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Josh Boyer 90792faae2 Set CONFIG_MAX_ZONEORDER to 9 on ppc64 with 64K pages
The previous setting of 13 caused build errors:

	In file included from include/linux/topology.h:32:0,
                 from include/linux/sched.h:78,
                 from arch/powerpc/kernel/asm-offsets.c:17:
	include/linux/mmzone.h:961:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE
	make[1]: *** [arch/powerpc/kernel/asm-offsets.s] Error 1
2011-09-15 14:03:14 -04:00
scripts Fix up scripts/sort-config so it works again. 2011-09-07 19:40:53 -04:00
.gitignore Cleanup - make crypto manager options match reality 2011-06-29 11:09:56 -04:00
acpi-ensure-thermal-limits-match-cpu-freq.patch Fixup acpi patch to select CPU_FREQ_TABLE so we don't get an undefined link 2011-08-30 10:23:12 -04:00
add-appleir-usb-driver.patch 3.0-git9 snapshot 2011-07-27 21:07:17 -04:00
add-macbookair41-btusb.patch Add patches Bastien pointed out for MacBookAir 4,1 support 2011-09-14 09:23:29 -04:00
add-macbookair41-keyboard.patch Add patches Bastien pointed out for MacBookAir 4,1 support 2011-09-14 09:23:29 -04:00
add-macbookair41-trackpad.patch Add patches Bastien pointed out for MacBookAir 4,1 support 2011-09-14 09:23:29 -04:00
arm-omap-dt-compat.patch update arm configs for 3.1 2011-08-16 12:56:09 -05:00
arm-smsc-support-reading-mac-address-from-device-tree.patch setup config for tegra based arm boards, add device tree 2011-08-16 11:33:15 -05:00
block-stray-block-put-after-teardown.patch Add a few patches that were in f16 but not in rawhide 2011-08-16 10:31:40 -04:00
config-arm-generic disable crystalhd module on the generic arm qemu build 2011-08-16 11:41:15 -05:00
config-arm-omap-generic fix up some config warnings 2011-08-27 17:57:25 -04:00
config-arm-tegra update arm configs for 3.1 2011-08-16 12:56:09 -05:00
config-debug Drop/replace obsolete debug options, remove stray backslashes 2011-09-08 13:14:26 -04:00
config-generic Enable CONFIG_IP_VS_IPV6 support 2011-09-14 11:55:37 -04:00
config-i686-PAE Re-enable I2O, but only for 32-bit x86 (#629676) 2010-09-03 05:24:38 -04:00
config-ia64-generic 3.1-rc2-git4 snapshot 2011-08-17 22:57:30 -04:00
config-local Add support for local rebuild config option overrides 2011-01-10 17:37:27 -05:00
config-nodebug Drop/replace obsolete debug options, remove stray backslashes 2011-09-08 13:14:26 -04:00
config-powerpc32-generic first pass of new config options in 3.0-rc1 2011-05-30 10:25:28 -04:00
config-powerpc32-smp initial srpm import 2010-07-29 16:46:31 -07:00
config-powerpc64 Set CONFIG_MAX_ZONEORDER to 9 on ppc64 with 64K pages 2011-09-15 14:03:14 -04:00
config-powerpc-generic fix up some config warnings 2011-08-27 17:57:25 -04:00
config-rhel-generic disable parallel port IDE. 2010-09-27 14:03:13 -04:00
config-s390x 3.0-git9 snapshot 2011-07-27 21:07:17 -04:00
config-sparc64-generic 3.0-git9 snapshot 2011-07-27 21:07:17 -04:00
config-x86_64-generic Split out the 32bit only options from x86-32 2011-08-09 19:32:10 -04:00
config-x86-32-generic fix up some config warnings 2011-08-27 17:57:25 -04:00
config-x86-generic Drop obsolete config options 2011-09-08 11:44:04 -04:00
cpupower.config Create the kernel-tools package. WHEE 2011-08-17 21:19:57 -04:00
cpupower.service Create the kernel-tools package. WHEE 2011-08-17 21:19:57 -04:00
crypto-register-cryptd-first.patch 3.1-rc2-git5 snapshot 2011-08-19 08:32:04 -04:00
die-floppy-die.patch initial srpm import 2010-07-29 16:46:31 -07:00
disable-i8042-check-on-apple-mac.patch initial srpm import 2010-07-29 16:46:31 -07:00
dmar-disable-when-ricoh-multifunction.patch 3.0-git3 snapshot 2011-07-25 09:46:01 -04:00
drm-intel-make-lvds-work.patch rebase and nuke patches 2011-05-30 07:23:14 -04:00
drm-intel-next.patch initial srpm import 2010-07-29 16:46:31 -07:00
drm-nouveau-updates.patch update to 2.6.38-git6 2011-03-18 13:15:43 -04:00
efi-dont-map-boot-services-on-32bit.patch Add a few patches that were in f16 but not in rawhide 2011-08-16 10:31:40 -04:00
epoll-fix-spurious-lockdep-warnings.patch 3.0-git19 snapshot 2011-08-04 11:12:43 -04:00
find-provides initial srpm import 2010-07-29 16:46:31 -07:00
fix_xen_guest_on_old_EC2.patch initial srpm import 2010-07-29 16:46:31 -07:00
genkey initial srpm import 2010-07-29 16:46:31 -07:00
git-linus.diff initial srpm import 2010-07-29 16:46:31 -07:00
hvcs_pi_buf_alloc.patch Add patch to fix POWER virtual serial driver (rhbz 738096) 2011-09-14 09:44:57 -04:00
ibmveth-Checksum-offload-is-always-disabled.patch Add patches to fix various ibmveth driver issues (rhbz 733766) 2011-09-14 14:30:04 -04:00
ibmveth-Fix-DMA-unmap-error.patch Add patches to fix various ibmveth driver issues (rhbz 733766) 2011-09-14 14:30:04 -04:00
ibmveth-Fix-issue-with-DMA-mapping-failure.patch Add patches to fix various ibmveth driver issues (rhbz 733766) 2011-09-14 14:30:04 -04:00
iwlagn-revert-max-aggregate-size.patch Revert 'iwlwifi: advertise max aggregate size'. (rhbz 708747) 2011-08-24 08:42:15 -04:00
kernel.spec Add patch to fix deadlock in ppc64 icswx code (rhbz 737984) 2011-09-14 16:12:36 -04:00
linux-2.6-32bit-mmap-exec-randomization.patch Bring back the 32bit mmap randomization patch for now. 2011-08-27 14:00:14 -04:00
linux-2.6-acpi-debug-infinite-loop.patch update to snapshot 2.6.38-git19 2011-03-28 17:22:32 -04:00
linux-2.6-acpi-video-dos.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-compile-fixes.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-crash-driver.patch 3.0-git19 snapshot 2011-08-04 11:12:43 -04:00
linux-2.6-debug-taint-vm.patch rediff, remove unnecessary export, and add modules printing to bad_page() 2011-07-21 21:01:32 -04:00
linux-2.6-defaults-acpi-video.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-defaults-aspm.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-e1000-ich9-montevina.patch build fix, again. I suck. 2010-09-29 18:51:28 -04:00
linux-2.6-i386-nx-emulation.patch Bring back the 32bit mmap randomization patch for now. 2011-08-27 14:00:14 -04:00
linux-2.6-input-kill-stupid-messages.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-intel-iommu-igfx.patch 3.0-git3 snapshot 2011-07-25 09:46:01 -04:00
linux-2.6-makefile-after_link.patch Add s390 vdso AFTER_LINK to Roland's linux-2.6-makefile-after_link.patch 2010-09-23 12:15:30 -04:00
linux-2.6-serial-460800.patch update to 2.6.38-rc2 2011-01-22 13:34:11 -05:00
linux-2.6-silence-acpi-blacklist.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-silence-fbcon-logo.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-silence-noise.patch 3.0-git3 snapshot 2011-07-25 09:46:01 -04:00
linux-2.6-upstream-reverts.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-v4l-dvb-experimental.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-v4l-dvb-fixes.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-v4l-dvb-update.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6-v4l-dvb-uvcvideo-update.patch initial srpm import 2010-07-29 16:46:31 -07:00
linux-2.6.30-no-pcspkr-modalias.patch Linux-3.1-rc1 2011-08-08 10:17:46 -04:00
Makefile Drop/replace obsolete debug options, remove stray backslashes 2011-09-08 13:14:26 -04:00
Makefile.config tweak the arm configs a little 2011-08-16 11:34:23 -05:00
merge.pl initial srpm import 2010-07-29 16:46:31 -07:00
powerpc-Fix-deadlock-in-icswx-code.patch Add patch to fix deadlock in ppc64 icswx code (rhbz 737984) 2011-09-14 16:12:36 -04:00
rcu-avoid-just-onlined-cpu-resched.patch Linux-3.1-rc2 2011-08-15 10:06:52 -04:00
rcutree-avoid-false-quiescent-states.patch Avoid false quiescent states in rcutree with CONFIG_RCU_FAST_NO_HZ. (rhbz 577968) 2011-09-12 07:31:24 -04:00
README.txt Test commit to verify working email notifications to kernel team 2010-08-17 10:29:52 -05:00
revert-efi-rtclock.patch Revert "x86: Serialize EFI time accesses on rtc_lock" (rhbz 732755) 2011-08-30 11:49:37 -04:00
sources 3.1-rc6 2011-09-12 18:21:08 -04:00
TODO Drop linux-2.6-debug-vm-would-have-oomkilled.patch 2011-08-26 14:27:21 -04:00
ucvideo-fix-crash-when-linking-entities.patch Fix for rhbz 735437 2011-09-07 12:31:24 -04:00
udlfb-bind-framebuffer-to-interface.patch 3.0-git11 snapshot 2011-07-29 10:12:47 -04:00
ums-realtek-driver-uses-stack-memory-for-DMA.patch 3.0-git17 snapshot 2011-08-02 12:49:07 -04:00
usb-add-quirk-for-logitech-webcams.patch Add a few patches that were in f16 but not in rawhide 2011-08-16 10:31:40 -04:00
utrace.patch utrace: s390: fix the compile problem with traps.c (rhbz 735118) 2011-09-02 11:33:26 -04:00

		Kernel package tips & tricks.
		~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The kernel is one of the more complicated packages in the distro, and
for the newcomer, some of the voodoo in the spec file can be somewhat scary.
This file attempts to document some of the magic.


Speeding up make prep
---------------------
The kernel is nearly 500MB of source code, and as such, 'make prep'
takes a while. The spec file employs some trickery so that repeated
invocations of make prep don't take as long.  Ordinarily the %prep
phase of a package will delete the tree it is about to untar/patch.
The kernel %prep keeps around an unpatched version of the tree,
and makes a symlink tree clone of that clean tree and than applies
the patches listed in the spec to the symlink tree.
This makes a huge difference if you're doing multiple make preps a day.
As an added bonus, doing a diff between the clean tree and the symlink
tree is slightly faster than it would be doing two proper copies of the tree.


build logs.
-----------
There's a convenience helper script in scripts/grab-logs.sh
that will grab the build logs from koji for the kernel version reported
by make verrel


config heirarchy.
-----------------
Instead of having to maintain a config file for every arch variant we build on,
the kernel spec uses a nested system of configs.  At the top level, is
config-generic. Add options here that should be present in every possible
config on all architectures.
Beneath this are per-arch overrides. For example config-x86-generic add
additional x86 specific options, and also _override_ any options that were
set in config-generic.
There exist two additional overrides, config-debug, and config-nodebug,
which override -generic, and the per-arch overrides. It is documented
further below.

debug options.
--------------
This is a little complicated, as the purpose & meaning of this changes
depending on where we are in the release cycle.
If we are building for a current stable release, 'make release' has
typically been run already, which sets up the following..
- Two builds occur, a 'kernel' and a 'kernel-debug' flavor.
- kernel-debug will get various heavyweight debugging options like
  lockdep etc turned on.

If we are building for rawhide, 'make debug' has been run, which changes
the status quo to:
- We only build one kernel 'kernel'
- The debug options from 'config-debug' are always turned on.
This is done to increase coverage testing, as not many people actually
run kernel-debug.

To add new debug options, add an option to _both_ config-debug and config-nodebug,
and also new stanzas to the Makefile 'debug' and 'release' targets.

Sometimes debug options get added to config-generic, or per-arch overrides
instead of config-[no]debug. In this instance, the options should have no
discernable performance impact, otherwise they belong in the debug files.