steveloughran commented on PR #7079:
URL: https://github.com/apache/hadoop/pull/7079#issuecomment-2402228009

   +1 to cutting the validation in raw local; the way the nio reads are 
executed it is safe. 
   
   I should note that it only surfaces with file:// ; ChecksumFS + RawLocal, 
with a large enough file that multiple large ranges to be supplied close 
to/adjac
   
   We missed this because we were only doing small files in the unit tests and 
testing against HDFS and S3 in the full stack tests. "our tests were too good".


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