From: Steven Rostedt <rostedt@goodmis.org>
To: Jan Kara <jack@suse.cz>
Cc: ksummit-discuss@lists.linuxfoundation.org
Subject: Re: [Ksummit-discuss] [TECH TOPIC] asynchronous printk
Date: Wed, 27 Jul 2016 22:59:45 -0400 [thread overview]
Message-ID: <20160727225945.50b29c20@grimm.local.home> (raw)
In-Reply-To: <20160719135529.GH6782@quack2.suse.cz>
On Tue, 19 Jul 2016 15:55:29 +0200
Jan Kara <jack@suse.cz> wrote:
> Well, he backed up from that statement later a bit. So when I was
> discussing this problem with him at last KS he agreed that making printk
> async is the way to go and he specifically dismissed attempts to print
> synchronously for a while and fall back to async only later. He just wanted
> some way to get things to console synchronously once things go bad (oops,
> panic,...) which is discussed elsewhere in this thread.
Note, my selftests require synchronous printing, so I hope this feature
still allows locations to force that without being in oops mode. The
tracing selftests can cause triple faults, and seeing where it happened
is a must. I already had issues once when printk changed (temporarily)
to only dump out lines when a \n was seen. That caused me to think the
wrong test was rebooting the box.
-- Steve
next prev parent reply other threads:[~2016-07-28 2:59 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-19 3:47 Sergey Senozhatsky
2016-07-19 3:56 ` Viresh Kumar
2016-07-19 6:17 ` Hannes Reinecke
2016-07-19 6:49 ` Josh Triplett
2016-07-19 7:02 ` Hannes Reinecke
2016-07-19 7:11 ` Geert Uytterhoeven
2016-07-20 6:02 ` Jan Kara
2016-07-20 22:54 ` Josh Triplett
2016-07-21 0:46 ` Sergey Senozhatsky
2016-07-21 1:12 ` Josh Triplett
2016-07-19 7:33 ` Sergey Senozhatsky
2016-07-19 7:38 ` Hannes Reinecke
2016-07-19 7:46 ` Sergey Senozhatsky
2016-07-19 8:02 ` Hannes Reinecke
2016-07-19 8:23 ` Sergey Senozhatsky
2016-07-21 10:36 ` David Woodhouse
2016-07-21 12:31 ` Jan Kara
2016-07-28 2:55 ` Steven Rostedt
2016-07-20 6:09 ` Jan Kara
2016-07-19 7:46 ` Christian Borntraeger
2016-07-19 7:53 ` Christian Borntraeger
2016-07-19 13:55 ` Jan Kara
2016-07-28 2:59 ` Steven Rostedt [this message]
2016-07-28 4:12 ` Sergey Senozhatsky
2016-07-28 13:02 ` Steven Rostedt
2016-07-20 3:35 ` Wangnan (F)
2016-07-21 1:16 ` Andy Lutomirski
2016-07-21 1:52 ` Wangnan (F)
2016-07-21 5:59 ` Hannes Reinecke
2016-07-21 10:31 ` David Woodhouse
2016-07-21 11:19 ` Josh Triplett
2016-07-21 11:59 ` David Woodhouse
2016-07-21 14:21 ` Josh Triplett
2016-07-21 14:40 ` David Woodhouse
2016-07-28 3:05 ` Steven Rostedt
2016-08-02 11:59 ` Petr Mladek
2016-07-21 15:05 ` Andy Lutomirski
2016-07-26 14:40 ` David Woodhouse
2016-07-26 15:44 ` Benjamin Herrenschmidt
2016-07-26 21:00 ` Andy Lutomirski
2016-07-27 0:03 ` David Woodhouse
2016-07-27 1:16 ` Sergey Senozhatsky
2016-07-21 10:28 ` David Woodhouse
2016-07-19 14:45 ` James Bottomley
2016-07-19 14:55 ` Sergey Senozhatsky
2016-07-19 17:58 ` James Bottomley
2016-07-19 18:24 ` Viresh Kumar
2016-07-20 2:08 ` Sergey Senozhatsky
2016-07-20 6:14 ` Jan Kara
2016-09-21 4:41 ` Sergey Senozhatsky
2016-10-31 6:54 ` Sergey Senozhatsky
2016-10-31 13:56 ` Theodore Ts'o
2016-10-31 13:59 ` Jiri Kosina
2016-10-31 14:56 ` [Ksummit-discuss] [TECH TOPIC] printk considered harmful (was: [TECH TOPIC] asynchronous printk) Sergey Senozhatsky
2016-10-31 16:18 ` Theodore Ts'o
2016-10-31 18:21 ` Sergey Senozhatsky
2016-10-31 18:26 ` [Ksummit-discuss] [TECH TOPIC] printk considered harmful Hannes Reinecke
2016-10-31 20:28 ` [Ksummit-discuss] [TECH TOPIC] printk considered harmful (was: [TECH TOPIC] asynchronous printk) Jan Kara
2016-11-01 12:27 ` [Ksummit-discuss] [TECH TOPIC] printk considered harmful Hannes Reinecke
2016-11-01 17:50 ` [Ksummit-discuss] [TECH TOPIC] printk considered harmful (was: [TECH TOPIC] asynchronous printk) Sergey Senozhatsky
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