* out-of-tree module shouldn't disable lockdep
@ 2011-12-22 16:59 Tejun Heo
2011-12-22 17:07 ` Tejun Heo
0 siblings, 1 reply; 2+ messages in thread
From: Tejun Heo @ 2011-12-22 16:59 UTC (permalink / raw)
To: Ben Hutchings, Dave Jones, Greg Kroah-Hartman, Rusty Russell,
Peter Zijlstra, Ingo Molnar
Cc: linux-kernel
Hello, guys.
2449b8ba074 "module,bug: Add TAINT_OOT_MODULE flag for modules not
built in-tree" added TAINT_OOT_MODULE to mark kernel which has
out-of-tree module loaded, which might be a good idea but an
unfortunate side effect of tainting is that it disables lockdep. So,
now, none of my test modules is watched by lockdep. This is a bad bad
idea. People use oot modules to write test code and disabling lockdep
for test codes is silly. Can we please fix this?
Thanks.
--
tejun
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: out-of-tree module shouldn't disable lockdep
2011-12-22 16:59 out-of-tree module shouldn't disable lockdep Tejun Heo
@ 2011-12-22 17:07 ` Tejun Heo
0 siblings, 0 replies; 2+ messages in thread
From: Tejun Heo @ 2011-12-22 17:07 UTC (permalink / raw)
To: Ben Hutchings, Dave Jones, Greg Kroah-Hartman, Rusty Russell,
Peter Zijlstra, Ingo Molnar
Cc: linux-kernel
On Thu, Dec 22, 2011 at 08:59:52AM -0800, Tejun Heo wrote:
> Hello, guys.
>
> 2449b8ba074 "module,bug: Add TAINT_OOT_MODULE flag for modules not
> built in-tree" added TAINT_OOT_MODULE to mark kernel which has
> out-of-tree module loaded, which might be a good idea but an
> unfortunate side effect of tainting is that it disables lockdep. So,
> now, none of my test modules is watched by lockdep. This is a bad bad
> idea. People use oot modules to write test code and disabling lockdep
> for test codes is silly. Can we please fix this?
Ingo just told me it's already fixed and scheduled for upstream, so
please forget about this thread.
Thanks.
--
tejun
^ permalink raw reply [flat|nested] 2+ messages in thread
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