Bug#933967: More information, testing using .link files to rename iface

[Michael Biebl]

On Tue, 6 Aug 2019 09:42:15 -0400 Kathryn Tolsen
<katybethtolsen at gmail.com> wrote:
> > Which version is this?
> 
> > Is the problem still reproducible?
> 
> root at t440:/home/user# dpkg -l systemd udev linux-image-amd64;cat
> /etc/systemd/network/70-wifi.link;dmesg|tail -n 31
> Desired=Unknown/Install/Remove/Purge/Hold
> |
> Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
> |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
> ||/ Name              Version      Architecture Description
> +++-=================-============-============-===================================
> ii  linux-image-amd64 4.19+105     amd64        Linux for 64-bit PCs
> (meta-package)
> ii  systemd           241-5        amd64        system and service manager
> ii  udev              241-5        amd64        /dev/ and hotplug
> management daemon
> [Match]
> MACAddress=c4:3d:c7:74:f9:9b
> 
> [Link]
> Name=wifi0
> [   59.833725] usb 1-1: new high-speed USB device number 5 using xhci_hcd
> [   59.990838] usb 1-1: New USB device found, idVendor=0846,
> idProduct=4260, bcdDevice= 2.00
> [   59.990844] usb 1-1: New USB device strings: Mfr=1, Product=2,
> SerialNumber=3
> [   59.990847] usb 1-1: Product: NETGEAR WG111v3
> [   59.990850] usb 1-1: Manufacturer: Manufacturer_NETGEAR
> [   59.990852] usb 1-1: SerialNumber: C43DC774F99B
> [   60.768528] ieee80211 phy1: Selected rate control algorithm 'minstrel_ht'
> [   60.769098] ieee80211 phy1: hwaddr c4:3d:c7:74:f9:9b, RTL8187BvE V0 +
> rtl8225z2, rfkill mask 2
> [   60.786783] rtl8187: Customer ID is 0x00
> [   60.787395] rtl8187: wireless switch is on
> [   60.787442] usbcore: registered new interface driver rtl8187
> [   60.804006] rtl8187 1-1:1.0 wlxc43dc774f99b: renamed from wlan0
> [   60.850461] IPv6: ADDRCONF(NETDEV_UP): wlxc43dc774f99b: link is not ready
> [   63.193129] IPv6: ADDRCONF(NETDEV_UP): wlxc43dc774f99b: link is not ready
> [   66.147517] IPv6: ADDRCONF(NETDEV_UP): wlxc43dc774f99b: link is not ready
> [   66.224888] IPv6: ADDRCONF(NETDEV_UP): wlxc43dc774f99b: link is not ready
> [  162.299965] IPv6: ADDRCONF(NETDEV_UP): wlxc43dc774f99b: link is not ready
> [  164.571920] wlxc43dc774f99b: authenticate with 8c:3b:ad:cb:08:6e
> [  164.909574] wlxc43dc774f99b: send auth to 8c:3b:ad:cb:08:6e (try 1/3)
> [  164.911514] wlxc43dc774f99b: authenticated
> [  169.910445] wlxc43dc774f99b: aborting authentication with
> 8c:3b:ad:cb:08:6e by local choice (Reason: 3=DEAUTH_LEAVING)
> [  172.471431] wlxc43dc774f99b: authenticate with 8c:3b:ad:cb:08:6e
> [  172.797357] wlxc43dc774f99b: send auth to 8c:3b:ad:cb:08:6e (try 1/3)
> [  172.799288] wlxc43dc774f99b: authenticated
> [  177.801182] wlxc43dc774f99b: aborting authentication with
> 8c:3b:ad:cb:08:6e by local choice (Reason: 3=DEAUTH_LEAVING)
> [  180.740423] wlxc43dc774f99b: authenticate with 8c:3b:ad:cb:08:6e
> [  181.081228] wlxc43dc774f99b: send auth to 8c:3b:ad:cb:08:6e (try 1/3)
> [  181.085033] wlxc43dc774f99b: authenticated
> [  186.082430] wlxc43dc774f99b: aborting authentication with
> 8c:3b:ad:cb:08:6e by local choice (Reason: 3=DEAUTH_LEAVING)
> [  187.168136] IPv6: ADDRCONF(NETDEV_UP): wlxc43dc774f99b: link is not ready
> [  190.079680] IPv6: ADDRCONF(NETDEV_UP): wlxc43dc774f99b: link is not ready
> 

Hm, you probably need to blacklist
/lib/udev/rules.d/73-usb-net-by-mac.rules. You can do that by creating a
file /etc/udev/rules.d/73-usb-net-by-mac.rules pointing at /dev/null

After that (and running update-initramfs -u), 70-wifi.link should become
active and you should be able to test, if incrementally increasing the
length of the iface name at some point triggers the problem.
-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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