Excerpts from Paul E. McKenney's message of June 28, 2022 2:54 pm: > All you need to do to get the previous behavior is to add something like > this to your defconfig file: > > CONFIG_RCU_EXP_CPU_STALL_TIMEOUT=21000 > > Any reason why this will not work for you?
As far as I know, I do not require any particular RCU debugging features intended for developers; as an individual user and distro maintainer, I would like to select the option corresponding to "emit errors for unexpected conditions which should be reported upstream", not "emit debugging information for development purposes". Therefore, I think 0 is a suitable setting for me and most ordinary (not tightly controlled) distributions. My concern is that other users and distro maintainers will also have confusion about what value to set and whether the warnings are important, since the help text does not say anything about Android, and "make oldconfig" does not indicate that the default value is different for Android. My suggestion is that the default be set to 0, and if a non-zero value is appropriate for Android, that should be communicated to the Android developers, not made conditional on CONFIG_ANDROID. Thanks, Alex.