Bug#384881: [Pkg-uml-pkgs] Bug#384881: provide amd64 build of user-mode-linux

[Ardo van Rangelrooij]

Mattia Dongili (malattia at linux.it) wrote:
> Hi there Ardo!
> 
> On Tue, September 5, 2006 5:20 am, Ardo van Rangelrooij said:
> > Mattia Dongili (malattia at linux.it) wrote:
> >> Hello!
> [...]
> >> Ardo: it seems very similar to your old diff (a couple of months ago),
> >> have you benn able to go further with the amd64 experiment?
> >
> > I played some more with this evening.  I got quite a lot further, but it
> > still
> > didn't make it through a successful rootstrap run: It hung at the 'sync'
> > step
> 
> "hung" as in "it sits there forever"? oooh so sad... this is not very easy
> to debug then.

Yep.  One moment the various 'linux' processes are at the top in `top`, the
next moment they're gone and nothing happens anymore.

> > in debootstrap most of the times, but occaisionally I had it hung already
> > some
> > time earlier during the package unpack/install/configure.
> 
> Hummm... things to check/try out popping out of my head:
> - /dev/shm usage (use df -h), if it goes low (very low) increase it
> - set debug=true, put an "exit 1" before debootstrap then run debootstrap
> manually from the provided shell (well... probably not that useful), be
> careful, no Ctrl-C there :)
> - start uml_mconsole and send a sysrq+t and see who is hung and where
> - add "set -x" to all rootstrap modules :)
> - strace deboostrap in the "debian" module

I'll try these and let you know what's up.

In the cases where I got the farthest, it's the 'sync' process that hung,
called from debootstrap.  In other cases it was 'dpkg-deb' that hung, also
called from debootstrap.

> > I've been using the latest user-mode-linus and rootstrap 3.22.  Later this
> > week I'll try with rootstrap 3.23.  Let's see whether that makes a
> > difference.
> 
> eh, I don't think it'll change that much, but let's see.

Yeah...
 
> > I wish there was a way to get somore debugging going...
> 
> me too :)
> 
> Thanks a lot

You're welcome.

Thanks,
Ardo
-- 
Ardo van Rangelrooij                                     Debian XML/SGML Group
<ardo at debian.org>              <debian-xml-sgml-devel at lists.alioth.debian.org>
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