linux-kernel - Re: linux-next: build failure after merge of the net-next tree

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Message-ID: <20240913122552.GZ572255@kernel.org>
Date: Fri, 13 Sep 2024 13:25:52 +0100
From: Simon Horman <horms@...nel.org>
To: Stephen Rothwell <sfr@...b.auug.org.au>
Cc: Jakub Kicinski <kuba@...nel.org>, Mina Almasry <almasrymina@...gle.com>,
	David Miller <davem@...emloft.net>, Paolo Abeni <pabeni@...hat.com>,
	Networking <netdev@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the net-next tree

On Fri, Sep 13, 2024 at 02:13:17PM +1000, Stephen Rothwell wrote:
> Hi Jakub,
> 
> On Thu, 12 Sep 2024 21:00:08 -0700 Jakub Kicinski <kuba@...nel.org> wrote:
> >
> > On Thu, 12 Sep 2024 20:14:06 -0700 Mina Almasry wrote:
> > > > On Fri, 13 Sep 2024 12:53:02 +1000 Stephen Rothwell wrote:    
> > > > > /home/sfr/next/tmp/ccuSzwiR.s: Assembler messages:
> > > > > /home/sfr/next/tmp/ccuSzwiR.s:2579: Error: operand out of domain (39 is not a multiple of 4)
> > > > > make[5]: *** [/home/sfr/next/next/scripts/Makefile.build:229: net/core/page_pool.o] Error 1    
> > > >
> > > > Ugh, bad times for networking, I just "fixed" the HSR one a few hours
> > > > ago. Any idea what line of code this is? I'm dusting off my powerpc
> > > > build but the error is somewhat enigmatic.    
> > > 
> > > FWIW I couldn't reproduce this with these steps on top of
> > > net-next/main (devmem TCP is there):
> > > 
> > > make ARCH=powerpc CROSS_COMPILE=powerpc-linux-gnu- ppc64_defconfig
> > > make ARCH=powerpc CROSS_COMPILE=powerpc-linux-gnu- -j80
> > > 
> > > (build succeeds)
> > > 
> > > What am I doing wrong?  
> > 
> > I don't see it either, gcc 11.1. Given the burst of powerpc build
> > failures that just hit the list I'm wondering if this is real.
> 
> $ gcc --version
> gcc (Debian 14.2.0-3) 14.2.0
> $ ld --version
> GNU ld (GNU Binutils for Debian) 2.43.1
> $ as --version
> GNU assembler (GNU Binutils for Debian) 2.43.1
> 
> All on a Powerpc 64 LE host.

FIIW, I have been able to reproduce this locally, on x86_64,
using the powerpc64 GCC-14.2.0 cross compiler from
https://mirrors.edge.kernel.org/pub/tools/crosstool/

make ARCH=powerpc CROSS_COMPILE=powerpc64-linux- ppc64_defconfig
make ARCH=powerpc CROSS_COMPILE=powerpc64-linux-