From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
To: Borislav Petkov <bp@alien8.de>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
Peter Zijlstra <peterz@infradead.org>,
Petr Mladek <pmladek@suse.com>,
Steven Rostedt <rostedt@goodmis.org>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: [RFC][PATCH] printk: increase devkmsg write() ratelimit
Date: Tue, 18 Dec 2018 23:55:58 +0900 [thread overview]
Message-ID: <20181218145558.GD665@tigerII.localdomain> (raw)
In-Reply-To: <20181218142623.GH7485@zn.tnic>
On (12/18/18 15:26), Borislav Petkov wrote:
> On Tue, Dec 18, 2018 at 10:07:50PM +0900, Sergey Senozhatsky wrote:
> > This is right before shutdown. dmesg is not really available anymore.
> > I can only guess why do they write it to devkmsg - to make it appear
> > on the serial/net console, perhaps. Dunno.
>
> But still, why do we want to see those messages and enlarge the
> ratelimit for that? Do they contain any particularly important
> information?
Good question. Theoretically, there can be some interesting stuff.
Examples: https://bugzilla.redhat.com/show_bug.cgi?id=1515373#c6
or https://github.com/systemd/systemd/issues/5433
-ss
next prev parent reply other threads:[~2018-12-18 14:56 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-18 9:18 [RFC][PATCH] printk: increase devkmsg write() ratelimit Sergey Senozhatsky
2018-12-18 10:48 ` Peter Zijlstra
2018-12-18 11:17 ` Sergey Senozhatsky
2018-12-18 11:29 ` Peter Zijlstra
2018-12-18 13:09 ` Sergey Senozhatsky
2018-12-18 11:47 ` Borislav Petkov
2018-12-18 13:07 ` Sergey Senozhatsky
2018-12-18 14:26 ` Borislav Petkov
2018-12-18 14:55 ` Sergey Senozhatsky [this message]
2018-12-18 15:03 ` Borislav Petkov
2018-12-18 15:14 ` Sergey Senozhatsky
2018-12-18 15:24 ` Borislav Petkov
2018-12-18 16:52 ` Sergey Senozhatsky
2018-12-18 17:21 ` Peter Zijlstra
2018-12-18 17:37 ` Steven Rostedt
2018-12-19 8:50 ` Petr Mladek
2018-12-20 11:35 ` Sergey Senozhatsky
2018-12-20 13:58 ` Steven Rostedt
2018-12-21 7:32 ` Sergey Senozhatsky
2018-12-18 17:47 ` Borislav Petkov
2018-12-19 1:46 ` Sergey Senozhatsky
2018-12-18 14:02 ` 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=20181218145558.GD665@tigerII.localdomain \
--to=sergey.senozhatsky@gmail.com \
--cc=akpm@linux-foundation.org \
--cc=bp@alien8.de \
--cc=linux-kernel@vger.kernel.org \
--cc=peterz@infradead.org \
--cc=pmladek@suse.com \
--cc=rostedt@goodmis.org \
--cc=sergey.senozhatsky.work@gmail.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox