Public bug reported:
SRU Justification
[Impact]
When kernel boots with a NUMA topology with some NUMA nodes offline, the PCI
driver should only set an online NUMA node on the device. This can happen
during KDUMP where some NUMA nodes are not made online by the KDUMP kernel.
This patch also fixes the case where kernel is booting with "numa=off".
Fixes: 999dd956d838 ("PCI: hv: Add support for protocol 1.3 and support
PCI_BUS_RELATIONS2")
[Test Case]
Microsoft tested.
[Where things could go wrong]
NUMA node assignments could be wrong.
[Other Info]
SF: #00323281
** Affects: linux-azure (Ubuntu)
Importance: Undecided
Assignee: Tim Gardner (timg-tpi)
Status: Fix Committed
** Affects: linux-azure (Ubuntu Jammy)
Importance: Undecided
Assignee: Tim Gardner (timg-tpi)
Status: Fix Committed
** Package changed: linux (Ubuntu) => linux-azure (Ubuntu)
** Changed in: linux-azure (Ubuntu)
Assignee: (unassigned) => Tim Gardner (timg-tpi)
** Also affects: linux-azure (Ubuntu Jammy)
Importance: Undecided
Assignee: Tim Gardner (timg-tpi)
Status: New
** Changed in: linux-azure (Ubuntu Jammy)
Status: New => Fix Committed
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https://bugs.launchpad.net/bugs/1961300
Title:
linux-azure: Fix NUMA node assignment when kernel boots with custom
NUMA topology
Status in linux-azure package in Ubuntu:
Fix Committed
Status in linux-azure source package in Jammy:
Fix Committed
Bug description:
SRU Justification
[Impact]
When kernel boots with a NUMA topology with some NUMA nodes offline, the PCI
driver should only set an online NUMA node on the device. This can happen
during KDUMP where some NUMA nodes are not made online by the KDUMP kernel.
This patch also fixes the case where kernel is booting with "numa=off".
Fixes: 999dd956d838 ("PCI: hv: Add support for protocol 1.3 and
support PCI_BUS_RELATIONS2")
[Test Case]
Microsoft tested.
[Where things could go wrong]
NUMA node assignments could be wrong.
[Other Info]
SF: #00323281
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https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1961300/+subscriptions
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