Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

Agree.

If you use VFP then there is no difference whether it is pure ARM, ot thumb2, in either case you have a penalty if the code is not well optimized. The major difference between thumb and thumb2 is that thumb2 is almost as fast as ARM, and AFAIK there is no penalty for mixing ARM/thumb2 code.

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

Info: with 2.9M available rootfs, i still have to move '/usr/share/themes/beta' (7.1M) and '/usr/share/nokia-maps' (8.1M) back. This is after removal of kernel-power.

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

Some observations:
-2.6.28.10-cssu1 is running on 850 Mhz
-you have to install kernel-cssu-flasher
-cat /proc/cpuinfo doesn't show thumb2
-kernel too old to chroot into ubuntu 12.04

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

after installing N900 is hanging after a while, also i cannot use terminal, when i open it get freeze

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

Which kernel boots? it MUST be -cssu1

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

But of course, it is the same old KP50 with some modification, read the OP.

You only have to install kernel-cssu-flasher if you did not update in HAM/did not do apt-get update, so an older version of mp-fremantle-community-pr is used

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

i have installed CSSU testing.....booting into power kernel

//Edit: I did apt-upgrade, not via HAM

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

You need to boot into the CSSU kernel, using CSSU thumb.

(Side note: this is incredibly promising. Wish both of these get merged into CSSU-main and KP.)

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

Well, again, you MUST have kernel-cssu flashed (or kernel-cssu-bootimg booted via u-boot) in order to have stable thumb2, there is just no other way.

You could try a full power cycle, sometimes the device does not cleanly reboot and SGX driver almost freezes the system

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

Thumb2 support is going in next KP for sure. While for CSSU-main, well, you'd better ask the maintainers :P

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

Which CSSU flavour are you using for Thumb2 version (Stable, Testing, Devel) ?

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

CSSU-Testing

EDIT: Plus there will be stuff like microb(if I find a way to correctly thumb-compile it) and other system things which are not in CSSU.

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

Im still somewhat of a noob at this.

So far i have: (on my extra N900)
Flashed with 1.3PR
installed FAM & Conky
Installed CSSU testing
what else do i need to do before installing the stable Thumb2, just to be sure before i proceed.

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

That is pretty enough (and according to merlin1991 even installing CSSU-T is not necessary as he said the the repo is setup in such a way, that installing CSSU-thumb automagicaly pulls what is needed from CSSU-T)

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

for someone who just started using CSSU (yes that late...) do i hit the normal update blinking thing, and update like every other thing or does this imply some other way of doing the update.

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

is there any way to revert back from this? or reinstall? still my n900 freezes every now and then....

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

may I have your "uname -a" output? Did you do a power off/ on cycle?

@dr_frost_dk: yep, that is the way it should be, please read howto install CSSU on wiki

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

just made a reflash and then a clean install of Thumb version of CSSU. One question. Is 74 MB in rootfs right after installation of just Thumb CSSU normal?
i am eagerly waiting for more thumb packages...

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

I don't get the point, is it too low? Could be, as explained in OP, Qt libs are moved to rootfs from /opt. That free space will increase when more packages become thumb2 compiled.

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

It's working great.
It runs faster (I think)
It takes 23MB of rootfs (I have 63MB free before, now 40MB)
We need more thumb packages and open source microb :D

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

Another interesting project from Freemangordon :)

What's the reason for moving the Qt libs to rootfs? Is it a packaging reason, technical cause, performance or... I could not find that in the easlier posts. And can I move it back to opt using a symlink afterwards if I run low on space in rootfs?

Will definitely give it a try somewhere in the comming weeks.

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

The rationale behind moving Qt is that rootfs is faster than /opt, being a different and faster technology. I hope most of the rootfs space will be regained when more packages are thumb-compiled. And you can move it back (and symlink) to /opt if you wish

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

$ uname -a
Linux Nokia-N900 2.6.28.10-power50 #1 PREEMPT Sun Mar 18 20:10:56 EET 2012 armv7l GNU/Linux

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

Ok so far im using 127MB before and after this...

But before i had a max memory of 240, now 230?
I can see in conky that all running programs (at same uptime as before) are using a little less memory so there is something here.

Submitting 2x screenshots, download and compare, alot of things are changed.

https://dl.dropbox.com/u/29047266/N9...612-171637.png
-
https://dl.dropbox.com/u/29047266/N9...612-200858.png

Now i have just installed this so i can't say about performance.

And followup: can i install powerkernel and OC?

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

a) this is basically KP50 and replaces it (for this purpose here)
b) freemangordon said the install can be forced for the current 'kernel-power-settings' package, but it needs to be updated

EDIT: come on, this thread is not even 2 full pages long and you are an oldtimer here ;)

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

i tried power off / on also, i removed battery for a while and restarted......can i reinstall this?

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

freemangordon: Can you give a little more info on the microb you tried to build.
Complete compile of microb or just the microb-engine?
Are the full sources (ui, microb-engine, browserd) now available?

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

Very impressive, and I did not install it no inconvenience, no errors detected, and apparently see better performance, applications are opened little faster, and do not stutter badly when multitasking. I look forward to new updates and the new compilation of microb.

One question you mention above about moving Qt libs to roofts, but my n900 have now 18.2mb (before updating had 36,1mb) in rootfs and Use moveroot.sh (script for tanner) http://wiki.maemo.org/User:Tanner#Re...ing_the_flash; and other command post to other roofts Cleanup ie; http://talk.maemo.org/showthread.php...ghlight=moving and Sifo script http://talk.maemo.org/showthread.php?t=84398&page=2, in the following updates are occupied more space in the rootfs? can I free more space for rootfs by other means?

Thank you and all community of maemo for keeping alive my n900.:D:D:D

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

rootfs is also compressed on the go which actually makes all that blessed speed gain negligible if not counterproductive. If someone opened up rootfs he would be a saviour (in speed dept and a blasphemer as what is now in rootfs will need a LOT more space to fit. I can put 10mb of .c/.h files and they will take around 500kb of it. With uncompressed rootfs no libraries/dev packages that's for sure).
One easy experiment is moving microb binary to opt and comparing starttime after kill. For me opted binary starts faster (lots of non-plaintext code to decompress), but probably biased. See for yourself, difference in size taken from rootfs vs claimed is easily confirmed, just copy a file there and compare. Since saving rootfs is the goal, crowding it with qt, no idea why

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

Hmm installed power kernel to OC, now everything crashes & getting internal error, FAM does not work.

Is there anyway to use the Thumb2 and OC, i can defiantly see a less memory impact vs my main N900, very little swap used so far, less then half.

Glad i have my extra N900 now to test with :)

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

Yes, you should be able to symlink around 30mb(?) of Qt libraries out of rootfs. No idea where to find the whole listing of files modified/added/removed/replaced in this update, this with a simple macro could prepare you a copy/paste material

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

The kernel-cssu that comes with the thumb metapackage IS power-kernel, and you can OC with it. Installing pure KP50 over what is essentially KP50 with the fix for the thumb hardware bug added undoes the fix and makes everything unstable.

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

I have successfully installed via FAM. Now I realize that before the update was not proper. Also eventhough an update shown in HAM, I was not able to update because of meory issue(its since long time and so I use FAM). Now uname -a shows 2.6.28.10-cssu1

Those who tried to help me, a big thanks for respoding to my foolish questions. but beleive me , now only I realize those were too stupid questions.

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

i used the moveroot.sh script and i have 65mb free in rootfs but still i get the msg that i need pc suite

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

@Mohammed Muid
in FAM add the new repo and use it for updating :) .

im facing "internal error appliction closed " in sittings and conversations but not always :o i dont know if with other apps too ??

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

thanks sifo. i did install it. also selected from the multiboot option. my kp50 said guru error. then i selected no.2 cssu internal NAND. but i am not seeing any difference.where is the change?

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

It is microb-engine I am trying to build. Actually it builds, browserd starts ok, but refuses to fork when a client (i.e. browser, rtcom-messaging-ui,...) issues a dbus call to it. The problem is that there are no error messages in syslog from browserd itself, only from the client applications. And we have no -dbg package for browserd, so I cannot set breakpoints properly with gdb in an attempt to check what is going on. Etc, etc,...

On the other hand successful thumb-building of microb-engine is a must, thumb-compiled libxul.so is 11MiB against 14MiB ARM compiled. And that is only one library, there are lots more.

If anyone of you can help on that one I will really appreciate that.

@szopin: hmm, maybe you are right and it was not so good idea to move Qt out of the /opt. Any idea how to compare reading speed of rootfs vs /opt?

EDIT:

We definitely need Oleg Romashin (romaxa) to help us on the microb-engine issue, I just won't be able to fix it by myself :(

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

what happens if you use the replacement browserd by johnathan wilson mentioned here: http://www.mwkn.net/2011/45/devel.html

in http://talk.maemo.org/showthread.php...light=browserd romaxa also mentioned a new ipc stack which would improve performance but sadly there's been no further news afaik.

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

Maybe this suite could help. The makefile at least specifies 'linux-arm'.

Re: [ANNOUNCE] CSSU-thumb thread - stable Thumb2 on N900
 

Thanks freemangordon, working very well here!
I only had to reinstall pali's u-boot but the item files are already there :)
Also looking forward to your microb engine work.

Question:
Once the CSSU-testing gets thumb2 will we be able to switch back?