Messages in this thread | | | Date | Fri, 21 Mar 2014 01:37:51 -0700 (PDT) | From | ivory <> | Subject | Re: [tip:x86/mm] x86, mm: Move reserving low memory later in initialization |
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This patch seems to make the bios_corruption_check not to cover the lowest 64kB of memory anymore but only the lowest 4kB. Was this deliberate? When I use kernel 3.9 or higher I always get low mem corruption message from the bios corruption checker when I resume from suspend.
Below kernel 3.9 I see this boot message: e820 update range: 0000000000000000 - 0000000000010000 (usable) ==> (reserved) ... which is the 64kB.
But on newer kernels the message changed to: e820: update [mem 0x00000000-0x00000fff] usable ==> reserved ... which is only 4kB.
The corrupted low mem areas I get the message for after resuming from suspend is this: Corrupted low memory at c0002d00 (2d00 phys) = 11060000 Corrupted low memory at c0002d04 (2d04 phys) = 80805122 Corrupted low memory at c0002d08 (2d08 phys) = 00860003
How to fix this in kernel 3.9 and higher?
Thanks for your help and best regards.
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