Hi, On 7/4/2017 11:32 AM, Bjorn Helgaas wrote: > [+cc linux-pci] > > Thanks very much for the detailed problem report, Wim! I'm taking the > liberty to forward to the linux-pci list in case others trip over the > same thing. > So, the spec is lying :) and reality doesn't match theory. "Per the ECN mentioned below, all PCIe Receivers are expected to support Extended Tags" > > > > The problem is not specific to this piece of h/w. I did pin-point the > issue to specific kernel code commit <snip> > 60db3a4d8cc9073cf56264785197ba75ee1caca4 > * <wtenhave@hagen:55> git bisect good > 60db3a4d8cc9073cf56264785197ba75ee1caca4 is the first bad commit > commit 60db3a4d8cc9073cf56264785197ba75ee1caca4 > Author: Sinan Kaya <okaya@xxxxxxxxxxxxxx> > Date: Fri Jan 20 09:16:51 2017 -0500 > > PCI: Enable PCIe Extended Tags if supported > <snip> > 3. Boot and see it crash as soon it starts to operate on specific PCI > Express Ethernet controller. > I guess we have an endpoint/system with errata that needs to be blacklisted. Can you please try another endpoint with the same system? You have conflicting information above. I want to understand whether it is the endpoint or the system that needs to be blacklisted. Please also provide sudo lspci -vvv output from the system with the patch. Sinan -- Sinan Kaya Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
