[debian] [2.6.28] problems with kernel

[Christian Adams]

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hi luca,

Am 11.02.2009 um 14:38 schrieb Luca Capello:

> Hi Christian!
>
> From now on, I will continue only on the -kernel mailing list.
>
> On Wed, 11 Feb 2009 00:55:52 +0100, Christian Adams wrote:
>> i was testing kernel 2.6.28 (installed from pkg-fso.alioth /
>> downloaded from dl.fso.org/stable/ms5 + modules)
>
> Do you mean that the problems are present with both kernels?

yup - with both kernels the same problems

>> and got some probs:
>> - when starting with plugged in usb-net everything runs fine
>> - when starting w/o usb-ned or with OM-charger i get the following
>> dmesg:
>>
>> --- snip ----
> [...]
>> [21474645.085000] Bluetooth: RFCOMM ver 1.10
>> [21474648.800000] glamo-mci glamo-mci.0: command timeout, continuing
>> [21474662.840000] channel hint set to 2412
>> [21474662.850000] AR6000 disconnected
>> [21474662.910000] AR6000 connected event on freq 2412 with bssid
>> 00:14:51:73:52:6d  listenInterval=100, beaconInterval = 100,
>> beaconIeLen = 26 assocReqLen=52 assocRespLen =22
>
> WiFi should be disabled by default, while yours seems to be enabled at
> boot.  Do you have configured something specific?

nop i did nod configure something specific

as is see it now, wifi comes up at boot but get's disabled by  
frameworkd on start

i got this after i did the following:

boot with 2.6.24
copy 2.6.28 uImage.bin to /boot
reboot with plugged in usb-net (all fine so far)
check some things
	enabled wifi via dbus-call (requested resource wifi), got  
connection, etc
	ping some hosts
	disbabled wifi via dbus-call (released resource wifi)
	disconnected usb-net
reboot via dbus-call

and the dmesg-output i posted was what i got after rebooting without  
connected usb-net
(this behaviour i can reproduce)

>> [21474742.700000] Unable to handle kernel NULL pointer dereference at
>> virtual address 00000126
>> [21474742.700000] pgd = c6f98000
>> [21474742.700000] [00000126] *pgd=36c27031, *pte=00000000,
>> *ppte=00000000
>> [21474742.700000] Internal error: Oops: 17 [#1] PREEMPT
>
>> [21474742.700000] Modules linked in: rfcomm l2cap
>> snd_soc_neo1973_gta02_wm8753 snd_soc_s3c24xx_i2s snd_soc_s3c24xx
>> snd_soc_wm8753 snd_soc_core snd_pcm_oss snd_mixer_oss snd_pcm
>> snd_timer snd_page_alloc snd ipv6 g_ether cdc_ether btusb bluetooth
>> ohci_hcd
>> [21474742.700000] CPU: 0    Not tainted  (2.6.28-20090105.git69b2aa26
>> #1)
>
> I have not seen this oops yet, but I have not used WiFi as well.
>
>> other problem:
>>   - frameworkd does not react (thus started, i get timeouts when i
>> try to start opp)
>
> Strange, it works nicely here.  Have you tried a clean installation or
> an installation on another microSD?

actually i don't have another free uSD available now - should bye one  
i think ..

hmm .. i think i must test some things .. i get ideas ..

i think some things are too fast and some other things too slow ..

in this setup i actualy have, wicd is started right after frameworkd
with the assumption, wifi comes up by default and gets turned off  
while frameworkd is starting
it could happen, frameworkd turns off wifi right in the moment where  
wicd tries to configure eth0
=> kernel-oups => network-stack unusable (later connected usb-net is  
also disfunctional)

>> oddity:
>>   - /dev/input/eventX does not longer (as it did in 2.6.24) emit
>> events on insert/removal of usb
>
> I am not sure how I should test it, would you explain it, please?

with 2.6.24 /dev/input/event4 emits a signal when something is  
inserted to / removed from usb-port
	and frameworkd also emits a dbus-signal
with 2.6.28 this does not happen

cheers,
	christian (morlac) adams

> Thx, bye,
> Gismo / Luca
> _______________________________________________
> Smartphones-kernel mailing list
> Smartphones-kernel at linuxtogo.org
> http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/smartphones-kernel

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   eMail:	morlac at morlac.de
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