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2013-06-11 09:27:34 -04:00
scripts Make generate-git-snapshot.sh work for merge window trees 2012-07-31 16:18:04 -04:00
.gitignore Ignore all .xz and .bz2 files 2011-11-23 08:58:58 -05:00
0001-kmsg-Honor-dmesg_restrict-sysctl-on-dev-kmsg.patch Fix dmesg_restrict patch to avoid regression (rhbz 952655) 2013-05-07 12:34:53 -04:00
acpi-sony-nonvs-blacklist.patch Add another Sony laptop to the nonvs blacklist. (rhbz 641789) 2011-11-01 12:57:12 -04:00
acpi-video-dos.patch Rename a bunch of patches. 2013-01-10 14:24:41 -05:00
arm-export-read_current_timer.patch The initial ARM unified kernel support (vexpress, highbank, mvebu to begin). WOO HOO 2012-10-26 15:38:35 +01:00
arm-lpae-ax88796.patch Linux v3.9-rc8 2013-04-22 12:26:16 -05:00
arm-omap-load-tfp410.patch Add patch to fix DRM/X on omap (panda), Enable Cortex-A8 errata on multiplatform kernels (omap3), Minor ARM config updates 2013-06-02 19:05:45 +01:00
arm-tegra-usb-no-reset-linux33.patch Patch for disconnect issues with storage attached to a tegra-ehci controller 2012-05-03 20:27:11 +01:00
ath9k_rx_dma_stop_check.patch Add patch to fix ath9k dma stop checks (rhbz 892811) 2013-02-06 10:00:23 -05:00
b43-stop-format-string-leaking-into-error-msgs.patch CVE-2013-2852 b43: format string leaking into error msgs (rhbz 969518 971665) 2013-06-07 08:18:07 -04:00
block-do-not-pass-disk-names-as-format-strings.patch CVE-2013-2851 block: passing disk names as format strings (rhbz 969515 971662) 2013-06-07 08:23:33 -04:00
cdrom-use-kzalloc-for-failing-hardware.patch CVE-2013-2164 information leak in cdrom driver (rhbz 973100 973109) 2013-06-11 08:09:57 -04:00
compile-fixes.patch Rename a bunch of patches. 2013-01-10 14:24:41 -05:00
config-armv7 Enable Freescale i.MX platforms and initial config 2013-06-10 09:00:32 +01:00
config-armv7-generic Minor ARM config changes 2013-06-03 22:33:50 +01:00
config-armv7-lpae Add patch to fix DRM/X on omap (panda), Enable Cortex-A8 errata on multiplatform kernels (omap3), Minor ARM config updates 2013-06-02 19:05:45 +01:00
config-debug Enable RTLWIFI_DEBUG in debug kernels (rhbz 889425) 2013-05-10 11:07:54 -04:00
config-generic Linux v3.10-rc3 2013-05-27 10:15:24 -04:00
config-i686-PAE Re-enable I2O, but only for 32-bit x86 (#629676) 2010-09-03 05:24:38 -04:00
config-local Add support for local rebuild config option overrides 2011-01-10 17:37:27 -05:00
config-nodebug Linux v3.10-rc3 2013-05-27 10:15:24 -04:00
config-powerpc32-generic Disable MV643XX on ppc32 because ARM broke it (rhbz 828776) 2012-06-06 15:26:21 -04:00
config-powerpc32-smp initial srpm import 2010-07-29 16:46:31 -07:00
config-powerpc64 Linux v3.9-10518-gd7ab730 2013-05-06 08:25:04 -04:00
config-powerpc64p7 Linux v3.9-10518-gd7ab730 2013-05-06 08:25:04 -04:00
config-powerpc-generic Linux v3.9-8153-g5a148af 2013-05-02 15:42:10 -04:00
config-s390x s390x config option changes from Dan Horák <dan@danny.cz> - kernel-3.9.0-0.rc3.git0.3 2013-03-18 17:26:50 -04:00
config-x86_64-generic Linux v3.9-8933-gce85722 2013-05-03 13:32:30 -04:00
config-x86-32-generic Turn off CONFIG_X86_32_NON_STANDARD. 2013-05-10 13:20:44 -04:00
config-x86-generic Linux v3.10-rc5 2013-06-11 08:48:43 -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
crash-driver.patch Rename a bunch of patches. 2013-01-10 14:24:41 -05:00
criu-no-expert.patch Linux v3.8-rc5-218-ga56e160 2013-01-30 10:56:40 -05:00
cve-2013-2147-ciss-info-leak.patch CVE-2013-2147 cpqarray/cciss: information leak via ioctl (rhbz 971242 971249) 2013-06-06 08:20:47 -04:00
debug-bad-pte-dmi.patch add some sign-offs for upstream 2013-04-16 14:38:04 -04:00
debug-bad-pte-modules.patch Linux v3.9-4516-gc9ef713 2013-04-30 14:08:17 -04:00
defaults-acpi-video.patch Rename a bunch of patches. 2013-01-10 14:24:41 -05:00
devel-pekey-secure-boot-20130502.patch Linux v3.9-7391-g20b4fb4 2013-05-02 08:19:10 -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
drm-edid-try-harder-to-fix-up-broken-headers.patch drm: try harder to fix bad edids 2011-12-16 11:19:59 -05:00
drm-exynos-fix-multiple-definition-build-error.patch Add patch to fix exynosdrm build, drop old tegra patches, minor config updates 2013-05-10 21:12:40 +01:00
drm-i915-dp-stfu.patch Linux v3.9-8933-gce85722 2013-05-03 13:32:30 -04:00
drm-intel-next.patch initial srpm import 2010-07-29 16:46:31 -07:00
drm-vgem.patch Add patch and config change for vgem.ko 2012-02-15 18:55:24 -05:00
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
fanotify-info-leak-in-copy_event_to_user.patch CVE-2013-2148 fanotify: info leak in copy_event_to_user (rhbz 971258 971261) 2013-06-06 08:24:31 -04:00
fix-child-thread-introspection.patch Fix child thread introspection of of /proc/self/exe (rhbz 927469) 2013-03-26 15:11:30 -05:00
fs-proc-devtree-remove_proc_entry.patch Remove /proc/device-tree when openfirmware init fails. (rhbz 818378) 2012-05-07 12:03:03 -04:00
hibernate-freeze-filesystems.patch Freeze all filesystems during system suspend/hibernate. 2012-02-17 13:42:40 -05:00
input-kill-stupid-messages.patch Rename a bunch of patches. 2013-01-10 14:24:41 -05:00
intel_iommu-Downgrade-the-warning-if-enabling-irq-remapping-fails.patch Add patch to quiet irq remapping failures (rhbz 948262) 2013-05-24 13:00:26 -04:00
kernel.spec Add two patches to fix issues with vhost_net and macvlan (rhbz 954181) 2013-06-11 09:27:34 -04:00
lis3-improve-handling-of-null-rate.patch Linux v3.6-6670-gecefbd9 2012-10-05 10:45:58 -05:00
Makefile Enable CONFIG_NFSD_FAULT_INJECTION on debug builds (suggested by Jeff Layton) 2012-05-11 13:19:12 -04:00
makefile-after_link.patch Rename a bunch of patches. 2013-01-10 14:24:41 -05:00
Makefile.config kernel-$VERSION == $CFG 2013-06-10 12:35:14 -04:00
Makefile.release Enable RTLWIFI_DEBUG in debug kernels (rhbz 889425) 2013-05-10 11:07:54 -04:00
merge.pl initial srpm import 2010-07-29 16:46:31 -07:00
mod-extra.list Enable Orinoco drivers in kernel-modules-extra (rhbz 894069) 2013-01-14 15:28:59 -05:00
mod-extra.sh Prep mod-extra.sh for signed modules 2012-09-25 13:22:00 -04:00
mod-sign.sh simplify the signing stuff now that sign-file takes pub/priv key args 2013-03-28 16:33:21 -04:00
Modify-UEFI-anti-bricking-code.patch 3.10-rc4 2013-06-04 17:14:21 -04:00
no-pcspkr-modalias.patch Rename a bunch of patches. 2013-01-10 14:24:41 -05:00
PatchList.txt Rebase to Linux 3.3-rc1 2012-01-20 13:32:57 -05:00
README.txt document inheritance/heirarchy of config generation 2012-01-13 15:42:52 -05:00
rebase-notes.txt rebase-notes: no X32 2012-03-19 20:54:31 -04:00
scsi-sd_revalidate_disk-prevent-NULL-ptr-deref.patch Modify sd_revalidate_disk patch to do a WARN_ONCE instead of silently skip 2012-02-14 11:06:37 -05:00
secure-boot-20130218.patch Linux v3.8 2013-02-18 19:54:32 -05:00
selinux-apply-different-permission-to-ptrace-child.patch - SELinux apply a different permission to ptrace a child vs non-child 2012-04-09 16:40:04 -05:00
serial-460800.patch Linux v3.9-rc5 2013-04-01 11:15:57 -05:00
silence-acpi-blacklist.patch Rename a bunch of patches. 2013-01-10 14:24:41 -05:00
silence-fbcon-logo.patch Rename a bunch of patches. 2013-01-10 14:24:41 -05:00
silence-noise.patch Rename a bunch of patches. 2013-01-10 14:24:41 -05:00
sources Linux v3.10-rc5 2013-06-11 08:48:43 -04:00
taint-vbox.patch Linux v3.8-8664-gc41b381 2013-02-26 12:05:00 -05:00
TODO 3.5 reminder 2012-04-30 12:20:09 -04:00
tuntap-set-SOCK_ZEROCOPY-flag-during-open.patch Add two patches to fix issues with vhost_net and macvlan (rhbz 954181) 2013-06-11 09:27:34 -04:00
upstream-reverts.patch Rename a bunch of patches. 2013-01-10 14:24:41 -05:00
v2-thermal-cpu_cooling-fix-stub-function.patch Another patch to fix ARM kernel build 2013-05-11 23:48:13 +01:00
v4l-dvb-experimental.patch Rename a bunch of patches. 2013-01-10 14:24:41 -05:00
v4l-dvb-fixes.patch Rename a bunch of patches. 2013-01-10 14:24:41 -05:00
v4l-dvb-update.patch Rename a bunch of patches. 2013-01-10 14:24:41 -05:00
vhost_net-clear-msg.control-for-non-zerocopy-case-during-tx.patch Add two patches to fix issues with vhost_net and macvlan (rhbz 954181) 2013-06-11 09:27:34 -04:00
vmbugon-warnon.patch Change VM_BUG_ON's to be WARN_ONs instead. 2012-07-31 09:48:32 -04:00
vt-Drop-K_OFF-for-VC_MUTE.patch Add VC_MUTE ioctl (rhbz 859485) 2012-11-20 08:38:25 -05:00
weird-root-dentry-name-debug.patch Add debug patch for bugs 787171/766277 2012-03-07 17:12:06 -05:00
x509.genkey Switch to using modsign-post-KS upstream with x509 certs 2012-09-25 13:22:04 -04:00
xen-blkback-Check-device-permissions-before-allowing.patch CVE-2013-2140 xen: blkback: insufficient permission checks for BLKIF_OP_DISCARD (rhbz 971146 971148) 2013-06-05 16:14:31 -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.

The heirarchy looks like this..

                           config-generic
                                 |
                         config-x86-generic
                         |                |
             config-x86-32-generic   config-x86-64-generic

An option set in a lower level will override the same option set in one
of the higher levels.


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.