Hi,
In kernel-parameters.txt, there is following description:
memmap=nn[KMG]$ss[KMG]
[KNL,ACPI] Mark specific memory as reserved.
Region of memory to be used, from ss to ss+nn.
Unfortunately this is incorrect. The meaning of nn and ss is reversed.
For example:
Command Expected Result
memmap 2G$6G 6G - 8G reserved 2G - 8G reserved
memmap 6G$2G 2G - 8G reserved 6G - 8G reserved
Test kernel version 3.13, but I believe the issue has been there long ago.
I'm not sure whether the description or implementation should be
fixed, but apparently they do not match.
Thanks,
Andiry
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