[systemd-devel] console device times out at boot while it is available

[winfried.dobbe at xmsnet.nl]

Hi,

I'm trying to get systemd to work on an Freescale imx6 device (Yocto 1.8).
Everything works, except that the console device (dev-ttymxc1.device)
times out after boot (and thus the serial-getty at ttymxc1.service as well):

root at cgtqmx6:~# systemctl status dev-ttymxc1.device
● dev-ttymxc1.device
   Loaded: loaded
   Active: inactive (dead)

Dec 01 14:58:07 cgtqmx6 systemd[1]: Job dev-ttymxc1.device/start timed out.
Dec 01 14:58:07 cgtqmx6 systemd[1]: Timed out waiting for device
dev-ttymxc1.device.
Dec 01 14:58:07 cgtqmx6 systemd[1]: Job dev-ttymxc1.device/start failed
with result 'timeout'.


But while the start job for dev-ttymxc1.device is counting down towards
timeout, the device is actually present in sysfs and the udev database (no
unit files defined for dev-ttymxc1.device):

root at cgtqmx6:~# ls 
/sys/devices/soc0/soc.0/2100000.aips-bus/21e8000.serial/tty/ttymxc1/
close_delay  closing_wait  custom_divisor  dev  device  flags  io_type 
iomem_base  iomem_reg_shift  irq  line  port  power  subsystem  type 
uartclk  uevent  xmit_fifo_size

root at cgtqmx6:~# udevadm info -e
<snip>
P: /devices/soc0/soc.0/2100000.aips-bus/21e8000.serial/tty/ttymxc1
N: ttymxc1
E: DEVNAME=/dev/ttymxc1
E: DEVPATH=/devices/soc0/soc.0/2100000.aips-bus/21e8000.serial/tty/ttymxc1
E: MAJOR=207
E: MINOR=17
E: SUBSYSTEM=tty
E: TAGS=:systemd:
E: USEC_INITIALIZED=1806


And when I login via ssh and run 'systemctl daemon-reload' suddenly the
dev-ttymxc1.device is available:

root at cgtqmx6:~# systemctl status dev-ttymxc1.device
● dev-ttymxc1.device - /dev/ttymxc1
   Follow: unit currently follows state of
sys-devices-soc0-soc.0-2100000.aips\x2dbus-21e8000.serial-tty-ttymxc1.device
   Loaded: loaded
   Active: active (plugged)
   Device:
/sys/devices/soc0/soc.0/2100000.aips-bus/21e8000.serial/tty/ttymxc1



Any tips why systemd doesn't pick up the console device at boot or how to
debug this further will be appreciated. Yocto 1.8 uses systemd 219.

Best regards,
Winfried