linux-kernel - Re: [PATCH 3.14.25-rt22 1/2] rtmutex Real-Time Linux: Fixing kernel BUG at kernel/locking/rtmutex.c:997!

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Message-ID: <20150306121921.GA10155@linutronix.de>
Date:	Fri, 6 Mar 2015 13:19:21 +0100
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Thavatchai Makphaibulchoke <thavatchai.makpahibulchoke@...com>,
	Thavatchai Makphaibulchoke <tmac@...com>,
	linux-kernel@...r.kernel.org, mingo@...hat.com, tglx@...utronix.de,
	linux-rt-users@...r.kernel.org
Subject: Re: [PATCH 3.14.25-rt22 1/2] rtmutex Real-Time Linux: Fixing kernel
 BUG at kernel/locking/rtmutex.c:997!

* 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
v3.18?

Sebastian
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