linux-kernel - Re: [PATCH 5.4 000/222] 5.4.295-rc1 review

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Message-ID: <aFrP2KAE1cws/Hbq@duo.ucw.cz>
Date: Tue, 24 Jun 2025 18:18:32 +0200
From: Pavel Machek <pavel@...x.de>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Naresh Kamboju <naresh.kamboju@...aro.org>, stable@...r.kernel.org,
	patches@...ts.linux.dev, linux-kernel@...r.kernel.org,
	torvalds@...ux-foundation.org, kvmarm@...ts.cs.columbia.edu,
	akpm@...ux-foundation.org, linux@...ck-us.net, shuah@...nel.org,
	patches@...nelci.org, lkft-triage@...ts.linaro.org,
	jonathanh@...dia.com, f.fainelli@...il.com,
	sudipm.mukherjee@...il.com, srw@...dewatkins.net, rwarsow@....de,
	conor@...nel.org, hargar@...rosoft.com, broonie@...nel.org,
	Marc Zyngier <maz@...nel.org>, James Morse <james.morse@....com>,
	Julien Thierry <julien.thierry.kdev@...il.com>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	Russell King <linux@...linux.org.uk>,
	Linux ARM <linux-arm-kernel@...ts.infradead.org>,
	Andy Gross <agross@...nel.org>
Subject: Re: [PATCH 5.4 000/222] 5.4.295-rc1 review

Hi!

> > Build regression: stable-rc 5.4.295-rc1 arm kvm init.S Error selected
> > processor does not support `eret' in ARM mode
> > 
> > Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>
> > 
> > 
> > ## Build errors
> > arch/arm/kvm/init.S: Assembler messages:
> > arch/arm/kvm/init.S:109: Error: selected processor does not support
> > `eret' in ARM mode
> > arch/arm/kvm/init.S:116: Error: Banked registers are not available
> > with this architecture. -- `msr ELR_hyp,r1'
> > arch/arm/kvm/init.S:145: Error: selected processor does not support
> > `eret' in ARM mode
> > arch/arm/kvm/init.S:149: Error: selected processor does not support
> > `eret' in ARM mode
> > make[2]: *** [scripts/Makefile.build:345: arch/arm/kvm/init.o] Error 1
> > 
> > and
> > /tmp/cc0RDxs9.s: Assembler messages:
> > /tmp/cc0RDxs9.s:45: Error: selected processor does not support `smc
> > #0' in ARM mode
> > /tmp/cc0RDxs9.s:94: Error: selected processor does not support `smc
> > #0' in ARM mode
> > /tmp/cc0RDxs9.s:160: Error: selected processor does not support `smc
> > #0' in ARM mode
> > /tmp/cc0RDxs9.s:296: Error: selected processor does not support `smc
> > #0' in ARM mode
> > make[3]: *** [/builds/linux/scripts/Makefile.build:262:
> > drivers/firmware/qcom_scm-32.o] Error 1
> 
> That's odd, both clang and gcc don't like this?  Any chance you can do
> 'git bisect' to track down the offending commit?

We see this one, too:



/tmp/ccJcop5R.s: Assembler messages:
2033
/tmp/ccJcop5R.s:45: Error: selected processor does not support `smc #0' in ARM mode
2034
/tmp/ccJcop5R.s:95: Error: selected processor does not support `smc #0' in ARM mode
2035
/tmp/ccJcop5R.s:162: Error: selected processor does not support `smc #0' in ARM mode
2036
/tmp/ccJcop5R.s:299: Error: selected processor does not support `smc #0' in ARM mode
2037
make[2]: *** [scripts/Makefile.build:262: drivers/firmware/qcom_scm-32.o] Error 1
2038
make[2]: *** Waiting for unfinished jobs....
2039

https://gitlab.com/cip-project/cip-testing/linux-stable-rc-ci/-/jobs/10452069686

It is probably config-dependend.

https://gitlab.com/cip-project/cip-testing/linux-stable-rc-ci/-/pipelines/1886959470

Best regards,
								Pavel
-- 
DENX Software Engineering GmbH,        Managing Director: Erika Unter
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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