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

From: Fernando Lopez-Lezcano
Date: Tue Mar 08 2011 - 18:41:03 EST


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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