On 14/9/2020 3:55 pm, Chao Yu wrote:
Hi Chris,
On 2020/9/14 15:38, Chris Ruehl wrote:
I must say sorry for the noise, I checked the Ram and CPU, we have a bad
RAM which can't follow the 992Mhz and causes the problem, once limit the
CPU speed to 800Mhz the problem is gone. Both 4.9 & 5.4
Okay, out of curiosity, the frequency 992Mhz has exceed the frequency limitation
of RAM?
Its a problem with the PCB, not the RAM and the frequency.
We take out the CPU for investigation and found some aging on the
balls and pads. Likely to much humidity.
Please consider this bug as false-positive.
Alright, let us know if you have any issue on f2fs use.
Thanks,
we have new rollout on rk3399 with ddr4 and 8G eMMC 5.4 - 8 bit bus
tests run with 4.9 4.19 and 5.4 plus rt patch, no problems here.
Regards
Chris
.
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