Hi, Thejaka, On Aug 03, Thejaka Amila J Kanewala via developers wrote: > Hello, > > I am trying to build and run a thread sanitized mysqld binary. In the > CMake configuration, I see the WITH_ASAN option, however, I do not see > an option to build mysqld with the thread sanitizer.
What MariaDB version did you look at? The earliest still supported is 10.4: This is WITH_ASAN option: https://github.com/MariaDB/server/blob/10.4/CMakeLists.txt#L199 This is WITH_TSAN option: https://github.com/MariaDB/server/blob/10.4/CMakeLists.txt#L223 > After making some custom configurations, I was able to build a mysqld > binary with the thread sanitizer (by linking static thread sanitizer), > however, when trying to run it, I got the following error: > > "ThreadSanitizer: sync allocator overflow (65536*1024). Dying." > > This error seems to be coming from the tsan library and seems this error is > caused by too many synchronizations [1]. Reducing the number of threads > also didn't help me with this error. > > So my questions to you experts: > 1. Do you run mysqld with the thread sanitizer ? No, our CI only runs with ASAN, MSAN, and UBSAN. > 2. If yes, could you please share the details. (e.g., CMake > configurations, compiler/linker flags etc.) > 3. If not, any suggestions to overcome the above error ? See above. I've just built with -DWITH_TSAN=ON and didn't get that error of yours. On gcc 12.3.1. I did get a lot of warning: 'atomic_thread_fence' is not supported with '-fsanitize=thread' which should've been expected, https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97868 And thread sanitizer was complaining about statistic_increment() macro, which, indeed, increments a shared variable without any locks. Intentionally, though. Regards, Sergei VP of MariaDB Server Engineering and secur...@mariadb.org _______________________________________________ developers mailing list -- developers@lists.mariadb.org To unsubscribe send an email to developers-le...@lists.mariadb.org
