Had this happen on a regular lucid S3 instance today:
[ 0.944176] NET: Registered protocol family 17
[ 0.944293] registered taskstats version 1
[ 1.046692] /build/buildd/linux-ec2-2.6.32/drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[ 1.149594] kjournald starting. Commit interval 5 seconds
[ 1.149592] EXT3-fs: mounted filesystem with writeback data mode.
[ 1.149603] VFS: Mounted root (ext3 filesystem) readonly on device 8:1.
[ 1.207051] devtmpfs: mounted
[ 1.207160] Freeing unused kernel memory: 228k freed
[ 1.207281] Write protecting the kernel read-only data: 6416k
init: console-setup main process (79) terminated with status 1
%Gmountall: Disconnected from Plymouth
init: plymouth main process (61) killed by SEGV signal
init: plymouth-splash main process (256) terminated with status 2