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  1. MariaDB Server
  2. MDEV-40341

store read-only sysvars in a read-only root and a read-only segment

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    • Q3/2026 Server Maintenance, Q3/2026 Server Development

    Description

      for read-only sysvars: store them in a read-only data segment, their value in a read-only memroot. "read-only" means mprotect after server startup, see read_only_root in mysqld.cc

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          causes

          Bug - A problem which impairs or prevents the functions of the product. MDEV-40801 ppc64le Debian 12/Ubuntu 24.04 - fails to bootstrap - crash

          • Blocker - Blocks development and/or testing work, production could not run.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-41029 AddressSanitizer: use-after-poison - "install soname ha_rocksdb"

          • Critical - Crashes, loss of data, severe memory leak.
          • Open
          relates to

          Task - A task that needs to be done. MDEV-21145 separate global variables using linker script (ELF)

          • Major - Major loss of function.
          • Open

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              serg Sergei Golubchik
              serg Sergei Golubchik
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                Resolved:

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