[FSL P50x0] Cyrus+ board doesn't boot with the PowerPC updates 5.16-1

[Christophe Leroy]

Le 08/11/2021 à 15:48, Christian Zigotzky a écrit :
> Hi Christophe,
> 
> The Cyrus+ board with FSL P50x0 SoC [1] doesn't boot with the PowerPC 
> updates 5.16-1 [2].
> 
> I was able to revert the new PowerPC updates 5.16-1 [2]. After a new 
> compiling, the kernel boots without any problems on the Cyrus+ board.
> 
> I bisected today [3]. 52bda69ae8b5102fe08c9db10f4a1514478e07d3 
> (powerpc/fsl_booke: Tell map_mem_in_cams() if init is done) [4] is the 
> first bad commit.

Yes, the bad commit is obviously ... bad.

That commit should have just added an additional argument set to 'true' 
while not changing anything else.

Apparently it went wrong in mm/nohash/tlb.c

I will send a fixup early next week as I'm AFK at the moment.


Christophe