Re: [Resend][PATCH] x86/power/64: Always create temporary identity mapping correctly

On Wed, Aug 10, 2016 at 10:56 PM, Rafael J. Wysocki [off-list ref] wrote:

On Wed, Aug 10, 2016 at 6:35 PM, Borislav Petkov [off-list ref] wrote:

quoted

On Wed, Aug 10, 2016 at 04:59:40PM +0200, Jiri Kosina wrote:

quoted

Mine is Lenovo thinkpad x200s; I think Boris has been testing it on x230s,

It says "X230" here under the screen.

quoted

but not sure whether any of the latest patches didn't actually fix it for
him.

Haven't tested them yet. I'm waiting for you to test them first since
this is the only machine I have right now and I need it for work.

quoted

The machine I am seeing the issue on, has 2G RAM, with this e820 map:

8G here:

e820: BIOS-provided physical RAM map:
BIOS-e820: [mem 0x0000000000000000-0x000000000009d7ff] usable
BIOS-e820: [mem 0x000000000009d800-0x000000000009ffff] reserved
BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved
BIOS-e820: [mem 0x0000000000100000-0x000000001fffffff] usable
BIOS-e820: [mem 0x0000000020000000-0x00000000201fffff] reserved
BIOS-e820: [mem 0x0000000020200000-0x0000000040003fff] usable
BIOS-e820: [mem 0x0000000040004000-0x0000000040004fff] reserved
BIOS-e820: [mem 0x0000000040005000-0x00000000cec2ffff] usable
BIOS-e820: [mem 0x00000000cec30000-0x00000000dae9efff] reserved
BIOS-e820: [mem 0x00000000dae9f000-0x00000000daf9efff] ACPI NVS
BIOS-e820: [mem 0x00000000daf9f000-0x00000000daffefff] ACPI data
BIOS-e820: [mem 0x00000000dafff000-0x00000000df9fffff] reserved
BIOS-e820: [mem 0x00000000f8000000-0x00000000fbffffff] reserved
BIOS-e820: [mem 0x00000000fec00000-0x00000000fec00fff] reserved
BIOS-e820: [mem 0x00000000fed08000-0x00000000fed08fff] reserved
BIOS-e820: [mem 0x00000000fed10000-0x00000000fed19fff] reserved
BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved
BIOS-e820: [mem 0x00000000fee00000-0x00000000fee00fff] reserved
BIOS-e820: [mem 0x00000000ffc00000-0x00000000ffffffff] reserved
BIOS-e820: [mem 0x0000000100000000-0x000000021e5fffff] usable
BIOS-e820: [mem 0x000000021e600000-0x000000021e7fffff] reserved
debug: ignoring loglevel setting.
NX (Execute Disable) protection: active
SMBIOS 2.7 present.
DMI: LENOVO 2320CTO/2320CTO, BIOS G2ET86WW (2.06 ) 11/13/2012
e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
e820: remove [mem 0x000a0000-0x000fffff] usable
e820: last_pfn = 0x21e600 max_arch_pfn = 0x400000000

So far, I'm unable to reproduce the problem (with the $subject patch
applied) on two different Intel-base machines with 4 Gig and 8 Gig of
RAM.

So I used your .config to generate one for my test machine and with
that I can reproduce.

The hardware configuration doesn't matter, then, the issue is config-related.

Thanks,
Rafael