Real-time linux kernel
#21
Good afternoon. To my great regret to the current Linux kernel does not support Pine64 FULL_PREEPT_RT mode ARM64 architecture. But this does not mean that the hard real-time kernel is not. Just need to wait a bit when the new standard linux kernel is developed. I express my gratitude to all those cat I participated in this attempt
#22
(04-05-2016, 10:57 PM)Artyom Wrote: Good afternoon. To my great regret to the current Linux kernel does not support Pine64 FULL_PREEPT_RT mode ARM64 architecture. But this does not mean that the hard real-time kernel is not. Just need to wait a bit when the new standard linux kernel is developed. I express my gratitude to all those cat I participated in this attempt

Thanks on your trying. The 64 bit ARM still very news and takes a while to catch up. Once FULL_PREEPT support on ARM64, looking forward on you to continue the Real Time kernel porting.
#23
(04-06-2016, 04:52 PM)tllim Wrote:
(04-05-2016, 10:57 PM)Artyom Wrote: Good afternoon. To my great regret to the current Linux kernel does not support Pine64 FULL_PREEPT_RT mode ARM64 architecture. But this does not mean that the hard real-time kernel is not. Just need to wait a bit when the new standard linux kernel is developed. I express my gratitude to all those cat I participated in this attempt

Thanks on your trying. The 64 bit ARM still very news and takes a while to catch up. Once FULL_PREEPT support on ARM64, looking forward on you to continue the Real Time kernel porting.

Tell me, where in the mainline linux kernel appear Pine64 support? In which version?
#24
(04-07-2016, 12:03 AM)Artyom Wrote:
(04-06-2016, 04:52 PM)tllim Wrote:
(04-05-2016, 10:57 PM)Artyom Wrote: Good afternoon. To my great regret to the current Linux kernel does not support Pine64 FULL_PREEPT_RT mode ARM64 architecture. But this does not mean that the hard real-time kernel is not. Just need to wait a bit when the new standard linux kernel is developed. I express my gratitude to all those cat I participated in this attempt

Thanks on your trying. The 64 bit ARM still very news and takes a while to catch up. Once FULL_PREEPT support on ARM64, looking forward on you to continue the Real Time kernel porting.

Tell me, where in the mainline linux kernel appear Pine64 support? In which version?
Here is the link: http://lists.infradead.org/pipermail/lin...10338.html.
#25
(04-07-2016, 11:17 AM)tllim Wrote:
(04-07-2016, 12:03 AM)Artyom Wrote:
(04-06-2016, 04:52 PM)tllim Wrote:
(04-05-2016, 10:57 PM)Artyom Wrote: Good afternoon. To my great regret to the current Linux kernel does not support Pine64 FULL_PREEPT_RT mode ARM64 architecture. But this does not mean that the hard real-time kernel is not. Just need to wait a bit when the new standard linux kernel is developed. I express my gratitude to all those cat I participated in this attempt

Thanks on your trying. The 64 bit ARM still very news and takes a while to catch up. Once FULL_PREEPT support on ARM64, looking forward on you to continue the Real Time kernel porting.

Tell me, where in the mainline linux kernel appear Pine64 support? In which version?
Here is the link: http://lists.infradead.org/pipermail/lin...10338.html.

Thanks
#26
(03-28-2016, 08:54 AM)Artyom Wrote: @umiddelb
Hi Uli. Seems I find solution, why FULL_PREEPT_RT didn't work.
Read this (https://patches.linaro.org/patch/47646/), and tell me what you think?

@Artyom
I was able to apply the this patch by hand and will now compile / test the new kernel.
This patch will add HAVE_PREEMPT_LAZY, but not FULL_PREEPT_RT itself.
#27
(04-14-2016, 04:03 PM)umiddelb Wrote:
(03-28-2016, 08:54 AM)Artyom Wrote: @umiddelb
Hi Uli. Seems I find solution, why FULL_PREEPT_RT didn't work.
Read this (https://patches.linaro.org/patch/47646/), and tell me what you think?

@Artyom
I was able to apply the this patch by hand and will now compile / test the new kernel.
This patch will add HAVE_PREEMPT_LAZY, but not FULL_PREEPT_RT itself.

@umiddelb 
I, too, have already applied this patch manually. I know that he will not unblock FULL_PREEPT_RT mode. Because this kernel does not support this mode for ARM64 architecture. 

As I wrote earlier for TL Lit we need to wait for the new kernel in which the FULL_PREEPT_RT mode will be maintained for ARM64.
#28
(04-17-2016, 11:23 PM)Artyom Wrote: @umiddelb 
I, too, have already applied this patch manually. I know that he will not unblock FULL_PREEPT_RT mode. Because this kernel does not support this mode for ARM64 architecture. 

As I wrote earlier for TL Lit we need to wait for the new kernel in which the FULL_PREEPT_RT mode will be maintained for ARM64.

@Artyom: The BSP kernel has been updated to 3.10.101, may be this will change the situation a little bit.
#29
OK Uli. I try to find info about how this kernel support FULL_PREEPT_RT mode

Отправлено с моего SM-T325 через Tapatalk
#30
@umiddelb. Hi again. Аs I said earlier we need new kernel. As far as I understand we need kernel version 3.18.11. Additionally, you can read here:
https://patches.linaro.org/patch/47092/
https://patches.linaro.org/patch/47646/


Possibly Related Threads…
Thread Author Replies Views Last Post
  NEMS Linux 1.5 Released for A64/A64+, A64-LTS/SOPine, Rock64, RockPro64 (NAGIOS) Baldnerd 4 6,471 03-28-2020, 06:20 PM
Last Post: ty1911
  PineA64+: Audio in 5.0 Kernel puzzles 6 5,549 11-13-2019, 09:41 AM
Last Post: roel
  Howto run Linux with resolution other than 1080p longsleep 28 52,782 06-13-2019, 01:53 AM
Last Post: Nilda
  NEMS Linux for Pine A64 (+) Luke 1 3,638 05-09-2019, 05:42 PM
Last Post: pineadmin
  Pine Board using linux stuck during boot sequence ktaragorn 4 5,471 03-30-2019, 06:48 AM
Last Post: ktaragorn
  Gentoo Linux test image xalius 23 37,480 01-28-2019, 11:05 PM
Last Post: necrose99
  Rockpro64 NFS root mount (kernel 4.20) - ethernet help? tenspd137 0 2,168 12-06-2018, 01:14 AM
Last Post: tenspd137
  NVMe and new kernel bjbb17 0 1,897 09-25-2018, 03:39 PM
Last Post: bjbb17
  DKMS on kernel 3.10.107-pine64 obrienmd 5 5,854 06-21-2018, 05:45 PM
Last Post: evilbunny
  linux distribution hazerty 3 4,273 04-01-2018, 02:48 PM
Last Post: dkryder

Forum Jump:


Users browsing this thread: 1 Guest(s)