linux-kernel - Re: [ANNOUNCE] 3.12.8-rt11

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Date:	Mon, 27 Jan 2014 23:01:47 +0100
From:	Carsten Emde <C.Emde@...dl.org>
To:	pavel@...linux.ru
CC:	Steven Rostedt <rostedt@...dmis.org>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	linux-rt-users <linux-rt-users@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	John Kacur <jkacur@...hat.com>
Subject: Re: [ANNOUNCE] 3.12.8-rt11

On 01/27/2014 07:24 PM, Steven Rostedt wrote:
> On Mon, 27 Jan 2014 13:42:29 +0400
> Pavel Vasilyev <pavel@...linux.ru> wrote:
>
>> 27.01.2014 12:44, Sebastian Andrzej Siewior пишет:
>>> On 01/26/2014 10:25 PM, Pavel Vasilyev wrote:
>>>> 25.01.2014 17:45, Sebastian Andrzej Siewior пишет:
>>>>> Dear RT folks!
>>>>
>>>>
>>>> Gentlemen, let's have a month of stress testing! Divide tasks
>>>> testing subsystem: USB, NET, MM, ACPI, AUDIO, VIDEO By CPUs:
>>>> ARM/PPC/X86/X86_64...
>>>>
>>>> Purely on observations noted that in September 2013, the quality
>>>> and stability of the code has deteriorated dramatically.
>>>
>>> By September 2k13, do you mean a specific v3.10-RT release?
>>>
>>
>> Any after 3.2.x-rt
>>
>> Maybe I'm doing something wrong, but:
>>
>> 1) All kernels (3.2, 3.8, 3.12, 3.13,...) are working normally without patches;
>>
>> 2) 3.2 works fine in CONFIG_PREEMPT_RT_BASE or CONFIG_PREEMPT_RT_FULL modes;
>>
>> 3) 3.10 not works at all, even without -RT patches;
>
> Please report the problems here to LKML (linux-kernel@...r.kernel.org)
> to the appropriate maintainers. As well as the stable@...r.kernel.org
> mailing list.
>
>>
>> 4) 3.12 work only as CONFIG_PREEMPT_RT_BASE or CONFIG_PREEMPT_RT_FULL in
>> uniprocessor mode (maxcpus=0, nosmp).  Newer patches (Oct.-Dec.) did not work,
>> even in RT_BASE mode.
>
> Does 3.12 work without the -rt patches?
>
>>
>> Varia hardware: One Opteron 285, 2-cpus (4 cores). Six Intel Atoms devices
>> kernels compiled as x86_32.
>
> I have an intel atom dev board hanging around somewhere. I'll see if I
> can test this. Can you send me your config privately.
I can offer help as well. And I am most curious to learn what prevents 
your systems from booting. Please send me your config as well - I'll run 
(or at least try to run) it on a couple of spare farm systems.

	-Carsten.
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