> -----Original Message----- > From: Xen-devel [mailto:xen-devel-boun...@lists.xen.org] On Behalf Of > Paul Durrant > Sent: 07 June 2017 09:10 > To: 'Jan Beulich' <jbeul...@suse.com>; Boris Ostrovsky > <boris.ostrov...@oracle.com> > Cc: xen-devel (xen-de...@lists.xenproject.org) <xen- > de...@lists.xenproject.org> > Subject: Re: [Xen-devel] debian stretch dom0 + xen 4.9 fails to boot > > > -----Original Message----- > > From: Jan Beulich [mailto:jbeul...@suse.com] > > Sent: 07 June 2017 09:07 > > To: Boris Ostrovsky <boris.ostrov...@oracle.com> > > Cc: Paul Durrant <paul.durr...@citrix.com>; xen-devel (xen- > > de...@lists.xenproject.org) <xen-de...@lists.xenproject.org> > > Subject: Re: [Xen-devel] debian stretch dom0 + xen 4.9 fails to boot > > > > >>> On 06.06.17 at 19:00, <boris.ostrov...@oracle.com> wrote: > > > FWIW, one of machines in our test farm choked on this very patch. I > > > don't remember details now but essentially it turned out that syslinux > > > (we are pxe-booting) could not handle changes in ELF sections layout > > > (the way syslinux calculated how to load the binary into memory resulted > > > in overlap of some sort). > > > > There has always been an overlap between the main and the notes > > segment; there being only two segments I don't see any other > > potential for an overlap. In fact I can't see anything other than size > > differences between a 4.8.1 and a 4.9 binary, plus of course the > > base address change resulting from Daniel's EFI/GrUB2 patches. So > > I'm rather puzzled as to what effect Jürgen's patch could have had > > on the behavior of any loader whatsoever. > > > > The only possibly misleading section I notice is .reloc, but that's > > present in xen-syms only, not in xen.gz. And again it's a result of > > Daniel's series, not Jürgen's patch. > > > > I guess I could apply the patch in isolation against 4.8 and see if it causes > a > problem. I'll give that a quick try. >
Applying the patch to 4.8.1 *does* cause the problem, so it's definitely something in the patch rather than an interaction with other patches in 4.9. Paul > Paul > > > Jan > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > https://lists.xen.org/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
