Re: Missing some RAM?
Aug 3, 2021, 10:05 by sven@svenhartge.de:
> The PCI memory area is probably to blame here. Also the kernel needs
> some memory for itself.
>
> Please reboot your system and then, as root do:
>
> dmesg | grep "e820"
>
> and post the output. That will tell us the memory map of your system and
> which regions are used or reserved.
>
# dmesg | grep "e820"
[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009c7ff] usable
[ 0.000000] BIOS-e820: [mem 0x000000000009f800-0x000000000009ffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000afdeffff] usable
[ 0.000000] BIOS-e820: [mem 0x00000000afdf0000-0x00000000afdf2fff] ACPI NVS
[ 0.000000] BIOS-e820: [mem 0x00000000afdf3000-0x00000000afdfffff] ACPI data
[ 0.000000] BIOS-e820: [mem 0x00000000afe00000-0x00000000afefffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000e0000000-0x00000000efffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x00000000fec00000-0x00000000ffffffff] reserved
[ 0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000022fffffff] usable
[ 0.005949] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[ 0.005951] e820: remove [mem 0x000a0000-0x000fffff] usable
[ 0.014336] e820: update [mem 0xafe00000-0xffffffff] usable ==> reserved
[ 0.221537] Aperture pointing to e820 RAM. Ignoring.
[ 0.438742] e820: reserve RAM buffer [mem 0x0009c800-0x0009ffff]
[ 0.438743] e820: reserve RAM buffer [mem 0xafdf0000-0xafffffff]
Thanks,
Reply to: