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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

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