Description of problem: On a specific machine, biosdevname usually assigns the name "em2" to the only ethernet interface. After rebooting recently, it instead assigned the name "em1" to this interface. If I run biosdevname manually, it reports that the name should be "em2": # biosdevname -i em1 em2 # biosdevname --policy physical -i em1 em2 # Running "ifconfig -a" reports that the only interfaces are "em1", "lo", "wlan0", and "virbr0". Inconsistent interface names cause network configuration to fail at boot. This is a pretty serious, though unpredictable problem. Version-Release number of selected component (if applicable): biosdevname-0.4.1-1.fc17.i686 How reproducible: So far just once. Usually the name is "em2" (and everything works), but this time it was "em1" (and network initialization fails). Steps to Reproduce: 1. Boot. Actual results: Ethernet interface is named "em1". Since there is a /etc/sysconfig/network-scripts/ifcfg-em2 file from the installer, but no ifcfg-em1 script, networking fails to start. Expected results: Ethernet interface should be named "em2" as usual. Additional info:
For what it's worth, this has now happened three more times, and it seems to be coming up with the inconsistent name "em1" a bit more often than "em2".
Please attach the output from the following - 1. dmidecode 2. biosdecode 3. biosdevname -d 4. 'lspci -tv' and 'lspci -vvvxxx'
Created attachment 604990 [details] dmidecode output
Created attachment 604991 [details] lspci -tv output
Created attachment 604992 [details] biodecode output
Created attachment 604993 [details] lspci -vvvxxx output
Created attachment 604994 [details] biosdevname -d output
As you might notice from the biosdevname -d output, I turned off biosdevname on the kernel command line as a work around.
Hmm, this is an Atheros Wifi card. I thought biosdevname had blacklisted that card... looks like this is a different PCI Vendor/Device code than previous cards. See RedHat bugzilla 801885, 789635, 781572
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