linux-kernel - [next-20180709][bisected 9cf57731][ppc] build fail with ld: BFD version 2.26.1-1.fc25 assertion fail elf64-ppc.c:14734

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Date:   Mon, 09 Jul 2018 15:21:23 +0530
From:   Abdul Haleem <abdhalee@...ux.vnet.ibm.com>
To:     linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>
Cc:     linux-next <linux-next@...r.kernel.org>,
        stephen Rothwell <sfr@...b.auug.org.au>,
        mpe <mpe@...erman.id.au>, sachinp <sachinp@...ux.vnet.ibm.com>,
        Peter Zijlstra <peterz@...radead.org>,
        sachinp <sachinp@...ux.vnet.ibm.com>,
        Ingo Molnar <mingo@...nel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: [next-20180709][bisected 9cf57731][ppc] build fail with ld: BFD
 version 2.26.1-1.fc25 assertion fail elf64-ppc.c:14734

Greeting's

Today's next fails to build on powerpc with below error

kernel/cpu.o:(.data.rel+0x18e0): undefined reference to
`lockup_detector_online_cpu'
ld: BFD version 2.26.1-1.fc25 assertion fail elf64-ppc.c:14734
kernel/cpu.o:(.data.rel+0x18e8): undefined reference to
`lockup_detector_offline_cpu'
ld: BFD version 2.26.1-1.fc25 assertion fail elf64-ppc.c:14734
Makefile:1005: recipe for target 'vmlinux' failed
make: *** [vmlinux] Error 1

gcc version: 6.4.1
kernel verion: 4.18.0-rc3-next-20180709
Machine: Power8 PowerVM LPAR
config: attached
binutils: binutils-2.26.1-1

Related commit looks to be:

commit 9cf57731b63e37ed995b46690adc604891a9a28f
Author: Peter Zijlstra <peterz@...radead.org>
Date:   Thu Jun 7 10:52:03 2018 +0200

    watchdog/softlockup: Replace "watchdog/%u" threads with cpu_stop_work
    
    Oleg suggested to replace the "watchdog/%u" threads with
    cpu_stop_work. That removes one thread per CPU while at the same
time
    fixes softlockup vs SCHED_DEADLINE.
    
-- 
Regard's

Abdul Haleem
IBM Linux Technology Centre



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