Tutorial: Enable RK3368 True Octa-Core Processor - Part 1 of 2

[l33tlinuxh4x0r]

... also - change your cpu mem alignment in init.rc from the default '4' to 1 or 0. That'll help with the segfaults causing reboots during some benchmarks.

write /proc/cpu/alignment 0

Also I am using the geekbox sources. Android 6.0.1 AOSP you can find it on the geekbox forums or github.

Also what reboot bug are you talking about? Mine seems to run fine for over a day of being on.

[Shomari]

... yeah my boxes are rock solid stable, it's just if you try to reboot or power off it doesn't. It just freezes right there. That's the only minor bug left in my code that I haven't solved.

[l33tlinuxh4x0r]

... yeah my boxes are rock solid stable, it's just if you try to reboot or power off it doesn't. It just freezes right there. That's the only minor bug left in my code that I haven't solved.

Mine will reboot if I tell it to. adb reboot or in terminal emulator reboot.

[Shomari]

That line doesn't even exist in my init.rc! I guess that means it is already off

EDIT: found it in another init file.

Also I am changing cpu mem alignment to 0.

it'll be in init.rc in 5.x, but I see you found it. It'll never be off by default, that's for sure

[Shomari]

Mine will reboot if I tell it to. adb reboot or in terminal emulator reboot.

Upload your resource.img, if you don't mind. Something in my resource is messing with the power regulator

[l33tlinuxh4x0r]

Upload your resource.img, if you don't mind. Something in my resource is messing with the power regulator

I'll upload it in a minute... I think that I broke bluetooth

[Shomari]

I'll upload it in a minute... I think that I broke bluetooth

... judging from what I've seen so far, I'm sure you'll figure it out. I'll help however I can

[l33tlinuxh4x0r]

... judging from what I've seen so far, I'm sure you'll figure it out. I'll help however I can

I have an even bigger problem. It has been bugging me for days. I cannot do a clean flash of my firmware that I built. I have to flash stock firmware first and then flash mine on top of it otherwise not all of the partitions will be created and/or mounted Any ideas on why that might be?

[Shomari]

I have an even bigger problem. It has been bugging me for days. I cannot do a clean flash of my firmware that I built. I have to flash stock firmware first and then flash mine on top of it otherwise not all of the partitions will be created and/or mounted Any ideas on why that might be?

...hmmm. That sounds vaguely familiar. What other steps were different in your build process other than your kernel/resource changes? Something must be up with either your parameter file or you misc.img, most likely

[Shomari]

Couple things; your resource still has 'safe frequency' parameters set in the cpufreq node - you don't want those if you're after peak performance. I've removed them and have yet to find issue.

Also, your cpu-map has two clusters, cluster 0 and cluster 1, but all your cpus were migrated into cluster0 for the cpu hack. Cluster1 is empty, so I'd remove it from the node.

[Shomari]

Interestingly enough - I bet if you take out that empty cluster1 from the node it'll cause the reboot bug to show. Because when I did that months ago, is when the bug came back..

[l33tlinuxh4x0r]

Couple things; your resource still has 'safe frequency' parameters set in the cpufreq node - you don't want those if you're after peak performance. I've removed them and have yet to find issue.

Also, your cpu-map has two clusters, cluster 0 and cluster 1, but all your cpus were migrated into cluster0 for the cpu hack. Cluster1 is empty, so I'd remove it from the node.

yeah I left cluster1 in there empty of course because otherwise it complains.

[l33tlinuxh4x0r]

...hmmm. That sounds vaguely familiar. What other steps were different in your build process other than your kernel/resource changes? Something must be up with either your parameter file or you misc.img, most likely

what is the misc.img used for anyway? How do I edit it?

[Shomari]

As far as Bluetooth, your kernel build targets 8723bs ... that might be the problem?

[prahjister]

what is the misc.img used for anyway? How do I edit it?

Nice thread. Good work. misc.img tells the box what to do on next boot. http://www.mediafire.com/file/a9mvg4sk4hb9y74/misc.zip here are some i have collected. Cant remember what the one i labeled clear does. Maybe that is why when you flash yours it doesnt boot. Try using the wipe all one. Second though maybe better take misc from the stock one and bring into yours. I bet it boots after that.