Re: [PATCH] module: debugging check for runaway kthreads

On Wed, 29 Feb 2012 19:21:13 +0400, Dmitry Antipov dmitry.antipov@linaro.org wrote:

Debugging option CONFIG_MODULE_KTHREAD_CHECK provides a way to check whether all kernel threads created by the module and have used module code as a thread worker function are really exited when the module is unloaded. The following pseudo-code contains example of an error which is likely to be catched with this debugging check:

Nice idea, but that's 101 lines of code, for very little gain.

How about a debug option which unmaps all module pages on removal, and ensures they don't get reused? That might catch a multitude of problems. And yes, I realize it might be a bigger patch...

Thanks, Rusty.