linux-kernel - Re: Fwd: [6.5.1] Slow boot and opening files (RIP: kvfree_rcu

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Message-ID: <ZPhVFJXHchy+hbuR@pc636>
Date:   Wed, 6 Sep 2023 12:31:48 +0200
From:   Uladzislau Rezki <urezki@...il.com>
To:     Marcus Seyfarth <m.seyfarth@...il.com>
Cc:     Uladzislau Rezki <urezki@...il.com>, paulmck@...nel.org,
        Bagas Sanjaya <bagasdotme@...il.com>,
        Ziwei Dai <ziwei.dai@...soc.com>, linux-kernel@...r.kernel.org,
        rcu@...r.kernel.org
Subject: Re: Fwd: [6.5.1] Slow boot and opening files (RIP: kvfree_rcu_bulk)

On Tue, Sep 05, 2023 at 09:07:40PM +0200, Marcus Seyfarth wrote:
>     Good. Please do not include that patch on top of 6.5.1 and higher kernels.
>     It just
>     breaks the things and is not considered as applicable, because the
>     functionality
>     which improves reclaim process is in place.
> 
>     As for slow boot up time, it is another issue and not related to RCU, IMHO.
> 
> 
> Thanks for your help, I will  close the RCU-related bug report and file a
> seperate report for the boot/shutdown/reboot problem.
>
You are welcome! Thank you for closing an RCU report. When it comes to
a boot time issue, i see that user space is up and running and it seems
kernel loading process is ongoing. It might be that some modules during
inserting/probing take time. Like you mentioned, firmware related timing
issues.

--
Uladzislau Rezki