Re: [PATCH v2 1/2] rtmutex Real-Time Linux: Fixing kernel BUG at kernel/locking/rtmutex.c:997!

From: Peter Zijlstra
Date: Tue Apr 07 2015 - 06:56:34 EST

On Tue, Apr 07, 2015 at 12:49:16PM +0200, Mike Galbraith wrote:
> If you have a spot where it'd be nice to do that despite it being
> somewhat (koff).. discouraged shall we say, you have to do something
> funky. Thomas had a patch to not raise sirq unconditionally for -rt
> to let nohz_full work, but it needs a lock that's converted to an
> rtmutex in -rt, and which doesn't want to be un-converted. Ergo, get
> funky.

I should probably back away slowly at this point.. but got a reference
to a thread that explains the 'problem'?
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