linux-kernel - Re: sparc gcc 7.1 compile issue

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Message-Id: <20170604.162226.1986766921223996448.davem@davemloft.net>
Date:   Sun, 04 Jun 2017 16:22:26 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     wbx@...nadk.org
Cc:     glaubitz@...sik.fu-berlin.de, linux-kernel@...r.kernel.org,
        sparclinux@...r.kernel.org
Subject: Re: sparc gcc 7.1 compile issue

From: Waldemar Brodkorb <wbx@...nadk.org>
Date: Sun, 4 Jun 2017 16:40:45 +0200

> Hi Adrian,
> John Paul Adrian Glaubitz wrote,
> 
>> On 06/02/2017 07:28 PM, David Miller wrote:
>> >> Isn't a bug in the kernel if an application is able to crash to the point
>> >> that the machine has to be hard-rebooted?
>> > 
>> > It can be a bug in the compiler too and not necessarily the kernel's
>> > fault which is what I think is happening in your case.
>> 
>> So, in your point of view it's perfectly fine if an application is able
>> to crash the whole kernel with just user privileges?
>> 
>> Shouldn't the kernel be able to cope with that?
> 
> I think he means your kernel you are running might be miscompiled
> with gcc 7.1.

That's exactly what I am saying.