maemo.org - Talk - [Announce] kernel-plus for Harmattan

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- - [Announce] kernel-plus for Harmattan (https://talk.maemo.org/showthread.php?t=86543)

Re: [Announce] kernel-plus for Harmattan

Quote:

Originally Posted by Hurrian (Post 1388350)

Hey guys, just finally had time to test my recent changes.

Pelicularly, this new kernel /doesn't/ boot.

@juiceme, could you please load it up on your test N9 to see what's going on? Corresponding sources are at hurrian/kernel-plus-harmattan.

If it bombs somewhere related to mac80211/wl12xx, I'll revert the commits for now, if it's somewhere else guess I'll have to dig around a bit more.

I'm glad to do that, but unfortunately it has to wait over the weekend... I left my rig at my workpalce and will be able to get to it on monday morning :o

Re: [Announce] kernel-plus for Harmattan

systemd requires the directory /sys/fs/cgroup as a mountpoint. It doesn't exist in the kernel (2.6.35). It can't be created with mkdir either because sysfs doesn't allow that. To create the directory this patch from the 2.6.36 kernel must be backported.

http://git.kernel.org/?p=linux/kerne...9dae0071bd11f3

The following kernel config options must be selected.
General setup --->[*] Control Group support
Device Drivers --->
Generic Driver Options --->[*] Maintain a devtmpfs filesystem to mount at /dev[*] Automount devtmpfs at /dev, after the kernel mounted the rootfs (NEW)
File systems --->
< > Kernel automounter support
<*> Kernel automounter version 4 support (also supports v3)

Re: [Announce] kernel-plus for Harmattan

Quote:

Originally Posted by weihuoya (Post 1388545)

I can confirm the device just hangs there, propably it is the sys mount that it is after. (did not try to patch it yet)

This is the last things that get written to console:

Code:

......

TCP cubic registered

NET: Registered protocol family 17

NET: Registered protocol family 15

Bluetooth: L2CAP ver 2.14

Bluetooth: L2CAP socket layer initialized

Bluetooth: SCO (Voice Link) ver 0.6

Bluetooth: SCO socket layer initialized

Bluetooth: RFCOMM TTY layer initialized

Bluetooth: RFCOMM socket layer initialized

Bluetooth: RFCOMM ver 1.11

Power Management for TI OMAP3.

SmartReflex device[1] initialized

SmartReflex device[2] initialized

input2 gpio-kays as /devices/platform/gpin-keys/input/Input3

VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3

panel-nokia-dsi display0: skipping HW reset

panel-nokia-dsi display0: pyrenees panel revision fe.91.96

regulator_init_complete: incomplete constraints, leaving rm696_vmmc1 on

asoc: WL1273 BT/FM codec <-> omap-mcbsp-dai-2 mapping ok

Waiting for root device /dev/mmcblk0p2...

mmc0: new high speed MMC card at address 0001

mmcblk0: mmc0:0001 HYNIX  14.8 GiB 

 mmcblk0:mmc_queue_do_make_request process kmmcd (pid 17), read to sector 0, sectors 8

 p1 p2 p3

mmc1: card claims to support voltages below the defined range. These will be ignored.

EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: errors=remount-ro

VFS: Mounted root (ext4 filesystem) on device 179:2.

Freeing init memory: 152K

mmc1: queuing unknown CIS tuple 0x91 (3 bytes)

mmc1: new SDIO card at address 0001

Aegis: Invoking userspace helper

Aegis: vhash code matched to validator-init

Aegis: Creating new mount point hashlist edc20000

validator-init: done (0,0x0,0x1c7,0x7)Aegis: enabled (config data protection)

Aegis: hashlist initialized

preinit: Root filesystem state ok

EXT4-fs (mmcblk0p2): re-mounted. Opts: errors=remount-ro,barrier=1,stripe=8,data=ordered

omap_device: smartreflex.0: new worst case activate latency 0: 30517

omap_device: smartreflex.0: new worst case deactivate latency 0: 30517

preinit: /var is still in rootfs. No changes

preinit: R&D mode enabled with flags: no-omap-wd,no-ext-wd,no-lifeguard,serial-console

preinit: Bootmode = 'normal', Bootreason = 'sw_rst'

preinit: Press any key for interactive startup

Mounting a tmpfs over /dev...done.

aegis start/running

Re: [Announce] kernel-plus for Harmattan

Code:

preinit: Press any key for interactive startup

hmm is this normal ?

Re: [Announce] kernel-plus for Harmattan

Quote:

Originally Posted by weihuoya (Post 1388545)

EDIT: Posted. See Page 1.

Sources patched, building.
kernel-plus 2.6.32.61-plus v5 will be built from the old local source directory, with source published as a .patch (again, sadly)

Rest assured, I'll try to match the kernel source with the Git source next time.

Details for the next release:

systemd support [On Harmattan!]
(cgroupfs: create /sys/fs/cgroup to mount cgroupfs on)
/proc/atags exported
Anyone want to work on porting uboot to N9/50? Start with this!
CONFIG_KEXEC enabled as a requirement of atags export
sched: Tweak sched_latency and min_granularity
mutex: Improve the scalability of optimistic spinning
net: __alloc_skb() speedup
KSM is also enabled, but not by default. eglibc may need to be recompiled for MADV_*MERGEABLE support. Programs linking into eglibc may need to be rebuilt. Uh-oh.

Quote:

Originally Posted by nieldk (Post 1388784)

Code:

preinit: Press any key for interactive startup

hmm is this normal ?

Nokia internal dev stuff can boot off MMC, NAND or USB, IIRC.

You can see some remnants of this code on the N900.

Re: [Announce] kernel-plus for Harmattan

Looking forward, and very happy with the progress speed on this kernel :)
One thing.
I think we should include kernel drivers for Prolific PL2303 USB-to-Serial port adapter in the kernel
I believe this could possibly enable the option for USB serial console. Not quite as good as Juice's 'real' serial, but, nevertheless, usefull.

http://www.tldp.org/HOWTO/Remote-Ser...re-kernel.html

http://cateee.net/lkddb/web-lkddb/US...AL_PL2303.html

Re: [Announce] kernel-plus for Harmattan

Quote:

Originally Posted by nieldk (Post 1388784)

Code:

preinit: Press any key for interactive startup

hmm is this normal ?

Yes, when you have R&D mode active that is part of preinit that's executed.

Re: [Announce] kernel-plus for Harmattan

Quote:

Originally Posted by nieldk (Post 1388818)

That would be useful, more so if you can initialize the USBSERIAL device as early as possible in order to capture all possible glitches.

Re: [Announce] kernel-plus for Harmattan

Hi

I am total noobie when it comes to this kernel stuff.

I have been following this thread from time to time and concluded that this probably isn't important for me as a basic user. I don't think that I would bee needing ExFAT or NTFS on my N9, I do get Injection from N900 days, but don't know if I need it either.

What I would be interested is that does this bring any performance/stability benefits? Besides Optimizer.

Really great to see that people are still working and tweaking the N9 under the hood. Thank you guys

Re: [Announce] kernel-plus for Harmattan

Quote:

Originally Posted by Boxeri (Post 1388882)

Well, of the top-of -my-head, stuff that are there or might soon be;
- iptables with all targets including full NAT
- wlan AP mode
- BT low energy mode
- possible performance enchancements
- bug corrections (FUSE performance, anyone?)
- all fancy new devices
- USB host mode
- etc. etc.