From: Joe Perches <joe@perches.com>
To: Kay Sievers <kay@vrfy.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-arm-kernel@lists.infradead.org,
linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org,
devel@driverdev.osuosl.org, alsa-devel@alsa-project.org
Subject: Re: [PATCH 0/8] Rework KERN_<LEVEL>
Date: Tue, 05 Jun 2012 19:06:05 -0700 [thread overview]
Message-ID: <1338948365.11962.32.camel@joe2Laptop> (raw)
In-Reply-To: <CAPXgP11DA2z2y4kR8C+AGtrd_-8=2Cy0jj3GX7T5JqczNke4GQ@mail.gmail.com>
On Wed, 2012-06-06 at 03:10 +0200, Kay Sievers wrote:
> On Wed, Jun 6, 2012 at 2:46 AM, Andrew Morton <akpm@linux-foundation.org> wrote:
> > On Tue, 05 Jun 2012 17:40:05 -0700 Joe Perches <joe@perches.com> wrote:
> >
> >> On Tue, 2012-06-05 at 17:37 -0700, Andrew Morton wrote:
> >> > On Tue, 05 Jun 2012 17:07:27 -0700 Joe Perches <joe@perches.com> wrote:
> >> >
> >> > > On Tue, 2012-06-05 at 16:58 -0700, Andrew Morton wrote:
> >> > > > echo "\0014Hello Joe" > /dev/kmsg
> >> > >
> >> > > # echo -e "\x014Hello Me" > /dev/kmsg
> >> > > gives:
> >> > > 12,778,4057982669;Hello Me
> >> >
> >> > That's changed behavior.
> >>
> >> Which is an improvement too.
> >
> > No it isn't. It exposes internal kernel implementation details in
> > random weird inexplicable ways. It doesn't seem at all important
> > though.
> >
> >> I very much doubt a single app will change
> >> because of this.
> >
> > I doubt it as well.
>
> Yeah, the value of injecting such binary data is kind of questionable. :)
>
> Joe, maybe you can change printk_emit() to skip the prefix
> detection/stripping if a prefix is already passed to the function?
Sure, it's pretty trivial.
Perhaps all binary data data should be elided.
Maybe print . for all non-printable ascii chars.
next prev parent reply other threads:[~2012-06-06 2:06 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-05 9:46 [PATCH 0/8] Rework KERN_<LEVEL> Joe Perches
2012-06-05 9:46 ` [PATCH 4/8] btrfs: Use printk_get_level and printk_skip_level, add __printf, fix fallout Joe Perches
2012-06-05 21:28 ` [PATCH 0/8] Rework KERN_<LEVEL> Andrew Morton
2012-06-05 21:53 ` Kay Sievers
2012-06-05 22:11 ` Joe Perches
2012-06-05 22:17 ` Andrew Morton
2012-06-05 22:49 ` Joe Perches
2012-06-05 23:29 ` Andrew Morton
2012-06-05 23:35 ` Joe Perches
2012-06-05 23:39 ` Kay Sievers
2012-06-05 23:43 ` Joe Perches
2012-06-05 23:48 ` Kay Sievers
2012-06-05 23:52 ` Joe Perches
2012-06-05 23:58 ` Andrew Morton
2012-06-06 0:07 ` Joe Perches
2012-06-06 0:13 ` Kay Sievers
2012-06-06 0:19 ` Joe Perches
2012-06-06 0:28 ` Kay Sievers
2012-06-06 0:37 ` Joe Perches
2012-06-06 0:37 ` Andrew Morton
2012-06-06 0:40 ` Joe Perches
2012-06-06 0:46 ` Andrew Morton
2012-06-06 1:10 ` Kay Sievers
2012-06-06 2:06 ` Joe Perches [this message]
2012-06-06 3:04 ` [PATCH 9/8] printk: Only look for prefix levels in kernel messages Joe Perches
2012-06-05 23:48 ` [PATCH 0/8] Rework KERN_<LEVEL> Joe Perches
2012-06-05 22:55 ` Kay Sievers
2012-06-05 23:09 ` Andrew Morton
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