linux-kernel - Re: [PATCH 5.10 000/381] 5.10.180-rc1 review

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Date:   Wed, 17 May 2023 20:52:40 +0100
From:   "Sudip Mukherjee (Codethink)" <sudipm.mukherjee@...il.com>
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, akpm@...ux-foundation.org,
        linux@...ck-us.net, shuah@...nel.org, patches@...nelci.org,
        lkft-triage@...ts.linaro.org, pavel@...x.de, jonathanh@...dia.com,
        f.fainelli@...il.com, srw@...dewatkins.net, rwarsow@....de
Subject: Re: [PATCH 5.10 000/381] 5.10.180-rc1 review

On Wed, May 17, 2023 at 11:51:21AM +0200, Greg Kroah-Hartman wrote:
> On Wed, May 17, 2023 at 03:11:48PM +0530, Naresh Kamboju wrote:
> > On Wed, 17 May 2023 at 14:21, Greg Kroah-Hartman
> > <gregkh@...uxfoundation.org> wrote:
> > >
> > > On Tue, May 16, 2023 at 10:14:36AM +0100, Sudip Mukherjee (Codethink) wrote:
> > > > Hi Greg,
> > > >
> > > > On Mon, May 15, 2023 at 06:24:11PM +0200, Greg Kroah-Hartman wrote:
> > > > > This is the start of the stable review cycle for the 5.10.180 release.
> > > > > There are 381 patches in this series, all will be posted as a response
> > > > > to this one.  If anyone has any issues with these being applied, please
> > > > > let me know.
> > > >
> > > > Build test (gcc version 11.3.1 20230511):
> > > > mips: 63 configs -> no failure
> > > > arm: 104 configs -> no failure
> > > > arm64: 3 configs -> 1 failure
> > > > x86_64: 4 configs -> no failure
> > > > alpha allmodconfig -> no failure
> > > > powerpc allmodconfig -> no failure
> > > > riscv allmodconfig -> no failure
> > > > s390 allmodconfig -> no failure
> > > > xtensa allmodconfig -> no failure
> > > >
> > > > arm64 allmodconfig build fails with the error:
> > > >
> > > > /gcc/bin/aarch64-linux-ld: arch/arm64/kvm/hyp/nvhe/kvm_nvhe.o: in function `__kvm_nvhe___kvm_tlb_flush_vmid_ipa':
> > > > (.hyp.text+0x1a4c): undefined reference to `__kvm_nvhe_memset'
> > > > /gcc/bin/aarch64-linux-ld: arch/arm64/kvm/hyp/nvhe/kvm_nvhe.o: in function `__kvm_nvhe___kvm_tlb_flush_vmid':
> > > > (.hyp.text+0x1b20): undefined reference to `__kvm_nvhe_memset'
> > > > /gcc/bin/aarch64-linux-ld: arch/arm64/kvm/hyp/nvhe/kvm_nvhe.o: in function `__kvm_nvhe___kvm_flush_cpu_context':
> > > > (.hyp.text+0x1b80): undefined reference to `__kvm_nvhe_memset'
> > >
> > > That's odd, I don't see that symbol anywhere in the tree at all.
> > >
> > > And the only arm-related kvm changes don't have those symbols either
> > > (the other kvm changes are x86-only)
> > >
> > > Also, no one else has seen this issue.  Can you bisect?
> > 
> > This is an old issue,
> > Many other reported long back [1]
> > 
> > [1] https://lore.kernel.org/stable/CADYN=9KSKQx816id-zWepV-E3ozph3k2_i9Rhs6QseFv0hkPfg@mail.gmail.com/
> 
> Then maybe someone should submit it properly for inclusion?

Attached the backported patch. Also verified that my build failure is fixed with it.

-- 
Regards
Sudip

View attachment "0001-KVM-arm64-Link-position-independent-string-routines-.patch" of type "text/x-diff" (2964 bytes)