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SubjectRe: 2.6.29-rc2 regression: hibernation hang on eeepc-701 (method "platform" only)
On 1/18/09, Alan Jenkins <> wrote:
> Hibernation hangs just after writing the image. With s2disk I can see
> this from the console messages. The same hang happens with kernel
> swsusp ('echo disk | sudo tee /sys/power/state'), and I can see that
> the image has been written from the HDD led.
> In either case, I can still hard-power-off and resume from hibernation.
> It doesn't hang if I use the shutdown method (either 'echo shutdown |
> sudo tee /sys/power/disk' or 's2disk -P "shutdown method=shutdown"').

As a wild guess I tried "acpi_sleep=s4_nonvs", but it didn't help.

In fact it didn't seem to work. The kernel log says that NVS was
still saved and restored.

$ dmesg | grep -i nvs
[ 0.000000] BIOS-e820: 000000001f790000 - 000000001f7d0000 (ACPI NVS)
[ 0.000000] Kernel command line: root=/dev/sda2 ro resume=/dev/sda2
resume_offset=144480 quiet acpi_sleep=s4_nonvs
[ 91.105449] PM: Saving platform NVS memory
[ 91.106707] PM: Restoring platform NVS memory


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