Ubuntu
linux-azure package

  1. Bug #1883261
  2. Comment #0

Comment 0 for bug 1883261

Revision history for this message
Joseph Salisbury (jsalisbury) wrote :

Microsoft would like to request two kdump related fixes in all releases supported on Azure. The two commits are:

c81992e7f4aa1 ("PCI: hv: Retry PCI bus D0 entry on invalid device state")
83cc3508ffaa6 ("PCI: hv: Fix the PCI HyperV probe failure path to release resource properly")

These are in the virtual PCI driver for Hyper-V. The customer visible symptom is that the network is not functional in the kdump kernel, so the dump file must be stored on the local disk and cannot be written over the network.

The problem only occurs when Accelerated Networking is enabled. It’s a relatively obscure scenario, which is why the problem has not surfaced before now. But we have an important customer who wants the “dump-file-over-the-network” functionality to work.