From: Tony Lindgren <tony@atomide.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Jiri Slaby <jslaby@suse.com>,
linux-serial@vger.kernel.org,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Subject: Re: [PATCH v2 0/8] serial: Disable DMA and PM on kernel console
Date: Fri, 14 Feb 2020 13:41:28 -0800 [thread overview]
Message-ID: <20200214214128.GW16391@atomide.com> (raw)
In-Reply-To: <20200214163325.GA3992427@kroah.com>
* Greg Kroah-Hartman <gregkh@linuxfoundation.org> [200214 20:03]:
> On Fri, Feb 14, 2020 at 01:43:31PM +0200, Andy Shevchenko wrote:
> > This is second attempt [1] to get rid of problematic DMA and PM calls
> > in the serial kernel console code.
> >
> > Kernel console is sensitive to any kind of complex work needed to print
> > out anything on it. One such case is emergency print during Oops.
> >
> > Patches 1-3 are preparatory ones.
>
> I've applied these first 3, as they are "obvious" :)
>
> I'll let others weigh in on the other patches here, as I'd like to see
> if Tony and others feel it solves their issues or not.
Yes with the pm_runtime_get_sync/pm_runtime_put_sync change for
patch 5/8 things work nicely for me. But as it looks like there will
be another revision of the patches so I'll wait for that before
acking.
Regards,
Tony
next prev parent reply other threads:[~2020-02-14 21:41 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-14 11:43 [PATCH v2 0/8] serial: Disable DMA and PM on kernel console Andy Shevchenko
2020-02-14 11:43 ` [PATCH v2 1/8] serial: core: Introduce uart_console_enabled() helper Andy Shevchenko
2020-02-14 11:43 ` [PATCH v2 2/8] serial: core: Consolidate spin lock initialization code Andy Shevchenko
2020-02-14 11:43 ` [PATCH v2 3/8] serial: core: use octal permissions on module param Andy Shevchenko
2020-02-14 16:27 ` Greg Kroah-Hartman
2020-02-17 9:15 ` Andy Shevchenko
2020-02-14 11:43 ` [PATCH v2 4/8] serial: core: Allow detach and attach serial device for console Andy Shevchenko
2020-02-14 16:28 ` Greg Kroah-Hartman
2020-02-17 10:23 ` Andy Shevchenko
2020-02-14 11:43 ` [PATCH v2 5/8] serial: 8250_port: Don't use power management for kernel console Andy Shevchenko
2020-02-14 13:39 ` Russell King - ARM Linux admin
2020-02-14 17:13 ` Tony Lindgren
2020-02-14 18:09 ` Andy Shevchenko
2020-02-14 18:42 ` Tony Lindgren
2020-02-14 19:06 ` Tony Lindgren
2020-02-14 18:14 ` Tony Lindgren
2020-02-14 18:56 ` Andy Shevchenko
2020-02-14 19:02 ` Tony Lindgren
2020-02-14 11:43 ` [PATCH v2 6/8] serial: 8250_port: Disable DMA operations " Andy Shevchenko
2020-02-14 16:30 ` Greg Kroah-Hartman
2020-02-17 9:18 ` Andy Shevchenko
2020-02-14 11:43 ` [PATCH v2 7/8] serial: 8250_mtk: Remove duplicating code to disable DMA Andy Shevchenko
2020-02-14 11:43 ` [PATCH v2 8/8] serial: 8250_omap: " Andy Shevchenko
2020-02-14 16:33 ` [PATCH v2 0/8] serial: Disable DMA and PM on kernel console Greg Kroah-Hartman
2020-02-14 21:41 ` Tony Lindgren [this message]
2020-02-17 10:05 ` Andy Shevchenko
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