Re: [PATCH 01/12][RFC v3] x86, hibernate: Fix nosave_regions setup for hibernation

2018-09-20 Thread Pavel Machek
On Wed 2018-09-19 15:37:15, Chen Yu wrote: > From: Zhimin Gu > > On 32bit systems, nosave_regions(non RAM areas) located between > max_low_pfn and max_pfn are not excluded from hibernation snapshot > currently, which may result in a machine check exception when > trying to access these unsafe

Re: [PATCH 01/12][RFC v3] x86, hibernate: Fix nosave_regions setup for hibernation

2018-09-20 Thread Pavel Machek
On Wed 2018-09-19 15:37:15, Chen Yu wrote: > From: Zhimin Gu > > On 32bit systems, nosave_regions(non RAM areas) located between > max_low_pfn and max_pfn are not excluded from hibernation snapshot > currently, which may result in a machine check exception when > trying to access these unsafe

Re: [PATCH 01/12][RFC v3] x86, hibernate: Fix nosave_regions setup for hibernation

2018-09-19 Thread Rafael J. Wysocki
On Wed, Sep 19, 2018 at 9:30 AM Chen Yu wrote: > > From: Zhimin Gu > > On 32bit systems, nosave_regions(non RAM areas) located between > max_low_pfn and max_pfn are not excluded from hibernation snapshot > currently, which may result in a machine check exception when > trying to access these

Re: [PATCH 01/12][RFC v3] x86, hibernate: Fix nosave_regions setup for hibernation

2018-09-19 Thread Rafael J. Wysocki
On Wed, Sep 19, 2018 at 9:30 AM Chen Yu wrote: > > From: Zhimin Gu > > On 32bit systems, nosave_regions(non RAM areas) located between > max_low_pfn and max_pfn are not excluded from hibernation snapshot > currently, which may result in a machine check exception when > trying to access these

[PATCH 01/12][RFC v3] x86, hibernate: Fix nosave_regions setup for hibernation

2018-09-19 Thread Chen Yu
From: Zhimin Gu On 32bit systems, nosave_regions(non RAM areas) located between max_low_pfn and max_pfn are not excluded from hibernation snapshot currently, which may result in a machine check exception when trying to access these unsafe regions during hibernation: [ 612.800453] Disabling

[PATCH 01/12][RFC v3] x86, hibernate: Fix nosave_regions setup for hibernation

2018-09-19 Thread Chen Yu
From: Zhimin Gu On 32bit systems, nosave_regions(non RAM areas) located between max_low_pfn and max_pfn are not excluded from hibernation snapshot currently, which may result in a machine check exception when trying to access these unsafe regions during hibernation: [ 612.800453] Disabling