Bug#1063151: igb: unpredictable interface names for four port nic

[Václav Ovsík]

Is it definitely a BIOS problem? If yes, we can close the bug of course.

I have a little bit of time to investigate the problem further:
(My knowledge is limited)

 kory:/sys/bus/pci# for x in $(find . -name 'address' -print|sort); do echo -n "$x       "; cat $x; done
 ./slots/0-1/address     0000:3a:00
 ./slots/0-2/address     0000:3a:02
 ./slots/0-3/address     0000:5d:02
 ./slots/0/address       0000:17:01
 ./slots/1/address       0000:5d:00
 ./slots/4/address       0000:ae:00
 ./slots/5/address       0000:17:00
 ./slots/6/address       0000:00:1c

 kory:/sys/bus/pci# lspci -tvv|head -25
 -+-[0000:00]-+-00.0  Intel Corporation Sky Lake-E DMI3 Registers
  |           +-05.0  Intel Corporation Sky Lake-E MM/Vt-d Configuration Registers
  |           +-05.2  Intel Corporation Sky Lake-E RAS
  |           +-05.4  Intel Corporation Sky Lake-E IOAPIC
  |           +-08.0  Intel Corporation Sky Lake-E Ubox Registers
  |           +-08.1  Intel Corporation Sky Lake-E Ubox Registers
  |           +-08.2  Intel Corporation Sky Lake-E Ubox Registers
  |           +-11.0  Intel Corporation C620 Series Chipset Family MROM 0
  |           +-11.5  Intel Corporation C620 Series Chipset Family SSATA Controller [AHCI mode]
  |           +-14.0  Intel Corporation C620 Series Chipset Family USB 3.0 xHCI Controller
  |           +-14.2  Intel Corporation C620 Series Chipset Family Thermal Subsystem
  |           +-16.0  Intel Corporation C620 Series Chipset Family MEI Controller #1
  |           +-16.1  Intel Corporation C620 Series Chipset Family MEI Controller #2
  |           +-16.4  Intel Corporation C620 Series Chipset Family MEI Controller #3
  |           +-17.0  Intel Corporation C620 Series Chipset Family SATA Controller [AHCI mode]
  |           +-1c.0-[01]--+-00.0  Intel Corporation I350 Gigabit Network Connection
  |           |            +-00.1  Intel Corporation I350 Gigabit Network Connection
  |           |            +-00.2  Intel Corporation I350 Gigabit Network Connection
  |           |            \-00.3  Intel Corporation I350 Gigabit Network Connection
  |           +-1c.4-[02-03]----00.0-[03]----00.0  Matrox Electronics Systems Ltd. Integrated Matrox G200eW3 Graphics Controller
  |           +-1c.5-[04]--+-00.0  Broadcom Inc. and subsidiaries NetXtreme BCM5720 Gigabit Ethernet PCIe
  |           |            \-00.1  Broadcom Inc. and subsidiaries NetXtreme BCM5720 Gigabit Ethernet PCIe
  |           +-1f.0  Intel Corporation C621 Series Chipset LPC/eSPI Controller
  |           +-1f.2  Intel Corporation C620 Series Chipset Family Power Management Controller
  |           +-1f.4  Intel Corporation C620 Series Chipset Family SMBus


 kory:/sys/bus/pci# lspci -nnv|sed -n '/^00:1c/,/^$/ p;' |grep -Pi '^0|devname|slot'
 00:1c.0 PCI bridge [0604]: Intel Corporation C620 Series Chipset Family PCI Express Root Port #1 [8086:a190] (rev f9) (prog-if 00 [Normal decode])
         DeviceName: SLOT 6
         Physical Slot: 6
         Capabilities: [40] Express Root Port (Slot+), MSI 00
 00:1c.4 PCI bridge [0604]: Intel Corporation C620 Series Chipset Family PCI Express Root Port #5 [8086:a194] (rev f9) (prog-if 00 [Normal decode])
         Physical Slot: 6
         Capabilities: [40] Express Root Port (Slot+), MSI 00
 00:1c.5 PCI bridge [0604]: Intel Corporation C620 Series Chipset Family PCI Express Root Port #6 [8086:a195] (rev f9) (prog-if 00 [Normal decode])
         Physical Slot: 6
         Capabilities: [40] Express Root Port (Slot-), MSI 00

Any idea what to gather next?
Thanks
-- 
Zito