Re: [Libreboot] X60 freezes with kernel > 4.0.7

[Francis Rowe]

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On 16/07/15 11:08, Robert Alessi wrote:
> On Wed, Jul 15, 2015 at 04:20:56PM -0500, Will Hill wrote:
>> Is your fan in good condition and your heat exchanger dust free?
>> The slim series, denoted by the s, is known for overheating.
> 
> Thank you very much for the hint.  You are perfectlty right.  So I 
> carefully cleaned the fan and the heat exchanger this morning.
> Then I booted 4.1.2, and worked on it for about an hour.  The X60s
> did not freeze, and to my knowledge xsensors gave me acceptable
> values, such as 47.0°C coretemp and 2769 RPM for fan1.
> 
> However --and this is the important point-- I tried to reboot
> twice: - on the first attempt, I got snapshot1.png (attached); - on
> the second attempt, I got snapshot2.png (also attached), namely a 
> kernel panic.  This is much worse, as it makes kernels starting
> from 4.1.1 unusable at least for libreboot laptops such as mine.
> 
> Then I reverted to linux-libre 4.0.7, and everything works fine
> again.
> 
> Provisional conclusion: I strongly suspect that something is wrong
> in kernels above 4.0.7.  Is it related to the bluetooth subsystem?
> I can't say.  But I am convinced there is something.
> 

Looks like it's related to the graphics (i915 driver). Can you compile
a full bug report? Also, boot with drm.debug=0x06 enabled on the
"linux" line in GRUB. Then try to reproduce the error, and post the
logs. (especially kernel logs at boot, and the crash logs)

https://bugzilla.kernel.org/ is where you can submit bug reports for
the linux kernel.

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