nevi-me commented on pull request #8665:
URL: https://github.com/apache/arrow/pull/8665#issuecomment-727578474


   Reran the tests, failure now confirmed: 
https://github.com/nevi-me/arrow/runs/1402675504#step:8:2084
   
   The C++ implementation has avx512 support, so maybe @kszucs or someone else 
deeply familiar with our CI knows what a probable solution is. Otherwise this 
might be a matter for the mailing list.
   
   My position is that I'm happy to still proceed with merging this, because 
this doesn't break CI for stable and nightly. Else, we could open a separate 
branch where we can merge this into, to avoid @vertexclique having to pile up 
PRs on top of each other.
   It gets very irritating after a while, from my experience with the parquet 
writer.
   This separate branch could also temporarily house ARMv7, as we don't yet 
have CI for it.
   
   ___
   
   @jorgecarleitao what's your opinion on us testing `arrow` separately on 
stable, to ensure that we don't regress? Something like:
   
   ```sh
   # run unit tests, excluding arrow
   cargo test --exclude arrow
   # run unit tests on arrow separately
   pushd arrow
   # run arrow unit tests on stable
   cargo +stable test
   # run arrow unit tests with features, separate test for mutually exclusive 
oens
   cargo test --features "simd"
   cargo test --features "avx512"
   popd
   ```


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