The bug seems config-dependent, since if I compile Ubuntu-3.7.0-3.9 with defconfig, the resulting kernel can successfully suspend from the initramfs, while linux-image-3.7.0-3-generic cannot.
The bug seems config-dependent, since if I compile Ubuntu-3.7.0-3.9 with defconfig, the resulting kernel can successfully suspend from the initramfs, while linux-image- 3.7.0-3- generic cannot.