Re: [linux-next, bisected, 1945bc45] build brakes for PowerPC BE configuration on LPAR

On Thu, 2017-05-04 at 10:41:12 UTC, Nicholas Piggin wrote:

On Thu, 04 May 2017 14:54:19 +0530
Abdul Haleem [off-list ref] wrote:

quoted

Hi,

linux-next build fails on BE config with next-20170424 onwards

the patch https://lkml.org/lkml/2017/4/20/994  fixes a similar issue
with kvm guest build failure.

arch/powerpc/kernel/exceptions-64s.S: Assembler messages:
arch/powerpc/kernel/exceptions-64s.S:395: Error: operand out of range
(0xffffffffffff8280 is not between 0x0000000000000000 and
0x000000000000ffff)
make[1]: *** [arch/powerpc/kernel/head_64.o] Error 1

Bisection resulted with the below bad commit.

commit 1945bc4549e5cb1f9aa873ec29191aa54dc851d
Author: Nicholas Piggin [off-list ref]
Date:   Wed Apr 19 23:05:47 2017 +1000

    powerpc/64s: Fix POWER9 machine check handler from stop state

    Reviewed-by: Gautham R. Shenoy [off-list ref]
    Reviewed-by: Mahesh J Salgaonkar [off-list ref]
    Signed-off-by: Nicholas Piggin [off-list ref]
    Signed-off-by: Michael Ellerman [off-list ref]

 arch/powerpc/include/asm/reg.h       |  1 +
 arch/powerpc/kernel/exceptions-64s.S | 79 ++++++++++++++++++++++++++++++++++++++++++++-----------------------------------
 arch/powerpc/kernel/idle_book3s.S    | 25 +++++++++++++++++++++++++
 3 files changed, 70 insertions(+), 35 deletions(-)

the BE configuration file is attached.

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/6102c005a71b4a7a6433d43b887662

cheers