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  1. MariaDB Server
  2. MDEV-37048

revert MSAN my_vsnprintf_ex for double workaround

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    Description

      5 years ago https://github.com/MariaDB/server/commit/e843033d0233927b8f51d7dbe21993bdfb01ecdf worked around a MSAN bug when retrieving a double from a va_list.

      The construct _msan_check_mem_is_initialized(ap,size) where ap is a va_list is undefined as _msan_check_mem_is_initialized expects a pointer. The implementation detail of va_list is archecture dependant and on aarch64 this isn't a pointer.

      The need to any msan action is no unnecessary since this has been corrected in recent clang versions.

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          blocks

          Task - A task that needs to be done. MDBF-1076 create MSAN Debug builder

          • Major - Major loss of function.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-37459 MSAN: use-of-uninitialized-value in process_dbl_arg on SELECT when optimizer_trace is active

          • Major - Major loss of function.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. MDEV-22690 MSAN use-of-uninitialized-value in optimizer_trace

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-22691 MSAN use-of-uninitialized-value in test maria.maria-recovery2

          • Major - Major loss of function.
          • Closed

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              marko Marko Mäkelä
              danblack Daniel Black
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