Le 17/03/2019 à 15:15, Mark Cave-Ayland a écrit :
On 15/03/2019 13:37, Mark Cave-Ayland wrote:
Hi all,
I've just done a git pull and rebuilt master on my Mac Mini G4 in order to test
Michael's merge of my KVM PR fix, and unfortunately my kernel now hangs on boot
:(
My last working git checkout was somewhere around the 5.0-rc stage, so I
suspect it's
something that's been merged for 5.1.
The hang occurs just after the boot console is disabled which makes me wonder if
something is going wrong during PCI bus enumeration. Does anyone have an idea
as to
what may be causing this? I can obviously bisect it down, but on slow hardware
it can
take some time...
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 <christophe.le...@c-s.fr>
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 <christophe.le...@c-s.fr>
Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
Hi,
The fix is there:
https://patchwork.ozlabs.org/patch/1053385/
Christophe
---
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