linux-kernel - Re: [ANNOUNCE] RT for v2.6.34.8 now available.

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Message-ID: <4D76BE85.9070406@localhost>
Date:	Tue, 08 Mar 2011 15:40:53 -0800
From:	Fernando Lopez-Lezcano <nando@...ma.Stanford.EDU>
To:	Paul Gortmaker <paul.gortmaker@...driver.com>
CC:	Fernando Lopez-Lezcano <nando@...ma.Stanford.EDU>,
	"linux-rt-users@...r.kernel.org" <linux-rt-users@...r.kernel.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [ANNOUNCE] RT for v2.6.34.8 now available.

On 03/07/2011 04:52 PM, Paul Gortmaker wrote:
> On 11-03-07 03:54 PM, Fernando Lopez-Lezcano wrote:
>> On 03/07/2011 12:52 PM, Paul Gortmaker wrote:
>>> On 11-03-07 03:41 PM, Fernando Lopez-Lezcano wrote:
>
> [...]
>
>>>> ...
>>>>> - EeePC netbook, Fedora 13, Intel Mobile 945GME graphics: X does not start
>>>>> - Lenovo laptop, fedora 14, Intel 9xx graphics (at home): X does not start
>>>>> These last two share Intel graphics and the problem seems to be the
>>>>> same, something to do with dri.
>>>>
>>>> This is what I'm getting (dmesg|grep i915):
>>>>
>>>> i915 0000:00:02.0 PCI INT A ->   GSI 16 (level, low) ->   IRQ 16
>>>> i915 0000:00:02.0 setting latency timer to 64
>>>> i915 0000:00:02.0 PCI INT A disabled
>>>> i915: probe of 0000:00:02.0 failed with error -5
>>>>
>>>> Same kernel w/o rt...:
>>>>
>>>> i915 0000:00:02.0 PCI INT A ->   GSI 16 (level, low) ->   IRQ 16
>>>> i915 0000:00:02.0 setting latency timer to 64
>>>> [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0
>>>>
>>>> So, some problem with irq processing?
>>>> Where should I go look?
>>>
>>> Try v2.6.33-rt -- see if it is a new regression, or was a problem that
>>> already existed and has just been carried forward.
>>
>> 2.6.33.x-rt30 works on all of the above so it seems this is new... (yuck :-)
>> (just in case, this is not pristine 2.6.34.8 + rt git)
>
> I'm pretty sure I know what this is.  If you cherry pick the two
> commits from tip, namely:
>
> 	e89fab2bf44afccaa48ffb8ae33c03f4f3dcd208 and
> 	cd4ac9b7a1c80cfcd9b8e76a1f6855a0329d982f
>
> then I'll bet your i915 gets detected OK.

It does, thank you very much! I tested on the EeePc only but I suspect 
the Lenovo will be happy as well (it is at home right now). I have not 
hit any other problems so far with 2.6.34.8 + rtx (0?)...

-- Fernando
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