Re: [PATCH 6.8 000/715] 6.8.2-rc1 review

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Hi Sasha,

On 24/03/2024 22:22, Sasha Levin wrote:

This is the start of the stable review cycle for the 6.8.2 release.
There are 715 patches in this series, all will be posted as a response
to this one.  If anyone has any issues with these being applied, please
let me know.

Responses should be made by Tue Mar 26 10:34:31 PM UTC 2024.
Anything received after that time might be too late.

The whole patch series can be found in one patch at:
         https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/patch/?id=linux-6.8.y&id2=v6.8.1
or in the git tree and branch at:
         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.8.y
and the diffstat can be found below.

Thanks,
Sasha

...

Tejun Heo (9):
   workqueue: Move pwq->max_active to wq->max_active
   workqueue: Factor out pwq_is_empty()
   workqueue: Replace pwq_activate_inactive_work() with
     [__]pwq_activate_work()
   workqueue: Move nr_active handling into helpers
   workqueue: Make wq_adjust_max_active() round-robin pwqs while
     activating
   workqueue: RCU protect wq->dfl_pwq and implement accessors for it
   workqueue: Introduce struct wq_node_nr_active
   workqueue: Implement system-wide nr_active enforcement for unbound
     workqueues
   workqueue: Don't call cpumask_test_cpu() with -1 CPU in
     wq_update_node_max_active()


Sorry I am late on this, but I was not copied and so did not see this. I noticed a suspend regression on Tegra186 with v6.8.y and bisect is point to commit "workqueue: Implement system-wide nr_active enforcement for unbound workqueues".

Reverting commits "workqueue: Don't call cpumask_test_cpu() with -1 CPU in wq_update_node_max_active()" and "workqueue: Implement system-wide nr_active enforcement for unbound workqueues" does fix the problem.

Note that I am not seeing this regression on the mainline with v6.9-rc2 and so I am not sure if there is something else missing? I am also still seeing the problem with v6.8.3-rc1.

Jon

--
nvpublic




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