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From "Tim Armstrong (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IMPALA-5590) Impala can crash if mprotect() of jitted code fails.
Date Tue, 27 Jun 2017 21:46:00 GMT
Tim Armstrong created IMPALA-5590:
-------------------------------------

             Summary: Impala can crash if mprotect() of jitted code fails.
                 Key: IMPALA-5590
                 URL: https://issues.apache.org/jira/browse/IMPALA-5590
             Project: IMPALA
          Issue Type: Bug
          Components: Backend
    Affects Versions: Impala 2.10.0
            Reporter: Tim Armstrong


LLVM doesn't return the appropriate error code to us because of https://bugs.llvm.org/show_bug.cgi?id=33616.

The consequences are unpredictable but could include us trying to execute non-executable memory
and crashing.

Once it's fixed in LLVM we'll need to check the error code.



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