Public bug reported:
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.
** Affects: linux-azure (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1883261
Title:
[linux-azure] Two Fixes For kdump Over Network
Status in linux-azure package in Ubuntu:
New
Bug description:
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.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1883261/+subscriptions
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