linux-kernel - [ANNOUNCE] 4.4.229-rt200

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Date:   Wed, 08 Jul 2020 18:44:02 -0000
From:   Daniel Wagner <dwagner@...e.de>
To:     LKML <linux-kernel@...r.kernel.org>,
        linux-rt-users <linux-rt-users@...r.kernel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Carsten Emde <C.Emde@...dl.org>,
        John Kacur <jkacur@...hat.com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Tom Zanussi <tom.zanussi@...ux.intel.com>,
        Clark Williams <williams@...hat.com>,
        Pavel Machek <pavel@...x.de>
Subject: [ANNOUNCE] 4.4.229-rt200

Hello RT-list!

I'm pleased to announce the 4.4.229-rt200 stable release.

This release is just an update to the new stable 4.4.215 version.

Note: This update required dealing with a conflict in net/core/dev.c, where
devnet_rename_seq was moved from a seqence count to an RWSEM and renamed
to devnet_rename_sem. If you encounter runtime issues that show tracebacks
in net/core/dev.c, please let me know.

Patch "net: Add a mutex around devnet_rename_seq" dropped in favour of
602c47fbf46b ("net: core: device_rename: Use rwsem instead of a seqcount")

Known issues:

  sigwaittest with hackbench as workload is able to trigger a crash on x86_64,
  the same as reported for the v4.4.220-rt196 release. The crash seems to
  be triggered by a BPF program. IIRC, BPF was never supported in v4.4-rt
  and I just forgot to disable in my configuration.

You can get this release via the git tree at:

  git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git

  branch: v4.4-rt
  Head SHA1: dd9655ee04bfb54f781974e3074a0caeb2423623

Or to build 4.4.229-rt200 directly, the following patches should be applied:

  https://www.kernel.org/pub/linux/kernel/v4.x/linux-4.4.tar.xz

  https://www.kernel.org/pub/linux/kernel/v4.x/patch-4.4.229.xz

  https://www.kernel.org/pub/linux/kernel/projects/rt/4.4/patch-4.4.229-rt200.patch.xz

Enjoy!
Daniel