Just installed the kernel.org version of kernel 3.18-rc4 on the Odroid U3, and this time it completed the boot, but still had a ‘tombstone’:

...............
cam-power-domain: Power-on latency exceeded, new value 413333 ns
cam-power-domain: Power-on latency exceeded, new value 564291 ns
Unable to handle kernel NULL pointer dereference at virtual address 00000010
pgd = ee328000
[00000010] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
Modules linked in: exynosdrm(+) snd_pcm snd_timer drm_kms_helper snd drm ipv6
CPU: 3 PID: 2386 Comm: systemd-udevd Not tainted 3.18.0-rc4 #1
task: edaaa640 ti: ed78a000 task.ti: ed78a000
PC is at g2d_fini_cmdlist+0x2c/0x68 [exynosdrm]
LR is at g2d_fini_cmdlist+0x1c/0x68 [exynosdrm]
pc : [<bf2c6bc0>] lr : [<bf2c6bb0>] psr: 800e0053
sp : ed78bbd8 ip : ed746f94 fp : ed78bbf4
systemd-journald[1526]: Received request to flush runtime journal from PID 1
r10: ed78a008 r9 : 00000000 r8 : 00000000
r7 : bf2d6abc r6 : ee27fc00 r5 : bf2d7e14 r4 : ed746f10
r3 : 00000000 r2 : 00000000 r1 : 00000000 r0 : 00000000
Flags: Nzcv IRQs on FIQs off Mode SVC_32 ISA ARM Segment user
Control: 10c5387d Table: 6e32804a DAC: 00000015
Process systemd-udevd (pid: 2386, stack limit = 0xed78a240)
Stack: (0xed78bbd8 to 0xed78c000)
bbc0: ed746f10 bf2d7e14
.....etc.......

Fedora release 21 (Twenty One)
Kernel 3.18.0-rc4 on an armv7l (ttySAC1)
...............
$ uname -a
Linux rgodroid 3.18.0-rc4 #1 SMP PREEMPT Sun Nov 9 23:50:46 EST 2014 armv7l armv7l armv7l GNU/Linux

The other annoyance (same as with -rc3) is that the CPU fan is running constantly…

As this is the mainline kernel version, some of the graphics drivers etc. are still work-in-progress..    I have tested with vnc, and that works OK with KDE, but performance is still very sluggish..

Odroid U3 KDE Screenshot

Robert Gadsdon.   November 9, 2014..