PREEMPT_RT_FULL on x86-32 machine
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.
Pavel
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(english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
Quoted 7 lines · Pavel Machek
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.
Jan
Signature · 2 lines
Siemens AG, Corporate Technology, CT RDA IOT SES-DE Corporate Competence Center Embedded Linux
Hi!
Quoted 8 lines
Quoted 5 lines
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.
I tried 4.19.13-rt1-cip1 among others. Crash is early in boot, I can try some early printing...
Best regards,
Pavel
Signature · 2 lines
(english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
Quoted 8 lines · Pavel Machek
Hi!
Quoted 6 lines
Quoted 5 lines
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.
Quoted 6 lines
Quoted 2 lines
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
Quoted 7 lines
I tried 4.19.13-rt1-cip1 among others. Crash is early in boot, I can try some early printing...
Best regards,
Pavel
Signature · 2 lines
Siemens AG, Corporate Technology, CT RDA IOT SES-DE Corporate Competence Center Embedded Linux
Quoted 1 line · Pavel Machek
Hi!
Hi,
Quoted 9 lines
Quoted 8 lines
Quoted 5 lines
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.
Quoted 6 lines
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.
I tried 4.19.13-rt1-cip1 among others. Crash is early in boot, I can try some early printing...
The latest is v4.19.50-rt22 I would suggest that one. There was a bug which was fixed either in 4.19.23-rt14 or in the following version.
If the latest one does not work please let me know and I will have a look.
Quoted 2 lines
Best regards,
Pavel
Sebastian
Hi!
Quoted 13 lines
Quoted 13 lines
Quoted 8 lines
Quoted 5 lines
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.
Quoted 8 lines
Quoted 2 lines
I tried 4.19.13-rt1-cip1 among others. Crash is early in boot, I can try some early printing...
The latest is v4.19.50-rt22 I would suggest that one. There was a bug which was fixed either in 4.19.23-rt14 or in the following version.
If the latest one does not work please let me know and I will have a look.
Ok, let me try again. It seems the kernel based on the latest one works ok. Even suspend/resume works.
Thanks,
Pavel
Signature · 2 lines
(english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html