[Re: WAS: linux-rt fails to boot on > 3.12.5.-rt7 ... NOW IS: linux-rt-3.14 boots by reverting patches + nvidia uses __rt_mutex_init [which in 3.14 has been changed to EXPORT_SYMBOL_GPL]] On 14/05/2014 (Wed 03:38) Kimmo Taskinen wrote:

On 25.04.2014 20:39, Paul Gortmaker wrote:

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On 14-04-25 01:23 PM, jordan wrote:

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On Fri, Apr 25, 2014 at 10:43 AM, Paul Gortmaker
[off-list ref] wrote:

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On 14-04-19 10:42 AM, jordan wrote:

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Hey Paul,

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I've got some AMD kit that has just been freed up from winter
heating duty - sometime later this week I should be able to try to
reproduce what you have seen, and knowing it works w/o the above
softirq patch monkeying around should be a good lead on this.

That would be awesome! IIRC, Sebastian said that he didn't have said
h/w CPU kicking around to test with, at some point in my original
thread on this subject... and i just don't have the skill set required

So I stuck the -rt patches onto 3.14.1 last night;  made a defconfig
and then enabled RT_FULL in the resulting .config and that booted
right up on a 1090T six core phenom, which kind of surprised me.

that surprises me too - maybe 3.14.1 fixed something? ...anyway, I am
only home for a short while [lunch] but i will try building 3.14.1-rt
when i get home and see what happens / report back.

I had to drop one ipv6 patch that was now in stable, but otherwise
it was straight forward to make a 3.14.1-rt

P.
--

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I should be able to dig up an athlon quad and see what it does...

worth a look, i suppose.

thanks Paul for the update

Jordan Johnston

I had not been able to boot my Phenom II X4 910e PC with any of the
latest RT kernels (3.12 after 3.12.5-rt7 or 3.14 or not even the
latest 3.10 versions) until I today disabled AMD C1E from BIOS. An
other way to get it to boot was "acpi=off" as a parameter to kernel
but I need "button". I tried many others "processor.max_cstate=0",
"processor.nocst", etc...

Without RT patch the "AMD C1E" is not a problem.

OK, so I never got back to finding a system that could reproduce this,
but it sounds like it is still worthwhile; thanks for the reminder and
I'll go see if I can reproduce this on a quad since the six core was OK.

P.
--

Cheers
Kimmo

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