On 01/23/2013 05:29 PM, Kay Sievers wrote:
What udev does here is the only sensible thing to do, if there is no authoritative information from the firmware about that, we don't make assumptions, we use the reasonable stable PCI geography. Guessing around which might the "human" slot number should be avoided for many reasons.
FWIW - I did a BIOS upgrade and reconfig on one of our machines and the PCI slot numbers as shown in lscpi changed for our SATA controllers. Caused a bit of panic when we ended up pulling the wrong drive. Perhaps the BIOS assisted names would have been more stable in this case for the ethernet names, I don't know.
I'm not trying to disparage this work, it seems reasonable (although I've been bitten by a lot of crappy software assuming network devices are named eth#, but it's able to be turned off, so meh). Just passing along a data point. YMMV and all that.
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