ebin-dev

But isn't that quite an improvement for your box ? Your latest suggestion (voltage increase of 75mV for the big cores) had a very positive effect ! It seems that also my helios benefits from that (but too early to be sure about it).

I am using 6.6.8 with the modified dtb (cache awareness, emmc with hs400, 75 mV bump for the big cores). It works perfectly fine. For your convenience I attach the dtb. Since Helios64 is used throughout the day by several people - time for tests is very limited. Everybody is invited to test kernels and provide feedback here. rk3399-kobol-helios64.dtb-6.6.8-L2-hs400-opp

can't confirm (my system is now based on Armbian 23.5.4): # cat /var/log/syslog | grep mdadm #

OK - I am currently testing your opp-table-1 values (added the missing ones): opp-table-1 { compatible = "operating-points-v2"; opp-shared; phandle = <0x0d>; opp00 { opp-hz = <0x00 0x18519600>; opp-microvolt = <0xdbba0 0xdbba0 0x1312d0>; clock-latency-ns = <0x9c40>; }; opp01 { opp-hz = <0x00 0x23c34600>; opp-microvolt = <0xdbba0 0xdbba0 0x1312d0>; }; opp02 { opp-hz = <0x00 0x30a32c00>; opp-microvolt = <0xdbba0 0xdbba0 0x1312d0>; }; opp03 { opp-hz = <0x00 0x3c14dc00>; opp-microvolt = <0xe7ef0 0xe7ef0 0x1312d0>; }; opp04 { opp-hz = <0x00 0x47868c00>; opp-microvolt = <0xfa3e8 0xfa3e8 0x1312d0>; }; opp05 { opp-hz = <0x00 0x54667200>; opp-microvolt = <0x10c8e0 0x10c8e0 0x1312d0>; }; opp06 { opp-hz = <0x00 0x5fd82200>; opp-microvolt = <0x11edd8 0x11edd8 0x1312d0>; }; opp07 { opp-hz = <0x00 0x6b49d200>; opp-microvolt = <0x1312d0 0x1312d0 0x1312d0>; }; };

Do I understand you correctly that you suggest to increase all opp-microvolt values in opp-table-1 by 75 millivolt ? This would i.e. change opp-microvolt = <0xc96a8 0xc96a8 0x1312d0>; to opp-microvolt = <0xdbba0 0xdbba0 0x1437c8>; # here are my current values opp-table-1 { compatible = "operating-points-v2"; opp-shared; phandle = <0x0d>; opp00 { opp-hz = <0x00 0x18519600>; opp-microvolt = <0xc96a8 0xc96a8 0x1312d0>; clock-latency-ns = <0x9c40>; }; opp01 { opp-hz = <0x00 0x23c34600>; opp-microvolt = <0xc96a8 0xc96a8 0x1312d0>; }; opp02 { opp-hz = <0x00 0x30a32c00>; opp-microvolt = <0xc96a8 0xc96a8 0x1312d0>; }; opp03 { opp-hz = <0x00 0x3c14dc00>; opp-microvolt = <0xd59f8 0xd59f8 0x1312d0>; }; opp04 { opp-hz = <0x00 0x47868c00>; opp-microvolt = <0xe7ef0 0xe7ef0 0x1312d0>; }; opp05 { opp-hz = <0x00 0x54667200>; opp-microvolt = <0xfa3e8 0xfa3e8 0x1312d0>; }; opp06 { opp-hz = <0x00 0x5fd82200>; opp-microvolt = <0x10c8e0 0x10c8e0 0x1312d0>; }; opp07 { opp-hz = <0x00 0x6b49d200>; opp-microvolt = <0x124f80 0x124f80 0x1312d0>; }; };

Linux 6.6.27 is not stable on my system - with or without the modifications (hs400 speed and cache awareness). I will switch back to 6.6.8 now. # kernel oops 2024-04-17T20:45:02.182350+02:00 helios64 kernel: [20582.266022] Unable to handle kernel paging request at virtual address ffff800481075118 2024-04-17T20:45:02.182405+02:00 helios64 kernel: [20582.266042] Mem abort info: 2024-04-17T20:45:02.182409+02:00 helios64 kernel: [20582.266047] ESR = 0x0000000086000005 2024-04-17T20:45:02.182413+02:00 helios64 kernel: [20582.266053] EC = 0x21: IABT (current EL), IL = 32 bits 2024-04-17T20:45:02.182416+02:00 helios64 kernel: [20582.266062] SET = 0, FnV = 0 2024-04-17T20:45:02.182421+02:00 helios64 kernel: [20582.266068] EA = 0, S1PTW = 0 2024-04-17T20:45:02.182424+02:00 helios64 kernel: [20582.266073] FSC = 0x05: level 1 translation fault 2024-04-17T20:45:02.182428+02:00 helios64 kernel: [20582.266080] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000037b7000 2024-04-17T20:45:02.182432+02:00 helios64 kernel: [20582.266088] [ffff800481075118] pgd=10000000f7fff003, p4d=10000000f7fff003, pud=0000000000000000 2024-04-17T20:45:02.182436+02:00 helios64 kernel: [20582.266111] Internal error: Oops: 0000000086000005 [#1] PREEMPT SMP 2024-04-17T20:45:02.182440+02:00 helios64 kernel: [20582.266686] Modules linked in: xt_comment xt_tcpudp nft_compat nf_tables nfnetlink eq3_char_loop(O) rpi_rf_mod_led(O) dummy_rx8130(O) hb_rf_eth(O) generic_raw_uart(O) sunrpc lz4hc lz4 zram binfmt_misc cp210x us> 2024-04-17T20:45:02.182445+02:00 helios64 kernel: [20582.273976] CPU: 5 PID: 13764 Comm: kworker/5:2 Tainted: G C O 6.6.27-current-rockchip64 #2 2024-04-17T20:45:02.182450+02:00 helios64 kernel: [20582.274829] Hardware name: Helios64 (DT) 2024-04-17T20:45:02.182453+02:00 helios64 kernel: [20582.275191] Workqueue: events dbs_work_handler 2024-04-17T20:45:02.182457+02:00 helios64 kernel: [20582.275626] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) 2024-04-17T20:45:02.182461+02:00 helios64 kernel: [20582.276247] pc : 0xffff800481075118 2024-04-17T20:45:02.182464+02:00 helios64 kernel: [20582.276567] lr : 0xffff800481075118 2024-04-17T20:45:02.182467+02:00 helios64 kernel: [20582.276882] sp : ffff800088b23530 2024-04-17T20:45:02.182472+02:00 helios64 kernel: [20582.277182] x29: ffff800088b23530 x28: ffff800081c4d090 x27: ffff0000040a8080 2024-04-17T20:45:02.182499+02:00 helios64 kernel: [20582.277830] x26: 000000003b9aca00 x25: ffff0000040a84f8 x24: 0000000000000000 2024-04-17T20:45:02.182503+02:00 helios64 kernel: [20582.278474] x23: ffff800081a47000 x22: ffff8000816f8008 x21: ffff800088b23578 2024-04-17T20:45:02.182507+02:00 helios64 kernel: [20582.279118] x20: 00000000000000fa x19: 00000001004d6073 x18: 0000000000000000 2024-04-17T20:45:02.182510+02:00 helios64 kernel: [20582.279762] x17: 000000040044ffff x16: 00100074b5503510 x15: 0000000000000000 2024-04-17T20:45:02.182513+02:00 helios64 kernel: [20582.280404] x14: 00000000000000c9 x13: 0000000000000002 x12: 0000000000000000 2024-04-17T20:45:02.182516+02:00 helios64 kernel: [20582.281048] x11: 0000000000000400 x10: 0000000000000a90 x9 : ffff800088b23450 2024-04-17T20:45:02.182520+02:00 helios64 kernel: [20582.281691] x8 : ffff000006da46f0 x7 : 0000000000000000 x6 : 0000000000000070 2024-04-17T20:45:02.182523+02:00 helios64 kernel: [20582.282333] x5 : 00000000410fd080 x4 : 0000000000f0000f x3 : 0000000000000002 2024-04-17T20:45:02.182527+02:00 helios64 kernel: [20582.282976] x2 : 0000000000000000 x1 : ffff000006da3c00 x0 : 00000000124a8be7 2024-04-17T20:45:02.182530+02:00 helios64 kernel: [20582.283621] Call trace: 2024-04-17T20:45:02.182533+02:00 helios64 kernel: [20582.283846] 0xffff800481075118 2024-04-17T20:45:02.182536+02:00 helios64 kernel: [20582.284136] rk3x_i2c_xfer_common.isra.0+0x32c/0x438 2024-04-17T20:45:02.182539+02:00 helios64 kernel: [20582.284589] rk3x_i2c_xfer+0x18/0x24 2024-04-17T20:45:02.182543+02:00 helios64 kernel: [20582.284917] __i2c_transfer+0x1ec/0x80c 2024-04-17T20:45:02.182546+02:00 helios64 kernel: [20582.285269] i2c_transfer+0x60/0x128 2024-04-17T20:45:02.182549+02:00 helios64 kernel: [20582.285598] i2c_transfer_buffer_flags+0x5c/0x90 2024-04-17T20:45:02.182552+02:00 helios64 kernel: [20582.286017] regmap_i2c_write+0x20/0x58 2024-04-17T20:45:02.182556+02:00 helios64 kernel: [20582.286370] _regmap_raw_write_impl+0x7ac/0x8f8 2024-04-17T20:45:02.182559+02:00 helios64 kernel: [20582.286778] _regmap_bus_raw_write+0x60/0x7c 2024-04-17T20:45:02.182563+02:00 helios64 kernel: [20582.287163] _regmap_write+0x60/0x188 2024-04-17T20:45:02.182567+02:00 helios64 kernel: [20582.287496] _regmap_update_bits+0x114/0x134 2024-04-17T20:45:02.182570+02:00 helios64 kernel: [20582.287881] regmap_update_bits_base+0x64/0x98 2024-04-17T20:45:02.182573+02:00 helios64 kernel: [20582.288282] regulator_set_voltage_sel_regmap+0x50/0x9c 2024-04-17T20:45:02.182577+02:00 helios64 kernel: [20582.288759] _regulator_call_set_voltage_sel+0x74/0xc8 2024-04-17T20:45:02.182580+02:00 helios64 kernel: [20582.289224] _regulator_do_set_voltage+0x47c/0x58c 2024-04-17T20:45:02.182584+02:00 helios64 kernel: [20582.289660] regulator_set_voltage_rdev+0x64/0x258 2024-04-17T20:45:02.182586+02:00 helios64 kernel: [20582.290096] regulator_do_balance_voltage+0x1f4/0x428 2024-04-17T20:45:02.182590+02:00 helios64 kernel: [20582.290553] regulator_balance_voltage+0x50/0x9c 2024-04-17T20:45:02.182593+02:00 helios64 kernel: [20582.290974] regulator_set_voltage_unlocked+0xa8/0x12c 2024-04-17T20:45:02.182597+02:00 helios64 kernel: [20582.291438] regulator_set_voltage+0x50/0x98 2024-04-17T20:45:02.182600+02:00 helios64 kernel: [20582.291828] _opp_config_regulator_single+0x50/0x19c 2024-04-17T20:45:02.182603+02:00 helios64 kernel: [20582.292281] _set_opp+0xd8/0x4bc 2024-04-17T20:45:02.182607+02:00 helios64 kernel: [20582.292577] dev_pm_opp_set_rate+0x18c/0x280 2024-04-17T20:45:02.182610+02:00 helios64 kernel: [20582.292963] set_target+0x30/0x3c [cpufreq_dt] 2024-04-17T20:45:02.182613+02:00 helios64 kernel: [20582.293377] __cpufreq_driver_target+0x1d0/0x344 2024-04-17T20:45:02.182616+02:00 helios64 kernel: [20582.293797] od_dbs_update+0xbc/0x1ac 2024-04-17T20:45:02.182620+02:00 helios64 kernel: [20582.294133] dbs_work_handler+0x40/0x7c 2024-04-17T20:45:02.182623+02:00 helios64 kernel: [20582.294486] process_one_work+0x160/0x3a8 2024-04-17T20:45:02.182626+02:00 helios64 kernel: [20582.294854] worker_thread+0x32c/0x438 2024-04-17T20:45:02.182630+02:00 helios64 kernel: [20582.295197] kthread+0x114/0x118 2024-04-17T20:45:02.182633+02:00 helios64 kernel: [20582.295494] ret_from_fork+0x10/0x20 2024-04-17T20:45:02.182636+02:00 helios64 kernel: [20582.295835] Code: ???????? ???????? ???????? ???????? (????????) 2024-04-17T20:45:02.182640+02:00 helios64 kernel: [20582.296383] ---[ end trace 0000000000000000 ]---

A first test with linux 6.6.27 (downloaded from beta.armbian.com) was successful on my system too - even with the modifications (hs400 speed and cache awareness). (here is a link to the linux-6.6.27 debs downloaded today; I also attached modified dtbs for some kernel versions) dtbs.zip

I am using the standard settings - no need to reduce the frequency of the fast cores. Anything related to OMV should go to another thread ! # cat /etc/default/cpufrequtils ENABLE=true MIN_SPEED=408000 MAX_SPEED=1800000 GOVERNOR=ondemand

This is all explained in detail in the message linked next to the recommended u-boot version.

Just flash the bootloader again to emmc. Double check that the UUIDs in /etc/fstab and in /boot/armbianEnv are correct. And double check that all your log files are present on emmc (otherwise rsync them manually): some apps do not recreate them once installed. If you helios64 is still not running smoothly, reinstall 6.6.8 on emmc, or alternatively 6.1.71, or 5.15.93.

I replaced the link to linux-u-boot-edge and to the rtl_nic firmware.

Did you check that the recommended bootloader is flashed to emmc ? And that the rtl_nic firmware is updated ? Did you start from the Armbian Image with kernel 6.1.36 ?

The old files can of course be deleted in / , /boot , /usr/src , and in /lib/modules .

Depending on your use case try kernel 6.6.8, 6.1.71, and 5.15.93 (download links are provided here). Armbian built kernels 6.6.x (x>8) are all unstable.

The uuids containing 'a6be' refer to the 'to device', the ones containing '91ac' refer to the 'from device'.