hibernation image size

arden jay arden.jay at gmail.com
Mon Jun 17 05:34:36 EDT 2013


Hi,

I'm trying to decrease hibernation image size.
It's now, normal:21762, high: 8883 pages.

Dump /proc/vmalloc, I can see those occupied high memory region.

For example:
0xd99f8000-0xd99fd000   20480 init_mmdc_settings+0x3c/0x410 ioremap
...
0xd9a1e000-0xd9a3b000  118784 gckOS_AllocateMemory+0x44/0x60 pages=28
vmalloc

For those ioremap region, pfn_valid check won't pass, so they shouldn't
save in hibernation image, right?

And I can see some vmalloc, I think those will be saved in hibernation
image.
To sum those vmalloc regions, I can't get the number calculated in
count_highmem_pages.

Can anyone show me how to dig out further?

-- 
cheers,
jay
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