[jira] [Assigned] (IMPALA-6259) Remove workaround for posix_memalign in SystemAllocator after LLVM 5.0 upgrade

["Tim Armstrong (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-6259?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Armstrong reassigned IMPALA-6259:
-------------------------------------

    Assignee: Sahil Takiar  (was: Bikramjeet Vig)

> Remove workaround for posix_memalign in SystemAllocator after LLVM 5.0 upgrade
> ------------------------------------------------------------------------------
>
>                 Key: IMPALA-6259
>                 URL: https://issues.apache.org/jira/browse/IMPALA-6259
>             Project: IMPALA
>          Issue Type: Improvement
>          Components: Backend
>    Affects Versions: Impala 2.11.0
>            Reporter: Tim Armstrong
>            Assignee: Sahil Takiar
>            Priority: Major
>
> Once we upgrade to LLVM 5.0 we should be able to remove a workaround for https://bugs.llvm.org/show_bug.cgi?id=32968 : 
> {code}
> #ifdef ADDRESS_SANITIZER
>   // Workaround ASAN bug where posix_memalign returns 0 even when allocation fails.
>   // It should instead return ENOMEM. See https://bugs.llvm.org/show_bug.cgi?id=32968.
>   if (rc == 0 && *buffer_mem == nullptr && len != 0) rc = ENOMEM;
> #endif
> {code}



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