On Thu, 2009-01-15 at 14:22 -0500, Len Brown wrote: > On Thu, 15 Jan 2009, James Bottomley wrote: > > > On Mon, 2009-01-12 at 18:48 -0600, James Bottomley wrote: > > > On Mon, 2009-01-12 at 16:16 -0500, Len Brown wrote: > > > > > This is on an IBM Maia system with the calgary IOMMU enabled. It's a > > > > > fatal boot up panic. > > > > > > > > > > > > > James, > > > > A guided bisect... > > > > Please let me know which of these fail > > > > > > > > a3a798c88a14b35e5d4ca30716dbc9eb9a1ddfe2 is 2.6.29 at ACPI merge > > > > efcb3cf7f00c3c424db012380a8a974c2676a3c8 is 2.6.29 before ACPI merge > > > > > > Didn't try these (being after the failure) > > > > > > > ec9f168fcc344d2ffec1c8c822076bf22dab5c33 is 2.6.28 with most ACPI > > > > > > This is the failing one. > > > > > > > e8443c358c34f3fe65236e24147ddf0cd0e61b08 is 2.6.28 plus just ACPICA > > > > > > This one boots fine. > > > > > > > Please test the "2.6.28+ACPICA" one first. > > > > If it fails, we are close so you can skip the others above > > > > and bisect between that and 2.6.28. > > > > > > I'll try bisecting between ec9f168fcc344d2ffec1c8c822076bf22dab5c33 and > > > e8443c358c34f3fe65236e24147ddf0cd0e61b08. > > > > OK, bisection complete. It's not actually coming from the ACPI tree but > > from the PCI one (appropriate CC's added). > > > > The commit causing the boot panic is: > > > > commit e8c331e963c58b83db24b7d0e39e8c07f687dbc6 > > Author: Kenji Kaneshige <kaneshige.kenji@xxxxxxxxxxxxxx> > > Date: Wed Dec 17 12:09:12 2008 +0900 > > > > PCI hotplug: introduce functions for ACPI slot detection > > > > I'm still not sure why, though > > Nothing jumped out at me in the patch. > Does reverting e8c331e963c58b83db24b7d0e39e8c07f687dbc6 > make the boot crash go away? Yes, but then it would ... the call sequence is through the reverted code. James -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
