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Re: armel/marvell kernel size

Cross-posted to 2 groups.

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Dear Rogério,

Good to hear from you again!

On Thu, Mar 22, 2018 at 12:12 PM, Rogério Brito <rbrito@ime.usp.br> wrote:
> Hi, all (and sorry for jumping in a bit late).
>
> On 2018-02-17 10:48, Salvatore Bonaccorso wrote:
>> On Tue, Jan 23, 2018 at 06:30:23PM +0000, Ben Hutchings wrote:
>>> There's an upstream change in cfg80211 that enables direct-loading of
>>> wireless rules, which requires public key crypto in the kernel.  There
>>> doesn't appear to be any option to disable that mode, even though we
>>> don't need it because crda still works.  Maybe you could disable
>>> wireless networking completely?
>>>
>>> Some options that could possibly be changed from y to m:
>>>
>>> - I2C, I2C_CHARDEV, I2C_MV64XXX.  initramfs-tools should include I2C
>>> drivers to the initramfs if needed, but I'm not certain.
>>>
>>> - MTD, MTD_CMDLINE_PARTS, etc.  But I'm pretty sure this will break
>>> some systems unless initramfs-tools is updated to include and load the
>>> cmdlinepart module.
>>>
>>> - RTC_DRV_MV (and disable RTC_HCTOSYS).  There's a udev rule that
>>> should load the system clock from the first RTC if its driver is a
>>> module.
>>>
>>> - SPI_ORION.  initramfs-tools should include this in the initramfs if
>>> needed, but I'm not certain.
>>>
>>> Some options that could possibly be disabled:
>>>
>>> - AUDIT.  This is quite a niche feature.
>>>
>>> Also try comparing the complete configs over time and looking for
>>> symbols newly set to y.
>>
>> Did you had a chance to look at Ben's suggestions or ideas?
>
> If nobody is working on getting a new kernel working on armel, I would
> like to (at least, unsuccessfully) try to get it to compile.
>
> At worst, I believe, I can gain some knowledge and compare what I get from
> this armel kernel with a Kurobox HD (powerpc-based; see some notes at [0])...
>
> [0]: http://cynic.cc/blog/posts/simple-annotations-on-compiling-a-linux-kernel-for-an-embedded-platform/
>
> For this task, I have some questions:

I have a wiki entry to help you:
- https://wiki.debian.org/HowToCrossBuildAnOfficialDebianKernelPackage

However, Kurobox HD is not armel, so you need to use Kurobox Pro, if
you still have it.

Cheers,
-- 
Roger Shimizu, GMT +9 Tokyo
PGP/GPG: 4096R/6C6ACD6417B3ACB1

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Re: armel/marvell kernel size Ben Hutchings <ben@decadent.org.uk> - 2018-01-18 05:30 +0100
  Re: armel/marvell kernel size Roger Shimizu <rogershimizu@gmail.com> - 2018-01-22 15:00 +0100
    Re: armel/marvell kernel size Ben Hutchings <ben@decadent.org.uk> - 2018-01-23 19:40 +0100
      Re: armel/marvell kernel size Ben Hutchings <ben@decadent.org.uk> - 2018-01-26 19:00 +0100
      Re: armel/marvell kernel size Salvatore Bonaccorso <carnil@debian.org> - 2018-02-17 13:50 +0100
        Re: armel/marvell kernel size Bastian Blank <waldi@debian.org> - 2018-02-17 14:20 +0100
          Re: armel/marvell kernel size Roger Shimizu <rogershimizu@gmail.com> - 2018-03-22 13:00 +0100
        Re: armel/marvell kernel size Roger Shimizu <rogershimizu@gmail.com> - 2018-03-22 13:00 +0100
          Re: armel/marvell kernel size Rogério Brito <rbrito@gmail.com> - 2018-03-22 19:20 +0100
        Re: armel/marvell kernel size Ben Hutchings <ben@decadent.org.uk> - 2018-03-23 00:10 +0100
        Re: armel/marvell kernel size Ben Hutchings <ben@decadent.org.uk> - 2018-03-24 03:00 +0100
          Re: armel/marvell kernel size Rogério Brito <rbrito@gmail.com> - 2018-03-27 07:50 +0200
            Re: armel/marvell kernel size Stefan Monnier <monnier@iro.umontreal.ca> - 2018-03-27 14:40 +0200
              Re: armel/marvell kernel size Rogério Brito <rbrito@ime.usp.br> - 2018-03-27 22:30 +0200
                Re: armel/marvell kernel size Rick Thomas <rbthomas@pobox.com> - 2018-03-27 22:50 +0200
                Re: armel/marvell kernel size Rogério Brito <rbrito@ime.usp.br> - 2018-03-27 23:30 +0200
                Re: armel/marvell kernel size Rick Thomas <rbthomas@pobox.com> - 2018-03-28 11:30 +0200
                Re: armel/marvell kernel size Federico Pietro Briata <federico@briata.org> - 2018-03-28 14:30 +0200
                Re: armel/marvell kernel size Roger Shimizu <rogershimizu@gmail.com> - 2018-04-01 15:30 +0200
                Re: armel/marvell kernel size Rogério Brito <rbrito@ime.usp.br> - 2018-04-03 08:00 +0200
                Re: armel/marvell kernel size Roger Shimizu <rogershimizu@gmail.com> - 2018-04-07 16:20 +0200
                Re: armel/marvell kernel size Roger Shimizu <rogershimizu@gmail.com> - 2018-04-07 17:00 +0200
                Re: armel/marvell kernel size Roger Shimizu <rogershimizu@gmail.com> - 2018-04-13 02:10 +0200
                Re: armel/marvell kernel size Roger Shimizu <rogershimizu@gmail.com> - 2018-04-15 18:30 +0200
                Re: armel/marvell kernel size Rick Thomas <rbthomas@pobox.com> - 2018-04-02 01:50 +0200
                Re: armel/marvell kernel size Stefan Monnier <monnier@iro.umontreal.ca> - 2018-03-27 23:30 +0200
            Re: armel/marvell kernel size Ben Hutchings <ben@decadent.org.uk> - 2018-03-27 21:10 +0200
              Re: armel not to be released anymore? (was: armel/marvell kernel  size) Ben Hutchings <ben@decadent.org.uk> - 2018-03-27 21:30 +0200
              armel not to be released anymore? (was: armel/marvell kernel size) "W. Martin Borgert" <debacle@debian.org> - 2018-03-27 21:40 +0200
                Re: armel not to be released anymore? (was: armel/marvell kernel size) Paul Wise <pabs@debian.org> - 2018-03-28 06:40 +0200
              Re: armel/marvell kernel size Rogério Brito <rbrito@ime.usp.br> - 2018-03-27 22:50 +0200

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