[LEDE-DEV] mt7621 cpu stalls - need help testing

[p.wassi at gmx.at]

Hi John,

great, you've found the reason for the problems on MT7621.
I'd gladly help with testing (here, also with the cake scheduler enabled where
I had these stalls rather frequently). However, two questions:
-) Is [1] the patch that fixes the problem? What has been changed there?
-) I guess, things apply for 4.9 as well?

Thanks,
P. Wassi

[1]:
https://git.lede-project.org/?p=lede/blogic/staging.git;a=commit;h=fbaf5cfccb305730d981757fb573635913c6242a


> Hi,
> 
> there have been various bug reports related to mt7621 where one of the 
> cores seems to have dead locked. while digging thorugh the SDK i found 
> that the recalibrate the delay loop after powering up all 4 cores. 
> checking /proc/cpuinfo we see that the 4 cores run at different bogo 
> mips. i pushed a patch to fix this [1] and hope it will also fix/explain 
> why we have been seeing cpu stalls.
> 
> anyone fancy helping me test this ? i have not seen any cpu stalls yet 
> but would love to see more test coverage.
> 
>      John
> 
> [1] 
> https://git.lede-project.org/?p=lede/blogic/staging.git;a=shortlog;h=refs/heads/lede-17.01
> 
> 
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