[ANNOUNCE] v5.14-rc3-rt1

From: Sebastian Andrzej Siewior
Date: Fri Jul 30 2021 - 07:07:59 EST


Dear RT folks!

I'm pleased to announce the v5.14-rc3-rt1 patch set.

Changes since v5.13-rc3-rt1:

- Update to v5.14-rc3

- Update the locking bits.

- Update the mm/slub bits from Vlastimil Babka. The SLUB_CPU_PARTIAL
can now be enabled/ disabled. There is a significant hackbench
related regression due to the rework compared to the old SLUB bits
we had. However I haven't seen anything in real-world workload. If
there is anything, please let me know.

- The "Memory controller" (CONFIG_MEMCG) has been disabled due to
optimisations which it received as it made it incompatible with
PREEMPT_RT.

- A RCU and ARM64 warning has been fixed by Valentin Schneider. It is
still not clear if the RCU related change is correct.

- A fix for a ARM64 regression which popped up in the v5.13 released
that led to a freeze while starting the init process.

Known issues
- netconsole triggers WARN.

You can get this release via the git tree at:

git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git v5.14-rc3-rt1

The RT patch against v5.14-rc3 can be found here:

https://cdn.kernel.org/pub/linux/kernel/projects/rt/5.14/older/patch-5.14-rc3-rt1.patch.xz

The split quilt queue is available at:

https://cdn.kernel.org/pub/linux/kernel/projects/rt/5.14/older/patches-5.14-rc3-rt1.tar.xz

Sebastian