On Tuesday, October 2, 2018 11:20:23 AM CEST Thomas Gleixner wrote: > On Fri, 21 Sep 2018, Chen Yu wrote: > > > Currently there are mainly three bugs in 32bits system when doing > > hibernation: > > 1. The page copy code is not running in safe page, which might > > cause hang during resume. > > 2. There's no text mapping for the final jump address > > of the original kernel, which might cause the system jumping > > into illegal address and causes system hang during resume. > > 3. The restore kernel switches to its own kernel page table(swapper_pg_dir) > > rather than the original kernel page table after all the pages > > been copied back, which might cause invalid virtual-physical > > mapping issue during resume. > > > > To solve these problems: > > > > 1. Copy the code core_restore_code to a safe page, to avoid the instruction > > code been overwritten when image kernel pages are being copied. > > 2. Set up temporary text mapping for the image kernel's jump address, > > so that after all the pages have been copied back, the system could > > jump to this address. > > 3. Switch to the original kernel page table during resume. > > > > Furthermore, MD5 hash check for e820 map is also backported from 64bits > > system. > > > > In order to make this patch set more readable, these fixes are splitted > > into several sub patches. > > > > And use CONFIG_X86_64 to control the common code to be 'activated' for > > 32 bit system during each sub-patch for better maintaining. > > Acked-by: Thomas Gleixner <t...@linutronix.de> > > Rafael, it's all yours :)
Thank you, I have applied the series. This was long overdue, many thanks to everyone involved for taking care of it! Thanks, Rafael
