From: John Ogness <john.ogness@linutronix.de>
To: Petr Mladek <pmladek@suse.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Mike Galbraith <efault@gmx.de>,
RT <linux-rt-users@vger.kernel.org>
Subject: Re: v5.19-rc2-rt3: nouveau might sleep splat
Date: Fri, 05 Aug 2022 16:29:11 +0206 [thread overview]
Message-ID: <87tu6qrcq8.fsf@jogness.linutronix.de> (raw)
In-Reply-To: <YuqeB6Z0ZYNb2TxC@alley>
On 2022-08-03, Petr Mladek <pmladek@suse.com> wrote:
>> I am preparing a new series that addresses this by completely removing
>> interrupt disabling from the printk() path. This required changes to the
>> printk_enter() macro, recursion handling, and the printk-ringbuffer
>> itself.
>
> I am not going to accept any removal of disabled interrupts in
> the first round. It opens another can of worms.
To be clear, my new series only removes interrupt disabling for RT. It
uses spin_lock_irqsave() and lock_lock_irqsave() to accomplish this so
that interrupts are still disabled for all !RT preemption models.
John
prev parent reply other threads:[~2022-08-05 14:23 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-18 9:25 v5.19-rc2-rt3: nouveau might sleep splat Mike Galbraith
2022-06-24 8:42 ` Sebastian Andrzej Siewior
2022-06-24 9:52 ` Mike Galbraith
2022-06-24 10:18 ` Sebastian Andrzej Siewior
2022-06-24 10:19 ` Sebastian Andrzej Siewior
2022-06-24 14:30 ` John Ogness
2022-06-24 14:31 ` John Ogness
2022-06-24 14:39 ` Sebastian Andrzej Siewior
2022-06-25 3:26 ` Mike Galbraith
2022-07-21 13:06 ` Mike Galbraith
2022-07-25 8:15 ` Sebastian Andrzej Siewior
2022-07-25 9:58 ` John Ogness
2022-07-25 13:26 ` Mike Galbraith
2022-08-03 16:10 ` Petr Mladek
2022-08-05 14:23 ` John Ogness [this message]
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