* Re: [PATCH printk v2 0/2] nbcon irq_work fixes
[not found] <20260828140218.232439-1-john.ogness@linutronix.de>
@ 2026-08-28 15:36 ` Jon Hunter
0 siblings, 0 replies; only message in thread
From: Jon Hunter @ 2026-08-28 15:36 UTC (permalink / raw)
To: John Ogness, Petr Mladek
Cc: Sergey Senozhatsky, Steven Rostedt, Sebastian Andrzej Siewior,
Thierry Reding, Greg Kroah-Hartman, linux-kernel, Thomas Gleixner,
linux-tegra@vger.kernel.org
Hi John,
On 28/08/2026 15:02, John Ogness wrote:
> Hi,
>
> This is v2 of a series to address some irq_work issues with nbcon.
> Initially motivated as a workaround for hardware-related regressions
> reported [0], it turns out that the workaround is actually a nice
> improvement for nbcon deferred printing in general.
>
> v1 is here [1].
>
> John Ogness
>
> The changes since v1:
>
> - Add a preceding patch to flush the irq_work on nbcon_free(). This
> pre-existing issue was reported [2] by Sashiko while it was
> reviewing v1.
>
> [0] https://lore.kernel.org/lkml/f3757a75-0ba1-4558-bf57-f19ab7e59a4c@nvidia.com
> [1] https://lore.kernel.org/lkml/20260827184750.203521-1-john.ogness@linutronix.de
> [2] https://sashiko.dev/#/patchset/20260827184750.203521-1-john.ogness%40linutronix.de
>
> John Ogness (2):
> printk/nbcon: Flush nbcon_irq_work in nbcon_free()
> printk/nbcon: Change nbcon_irq_work to IRQ_WORK_LAZY
>
> kernel/printk/nbcon.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
I have tested these on Tegra and all is working well, so for
the series ...
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Thanks for fixing this!
Cheers
Jon
--
nvpublic
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