Re: Warning from free_init_pages with large initrd

From: Richard W.M. Jones
Date: Tue Sep 27 2016 - 08:50:56 EST


On Tue, Sep 27, 2016 at 11:20:06AM +0100, Sitsofe Wheeler wrote:
> (See http://www.gossamer-threads.com/lists/linux/kernel/2534175 for
> the history of this thread )
>
> On 26 September 2016 at 20:00, Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote:
> >
> > but the warning in free_init_pages() is about alignment, not size...
> > Maybe the concatenation is bad?
>
> What would l have to pull apart to be able to tell?
>
> Having said that I've just noticed that newer versions of the script
> concatenate an ISO to the initrd (rather than another cpio) -
> https://github.com/rhinstaller/livecd-tools/commit/8067be50907da9461e442c11a664c89e066ccac6#diff-88c69e43bb69726c532af3a136cc50e8
> . Unfortunately after rebuilding the initrd with the
> livecd-iso-to-pxeboot version from Fedora 24 the warning persists.
> CC'ing a few of the tool's authors on this email.

I would just comment that I wrote livecd-iso-to-pxeboot for
a specific purpose -- virt-p2v -- where the size of the ISO
rarely exceeded around 100-200 MB, which is large for an initramfs,
but about an order of magnitude smaller than what you are trying.

Rich.

--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
virt-top is 'top' for virtual machines. Tiny program with many
powerful monitoring features, net stats, disk stats, logging, etc.
http://people.redhat.com/~rjones/virt-top