Re: [Xen-users] problem building a PAE system

[AndreGround <andreground@xxxxxxxxx>]

Hi!
with this .spec file, I get a brand new kernel from source with PAE
disabled but I always get "PAE mode mismatch between Xen and DOM0
(xen=no, dom0=yes) when I try to start it!

Where's the mistake?

Thanks in advance!

.spec file:

Summary: The Linux kernel (the core of the Linux operating system)

# What parts do we want to build?  We must build at least one kernel.
# These are the kernels that are built IF the architecture allows it.

%define buildup 1
# Only used on archs without run-time support (ie ppc, sparc64)
%define buildsmp 0
%define buildpae 0
# Whether to apply the Xen patches, leave this enabled.
%define includexen 1
# Whether to build the Xen kernels, disable if you want.
%define buildxen 1
%define builddoc 0
%define buildkdump 1
%define buildheaders 1
%define builddebug 0

# Versions of various parts

# After branching, please hardcode these values as the
# %dist and %rhel tags are not reliable yet
# For example dist -> .el5 and rhel -> 5
#% define dist .XX
#% define rhel Y

#
# Polite request for people who spin their own kernel rpms:
# please modify the "release" field in a way that identifies
# that the kernel isn't the stock distribution kernel, for example by
# adding some text to the end of the version number.
#
%define sublevel 19
%define kversion 2.6.%{sublevel}
%define rpmversion 2.6.%{sublevel}
%define release %(R="$Revision: 1.2895dru $"; RR="${R##: }"; echo
${RR%%?})%{?dist}
%define signmodules 0
%define xen_hv_cset 11774
%define make_target bzImage
%define kernel_image x86
%define xen_flags verbose=y crash_debug=y
%define xen_target vmlinuz
%define xen_image vmlinuz

%define KVERREL %{PACKAGE_VERSION}-%{PACKAGE_RELEASE}
%define hdrarch %_target_cpu

# groups of related archs
#OLPC stuff
%if 0%{?olpc}
%define buildxen 0
%define buildkdump 0
%endif
# Don't build 586 kernels for RHEL builds.
%if 0%{?rhel}
%define all_x86 i386 i686
# we differ here b/c of the reloc patches
%ifarch i686 x86_64
%define buildkdump 0
%endif
%else
%define all_x86 i386 i586 i686
%endif

# Override generic defaults with per-arch defaults

%ifarch noarch
%define builddoc 1
%define buildup 0
%define buildheaders 0
%define all_arch_configs $RPM_SOURCE_DIR/kernel-%{kversion}-*.config
%endif

# Do debug builds on i686, x86_64
%ifarch i686 x86_64
%define builddebug 1
%endif

# kdump only builds on i686, x86_64, ppc64 ...
%ifnarch i686 x86_64 ppc64 ppc64iseries
%define buildkdump 0
%endif

# Xen only builds on i686, x86_64 and ia64 ...
%ifnarch i686 x86_64 ia64
%define buildxen 0
%endif

# Second, per-architecture exclusions (ifarch)

%ifarch ppc64iseries i686 i586
%define buildheaders 0
%endif

%ifarch %{all_x86}
%define all_arch_configs $RPM_SOURCE_DIR/kernel-%{kversion}-i?86*.config
%define image_install_path boot
%define signmodules 0
%define hdrarch i386
%endif

%ifarch i686
%define buildpae 0
# we build always xen HV with pae
%define xen_flags verbose=y crash_debug=y pae=n
%endif

%ifarch x86_64
%define all_arch_configs $RPM_SOURCE_DIR/kernel-%{kversion}-x86_64*.config
%define image_install_path boot
%define signmodules 0
%endif

%ifarch ppc64 ppc64iseries
%define all_arch_configs $RPM_SOURCE_DIR/kernel-%{kversion}-ppc64*.config
%define image_install_path boot
%define signmodules 0
%define make_target vmlinux
%define kernel_image vmlinux
%define kernel_image_elf 1
%define hdrarch powerpc
%endif

%ifarch s390
%define all_arch_configs $RPM_SOURCE_DIR/kernel-%{kversion}-s390*.config
%define image_install_path boot
%define make_target image
%define kernel_image arch/s390/boot/image
%endif

%ifarch s390x
%define all_arch_configs $RPM_SOURCE_DIR/kernel-%{kversion}-s390x.config
%define image_install_path boot
%define make_target image
%define kernel_image arch/s390/boot/image
%define hdrarch s390
%endif

%ifarch sparc
%define all_arch_configs $RPM_SOURCE_DIR/kernel-%{kversion}-sparc.config
%define make_target image
%define kernel_image image
%endif

%ifarch sparc64
%define buildsmp 1
%define all_arch_configs $RPM_SOURCE_DIR/kernel-%{kversion}-sparc64*.config
%define make_target image
%define kernel_image image
%endif

%ifarch ppc
%define all_arch_configs $RPM_SOURCE_DIR/kernel-%{kversion}-ppc{-,.}*config
%define image_install_path boot
%define make_target vmlinux
%define kernel_image vmlinux
%define kernel_image_elf 1
%define buildsmp 1
%define hdrarch powerpc
%endif

%ifarch ia64
%define all_arch_configs $RPM_SOURCE_DIR/kernel-%{kversion}-ia64*.config
%define image_install_path boot/efi/EFI/redhat
%define signmodules 0
%define make_target compressed
%define kernel_image vmlinux.gz
# ia64 xen HV doesn't building with debug=y at the moment
%define xen_flags verbose=y crash_debug=y
%define xen_target compressed
%define xen_image vmlinux.gz
%endif

# To temporarily exclude an architecture from being built, add it to
# %nobuildarches. Do _NOT_ use the ExclusiveArch: line, because if we
# don't build kernel-headers then the new build system will no longer let
# us use the previous build of that package -- it'll just be completely AWOL.
# Which is a BadThing(tm).

# We don't build a kernel on i386 or s390x -- we only do kernel-headers there.
# We also don't support s390, iseries and ia64 on Fedora.
%define nobuildarches i386 s390 s390x ppc64iseries ia64

%ifarch %nobuildarches
%define buildup 0
%define buildsmp 0
%define buildpae 0
%define buildxen 0
%define buildkdump 0
%define _enable_debug_packages 0
%endif


#
# Three sets of minimum package version requirements in the form of Conflicts:
# to versions below the minimum
#

#
# First the general kernel 2.6 required versions as per
# Documentation/Changes
#
%define kernel_dot_org_conflicts  ppp < 2.4.3-3, isdn4k-utils <
3.2-32, nfs-utils < 1.0.7-12, e2fsprogs < 1.37-4, util-linux < 2.12,
jfsutils < 1.1.7-2, reiserfs-utils < 3.6.19-2, xfsprogs < 2.6.13-4,
procps < 3.2.5-6.3, oprofile
< 0.9.1-2

#
# Then a series of requirements that are distribution specific, either
# because we add patches for something, or the older versions have
# problems with the newer kernel or lack certain things that make
# integration in the distro harder than needed.
#
%define package_conflicts initscripts < 7.23, udev < 063-6, iptables <
1.3.2-1, ipw2200-firmware < 2.4, selinux-policy-targeted < 1.25.3-14

#
# The ld.so.conf.d file we install uses syntax older ldconfig's don't grok.
#
%define xen_conflicts glibc < 2.3.5-1, xen < 3.0.1

[...]

On 1/19/07, Daniel P. Berrange <berrange@xxxxxxxxxx> wrote:
> On Fri, Jan 19, 2007 at 07:39:52PM +0100, AndreGround wrote:
> > Perfect. Thanks everybody.
> > I'll try to modify the spec in the SRPM of the kernel.
> >
> > So (taken from the same set):
> > - Modified Kernel with PAE disabled (obtained by rebuilding the Fedora's
> > SRPM)
> > - Original hypervisor RPM (the one provided by Fedora, not modified)
>
> In Fedora packaging, the kernel-xen RPM also contains the hypervisor.
> So you just need to re-build the single RPM - make sure you turn off
> PAE for the kernel & hv bits of the build process though.
>
> Dan.
> --
> |=- Red Hat, Engineering, Emerging Technologies, Boston.  +1 978 392 2496 -=|
> |=-           Perl modules: http://search.cpan.org/~danberr/              -=|
> |=-               Projects: http://freshmeat.net/~danielpb/               -=|
> |=-  GnuPG: 7D3B9505   F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505  -=|
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