lkml.org 
[lkml]   [2012]   [Feb]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH] module: debugging check for runaway kthreads
Date
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.


\
 
 \ /
  Last update: 2012-03-01 02:41    [from the cache]
©2003-2011 Jasper Spaans