Official thread: "zen-sources" - Part II

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tranquilcool · Post by **tranquilcool** » Thu Mar 06, 2008 6:39 pm

2.6.24-zen-rt3 doesn't compile.

some error about signal if i remember well

gimpel · Post by **gimpel** » Thu Mar 06, 2008 8:20 pm

I think the main difference between zen and zen-rt is the CPU scheduler, with the -rt one allowing full preemption, and maybe other stuff from -rt. Things like IRQ threading and preemptible RCU are included in master too.

http://rt.wiki.kernel.org/index.php/Main_Page for reading.

I havent used -rt since I decided to switch to uvesafb as framebuffer driver, it simply doesn't work in -rt. No matter if static or as module. No matter if "vanilla" -rt or zen-rt.

mroconnor · Post by **mroconnor** » Thu Mar 06, 2008 8:41 pm

Has anyone else had this issue when trying to compile master-devel 2.6.25?

Code: Select all

  AS      arch/x86/lib/putuser_64.o
  AS      arch/x86/lib/rwlock_64.o
  AS      arch/x86/lib/thunk_64.o
  CC      arch/x86/lib/usercopy_64.o
  AR      arch/x86/lib/lib.a
  LD      vmlinux.o
  MODPOST vmlinux.o
WARNING: modpost: Found 28 section mismatch(es).
To see full details build your kernel with:
'make CONFIG_DEBUG_SECTION_MISMATCH=y'
  GEN     .version
  CHK     include/linux/compile.h
  UPD     include/linux/compile.h
  CC      init/version.o
  LD      init/built-in.o
  LD      .tmp_vmlinux1
arch/x86/kernel/built-in.o: In function `acpi_save_state_mem':
(.text+0x1017c): undefined reference to `setup_trampoline'
make: *** [.tmp_vmlinux1] Error 1

Where should I look to fix this issue? I have tried 'make clean' but that didn't help.

Also does anyone have 2.6.25 running with any version of ati-drivers??

Thanks in advance!!

math_roc · Post by **math_roc** » Fri Mar 07, 2008 7:41 am

Hello,

I just do a git branch, in /usr/portage/distfiles/git-src/zen-sources and I'm confuse :s
here is what I got:

mathieu@localhost /usr/portage/distfiles/git-src/zen-sources $ git branch
acer-acpi
acpi
alsa
aufs
badram
btrfs
chunkfs
ckpatches
colored-printk
cpu-support
edac
ext4dev
fujitsu-laptop
fuse-chunkfs
genetic
genpatches
gregkh
gspca
hz-kconfig
ipw3945
libata
linux-phc
mactel
* master
misc
powertop
ps3-linux
rcu-preempt
realtime-lsm
reiser4
sched-cfs
shadow-directories
squashfs
thinkpad
tifmxx
toshiba-acpi
toshiba_smi
tuxonice
unionfs
wireless
zen-logo

but, what are all these branchs??

I just want to use tuxonice and powertop, is there a way to do that?

ps: I really new with git stuff (and english isn't my native language)

soundcheck · Post by **soundcheck** » Fri Mar 07, 2008 8:20 am

Hi folks.

Anybody tried the preempt-benchmark test.

http://rt.wiki.kernel.org/index.php/Preemption_Test

WIth the zen-gaming option configured it shows

Stats: [min: 4us @ row 1] [max: 32us @ row 97] {ave: 6us]

Meaning 6us latency between processes on a Core Duo 2.1Ghz.

Would be nice to see some others benchmarks over here.

However:
Strange though. First the tool reports the results then the tool also states it failed with 62 errors. I am wondering if the results are reliable at all. (Does anybody know the problem?)
Further comment : The rt-wiki is not really up2date.

Cheers
KLS

Waninkoko · Post by **Waninkoko** » Fri Mar 07, 2008 2:28 pm

math_roc: the repository has lots of branches for every feature that zen includes.

We're moving to a new (and faster) git server so right now we can't update the tree.

Post by **NeddySeagoon** » Sun Mar 09, 2008 12:51 pm

Please continue in Official thread: "zen-sources"; - Part III

The forums have problems with threads much longer than this.

Locked to preserve everyones sanity.