Re: [PATCH][v12] PM / hibernate: Verify the consistent of e820 memory map by md5 digest

On Saturday, October 22, 2016 11:03:02 AM joeyli wrote: > Hi Chen Yu, > > On Thu, Oct 20, 2016 at 04:14:52PM +0800, Chen Yu wrote: > > On some platforms, there is occasional panic triggered when > > trying to resume from hibernation, a typical panic looks like: > > > > "BUG: unable to handle kern

Re: [PATCH][v12] PM / hibernate: Verify the consistent of e820 memory map by md5 digest

On Sun, Oct 23, 2016 at 10:01 AM, Pavel Machek wrote: > Hi! > >> > 2. Another case is, this patch replies on comparing the e820_saved, but >> >currently the e820_save might not be strictly the same across >> >hibernation, even if BIOS has provided consistent e820 map - In >> >theory mp

Re: [PATCH][v12] PM / hibernate: Verify the consistent of e820 memory map by md5 digest

Hi! > > 2. Another case is, this patch replies on comparing the e820_saved, but > >currently the e820_save might not be strictly the same across > >hibernation, even if BIOS has provided consistent e820 map - In > >theory mptable might modify the BIOS-provided e820_saved dynamically >

Re: [PATCH][v12] PM / hibernate: Verify the consistent of e820 memory map by md5 digest

Hi Chen Yu, On Thu, Oct 20, 2016 at 04:14:52PM +0800, Chen Yu wrote: > On some platforms, there is occasional panic triggered when > trying to resume from hibernation, a typical panic looks like: > > "BUG: unable to handle kernel paging request at 880085894000 > IP: [] load_image_lzo+0x8c2/0x

[PATCH][v12] PM / hibernate: Verify the consistent of e820 memory map by md5 digest

On some platforms, there is occasional panic triggered when trying to resume from hibernation, a typical panic looks like: "BUG: unable to handle kernel paging request at 880085894000 IP: [] load_image_lzo+0x8c2/0xe70" Investigation carried out by Lee Chun-Yi shows that this is because e820 m