Re: Machine crashes right *after* ~successful resume

[Yinghai Lu]

On Wed, Oct 29, 2014 at 2:37 AM, Wilmer van der Gaast <wilmer@xxxxxxxxx> wrote:
>
>> Anyway please try attached patched on top of 3.17.
>>
> Done, and that did work! Four suspend+resume cycles later and it's still
> stable.

Then can you test attached simplified one.
---
 drivers/pci/pci.c |   13 +++++++++++++
 1 file changed, 13 insertions(+)

Index: linux-2.6/drivers/pci/pci.c
===================================================================
--- linux-2.6.orig/drivers/pci/pci.c
+++ linux-2.6/drivers/pci/pci.c
@@ -1265,6 +1265,19 @@ static void pci_enable_bridge(struct pci
 	pci_set_master(dev);
 }
 
+static void ite_set_d0(struct pci_dev *dev)
+{
+	if (dev->pm_cap) {
+		u16 pmcsr;
+		pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr);
+		dev->current_state = (pmcsr & PCI_PM_CTRL_STATE_MASK);
+	}
+
+	pci_set_power_state(dev, PCI_D0);
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x244e, ite_set_d0);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ITE, 0x8892, ite_set_d0);
+
 static int pci_enable_device_flags(struct pci_dev *dev, unsigned long flags)
 {
 	struct pci_dev *bridge;