Am Thu, 19 Apr 2018 09:33:28 +0000
schrieb Jon Nettleton <jon@solid-run.com>:

> On Thu, Apr 19, 2018 at 11:19 AM Henning Schild
> <henning.schild@siemens.com> wrote:
>
> > Am Thu, 19 Apr 2018 00:32:21 -0700
> > schrieb <jon@solid-run.com>:
> > 
> > > I am now building a custom debian package from our kernel sources,
> > > the kernel compile goes fine.  The deb-pkg is failing because the
> > > number of files passed to xarg is too long.
> > >
> > > Error message is.
> > >
> > > 2018-04-19 07:11:17 - INFO     - | Using default distribution of
> > > 'unstable' in the changelog
> > > 2018-04-19 07:11:17 - INFO     - | Install lsb-release or set
> > > $KDEB_CHANGELOG_DIST explicitly
> > > 2018-04-19 07:11:17 - INFO     - | /usr/bin/xargs: md5sum:
> > > Argument list too long
> > > 2018-04-19 07:11:17 - INFO     - | scripts/package/Makefile:90:
> > > recipe for target 'deb-pkg' failed
> > > 2018-04-19 07:11:17 - INFO     - | make[1]: *** [deb-pkg] Error
> > > 126 2018-04-19 07:11:17 - INFO     - | Makefile:1347: recipe for
> > > target 'deb-pkg' failed
> > > 2018-04-19 07:11:17 - INFO     - | make: *** [deb-pkg] Error 2
> > > 2018-04-19 07:11:17 - INFO     - | WARNING: exit code 2 from a
> > > shell command.
> > >
> > > looks like on large kernel builds the file lists will need to be
> > > broken up.
> > > 
> >
> > I have seen that before. It happens in buildchroot when using
> > qemu-arm-static binfmt magic. Something in that chain seems to cause
> > problems for very long argument lists.
> > In my case it was a "make clean" and i removed the files from
> > outside the buildchroot. But since it now happened again it is
> > probably something worth looking into.
> >
> > Henning
> > 
>
> Oh interesting.  I wonder if this has something to do with the binfmt
> support in CentOS vs Debian.  I will look into it and report back.

I saw it on Gentoo building in a debian docker container. So i guess
the problem might be related to the binfmt wrapping in general, not
distro specific.

Henning