> I am not sure how to add the tag "Fixes"... How helpful do you find the available software documentation? https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?id=47cf1b422e6093aee2a3e55d5e162112a2c69870#n183 > I need to find which previous commit add the code about txBegin()? I suggest to take another look at corresponding source code places by a command like “git blame”. https://git-scm.com/book/en/v2/Git-Tools-Debugging-with-Gits Regards, Markus