Re: [PATCH 3.14.25-rt22 1/2] rtmutex Real-Time Linux: Fixing kernel BUG at kernel/locking/rtmutex.c:997!
From: Steven Rostedt
Date: Mon Mar 09 2015 - 12:37:01 EST
On Fri, 6 Mar 2015 13:19:21 +0100
Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> wrote:
> * Steven Rostedt | 2015-02-26 09:06:10 [-0500]:
> >If we can pull that off and remove all rtmutex trylocks from hardirq
> >context, I would much rather do that.
> >This hocus pocus coding is just going to lead us down the path of the
> >black arts. I already have a black cat, so I'm good to go.
> Okay. So what is the fix for v3.14 and other trees where the rtmutex
> reworked has been integrated? Revert the optimization like I did in
I'm going to start looking at what's in 3.18 and start porting changes
to 3.14 and earlier. I've only been updating the stable kernels to pull
in the mainline stable updates. I haven't reverted anything (unless
mainline stable caused things to be obsolete), nor have I added any
BTW, I'm going to start with 3.18-rt1 and see what's been added to the
other -rt updates. If there's something I need that was added to
3.18-rt1 can you let me know. That is, if it wasn't marked with a
stable-rt tag. My scripts will find those.
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