Hrm, it's already filled with r8169 error messages, so it's no use, unfortunately. I'm building a test kernel with some r8169 fix patches. It's being built in OBS home:tiwai:bsc1094928 repo. Could you try it later? Meanwhile, if you can reproduce the hibernation failure now, please try to kill some fat user-spaces. Or simply re-login (not reboot) the X session. Then retest hibernation (with writing to /sys/power/state). The error message "bash: echo: write error: No space left on device" may indicate that the swap partition is too small and doesn't fit any longer to save the whole used pages for hibernation.