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Re: [PATCH -v4 2/2] printk: Add kernel parameter to control writes to /dev/kmsg

From Borislav Petkov <bp@alien8.de>
Newsgroups linux.kernel
Subject Re: [PATCH -v4 2/2] printk: Add kernel parameter to control writes to /dev/kmsg
Date 2016-07-18 10:10 +0200
Message-ID <rWbMJ-3DS-9@gated-at.bofh.it> (permalink)
References (5 earlier) <rW6k1-bI-1@gated-at.bofh.it> <rW8Fb-1zz-5@gated-at.bofh.it> <rW9hT-22U-3@gated-at.bofh.it> <rWba1-3by-11@gated-at.bofh.it> <rWbjI-3eT-19@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Mon, Jul 18, 2016 at 03:38:45PM +0800, Dave Young wrote:
> no printk.devkmsg= on kernel cmdline
>    -> unlocked, default is off, writing to /dev/kmsg is forbidded
>       -> usespace set sysctl printk.devkmsg=on
>          -> writing to /dev/kmsg is allowed.

And that helps how exactly?

I don't understand why you're harping on the ratelimiting. It is a sane
default for the *default* case. Userspace should switch to its own
logging scheme when it has started anyway.

If you still want to see *all* messages, you boot with "=on" or set it
through sysctl.

So what is the problem?!

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
--

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Thread

Re: [PATCH -v4 2/2] printk: Add kernel parameter to control writes  to /dev/kmsg Dave Young <dyoung@redhat.com> - 2016-07-15 08:30 +0200
  Re: [PATCH -v4 2/2] printk: Add kernel parameter to control writes  to /dev/kmsg Borislav Petkov <bp@alien8.de> - 2016-07-15 14:50 +0200
    Re: [PATCH -v4 2/2] printk: Add kernel parameter to control writes  to /dev/kmsg Dave Young <dyoung@redhat.com> - 2016-07-16 12:50 +0200
      Re: [PATCH -v4 2/2] printk: Add kernel parameter to control writes  to /dev/kmsg Borislav Petkov <bp@alien8.de> - 2016-07-17 07:50 +0200
        Re: [PATCH -v4 2/2] printk: Add kernel parameter to control writes  to /dev/kmsg Dave Young <dyoung@redhat.com> - 2016-07-18 04:20 +0200
          Re: [PATCH -v4 2/2] printk: Add kernel parameter to control writes  to /dev/kmsg Borislav Petkov <bp@alien8.de> - 2016-07-18 06:50 +0200
            Re: [PATCH -v4 2/2] printk: Add kernel parameter to control writes  to /dev/kmsg Dave Young <dyoung@redhat.com> - 2016-07-18 07:30 +0200
              Re: [PATCH -v4 2/2] printk: Add kernel parameter to control writes  to /dev/kmsg Borislav Petkov <bp@alien8.de> - 2016-07-18 09:30 +0200
                Re: [PATCH -v4 2/2] printk: Add kernel parameter to control writes  to /dev/kmsg Dave Young <dyoung@redhat.com> - 2016-07-18 09:40 +0200
                Re: [PATCH -v4 2/2] printk: Add kernel parameter to control writes  to /dev/kmsg Borislav Petkov <bp@alien8.de> - 2016-07-18 10:10 +0200
                Re: [PATCH -v4 2/2] printk: Add kernel parameter to control writes  to /dev/kmsg Dave Young <dyoung@redhat.com> - 2016-07-18 10:20 +0200
                Re: [PATCH -v4 2/2] printk: Add kernel parameter to control writes  to /dev/kmsg Borislav Petkov <bp@alien8.de> - 2016-07-18 11:10 +0200
                Re: [PATCH -v4 2/2] printk: Add kernel parameter to control writes  to /dev/kmsg Dave Young <dyoung@redhat.com> - 2016-07-19 02:40 +0200
                Re: [PATCH -v4 2/2] printk: Add kernel parameter to control writes  to /dev/kmsg Borislav Petkov <bp@alien8.de> - 2016-07-19 08:50 +0200
                Re: [PATCH -v4 2/2] printk: Add kernel parameter to control writes  to /dev/kmsg Dave Young <dyoung@redhat.com> - 2016-07-19 09:10 +0200
                Re: [PATCH -v4 2/2] printk: Add kernel parameter to control writes  to /dev/kmsg Steven Rostedt <rostedt@goodmis.org> - 2016-07-25 17:20 +0200

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