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

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Date:   Thu, 04 May 2017 14:54:19 +0530
From:   Abdul Haleem <abdhalee@...ux.vnet.ibm.com>
To:     linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>, mpe <mpe@...erman.id.au>,
        ego <ego@...ux.vnet.ibm.com>,
        sachinp <sachinp@...ux.vnet.ibm.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        mahesh@...ux.vnet.ibm.com, npiggin@...il.com
Subject: [linux-next][bisected 1945bc45] build brakes for PowerPC BE
 configuration on LPAR

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 <npiggin@...il.com>
Date:   Wed Apr 19 23:05:47 2017 +1000

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

    Reviewed-by: Gautham R. Shenoy <ego@...ux.vnet.ibm.com>
    Reviewed-by: Mahesh J Salgaonkar <mahesh@...ux.vnet.ibm.com>
    Signed-off-by: Nicholas Piggin <npiggin@...il.com>
    Signed-off-by: Michael Ellerman <mpe@...erman.id.au>

 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.

-- 
Regard's

Abdul Haleem
IBM Linux Technology Centre



View attachment "p6-config-BE" of type "text/plain" (134442 bytes)