Re: Mac Mini G4 hang on boot with git master

On 17/03/2019 16:25, christophe leroy wrote:

quoted

This was a weird one: bisecting directly from git master gave a nonsense result,
however by manually rebasing Michael's PR onto my last known good commit from master
I was able to finally pin it down to this commit:


7a0d6955f3f7a4250da63d528bfff7a9c91b5725 is the first bad commit
commit 7a0d6955f3f7a4250da63d528bfff7a9c91b5725
Author: Christophe Leroy [off-list ref]
Date:   Thu Feb 21 10:37:55 2019 +0000

     powerpc/6xx: Store PGDIR physical address in a SPRG

     Use SPRN_SPRG2 to store the current thread PGDIR and
     avoid reading thread_struct.pgdir at every TLB miss.

     Signed-off-by: Christophe Leroy [off-list ref]
     Signed-off-by: Michael Ellerman [off-list ref]

Hi,

The fix is there:

https://patchwork.ozlabs.org/patch/1053385/

Christophe

Hi Christophe,

Thank you! I've tried the patch here and have confirmed that it fixes the problem
with the hang on boot.


ATB,

Mark.