Re: [ANNOUNCE] RT for v2.6.34.8 now available.

Nathan Grennan
2011-03-05T03:16:15Z

On 03/04/2011 02:24 PM, Paul Gortmaker wrote:
> As a value add to the 2.6.34 long term release, I'm happy to also
> announce the availability of 2.6.34-RT.
>
> You can find it in the v2.6.34-rt branch at:
>
> git://git.kernel.org/pub/scm/linux/kernel/git/paulg/rt-patches.git
>
> as a repository of patches. The v2.6.34-rt branch contains the latest
> RT patches against the latest v2.6.34.8 kernel release. (The master
> branch currently stops at v2.6.34 flat, i.e. 2.6.34.0 so to speak.)
>
> I've also created over 400 known working RT enabled bisection points
> between 33 and 34 that you can make use of for testing. The details
> on how/why those exist follows - read on if it is of interest to you.
>
> Note that all credit of the thinking and engineering of the RT stuff
> lies with the original patch authors -- to be clear, I'm just doing
> the grunt work of a carry forward here.
>
> Have fun with it, maybe drop me a note if you find it useful etc.

I tried compiling this, and it quickly failed. Ideas?

I did this on a Fedora 14 x86_64 system with gcc-4.5.1-4.fc14.x86_64.

Here is what I did:

1. Downloaded 2.6.34.8 tarball and extracted it
2. git clone -b v2.6.34-rt
git://git.kernel.org/pub/scm/linux/kernel/git/paulg/rt-patches.git
3. cat ../rt-patches/series | xargs -i cat ../rt-patches/{} | patch -p1
(Applied just fine)
4. Copied an 2.6.31-rt configuration to .config
5. Ran make oldconfig
6. make bzImage

CHK include/linux/version.h
CHK include/generated/utsrelease.h
HOSTCC scripts/basic/fixdep
HOSTCC scripts/basic/docproc
HOSTCC scripts/basic/hash
CC kernel/bounds.s
GEN include/generated/bounds.h
CC arch/x86/kernel/asm-offsets.s
GEN include/generated/asm-offsets.h
CALL scripts/checksyscalls.sh
HOSTCC scripts/genksyms/genksyms.o
HOSTCC scripts/genksyms/lex.o
HOSTCC scripts/genksyms/parse.o
HOSTLD scripts/genksyms/genksyms
CC scripts/mod/empty.o
HOSTCC scripts/mod/mk_elfconfig
MKELF scripts/mod/elfconfig.h
HOSTCC scripts/mod/file2alias.o
HOSTCC scripts/mod/modpost.o
HOSTCC scripts/mod/sumversion.o
HOSTLD scripts/mod/modpost
HOSTCC scripts/selinux/genheaders/genheaders
HOSTCC scripts/selinux/mdp/mdp
HOSTCC scripts/kallsyms
HOSTCC scripts/conmakehash
CC init/main.o
init/main.c: In function ‘do_one_initcall’:
init/main.c:740:10: warning: ‘calltime.tv64’ may be used uninitialized
in this function
CHK include/generated/compile.h
CC init/version.o
CC init/do_mounts.o
In file included from include/linux/suspend.h:8:0,
from init/do_mounts.c:6:
include/linux/mm.h: In function ‘pte_lock_init’:
include/linux/mm.h:1125:2: error: implicit declaration of function ‘kmalloc’
include/linux/mm.h:1125:12: warning: assignment makes pointer from
integer without a cast
include/linux/mm.h: In function ‘pte_lock_deinit’:
include/linux/mm.h:1137:2: error: implicit declaration of function ‘kfree’
In file included from include/linux/security.h:36:0,
from init/do_mounts.c:8:
include/linux/slab.h: At top level:
include/linux/slab.h:144:6: warning: conflicting types for ‘kfree’
include/linux/mm.h:1137:2: note: previous implicit declaration of
‘kfree’ was here
In file included from include/linux/slab.h:172:0,
from include/linux/security.h:36,
from init/do_mounts.c:8:
include/linux/slab_def.h:128:52: error: conflicting types for ‘kmalloc’
include/linux/mm.h:1125:14: note: previous implicit declaration of
‘kmalloc’ was here
make[1]: *** [init/do_mounts.o] Error 1
make: *** [init] Error 2