Re: Early boot became slower

From	deloptes <deloptes@gmail.com>
Newsgroups	linux.debian.user
Subject	Re: Early boot became slower
Date	2017-01-28 23:00 +0100
Message-ID	<t4Jcm-6Pp-5@gated-at.bofh.it> (permalink)
References	(6 earlier) <t42K5-5KK-7@gated-at.bofh.it> <t4aRj-2ha-15@gated-at.bofh.it> <t4i2u-6B5-23@gated-at.bofh.it> <t4lWq-NN-23@gated-at.bofh.it> <t4EPo-4iC-15@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Mattia Oss wrote:

> BUT, I made a progress. :)
> I installed linux-source-4.9 and compiled the kernel with the 4.8.0-1
> config. The result: it boots fast! :)
> 

printk.time=1 as kernel param at boot would help you find out where it slows
down. It looks like something takes more time to initialize, might be
because in 4.8.0-2 it is a module. There were also some interesting stories
about inteldrmfb, but I can't recall - it might be related.


> This is the kernel log of the custom kernel:
>
https://github.com/maistoast/share/blob/master/kernel/log/4.9.2/dmesg_4.9.2--bymattia
> 
> As you can see it uses simplefb and not vesafb. I'm quite sure that this
> is the problem. As Sven Joachim pointed out, the Debian devs disabled
> simplefb because it has problems with KMS framebuffer. Reading the link
> he provided they disabled the X86_SYSFB and FB_SIMPLE options to fix
> some bugs. I think there's no solution for me because these options are
> not enabled in the Debian kernel anymore.. :/
> 
> Se either I use a custom kernel, or I keep my sweet fat characters with
> the Debian kernel.

I prefer to build and keep custom kernel

regards

Thread

Early boot became slower Mattia Oss <mais.toast@gmail.com> - 2017-01-24 17:20 +0100
  Re: Early boot became slower Sven Joachim <svenjoac@gmx.de> - 2017-01-24 17:40 +0100
    Re: Early boot became slower Mattia Oss <mais.toast@gmail.com> - 2017-01-24 18:10 +0100
      Re: Early boot became slower Mattia Oss <mais.toast@gmail.com> - 2017-01-25 16:30 +0100
        Re: Early boot became slower Sven Joachim <svenjoac@gmx.de> - 2017-01-25 20:40 +0100
          Re: Early boot became slower Mattia Oss <mais.toast@gmail.com> - 2017-01-26 18:50 +0100
            Re: Early boot became slower Felix Miata <mrmazda@earthlink.net> - 2017-01-26 20:20 +0100
              Re: Early boot became slower Mattia Oss <mais.toast@gmail.com> - 2017-01-27 01:40 +0100
                Re: Early boot became slower Felix Miata <mrmazda@earthlink.net> - 2017-01-27 10:20 +0100
                Re: Early boot became slower Mattia Oss <mais.toast@gmail.com> - 2017-01-27 18:00 +0100
                Re: Early boot became slower Felix Miata <mrmazda@earthlink.net> - 2017-01-27 19:10 +0100
                Re: Early boot became slower Lisi Reisz <lisi.reisz@gmail.com> - 2017-01-27 20:20 +0100
                Early boot became slower Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.com> - 2017-01-30 10:10 +0100
                Re: Early boot became slower Felix Miata <mrmazda@earthlink.net> - 2017-01-30 11:30 +0100
                Early boot became slower Jonathan de Boyne Pollard <J.deBoynePollard-newsgroups@NTLWorld.com> - 2017-01-30 23:50 +0100
                Re: Early boot became slower Felix Miata <mrmazda@earthlink.net> - 2017-01-31 01:00 +0100
                Re: Early boot became slower David Wright <deblis@lionunicorn.co.uk> - 2017-01-31 04:00 +0100
                Re: Early boot became slower deloptes <deloptes@gmail.com> - 2017-01-31 18:30 +0100
                Re: Early boot became slower deloptes <deloptes@gmail.com> - 2017-01-27 22:10 +0100
                Re: Early boot became slower Mattia Oss <mais.toast@gmail.com> - 2017-01-28 18:20 +0100
                Re: Early boot became slower deloptes <deloptes@gmail.com> - 2017-01-28 23:00 +0100
                Re: Early boot became slower Felix Miata <mrmazda@earthlink.net> - 2017-01-28 23:10 +0100
            Re: Early boot became slower deloptes <deloptes@gmail.com> - 2017-01-26 20:50 +0100

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