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From: Leonardo Bras <leobras@redhat.com>
To: John Ogness <john.ogness@linutronix.de>
Cc: Leonardo Bras <leobras@redhat.com>,
	Ilpo =?iso-8859-1?Q?J=E4rvinen?= <ilpo.jarvinen@linux.intel.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jirislaby@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Tony Lindgren <tony@atomide.com>,
	Marcelo Tosatti <mtosatti@redhat.com>,
	LKML <linux-kernel@vger.kernel.org>,
	linux-serial <linux-serial@vger.kernel.org>
Subject: Re: [RESEND RFC PATCH v1 2/2] serial/8250: Avoid getting lock in RT atomic context
Date: Thu, 18 Jan 2024 14:50:08 -0300
Message-ID: <Zalk0Md6F12xNz91@LeoBras>
In-Reply-To: <87cytzaqdj.fsf@jogness.linutronix.de>
References: <20240116073701.2356171-1-leobras@redhat.com> <20240116073701.2356171-3-leobras@redhat.com> <75a39f0a-8f79-eacf-4a35-5de512a3cbed@linux.intel.com> <ZabJGefGkrs0SNzW@LeoBras> <87o7djaubq.fsf@jogness.linutronix.de> <ZajxMc05uVmK7e60@LeoBras> <87cytzaqdj.fsf@jogness.linutronix.de>
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On Thu, Jan 18, 2024 at 11:33:04AM +0106, John Ogness wrote:
> On 2024-01-18, Leonardo Bras <leobras@redhat.com> wrote:
> > Sure, please let me know of where can I find the latest PREEMPT_RT
> > patch series so I can re-test my bug. By what you comment, it's higly
> > probable that patch 2/2 will not be necessary.
> 
> Some links for you:
> 
> 
> The Real-Time Wiki at the Linux Foundation:
> 
> https://wiki.linuxfoundation.org/realtime/
> 
> 
> The latest development RT patch series for 6.7:
> 
> https://cdn.kernel.org/pub/linux/kernel/projects/rt/6.7/patches-6.7-rt6.tar.xz
> 
> 
> RT git (branch linux-6.7.y-rt-rebase is probably what you want):
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git
> 

Hello John, thank you for sharing the links!

> 
> > On the other hand, unless some extra work was done in preventing the
> > scenario in patch 1/2, I think that can still be discussed.
> 
> I agree. Thanks for looking into this.
> 
> John
> 

Thank you!
Leo