From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Subject: Re: [PATCH] arm64: replace read_lock to rcu lock in call_step_hook
Date: Tue, 9 Feb 2016 10:02:19 +0100
Message-ID: <20160209090219.GA13035@linutronix.de>
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Cc: rostedt@goodmis.org, catalin.marinas@arm.com, will.deacon@arm.com,
	linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org,
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To: Yang Shi <yang.shi@linaro.org>
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* Yang Shi | 2016-02-08 14:49:24 [-0800]:

>BUG: sleeping function called from invalid context at kernel/locking/r=
tmutex.c:917
=E2=80=A6
>This issue is similar with 62c6c61("arm64: replace read_lock to rcu lo=
ck in
>call_break_hook"), but comes to single_step_handler.
>
>This also solves kgdbts boot test silent hang issue on 4.4 -rt kernel.

I am going to apply this for -RT.

Sebastian