Re: Preemp-RT kernel builds from 6.3 on fails on Xilinx Zynq 7Z010

[Pavel Pisa <ppisa@pikron.com>]

Dear Sebastian,

tanks much for the time investigated into the problem analysis
and designing solution. Pavel Hronek has checked actual daily runs
of for-kbuild-bot/current-stable of

https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel

and manually tested your 6.3 RT version and reports that is is stable
now.

But he has problem that his e-mail didnot pass mailing list filters
rules. I am trying to resnet from my other e-mail. I cannot send from
my university account as well so I ma trying my company one if
it passes

-------- Forwarded Message --------
Subject: Re: Preemp-RT kernel builds from 6.3 on fails on Xilinx Zynq 7Z010
Date: Sun, 21 May 2023 16:42:13 +0200
From: Pavel Hronek <hronepa1@fel.cvut.cz>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
CC: Pavel Pisa <pisa@cmp.felk.cvut.cz>, linux-rt-users@vger.kernel.org, 
Thomas Gleixner <tglx@linutronix.de>

Dear maintainers,

Thank you for looking into the issue.

On 19. 05. 23 20:52, Sebastian Andrzej Siewior wrote:
> I just released v6.3.3-rt15. Could you please give it a try and report
> back if all problems are gone or not? Based on the backtrace I can't
> tell if the other problems are follow-up or other things.

The last two rounds of automated tests on 6.4.0-rc2-rt1
(https://canbus.pages.fel.cvut.cz/can-latester/inspect.html?kernel=rt&flood=1&prio=1&kern=1&load=1)
have completed without the lockup and the messages no longer appear in 
the console.

I've also run the tests manually on 6.3.3-rt15 and the same workload 
that would freeze an earlier version of 6.3 within a minute has now 
lasted for over 30 minutes before I stopped it. No warnings here either. 
I think I can confirm the problems are gone.

Best regards,

Pavel Hronek


On Friday 19 of May 2023 20:52:41 Sebastian Andrzej Siewior wrote:
> On 2023-05-14 22:17:46 [+0200], Pavel Pisa wrote:
> > Dear PREEMPT RT Linux kernel maintainers,
> >
> > we have started to experience failures of PREEMPT RT kernels builds from
> > 6.3 RC versions. We use kernel on MZ_APO educational kits
> > based on MicroZed, Xilinx Zynq 7Z010 SoC. More about actual HW
>
> I just released v6.3.3-rt15. Could you please give it a try and report
> back if all problems are gone or not? Based on the backtrace I can't
> tell if the other problems are follow-up or other things.
>
> Sebastian


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