On Tue, 4 Oct 2022 23:29:52 +1000, Nicholas Piggin wrote:
The value of the stack frame regs marker that gets saved on the
stack in interrupt entry code does not match the regs marker value,
which breaks stack frame marker matching.
This stray instruction looks to have been introduced in a mismerge.
[...]
Applied to powerpc/next.
[1/1] powerpc/64s/interrupt: stack backtrace fix
https://git.kernel.org/powerpc/c/b2e82e495a528eed77c15f3923c2b049a21d7280
cheers