Open marty1885 opened 4 years ago
How to reproduce this? Have you done any modprobe before that?
I just ran 'mhz' tool from lmbench and it reports 2GHz; so most probably either scaling governor fixed to 1GHz or mis-report of 'cpupower'
I see this from my cpuinfo and when I ran mhz it reported 999MHz....
@rabeeh Hi, I've been trying to replicate this issue. It seems to happen randomly and I can't find a way to force it. For me it happens about twice in 50 boots using kernel 5.4. Sorry.
I think it is the governor broken somewhere. Not only cpupower
reports 1GHz when it happens. netdata
also reports 1GHz. And compiling code when the bug is active is visibly slower.
Hi,
I find my LX2K board stuck at all cores 1GHz under any load (even with
stress -c 16
) when running kernel 5.4. But can perfectly run to 2.0GHz all cores on 4.19. Andcpupower
seems to suggest the frequency scaling is broken on 5.4.If this a configuration problem on my side or a general problem on kernel 5.4?
Thanks