linux-kernel - [ANNOUNCE] v5.14-rc3-rt1

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Message-ID: <20210730110753.jvli6alm63h5lefy@linutronix.de>
Date:   Fri, 30 Jul 2021 13:07:53 +0200
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        linux-rt-users@...r.kernel.org,
        Steven Rostedt <rostedt@...dmis.org>
Subject: [ANNOUNCE] v5.14-rc3-rt1

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