On Sun, 17 Jul 2022 11:40:14 -0700
stan <upai...@zoho.com> wrote:
> Hi,
>
> When I built the
> kernel-5.19.0-0.rc6.20220714git4a57a8400075.49.fc37.src.rpm
> using rpmbuild, it builds without any error, but fails to boot. The
> rc4 kernel with the same configuration with one exception runs fine.
>
> The exception is the new automatic timing mitigation configuration
> option. I turned it off, single user, no internet facing services,
> amd cpu (as i understand it, has vulnerabilities, but fewer). So, no
> complaints from the build process, but the kernel looks like it is
> going to boot (the drive light comes on), and then it just stops with
> a blank screen. Nothing in the journal since it fails at the start.
>
> I'll be building the rc6 kernel with the new option enabled to see if
> that fixes things, but the kernel should still run even if the
> automatic mitigation is turned off. Should I open a bugzilla for
> this?
I checked the difference in the spec files, and I see that the
following has been added. Perhaps it is the issue?
> BuildRequires: libtracefs-devel
1035a1037,1045
> %package -n rtla
> Summary: RTLA: Real-Time Linux Analysis tools
> %description -n rtla
> The rtla tool is a meta-tool that includes a set of commands that
> aims to analyze the real-time properties of Linux. But, instead of
> testing Linux as a black box, rtla leverages kernel tracing
> capabilities to provide precise information about the properties
> and root causes of unexpected results.
>
2313a2324,2326
> pushd tools/tracing/rtla
> %{tools_make}
> popd
2587a2601,2610
> pushd tools/tracing/rtla/
> %{tools_make} DESTDIR=%{buildroot} install
> rm -f %{buildroot}%{_bindir}/osnoise
> rm -f %{buildroot}%{_bindir}/timerlat
> (cd %{buildroot}
>
> ln -sf rtla ./%{_bindir}/osnoise
> ln -sf rtla ./%{_bindir}/timerlat
> )
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