Re: [ANNOUNCE] v5.0.19-rt11

From: Sebastian Andrzej Siewior
Date: Fri May 31 2019 - 15:35:12 EST


On 2019-05-29 23:26:38 [+0200], To Thomas Gleixner wrote:
> Dear RT folks!
>
> I'm pleased to announce the v5.0.19-rt11 patch set.
>
> Changes since v5.0.19-rt10:
>
> - Ignore a warning from lockdep when lockdep is disabled for different
> lock types.
>
> - Make the cpuidle an imx6 raw_spinlock_t.
>
> - Add a proper depends in Kconfig for Atmel's tclib based clocksource.
> Otherwise the allmodconfig on !ATMEL fails.
>
> - Revert the removal of TIMER_IRQSAFE in i915 because it is required.
>
> - Rework the softirq code.
> The basic idea is to have local-lock within local_bh_disable() which is
> used for synchronisation similar to mainline. With this synchronisation
> we can't have two softirqs processed in parallel on the same CPU. This
> allows to remove the extra synchronisation we had.
>
> - Rework the workqueue code.
> The worker_pool.lock is made to raw_spinlock_t. With this change we can
> schedule workitems from preempt-disable sections and sections with
> disabled interrupts. This change allows to remove all kthread_.*
> workarounds we used to have.
>
> Known issues
> - A warning triggered in "rcu_note_context_switch" originated from
> SyS_timer_gettime(). The issue was always there, it is now
> visible. Reported by Grygorii Strashko and Daniel Wagner.
>
> - rcutorture is currently broken on -RT. Reported by Juri Lelli.
>
> The delta patch against v5.0.19-rt10 is appended below and can be found here:
>
> https://cdn.kernel.org/pub/linux/kernel/projects/rt/5.0/incr/patch-5.0.19-rt10-rt11.patch.xz
>
> You can get this release via the git tree at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git v5.0.19-rt11
>
> The RT patch against v5.0.19 can be found here:
>
> https://cdn.kernel.org/pub/linux/kernel/projects/rt/5.0/older/patch-5.0.19-rt11.patch.xz
>
> The split quilt queue is available at:
>
> https://cdn.kernel.org/pub/linux/kernel/projects/rt/5.0/older/patches-5.0.19-rt11.tar.xz

just noticed that this never made it to the due to large inline diff.
The diff can be looked up at

https://git.kernel.org/rt/linux-rt-devel/d/v5.0.19-rt11/v5.0.19-rt10

Sebastian