linux-kernel - Re: [kbuild-all] arch/x86/include/asm/cmpxchg.h:245:2: error: 'asm' operand has impossible constraints

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Message-ID: <84021d10-0711-d94e-c2d3-92cc670d8a2f@intel.com>
Date:   Wed, 30 Jan 2019 11:28:40 +0800
From:   Rong Chen <rong.a.chen@...el.com>
To:     Borislav Petkov <bp@...en8.de>, Philip Li <philip.li@...el.com>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        kbuild test robot <lkp@...el.com>, kbuild-all@...org,
        linux-kernel@...r.kernel.org
Subject: Re: [kbuild-all] arch/x86/include/asm/cmpxchg.h:245:2: error: 'asm'
 operand has impossible constraints


On 1/22/19 7:55 PM, Borislav Petkov wrote:
> On Tue, Jan 22, 2019 at 07:13:59PM +0800, Philip Li wrote:
>> thanks for the feedback, we will blacklist this. So may i understand based on
>> the thread at https://lists.01.org/pipermail/kbuild-all/2018-December/056225.html,
>> this is gcc-4.9 problem?
> AFAICT, this triggers only on gcc-4.9, 32-bit build. Or do you have
> other configurations which trigger it?


Hi Boris,

we have added it to the blacklist, and there's no other configuration 
found in the past reports.

Best Regards,
Rong Chen