[KERNEL] [4.4.111+] [Android 9] A2N Kernel for the Galaxy S8 / S8 Plus Exynos [R56]

[rtyuakatsuki]

after longtime tune i think is best for regular use like using maps whatsapp ,open some unstable app marketplace yeah more then enough
before UV lag and struggle to use the phone
after UV almost no lag but still there much² more smooth

 

[Ryujin96]

Passed 2 weeks stable, so guess test kernel 09-06-22 is stable as a rock

 

[Ryujin96]

Something oftopic, i can notice ppl on xda are more helpfull than on the windows mdl forum damn, got some issues with some things and they just freaking ignore me on mdl glad this forum isnt like mdl

 

[madhatter57]

Random reboot.

These are getting more frequent, coupled with random shutdown I reported before. Tell me, should I be looking at buying a new phone or is there a chance this might be caused by some software or kernel?

 

[Twiq]

Random reboot.

These are getting more frequent, coupled with random shutdown I reported before. Tell me, should I be looking at buying a new phone or is there a chance this might be caused by some software or kernel?

are you sure you're using 2022-09-06 ? cos that version's uptime passed 2 weeks without issue

edit: read your attached last_kmsg, i might read it wrong but there sre lots of lots of files not found by the system, it might be a sign of corruption.. i suggest doing an fsck (e2fsck) on your partitions, mainly the system one

maybe @ace2nutzer could clarify ?

 

[Ryujin96]

are you sure you're using 2022-09-06 ? cos that version's uptime passed 2 weeks without issue

Same here, 3 weeks stable with an shutdown mean while becus i forget charge the phone lol

 

[Twiq]

Same here, 3 weeks stable with an shutdown mean while becus i forget charge the phone lol

true, it was rock stable until my netflix wouldn't boot coz the DRM stuff can't be detected, i had to restart

@ace2nutzer do you know what service/processes does the DRM depends on? i've exerienced this twice within a week, i know it's not kernel issue but just wild guessing you might know the issue/solution

 

[Ryujin96]

true, it was rock stable until my netflix wouldn't boot coz the DRM stuff can't be detected, i had to restart

@ace2nutzer do you know what service/processes does the DRM depends on? i've exerienced this twice within a week, i know it's not kernel issue but just wild guessing you might know the issue/solution

I know it depends on the safetynet pass and the drm L version, but specific services and processes idk

 

[madhatter57]

Apologies as I didn't realise there was a test version available, I was on latest stable. Trying latest test now

 

[ace2nutzer]

are you sure you're using 2022-09-06 ? cos that version's uptime passed 2 weeks without issue

edit: read your attached last_kmsg, i might read it wrong but there sre lots of lots of files not found by the system, it might be a sign of corruption.. i suggest doing an fsck (e2fsck) on your partitions, mainly the system one

maybe @ace2nutzer could clarify ?

No. Don't ever assume an Android phone has no errors or warnings in dmesg / logcat. Every Android phone has it, but we devs know what errors/warnings are critical and should be fixed and which we can safely ignore. In that case, you can ignore them as they are just some left overs from previous Android version, which are left for reference/compatibility reasons or just because Samsung/Google was too lazy to clean it up, never mind just ignore them.

true, it was rock stable until my netflix wouldn't boot coz the DRM stuff can't be detected, i had to restart

@ace2nutzer do you know what service/processes does the DRM depends on? i've exerienced this twice within a week, i know it's not kernel issue but just wild guessing you might know the issue/solution

DRM is in this kernel always L3, because of the removed DRM lib.
So there shouldn't be any issues at all as long as SafetyNet passes.
Other than that, I've no idea what could cause still issues sometimes, as I don't use DRM stuff. (Always busy with kernel development lol)

 

[madhatter57]

Apologies as I didn't realise there was a test version available, I was on latest stable. Trying latest test now

Unfortunately the problem still persists with latest test kernel. Random reboot/shutdown, usually happens when using phone plugged in and it gets a bit hot (I limit maximum charging temperature to 38 degrees now , charging at 2600mah)

 

[Twiq]

Unfortunately the problem still persists with latest test kernel. Random reboot/shutdown, usually happens when using phone plugged in and it gets a bit hot (I limit maximum charging temperature to 38 degrees now , charging at 2600mah)

i suspect there's something wrong with your filesystem, as i mentioned earlier.. there's a lot of system files not found and also e2fsck failing entries..
checking them out won't do harm.. or if you prefer a cleaner way you could reflash the whole rom with full wipe

but if you choose not to do both, atleast try resetting the kernel configurations to default and start with recommended values and see how it goes

 

[madhatter57]

i suspect there's something wrong with your filesystem, as i mentioned earlier.. there's a lot of system files not found and also e2fsck failing entries..
checking them out won't do harm.. or if you prefer a cleaner way you could reflash the whole rom with full wipe

but if you choose not to do both, atleast try resetting the kernel configurations to default and start with recommended values and see how it goes

Thanks for the suggestions, it is funny because I did a clean install of the ROM recently, but I shall try again.... Do you mean a full wipe excluding data and storage, right?

 

[rtyuakatsuki]

Thanks for the suggestions, it is funny because I did a clean install of the ROM recently, but I shall try again.... Do you mean a full wipe excluding data and storage, right?

i think the rom you flash is corrupted or something else and also its better to use full stock rom and debloat it using luckypatcher

 

[madhatter57]

i think the rom you flash is corrupted or something else and also its better to use full stock rom and debloat it using luckypatcher

Hey thanks for the suggestion, what I flashed was latest devbase ROM which is supposedly full stock. Is there a simple way to install full stock ROM using twrp? Perhaps if you prefer and have availability to send me some information privately that would be much appreciated !!

 

[Twiq]

Thanks for the suggestions, it is funny because I did a clean install of the ROM recently, but I shall try again.... Do you mean a full wipe excluding data and storage, right?

what i meant by full wipe was formatting /system and /data
then flash the rom and kernel.. this is a real pain, i know

 

[rtyuakatsuki]

Hey thanks for the suggestion, what I flashed was latest devbase ROM which is supposedly full stock. Is there a simple way to install full stock ROM using twrp? Perhaps if you prefer and have availability to send me some information privately that would be much appreciated !!

for that i don't know about stock rom flashed in twrp sorry bro

 

[TechNoobForSale]

Istg I have no idea what people are talking about. I had 0 random reboots in weeks except for those I caused by testing undervolt. This thing is like the most stable stuff ever.

 

[Ryujin96]

Istg I have no idea what people are talking about. I had 0 random reboots in weeks except for those I caused by testing undervolt. This thing is like the most stable stuff ever.

Agreed dude

 

[TechNoobForSale]

So after some testing I came to the conclusion that 839 and 764MHz on GPU in my personal use case scenario are unfortunately a hit or miss. Doesn't matter what voltage I assign to it, it will eventually just force reboot at some point or another, in some cases (not all of them, but most). Basically the GPU is capable of handling 764 and 839MHz but Samsung just didn't put in the hardware to handle it for long periods of time (unless somebody has got the luck to have an incredibly high ASV G71). Well, 683MHz is still a 25% overclock.

Admittedly I didn't try to run the benchmarks in battery idle, which may solve the issue. But I never really used that function, so I have no idea how it is used.