[yocto] [meta-raspberrypi] Network not working after first boot success

[Rich Bayliss]

On 18 July 2013 12:28, Rich Bayliss <richbayliss at gmail.com> wrote:
> On 18 July 2013 12:07, Paul Barker <paul at paulbarker.me.uk> wrote:
>> On 18 July 2013 11:55, Rich Bayliss <richbayliss at gmail.com> wrote:
>>>>>
>>>>> Is this a known issue? Does anyone have any ideas?
>>>>>
>>
>> Could you try running 'ip addr' and 'ip link' instead of 'ifconfig'?
>> Just wondering whether they query information differently and might
>> show something else. The other place to look is in the output of
>> 'dmesg'.
>>
>> Does un-plugging and re-plugging the network cable (without running
>> 'ifup' or 'ifdown') make any difference?
>>
>> --
>> Paul Barker
>>
>> Email: paul at paulbarker.me.uk
>> http://www.paulbarker.me.uk
>
> I have tried unplugging/replugging and it stays down.
>
> I have run the commands and there is a difference, however I also ran
> "lsmod" and there is a big difference.
>
> Working:
> root at raspberrypi:~# lsmod
>     Not tainted
> ipv6 281069 12 - Live 0xbf02c000
> spidev 5343 0 - Live 0xbf022000
> joydev 9477 0 - Live 0xbf01c000
> evdev 9486 0 - Live 0xbf015000
> leds_gpio 2194 0 - Live 0xbf011000
> led_class 3581 1 leds_gpio, Live 0xbf00d000
> spi_bcm2708 4631 0 - Live 0xbf004000
> i2c_bcm2708 3879 0 - Live 0xbf000000
>
> Not working:
> root at raspberrypi:~# lsmod
>     Not tainted
> ipv6 281069 12 - Live 0xbf00d000
> joydev 9477 0 - Live 0xbf007000
> evdev 9486 0 - Live 0xbf000000
>
> At this point, if I then do the "ifdown"/"ifup" dance, my connection
> works, but not more modules are loaded - does this help you guys?
>
> --
> Rich Bayliss

I have connected a serial terminal now, and I can provide boot logs.
It looks like maybe UDEV is causing/part of the issue. When it boots
successfully, then I dont get a "udevadm settle" message:

Starting udev
[    3.085091] smsc95xx v1.0.4
[    3.157196] smsc95xx 1-1.1:1.0: eth0: register 'smsc95xx' at
usb-bcm2708_usb-1.1, smsc95xx USB 2.0 Ethernet, b8:27:eb:e1:f6:e2
[    3.487588] udevd[74]: starting version 182
Starting Bootlog daemon: bootlogd.
[    6.162643] EXT4-fs (mmcblk0p2): re-mounted. Opts:
errors=remount-ro,data=ordered
Configuring network interfaces... udhcpc (v1.21.1) started
Sending discover...
[    9.138863] smsc95xx 1-1.1:1.0: eth0: link up, 100Mbps,
full-duplex, lpa 0xC1E1
Sending discover...
Sending select for 192.168.1.110...
Lease of 192.168.1.110 obtained, lease time 268435455
/etc/udhcpc.d/50default: Adding DNS 192.168.1.254
done.

However when the network is broken I see the following:

Starting udev
[    5.342406] udevd[74]: starting version 182
Starting Bootlog daemon: bootlogd.
[    7.938281] EXT4-fs (mmcblk0p2): re-mounted. Opts:
errors=remount-ro,data=ordered

udevadm settle - timeout of 3 seconds reached, the event queue contains:
  /sys/devices/platform/bcm2708_usb/usb1/1-1/1-1.1/1-1.1:1.0/net/eth0 (980)
  /sys/devices/platform/mmc_host/mmc0/mmc0:8fe4/block/mmcblk0/mmcblk0p1 (985)
  /sys/devices/platform/mmc_host/mmc0/mmc0:8fe4/block/mmcblk0/mmcblk0p2 (986)
Configuring network interfaces... ifup: interface lo already configured
ifup: interface eth0 already configured
done.

--
Rich Bayliss