linux-kernel - Re: [PATCH 5.15 00/72] 5.15.13-rc2 review

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Date:   Wed, 05 Jan 2022 23:45:11 +0530
From:   Jeffrin Jose T <jeffrin@...agiritech.edu.in>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     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, stable@...r.kernel.org
Subject: Re: [PATCH 5.15 00/72] 5.15.13-rc2 review

On Wed, 2022-01-05 at 15:56 +0100, Greg Kroah-Hartman wrote:
> On Wed, Jan 05, 2022 at 06:32:43PM +0530, Jeffrin Jose T wrote:
> > On Tue, 2022-01-04 at 08:41 +0100, Greg Kroah-Hartman wrote:
> > > This is the start of the stable review cycle for the 5.15.13
> > > release.
> > > There are 72 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.
> > > 
> > > Responses should be made by Thu, 06 Jan 2022 07:38:29 +0000.
> > > Anything received after that time might be too late.
> > > 
> > > The whole patch series can be found in one patch at:
> > >         
> > > https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.15.13-rc2.gz
> > > or in the git tree and branch at:
> > >         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linu
> > > x-
> > > stable-rc.git linux-5.15.y
> > > and the diffstat can be found below.
> > > 
> > > thanks,
> > > 
> > > greg k-h
> > > 
> >  hello,
> > 
> > There was a compilation error....
> > 
> > -----------x--------------x------------------x--
> > MODPOST vmlinux.symvers
> >   MODINFO modules.builtin.modinfo
> >   GEN     modules.builtin
> > BTF: .tmp_vmlinux.btf: pahole (pahole) is not available
> > Failed to generate BTF for vmlinux
> > Try to disable CONFIG_DEBUG_INFO_BTF
> > make: *** [Makefile:1183: vmlinux] Error 1
> 
> Is this a regression?  If so, what commit caused this?
> 
> > i did CONFIG_DEBUG_INFO_BTF=n  in .config and then compilation was
> > success.
> 
> Or you can install pahole, right?  That's a requirement for that
> build
> option I think.
> 
i installed pahole  which is in package "dwarves"  in debian after  
reading yours and shuah's  message

i agree with shuah's  answer. 
thanks shuah

-- 
software engineer
rajagiri school of engineering and technology - autonomous