linux-kernel - Re: [PATCH -tip V3] [BUGFIX] kprobes/x86: Do not jump-optimize kprobes on irq entry code

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Date:   Thu, 27 Jul 2017 23:29:40 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Masami Hiramatsu <mhiramat@...nel.org>
Cc:     kbuild-all@...org, Ingo Molnar <mingo@...nel.org>,
        Francis Deslauriers <francis.deslauriers@...icios.com>,
        mathieu.desnoyers@...icios.com,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H . Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Ananth N Mavinakayanahalli <ananth@...ibm.com>,
        Anil S Keshavamurthy <anil.s.keshavamurthy@...el.com>,
        "David S . Miller" <davem@...emloft.net>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH -tip V3] [BUGFIX] kprobes/x86: Do not jump-optimize
 kprobes on irq entry code

Hi Masami,

[auto build test WARNING on tip/auto-latest]
[also build test WARNING on v4.13-rc2 next-20170727]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Masami-Hiramatsu/kprobes-x86-Do-not-jump-optimize-kprobes-on-irq-entry-code/20170727-041957
config: powerpc-c2k_defconfig (attached as .config)
compiler: powerpc-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=powerpc 

All warnings (new ones prefixed by >>):

>> powerpc-linux-gnu-ld: warning: orphan section `.softirqentry.text' from `kernel/softirq.o' being placed in section `.softirqentry.text'.
>> powerpc-linux-gnu-ld: warning: orphan section `.softirqentry.text' from `kernel/softirq.o' being placed in section `.softirqentry.text'.
>> powerpc-linux-gnu-ld: warning: orphan section `.softirqentry.text' from `kernel/softirq.o' being placed in section `.softirqentry.text'.

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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