linux-kernel - Re: cmpxchg.h:245:2: error: ‘asm’ operand has impossible constraints

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Message-ID: <alpine.DEB.2.21.1808312240430.1349@nanos.tec.linutronix.de>
Date:   Fri, 31 Aug 2018 22:43:13 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Meelis Roos <mroos@...ux.ee>
cc:     Linux Kernel list <linux-kernel@...r.kernel.org>, x86@...nel.org,
        Peter Zijlstra <peterz@...radead.org>
Subject: Re: cmpxchg.h:245:2: error: ‘asm’ operand has impossible constraints

On Fri, 31 Aug 2018, Meelis Roos wrote:

> > > 5.3.1-14, seems to be available in 
> > > http://snapshot.debian.org/package/gcc-5/5.3.1-14/#gcc-5_5.3.1-14 - the 
> > > whole system is a snapshot of debian unstable when they stoooed 
> > > supporting pre-686 CPUs.
> > 
> > Uurgh. That's going to be a nightmare to set that one up. Let's try to nail
> > it on your machine then. Can you try to generate the intermediate file by
> > invoking: make mm/slub.i ?
> 
> Here you are.

Looks unsuspicious. Is this an entitely new issue on 4.19-rc or can you see
the same with older kernel versions?

Thanks,

	tglx