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Message-ID: <20220315092219.GC8939@worktop.programming.kicks-ass.net>
Date: Tue, 15 Mar 2022 10:22:19 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: Stephen Rothwell <sfr@...b.auug.org.au>
Cc: Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...hat.com>,
"H. Peter Anvin" <hpa@...or.com>,
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 tip tree
On Tue, Mar 15, 2022 at 04:37:47PM +1100, Stephen Rothwell wrote:
> Hi all,
>
> On Tue, 15 Mar 2022 16:23:27 +1100 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> >
> > On Tue, 15 Mar 2022 14:06:44 +1100 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> > >
> > > After merging the irqchip tree, today's linux-next build (x86_64
> > > allmodconfig) failed like this:
> > >
> > > arch/x86/kernel/cpuid.o: warning: objtool: file already has .orc_unwind section, skipping
> > > make[3]: *** [/home/sfr/next/next/scripts/Makefile.modfinal:61: arch/x86/kernel/cpuid.ko] Error 255
> > > arch/x86/kernel/msr.o: warning: objtool: file already has .orc_unwind section, skipping
> > > make[3]: *** [/home/sfr/next/next/scripts/Makefile.modfinal:61: arch/x86/kernel/msr.ko] Error 255
> > > arch/x86/events/intel/intel-uncore.o: warning: objtool: file already has .retpoline_sites, skipping
> > > arch/x86/events/intel/intel-uncore.o: warning: objtool: file already has .ibt_endbr_seal, skipping
> > > arch/x86/events/intel/intel-uncore.o: warning: objtool: file already has .orc_unwind section, skipping
> > > make[3]: *** [/home/sfr/next/next/scripts/Makefile.modfinal:61: arch/x86/events/intel/intel-uncore.ko] Error 255
> > >
> > > I couldn't see anything int the irqchip tree that would cause this,
> > > so I deleted my object directory and redid the build and this time
> > > it succeeded.
> > >
> > > I suspect some change in the tip tree has brought this on (it is merged
> > > just a bit before the irqchip tree).
> >
> > This time after the merging usb trees:
> >
> > drivers/phy/qualcomm/phy-qcom-usb-hs.o: warning: objtool: file already has .orc_unwind section, skipping
> > make[3]: *** [scripts/Makefile.modfinal:61: drivers/phy/qualcomm/phy-qcom-usb-hs.ko] Error 255
> > drivers/phy/qualcomm/phy-qcom-usb-hsic.o: warning: objtool: file already has .orc_unwind section, skipping
> > make[3]: *** [scripts/Makefile.modfinal:61: drivers/phy/qualcomm/phy-qcom-usb-hsic.ko] Error 255
> >
> > I just removed the drivers/phy/qualcomm directory from the object tree
> > and rebuilt.
> >
> > Then got this:
> >
> > drivers/phy/ti/phy-tusb1210.o: warning: objtool: file already has .orc_unwind section, skipping
> > make[3]: *** [/home/sfr/next/next/scripts/Makefile.modfinal:61: drivers/phy/ti/phy-tusb1210.ko] Error 255
> >
> > So removed the drivers/phy/ti directory and rebuilt and the build
> > succeeded.
> >
> > I assume that something is being left around or reprocessed when it
> > should not be.
>
> Maybe commit
>
> 8856dadf7ad3 ("Kbuild: Allow whole module objtool runs")
Almost, it's this in combination with a follow up that uses it. I've
just managed to beat it into submission, will hopefully be cured for
tomorrow's build.
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