From: Jan Kara <jack@suse.cz>
To: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Jiri Kosina <jkosina@suse.com>,
ksummit-discuss@lists.linuxfoundation.org,
Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>,
Viresh Kumar <viresh.kumar@linaro.org>,
James Bottomley <James.Bottomley@HansenPartnership.com>,
Tejun Heo <tj@kernel.org>
Subject: Re: [Ksummit-discuss] [TECH TOPIC] asynchronous printk
Date: Wed, 20 Jul 2016 08:14:30 +0200 [thread overview]
Message-ID: <20160720061430.GF3918@quack2.suse.cz> (raw)
In-Reply-To: <20160719145509.GA563@swordfish>
On Tue 19-07-16 23:55:09, Sergey Senozhatsky wrote:
> Hello,
>
> On (07/19/16 07:45), James Bottomley wrote:
> > On Tue, 2016-07-19 at 12:47 +0900, Sergey Senozhatsky wrote:
> > > Hello,
> > >
> > > Wondering if anyone will be interested in printk-related topics
> > > (or we can handle it in the mailing list).
> > >
> > > What I have on my list is:
> >
> > Are there any bug reports for these cases? If there are, I'd use the
> > bug report as an opportunity to fix on the relevant list and if there
> > aren't, I'd say that the problem is then largely theoretical and
> > there's not much point solving it until it becomes a real problem.
>
> yes, there are reports. for instance,
> http://marc.info/?l=linux-kernel&m=146823278316663
>
> I do have same problems with pintk (lockups, stalls, etc.)
> and even more.
Yeah, and there are much more reports of these problems. Last reporter of
these issues was Vishal with his phone not being able to suspend due to too
many messages being printed, Hyper-V people reported these issues, in SUSE
we have machines which are *unable to boot* without async printk patches,
and there are more.
Honza
--
Jan Kara <jack@suse.com>
SUSE Labs, CR
next prev parent reply other threads:[~2016-07-20 8:31 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-19 3:47 [Ksummit-discuss] [TECH TOPIC] asynchronous printk 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
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 [this message]
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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20160720061430.GF3918@quack2.suse.cz \
--to=jack@suse.cz \
--cc=James.Bottomley@HansenPartnership.com \
--cc=jkosina@suse.com \
--cc=ksummit-discuss@lists.linuxfoundation.org \
--cc=penguin-kernel@I-love.SAKURA.ne.jp \
--cc=sergey.senozhatsky@gmail.com \
--cc=tj@kernel.org \
--cc=viresh.kumar@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.