linux-kernel - Re: [Intel-gfx] BUG: sleeping function called from invalid context on 3.10.10-rt7

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Date:	Fri, 11 Oct 2013 15:30:22 +0200
From:	Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:	Steven Rostedt <rostedt@...dmis.org>
CC:	Mario Kleiner <mario.kleiner.de@...il.com>,
	Mario Kleiner <mario.kleiner@...bingen.mpg.de>,
	Peter Hurley <peter@...leysoftware.com>,
	Clark Williams <williams@...hat.com>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	LKML <linux-kernel@...r.kernel.org>,
	"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
	Dave Airlie <airlied@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"Luis Claudio R. Goncalves" <lclaudio@...g.org>,
	intel-gfx <intel-gfx@...ts.freedesktop.org>,
	linux-rt-users <linux-rt-users@...r.kernel.org>,
	Ville Syrjälä <ville.syrjala@...ux.intel.com>
Subject: Re: [Intel-gfx] BUG: sleeping function called from invalid context
 on 3.10.10-rt7

On 10/11/2013 02:37 PM, Steven Rostedt wrote:
> On Fri, 11 Oct 2013 12:18:00 +0200
> Sebastian Andrzej Siewior <bigeasy@...utronix.de> wrote:
> 
>> * Mario Kleiner | 2013-09-26 18:16:47 [+0200]:
>>
>>> Good! I will do that. Thanks for clarifying the irq and constraints
>>> on raw locks in the other thread.
>>
>> Are there any suggestions for "now"?  preempt_disable_nort() like Luis
>> suggesed?
>>
> 
> The preempt_disable_nort() is rather pointless, because the
> preempt_disable() was added specifically for -rt. When PREEMPT_RT is
> not enabled, preemption is disabled there already by the previous calls
> to spin_lock().

Either way. Then I remove the preempt_enable/disable call. Any
objections?

> -- Steve
> 
Sebastian
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