On 16.03.21 09:43, Liang, Liang (Leo) wrote:
[AMD Public Use]
Hi David,
Thanks for your explanation. We saw slow boot issue on our farm/QA's machines and mine. All of machines are same SoC/board.
I cannot spot anything really special in the logs -- it's just ordinary
system ram -- except:
[ 0.000027] MTRR fixed ranges enabled:
[ 0.000028] 00000-9FFFF write-back
[ 0.000029] A0000-BFFFF uncachable
[ 0.000030] C0000-FFFFF write-through
[ 0.000031] MTRR variable ranges enabled:
[ 0.000032] 0 base 000000000000 mask FFFF80000000 write-back
[ 0.000034] 1 base 0000FFE00000 mask FFFFFFE00000 write-protect
[ 0.000035] 2 base 000100000000 mask FFFFFF000000 write-protect
[ 0.000036] 3 base 0000FFDE0000 mask FFFFFFFE0000 write-protect
[ 0.000038] 4 base 0000FF000000 mask FFFFFFF80000 write-protect
[ 0.000039] 5 disabled
[ 0.000039] 6 disabled
[ 0.000040] 7 disabled
Not sure if "2 base 000100000000" indicates something nasty. Not sure
how to interpret the masks.
Can you provide the output of "cat /proc/mtrr" ?
--
Thanks,
David / dhildenb
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