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corrupt

Member

Registered: 2007-06-25

Posts: 74

Naming of ethernet devices is not reliable

Yesterday my ethernet card was enp4s5. Today it is enp3s5. I have not changed any hardware. Why does it happen?

Relevant parts of log:

Aug 11 09:13:27 tenebrae kernel: 8139too: 8139too Fast Ethernet driver 0.9.28
Aug 11 09:13:27 tenebrae kernel: 8139too 0000:04:05.0: enabling device (0000 -> 0003)
Aug 11 09:13:27 tenebrae kernel: 8139too 0000:04:05.0 eth1: RealTek RTL8139 at 0xffff9dfe4329d000, 4c:00:10:73:10:cb, IRQ 20
Aug 11 09:13:27 tenebrae kernel: r8169 0000:02:00.0 enp2s0: renamed from eth0
Aug 11 09:13:27 tenebrae kernel: fuse init (API version 7.26)
Aug 11 09:13:27 tenebrae kernel: 8139too 0000:04:05.0 enp4s5: renamed from eth1

Aug 12 09:09:22 tenebrae kernel: r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
Aug 12 09:09:22 tenebrae kernel: r8169 0000:02:00.0: can't disable ASPM; OS doesn't have ASPM control
Aug 12 09:09:22 tenebrae kernel: r8169 0000:02:00.0 eth0: RTL8168evl/8111evl at 0xffffa5db0328d000, c8:60:00:d9:c2:ea, XID 0c900800 IRQ 26
Aug 12 09:09:22 tenebrae kernel: r8169 0000:02:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
Aug 12 09:09:22 tenebrae kernel: 8139too: 8139too Fast Ethernet driver 0.9.28
Aug 12 09:09:22 tenebrae kernel: 8139too 0000:03:05.0: enabling device (0000 -> 0003)
Aug 12 09:09:22 tenebrae kernel: 8139too 0000:03:05.0 eth1: RealTek RTL8139 at 0xffffa5db03295000, 4c:00:10:73:10:cb, IRQ 20
Aug 12 09:09:22 tenebrae kernel: 8139too 0000:03:05.0 enp3s5: renamed from eth1
Aug 12 09:09:22 tenebrae kernel: AVX version of gcm_enc/dec engaged.
Aug 12 09:09:22 tenebrae kernel: AES CTR mode by8 optimization enabled
Aug 12 09:09:22 tenebrae kernel: r8169 0000:02:00.0 enp2s0: renamed from eth0

Full log: https://www.dropbox.com/s/a6tg4dxrr961j … g.txt?dl=0

seth

Member

Registered: 2012-09-03

Posts: 51,165

Re: Naming of ethernet devices is not reliable

I have not changed any hardware.

Sure?

Aug 11 09:13:27 tenebrae kernel: 8139too 0000:0[b]4[/b]:05.0 enp4s5: renamed from eth1
Aug 12 09:09:22 tenebrae kernel: 8139too 0000:0[b]3[/b]:05.0 enp3s5: renamed from eth1

Looks like there used to be an USB controller on that bus before?

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corrupt

Member

Registered: 2007-06-25

Posts: 74

Re: Naming of ethernet devices is not reliable

I also see this

Aug 11 09:13:18 tenebrae kernel: pci 0000:03:00.0: [1b21:1042] type 00 class 0x0c0330
Aug 11 09:13:18 tenebrae kernel: pci 0000:03:00.0: reg 0x10: [mem 0xfe900000-0xfe907fff 64bit]
Aug 11 09:13:18 tenebrae kernel: pci 0000:03:00.0: PME# supported from D3hot D3cold

I don't understand where it's coming from. Cannot reproduce either. I guess I need to investigate next time it happens.

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 19,785

Re: Naming of ethernet devices is not reliable

Is that a USB device, or a PCIe device?  The naming convention looks like USB

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