Predictable naming mechanism is leading to issues in DLPAR operations of NICs
Bug #1560514 reported by
bugproxy
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Medium
|
Tim Gardner | ||
Xenial |
Fix Released
|
Medium
|
Tim Gardner |
Bug Description
Recent kernels are using predictable naming for network interfaces, so the network stack is more tied to PCI naming. This can be a problem in hotplug scenarios, because PCI addresses will change if devices are removed and then re-added. This situation seems unusual, but it can happen if a user wants to replace a NIC without rebooting the machine, for example.
The patch attached here should deal with this situation, since it makes PHB/domain number fixed based on device-tree properties.
The problem can be reproduced by removing and re-adding a PCI network adapter, so its address will change and, per predictable naming scheme, so is the interface name.
affects: | ubuntu → linux (Ubuntu) |
Changed in linux (Ubuntu): | |
assignee: | Taco Screen team (taco-screen-team) → Canonical Kernel Team (canonical-kernel-team) |
importance: | Undecided → Medium |
status: | New → Triaged |
Changed in linux (Ubuntu Xenial): | |
assignee: | Canonical Kernel Team (canonical-kernel-team) → Tim Gardner (timg-tpi) |
status: | Triaged → Fix Committed |
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