Re: [PATCH v7 0/5] kdump: Allow ELF header creation in new kernel

Martin Schwidefsky
2013-07-18T10:48:29Z

On Thu, 18 Jul 2013 12:40:04 +0200
Michael Holzheu <holzheu@linux.vnet.ibm.com> wrote:

> On Wed, 17 Jul 2013 17:42:07 -0400
> Vivek Goyal <vgoyal@redhat.com> wrote:
> > On Wed, Jul 17, 2013 at 06:00:49PM +0200, Michael Holzheu wrote:
>
> [snip]
>
> > > But this is all additional effort now and would not be necessary if we
> > > integrate this patch series in 3.11.
> > >
> > > Perhaps we should let Andrew decide here.
> >
> > Hi Michael,
> >
> > Given the fact that andrew too prefers a fix to get s390 working at this
> > stage can we modify s390 copy_from_oldmem() to be able to copy to
> > vmalloc() memory area.
> >
> > For mmap(), let us disable it on s390. And rest of the cleanups w.r.t
> > ELF header swap etc, let us now target that for 3.12.
> >
> > Sounds reasonable?
>
> Hi Vivek,
>
> Ok this is not our preferred solution but we can't expect that life is
> always easy ;-)
>
> Our s390 kernel maintainer Martin Schwidefsky agreed to send the following
> two patches upstream for 3.11:
>
> * s390/kdump: Disable mmap for s390
> * s390/kdump: Allow copy_oldmem_page() copy to virtual memory

Patches have been added to
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git features

They will go upstream with my next pull request.

--
blue skies,
Martin.

"Reality continues to ruin my life." - Calvin.