alexfanqi added a comment.

>> While testing compiler-rt/test/tsan/RISCV64Config only 
>> compiler-rt/test/tsan/mmap_lots.cpp failed. I couldn't run all the 
>> compiler-rt tests on Licheepi because it is very slow

I had this only test failure before. When the upper memory space is fully 
mapped out, the kernel will try to use the lower memory range starting from 
0x00, but kLoAppMem leaves out the initial 0x00-0x1000. I saw other archs did 
the same, and maybe it won't hurt.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D145214/new/

https://reviews.llvm.org/D145214

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