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[Bug 1560514] [NEW] Predictable naming mechanism is leading to issues in DLPAR operations of NICs

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Launchpad Bug Tracker <1560514@xxxxxxxxxxxxxxxxxx>
Date: Tue, 22 Mar 2016 15:10:42 -0000
Reply-to: Bug 1560514 <1560514@xxxxxxxxxxxxxxxxxx>
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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: linux (Ubuntu)
     Importance: Undecided
     Assignee: Taco Screen team (taco-screen-team)
         Status: New


** Tags: architecture-ppc64le bugnameltc-139480 severity-medium targetmilestone-inin1604
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Predictable naming mechanism is leading to issues in DLPAR operations of NICs
https://bugs.launchpad.net/bugs/1560514
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