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SubjectRe: PREEMPT_RT_FULL on x86-32 machine
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On 24.06.19 12:53, Pavel Machek wrote:
> Hi!
>
>>> Is full preemption supposed to work on x86-32 machines?
>>>
>>> Because it does not work for me. It crashes early in boot, no messages
>>> make it to console. Similar configuration for x86-64 boots ok.
>>>
>>
>> Maybe you can also tell which version(s) you tried, and in which
>> configuration(s), and how the crash looked like.
>
> I wanted to know if the configuration is supposed to work at all
> before starting heavy debugging. From your reply I assume that it
> should work.

We still have at least one 4.4-based 32-bit-only target on RT. But there is
likely more, even though I'm promoting to use at least a 64-bit kernel on 64-bit
capable hw for many years, irrespective of RT.

Jan

>
> I tried 4.19.13-rt1-cip1 among others. Crash is early in boot, I can
> try some early printing...
>
> Best regards,
> Pavel
>

--
Siemens AG, Corporate Technology, CT RDA IOT SES-DE
Corporate Competence Center Embedded Linux

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