[CentOS-devel] centos 7.8 and kernel-3.10.0-1127.18.2.el7

Stefan Puiu

stefan.puiu at gmail.com
Thu Aug 6 16:58:22 UTC 2020


We have a CentOS 7 -based (more accurately, CentOS 7 atomic
host-based) distro that we build and run on specialized hardware. For
the kernel, we pick the CentOS 7 kernel, apply two patches (and a
different configuration) and build it. We're mostly following CentOS
7.8 at the moment, and using the 3.10.0-1127.13.1 kernel.

A few days ago, I noticed kernel-3.10.0-1127.18.2.el7 was out (and
it's labeled as a security update -
so I decided to build it. Our kernel build process involves
downloading the src.rpm, patching the spec and then calling rpmbuild.
For this latest kernel, our spec patch (which adds our 2 patches)
failed to apply - as far as I can tell, the hunks where patches are
listed, like this one:

@@ -449,6 +449,8 @@
 Patch1000: debrand-single-cpu.patch
 Patch1001: debrand-rh_taint.patch
 Patch1002: debrand-rh-i686-cpu.patch
+Patch88881: kernel_ixia.patch
+Patch88882: at24.patch

 BuildRoot: %{_tmppath}/kernel-%{KVRA}-root

I checked the new spec file, and the debrand patches are missing.
Looking at https://git.centos.org/rpms/kernel/commits/c7 (let me know
if that's the right place), I see there's a debranding change
but it simply added a README saying debranding failed.

Do I need to wait for a new change fixing this? I see older kernels
have a "debranding" commit and then a "Manual CentOS Debranding"
commit, is something like that required now as well?

Thanks in advance,

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