Hi Bj�rn, Your testing causes more hibernate problems raised on issue machine. (In reply to Bj�rn Voigt from comment #37) > After lots of successful suspend/resume cycles in the last days, I have a > failed resume operation with Kernel 3.12.38 and patch > kill_e820_reserved_kern.patch again. > > [ 3.334134] PM: Using 3 thread(s) for decompression. > PM: Loading and decompressing image data (1884119 pages)... > [ 3.334138] PM: Image mismatch: memory size The above is another strange thing for memory size changed when resuming. This issue also happened on dmesg on comment#10. That's before you apply kill_e820_reserved_kern.patch, so should NOT relates to kill_e820_reserved_kern.patch. This issue is another one. Before tracing more about this proble, I have a question about the hibernate mode on your machine. Are you using [platform] more but not other mode on your machine? $ cat /sys/power/disk [platform] shutdown reboot suspend Thanks