[systemd-devel] Random "busy" while renaming net interface on KVM

[Gerardo Exequiel Pozzi]

Hello

During testing Arch Linux ISO under KVM (1.2.0) (using systemd 197),
looks like when rename rules must be applied network interface is still
busy.

You can see on the journal, when things goes bad:


Jan 31 16:27:53 archiso kernel: pci 0000:00:03.0: [10ec:8139] type 00
class 0x020000
Jan 31 16:27:53 archiso kernel: 8139cp: 8139cp: 10/100 PCI Ethernet
driver v1.3 (Mar 22, 2004)
Jan 31 16:27:53 archiso kernel: 8139cp 0000:00:03.0 eth0: RTL-8139C+ at
0xc894e000, 52:54:00:12:34:56, IRQ 11
Jan 31 16:27:53 archiso kernel: 8139cp 0000:00:03.0: setting latency
timer to 64
Jan 31 16:27:53 archiso kernel: 8139too: 8139too Fast Ethernet driver 0.9.28
Jan 31 16:27:53 archiso kernel: 8139cp 0000:00:03.0 eth0: link up,
100Mbps, full-duplex, lpa 0x05E1
Jan 31 16:27:54 archiso systemd-udevd[171]: error changing net interface
name eth0 to enp0s3: Device or resource busy

and good:

Jan 31 16:29:14 archiso kernel: pci 0000:00:03.0: [10ec:8139] type 00
class 0x020000
Jan 31 16:29:14 archiso kernel: 8139cp: 8139cp: 10/100 PCI Ethernet
driver v1.3 (Mar 22, 2004)
Jan 31 16:29:14 archiso kernel: 8139cp 0000:00:03.0 eth0: RTL-8139C+ at
0xc895c000, 52:54:00:12:34:56, IRQ 11
Jan 31 16:29:14 archiso kernel: 8139cp 0000:00:03.0: setting latency
timer to 64
Jan 31 16:29:14 archiso kernel: 8139too: 8139too Fast Ethernet driver 0.9.28
Jan 31 16:29:14 archiso systemd-udevd[150]: renamed network interface
eth0 to enp0s3
Jan 31 16:29:14 archiso kernel: 8139cp 0000:00:03.0 enp0s3: link up,
100Mbps, full-duplex, lpa 0x05E1


If more info is needed please let me know.


-- 
Gerardo Exequiel Pozzi
\cos^2\alpha + \sin^2\alpha = 1

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