Re: [PATCH 0/2] Allow nesting of lazy MMU mode

From: Erhard Furtner
Date: Fri Oct 13 2023 - 09:42:37 EST


On Thu, 12 Oct 2023 20:54:13 +0100
"Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx> wrote:

> Dave Woodhouse reported that we now nest calls to
> arch_enter_lazy_mmu_mode(). That was inadvertent, but in principle we
> should allow it. On further investigation, Juergen already fixed it
> for Xen, but didn't tell anyone. Fix it for Sparc & PowerPC too.
> This may or may not help fix the problem that Erhard reported.
>
> Matthew Wilcox (Oracle) (2):
> powerpc: Allow nesting of lazy MMU mode
> sparc: Allow nesting of lazy MMU mode
>
> arch/powerpc/include/asm/book3s/64/tlbflush-hash.h | 5 ++---
> arch/sparc/mm/tlb.c | 5 ++---
> 2 files changed, 4 insertions(+), 6 deletions(-)
>
> --
> 2.40.1

Applied the patch on top of v6.6-rc5 but unfortunately it did not fix my reported issue.

Regards,
Erhard