume

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Message-ID: <544EC59D.9080303@gaast.net>
Date:	Mon, 27 Oct 2014 22:22:21 +0000
From:	Wilmer van der Gaast <wilmer@...st.net>
To:	Yinghai Lu <yinghai@...nel.org>
CC:	Bjorn Helgaas <bhelgaas@...gle.com>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Pavel Machek <pavel@....cz>,
	Rafael Wysocki <rafael.j.wysocki@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Machine crashes right *after* ~successful resume

Hello,

On 27-10-14 18:23, Yinghai Lu wrote:
>
> 04:00.0 PCI bridge: Integrated Technology Express, Inc. Device 8892
>
> So that ITE will not work after suspend/resume?
>
Even after the first one already, you mean?

Honestly, I don't really know what its purpose is, and it doesn't have 
any child nodes in the PCI tree from what I can tell. Possibly because I 
don't have any PCI cards in the machine, just a PCIe video card - 
assuming this is a PCI bridge taking care of legacy PCI plugin cards?

> Please apply 4 attached patches and try to remove the device like
>
> echo 1 > /sys/bus/pci/devices/0000\:04\:00.0/remove
> echo 1 > /sys/bus/pci/devices/0000\:00\:1c.3/pcie_link_disable
>
> before suspend/resume test.
>
That worked! Resumed properly now.

Full log in http://gaast.net/~wilmer/.lkml/good3.17.txt . Including the 
PCI dump at boot time, where that device doesn't dump just ff's.


Wilmer van der Gaast.

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