From: Peter Zijlstra <peterz@infradead.org>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
"Ted Ts'o" <tytso@mit.edu>, Greg KH <greg@kroah.com>,
Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
akpm@linux-foundation.org,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [RFC][PATCH 7/7] serial, 8250: Mostly avoid wakeups from under port->lock
Date: Wed, 21 Dec 2011 17:30:47 +0100 [thread overview]
Message-ID: <1324485047.10752.20.camel@twins> (raw)
In-Reply-To: <1324484554.10752.16.camel@twins>
On Wed, 2011-12-21 at 17:22 +0100, Peter Zijlstra wrote:
> Could you explain that more, its not actually connecting with any
> neurons..
Note that I don't actually know how uarts work. So telling me to go read
that fine^Weffin' manual/wikipedia page is a good option.
I found me this page:
http://www.lammertbies.nl/comm/info/serial-uart.html
and I guess I'll read it and pay extra attention to the flow control
part, since I found in serial_core.h that x_char is xon/xoff related.
next prev parent reply other threads:[~2011-12-21 16:31 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-21 10:57 [RFC][PATCH 0/7] improve printk reliability Peter Zijlstra
2011-12-21 10:57 ` [RFC][PATCH 1/7] arch, early_printk: Consolidate early_printk() implementations Peter Zijlstra
2011-12-21 17:01 ` Mike Frysinger
2011-12-21 17:03 ` Peter Zijlstra
2011-12-21 19:23 ` David Miller
2011-12-21 10:57 ` [RFC][PATCH 2/7] lockdep: Provide early_printk() support Peter Zijlstra
2011-12-21 10:57 ` [RFC][PATCH 3/7] printk, lockdep: Remove lockdep_off() usage Peter Zijlstra
2011-12-21 10:57 ` [RFC][PATCH 4/7] printk: Rework printk recursion Peter Zijlstra
2011-12-21 10:57 ` [RFC][PATCH 5/7] semaphore: Pull wakeup out from under sem->lock Peter Zijlstra
2011-12-21 10:57 ` [RFC][PATCH 6/7] printk: Poke printk extra hard Peter Zijlstra
2011-12-22 1:17 ` Linus Torvalds
2011-12-22 7:02 ` Ingo Molnar
2011-12-22 8:43 ` Peter Zijlstra
2011-12-22 9:03 ` Ingo Molnar
2011-12-22 9:14 ` Peter Zijlstra
2011-12-22 10:15 ` Ingo Molnar
2011-12-22 10:19 ` Peter Zijlstra
2011-12-21 10:57 ` [RFC][PATCH 7/7] serial, 8250: Mostly avoid wakeups from under port->lock Peter Zijlstra
2011-12-21 16:03 ` Alan Cox
2011-12-21 16:22 ` Peter Zijlstra
2011-12-21 16:30 ` Peter Zijlstra [this message]
2011-12-21 18:51 ` Alan Cox
2011-12-21 11:23 ` [RFC][PATCH 0/7] improve printk reliability Peter Zijlstra
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