Query

Query

[RahulSrivastava 71616]

Hi All,
       I have a query. When using Linux SCTP one-to-many style sockets sendmsg succedes even though message is not delivered at the peer. When I ask the socket to wait for notification it gave send failed in notification.
Is this possible for sendmsg to fail for even for one-to-many style socket (for peer errors)?

Regards,
Rahul



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Re: Query

[Vlad Yasevich]

RahulSrivastava 71616 wrote:
> Hi All,
>        I have a query. When using Linux SCTP one-to-many style sockets sendmsg succedes even though message is not delivered at the peer. When I ask the socket to wait for notification it gave send failed in notification.
> Is this possible for sendmsg to fail for even for one-to-many style socket (for peer errors)?
> 

Yes.  sendmsg() will return success when the data has successfully been accepted
by the kernel.  However, if peer has problems, you may get a SEND_FAILED
notification.

This is not linux SCTP specific.  TCP can behave the same way (minus the
notification).

-vlad

> Regards,
> Rahul
> 
> 
> 
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Re: Query

[RahulSrivastava 71616]

Thanks!
If sendmsg succedes like this then how its possible to maintain ordering of messages:
Consider below order:
  send1 ----> send2

send1 was not recieved but send2 was successfully recived by peer on same association. Application gets a notification of send1 (indicating send failed).



Regards,
Rahul


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----- Original Message -----
From: Vlad Yasevich <vladislav.yasevich@hp.com>
Date: Monday, January 11, 2010 10:35 pm
Subject: Re: Query
To: RahulSrivastava 71616 <rahuls@huawei.com>
Cc: linux-sctp@vger.kernel.org

> 
> 
> RahulSrivastava 71616 wrote:
> > Hi All,
> >        I have a query. When using Linux SCTP one-to-many style 
> sockets sendmsg succedes even though message is not delivered at 
> the peer. When I ask the socket to wait for notification it gave 
> send failed in notification.
> > Is this possible for sendmsg to fail for even for one-to-many 
> style socket (for peer errors)?
> > 
> 
> Yes.  sendmsg() will return success when the data has successfully 
> been accepted
> by the kernel.  However, if peer has problems, you may get a 
> SEND_FAILEDnotification.
> 
> This is not linux SCTP specific.  TCP can behave the same way 
> (minus the
> notification).
> 
> -vlad
> 
> > Regards,
> > Rahul
> > 
> > 
> > 
> > 
> ******************************************************************************************>  This email and its attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained here in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this email in error, please notify the sender by phone or email immediately and delete it!
> >  
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> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> > 
> 

Re: Query

[Vlad Yasevich]

RahulSrivastava 71616 wrote:
> Thanks!
> If sendmsg succedes like this then how its possible to maintain ordering of messages:
> Consider below order:
>   send1 ----> send2
> 
> send1 was not recieved but send2 was successfully recived by peer on same association. Application gets a notification of send1 (indicating send failed).
> 

No, that will not happen on the same association unless partial reliability is
used.

In the normal scenario (full reliability), if send1 fails, then the association
is destroyed.  The SEND_FAILED event is typically generated in the case of
excessive retransmissions that cause the association to terminate.  There are
a few other times it can be generated, but all those times have to do with
setting a time_to_live on the message.

So, if you are using implicit connect (i.e used the sendto/sendmsg() call
to establish an association), then the steps are these:

1) queue the message to the kernel queue.
2) start association procedure.
   a) if association is successful, send the message.
   b) if association fails, notify the user to association and send failure.

If if you already have an association, the protocol will attempt to deliver
all messages in order.  If the message has already been queued to the kernel,
and the association terminates due to retransmissions, you will get an
association termination notification and a send failed notification.
Any subsequent send calls by the applications will attempt to establish a
new association.

-vlad
> 
> 
> Regards,
> Rahul
> 
> 
> ******************************************************************************************
>  This email and its attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained here in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this email in error, please notify the sender by phone or email immediately and delete it!
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> 
> ----- Original Message -----
> From: Vlad Yasevich <vladislav.yasevich@hp.com>
> Date: Monday, January 11, 2010 10:35 pm
> Subject: Re: Query
> To: RahulSrivastava 71616 <rahuls@huawei.com>
> Cc: linux-sctp@vger.kernel.org
> 
>>
>> RahulSrivastava 71616 wrote:
>>> Hi All,
>>>        I have a query. When using Linux SCTP one-to-many style 
>> sockets sendmsg succedes even though message is not delivered at 
>> the peer. When I ask the socket to wait for notification it gave 
>> send failed in notification.
>>> Is this possible for sendmsg to fail for even for one-to-many 
>> style socket (for peer errors)?
>> Yes.  sendmsg() will return success when the data has successfully 
>> been accepted
>> by the kernel.  However, if peer has problems, you may get a 
>> SEND_FAILEDnotification.
>>
>> This is not linux SCTP specific.  TCP can behave the same way 
>> (minus the
>> notification).
>>
>> -vlad
>>
>>> Regards,
>>> Rahul
>>>
>>>
>>>
>>>
>> ******************************************************************************************>  This email and its attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained here in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this email in error, please notify the sender by phone or email immediately and delete it!
>>>  
>> *****************************************************************************************> --
>>> To unsubscribe from this list: send the line "unsubscribe linux-
>> sctp" in
>>> the body of a message to majordomo@vger.kernel.org
>>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>>
> 

Query

[RahulSrivastava 71616]

Hi All,
       I am running a test application and I am finding lksctp performance is at least 25% of UDP on Linux.
Specifically my profiler tells sctp_sendmsg is at least 5 times slower than UDP sendto.

Can anybody provide pointers on this?
Regards,
Rahul


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query

[Kallumari]

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Hi All,

I am trying to get ofono running on my Intel Edison board.

We have Intel Arduino Board with Ublox Sara-G350 connected via ttyMFD1 device.


1.    Placed necessary configuration files at the needed places.

a.    Ofono.conf

b.    Tun.conf

c.    Ofono.rules

2.    Updated ofono.rules with the following,
# Ublox SARA-G350
ATTRS{idVendor}=="1546", ATTRS{idProduct}=="1102", ENV{OFONO_DRIVER}="ublox"

3.    tun.conf into modules-load.d, but when I do lsmod I do not see module tun being loaded !

4.    when I try running ofonod, I get struck at BT stuff as attached.

Please let me know if I am missing something.

Regards,
Ram.


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root@edison:/home/ofono# export OFONO_AT_DEBUG=1
root@edison:/home/ofono# ./ofonod -nd &
[1] 305
root@edison:/home/ofono# ofonod[305]: oFono version 1.16
ofonod[305]: src/plugin.c:__ofono_plugin_init()
ofonod[305]: plugins/push-notification.c:push_notification_init()
ofonod[305]: plugins/smart-messaging.c:smart_messaging_init()
ofonod[305]: src/cdma-provision.c:ofono_cdma_provision_driver_register() driver: 0x8197e40 name: CDMA provisioning
ofonod[305]: src/gprs-provision.c:ofono_gprs_provision_driver_register() driver: 0x8197e00 name: Provisioning
ofonod[305]: plugins/dun_gw_bluez5.c:dun_gw_init()
ofonod[305]: src/handsfree-audio.c:ofono_handsfree_card_driver_register() driver: 0x8197c80
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197ca0, name: hfp
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197c00, name: ublox
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197ba0, name: quectel
ofonod[305]: plugins/he910.c:he910_init()
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197b40, name: he910
ofonod[305]: plugins/connman.c:connman_init()
ofonod[305]: src/private-network.c:ofono_private_network_driver_register() driver: 0x8197b00, name: ConnMan Private Network
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197aa0, name: sim900
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197a40, name: samsung
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x81979e0, name: speedupcdma
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197980, name: speedup
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197920, name: alcatel
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x81978c0, name: icera
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197860, name: linktop
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197800, name: nokiacdma
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x81977a0, name: nokia
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197740, name: tc65
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x81976a0, name: ste
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197640, name: ifx
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x81975e0, name: palmpre
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197580, name: novatel
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197520, name: sierra
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x81974a0, name: huawei
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197440, name: zte
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x81973e0, name: hso
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197380, name: mbm
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197320, name: calypso
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x81972c0, name: wavecom
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197260, name: g1
ofonod[305]: src/cdma-voicecall.c:ofono_cdma_voicecall_driver_register() driver: 0x81971e0, name: cdmamodem
ofonod[305]: src/modem.c:ofono_devinfo_driver_register() driver: 0x8197200, name: cdmamodem
ofonod[305]: src/cdma-connman.c:ofono_cdma_connman_driver_register() driver: 0x8197224, name: cdmamodem
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197140, name: phonesim
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8197180, name: localhfp
ofonod[305]: src/gprs.c:ofono_gprs_context_driver_register() driver: 0x819711c, name: phonesim
ofonod[305]: src/ctm.c:ofono_ctm_driver_register() driver: 0x8197108, name: phonesim
ofonod[305]: src/radio-settings.c:ofono_radio_settings_driver_register() driver: 0x81970e0, name: phonesim
ofonod[305]: plugins/phonesim.c:parse_config() filename /etc/ofono/phonesim.conf
ofonod[305]: Reading of /etc/ofono/phonesim.conf failed: No such file or directory
ofonod[305]: src/ussd.c:ofono_ussd_driver_register() driver: 0x81970a0, name: speedupmodem
ofonod[305]: src/voicecall.c:ofono_voicecall_driver_register() driver: 0x8196f40, name: hfpmodem
ofonod[305]: src/modem.c:ofono_devinfo_driver_register() driver: 0x8196ffc, name: hfpmodem
ofonod[305]: src/network.c:ofono_netreg_driver_register() driver: 0x8196fa0, name: hfpmodem
ofonod[305]: src/call-volume.c:ofono_call_volume_driver_register() driver: 0x8196fd4, name: hfpmodem
ofonod[305]: src/handsfree.c:ofono_handsfree_driver_register() driver: 0x8197020, name: hfpmodem
ofonod[305]: src/siri.c:ofono_siri_driver_register() driver: 0x8197050, name: hfpmodem
ofonod[305]: src/network.c:ofono_netreg_driver_register() driver: 0x8196ea0, name: dunmodem
ofonod[305]: src/gprs.c:ofono_gprs_driver_register() driver: 0x8196ecc, name: dunmodem
ofonod[305]: src/voicecall.c:ofono_voicecall_driver_register() driver: 0x8196dc0, name: stemodem
ofonod[305]: src/gprs.c:ofono_gprs_context_driver_register() driver: 0x8196e50, name: stemodem
ofonod[305]: src/radio-settings.c:ofono_radio_settings_driver_register() driver: 0x8196e20, name: stemodem
ofonod[305]: src/voicecall.c:ofono_voicecall_driver_register() driver: 0x8196c80, name: ifxmodem
ofonod[305]: src/audio-settings.c:ofono_audio_settings_driver_register() driver: 0x8196cd0, name: ifxmodem
ofonod[305]: src/radio-settings.c:ofono_radio_settings_driver_register() driver: 0x8196d00, name: ifxmodem
ofonod[305]: src/gprs.c:ofono_gprs_context_driver_register() driver: 0x8196d30, name: ifxmodem
ofonod[305]: src/stk.c:ofono_stk_driver_register() driver: 0x8196d58, name: ifxmodem
ofonod[305]: src/ctm.c:ofono_ctm_driver_register() driver: 0x8196d80, name: ifxmodem
ofonod[305]: src/gprs.c:ofono_gprs_context_driver_register() driver: 0x8196c00, name: hsomodem
ofonod[305]: src/radio-settings.c:ofono_radio_settings_driver_register() driver: 0x8196c20, name: hsomodem
ofonod[305]: src/location-reporting.c:ofono_location_reporting_driver_register() driver: 0x8196ba0, name: telitmodem
ofonod[305]: src/location-reporting.c:ofono_location_reporting_driver_register() driver: 0x8196ba0 not null
ofonod[305]: src/gprs.c:ofono_gprs_context_driver_register() driver: 0x8196b00, name: mbmmodem
ofonod[305]: src/stk.c:ofono_stk_driver_register() driver: 0x8196b28, name: mbmmodem
ofonod[305]: src/location-reporting.c:ofono_location_reporting_driver_register() driver: 0x8196b48, name: mbmmodem
ofonod[305]: src/location-reporting.c:ofono_location_reporting_driver_register() driver: 0x8196b48 not null
ofonod[305]: src/voicecall.c:ofono_voicecall_driver_register() driver: 0x8196a60, name: calypsomodem
ofonod[305]: src/stk.c:ofono_stk_driver_register() driver: 0x8196aa8, name: calypsomodem
ofonod[305]: src/ussd.c:ofono_ussd_driver_register() driver: 0x8196940, name: huaweimodem
ofonod[305]: src/voicecall.c:ofono_voicecall_driver_register() driver: 0x8196960, name: huaweimodem
ofonod[305]: src/audio-settings.c:ofono_audio_settings_driver_register() driver: 0x81969a8, name: huaweimodem
ofonod[305]: src/radio-settings.c:ofono_radio_settings_driver_register() driver: 0x81969e0, name: huaweimodem
ofonod[305]: src/gprs.c:ofono_gprs_context_driver_register() driver: 0x81969bc, name: huaweimodem
ofonod[305]: src/cdma-netreg.c:ofono_cdma_netreg_driver_register() driver: 0x8196a10, name: huaweimodem
ofonod[305]: src/gprs.c:ofono_gprs_context_driver_register() driver: 0x81968a0, name: iceramodem
ofonod[305]: src/radio-settings.c:ofono_radio_settings_driver_register() driver: 0x81968e0, name: iceramodem
ofonod[305]: src/radio-settings.c:ofono_radio_settings_driver_register() driver: 0x8196840, name: ztemodem
ofonod[305]: src/gprs.c:ofono_gprs_context_driver_register() driver: 0x8196800, name: swmodem
ofonod[305]: src/radio-settings.c:ofono_radio_settings_driver_register() driver: 0x81967a0, name: nwmodem
ofonod[305]: src/voicecall.c:ofono_voicecall_driver_register() driver: 0x8196600, name: atmodem
ofonod[305]: src/modem.c:ofono_devinfo_driver_register() driver: 0x81966a0, name: atmodem
ofonod[305]: src/call-barring.c:ofono_call_barring_driver_register() driver: 0x8196658, name: atmodem
ofonod[305]: src/call-forwarding.c:ofono_call_forwarding_driver_register() driver: 0x8196380, name: atmodem
ofonod[305]: src/call-meter.c:ofono_call_meter_driver_register() driver: 0x81963c0, name: atmodem
ofonod[305]: src/call-settings.c:ofono_call_settings_driver_register() driver: 0x8196280, name: atmodem
ofonod[305]: src/phonebook.c:ofono_phonebook_driver_register() driver: 0x8196678, name: atmodem
ofonod[305]: src/ussd.c:ofono_ussd_driver_register() driver: 0x81965c4, name: atmodem
ofonod[305]: src/sms.c:ofono_sms_driver_register() driver: 0x8196300, name: atmodem
ofonod[305]: src/sim.c:ofono_sim_driver_register() driver: 0x8196480, name: atmodem
ofonod[305]: src/sim.c:ofono_sim_driver_register() driver: 0x81964e0, name: atmodem-noef
ofonod[305]: src/stk.c:ofono_stk_driver_register() driver: 0x81965a4, name: atmodem
ofonod[305]: src/network.c:ofono_netreg_driver_register() driver: 0x8196420, name: atmodem
ofonod[305]: src/cbs.c:ofono_cbs_driver_register() driver: 0x8196360, name: atmodem
ofonod[305]: src/call-volume.c:ofono_call_volume_driver_register() driver: 0x81966c4, name: atmodem
ofonod[305]: src/gprs.c:ofono_gprs_driver_register() driver: 0x81966f4, name: atmodem
ofonod[305]: src/gprs.c:ofono_gprs_context_driver_register() driver: 0x8196718, name: atmodem
ofonod[305]: src/sim-auth.c:ofono_sim_auth_driver_register() driver: 0x8196730, name: atmodem
ofonod[305]: src/gnss.c:ofono_gnss_driver_register() driver: 0x8196748, name: atmodem
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8196060, name: gobi
ofonod[305]: src/modem.c:ofono_devinfo_driver_register() driver: 0x8195e20, name: qmimodem
ofonod[305]: src/network.c:ofono_netreg_driver_register() driver: 0x8195ea0, name: qmimodem
ofonod[305]: src/voicecall.c:ofono_voicecall_driver_register() driver: 0x8195e40, name: qmimodem
ofonod[305]: src/sim.c:ofono_sim_driver_register() driver: 0x8195ee0, name: qmimodem-legacy
ofonod[305]: src/sim.c:ofono_sim_driver_register() driver: 0x8195f40, name: qmimodem
ofonod[305]: src/sms.c:ofono_sms_driver_register() driver: 0x8195fa0, name: qmimodem
ofonod[305]: src/ussd.c:ofono_ussd_driver_register() driver: 0x8195fc0, name: qmimodem
ofonod[305]: src/gprs.c:ofono_gprs_driver_register() driver: 0x8195fd4, name: qmimodem
ofonod[305]: src/gprs.c:ofono_gprs_context_driver_register() driver: 0x8195fe8, name: qmimodem
ofonod[305]: src/radio-settings.c:ofono_radio_settings_driver_register() driver: 0x8196000, name: qmimodem
ofonod[305]: src/location-reporting.c:ofono_location_reporting_driver_register() driver: 0x8196028, name: qmimodem
ofonod[305]: src/location-reporting.c:ofono_location_reporting_driver_register() driver: 0x8196028 not null
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8195dc0, name: u8500
ofonod[305]: src/modem.c:ofono_devinfo_driver_register() driver: 0x8195da0, name: u8500
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8195d40, name: n900
ofonod[305]: src/modem.c:ofono_modem_driver_register() driver: 0x8195ce0, name: isiusb
ofonod[305]: src/modem.c:ofono_devinfo_driver_register() driver: 0x81959d0, name: isimodem
ofonod[305]: src/phonebook.c:ofono_phonebook_driver_register() driver: 0x81959c0, name: isimodem
ofonod[305]: src/network.c:ofono_netreg_driver_register() driver: 0x8195a00, name: isimodem
ofonod[305]: src/voicecall.c:ofono_voicecall_driver_register() driver: 0x8195a40, name: isimodem
ofonod[305]: src/sms.c:ofono_sms_driver_register() driver: 0x8195aa0, name: isimodem
ofonod[305]: src/cbs.c:ofono_cbs_driver_register() driver: 0x8195ac0, name: isimodem
ofonod[305]: src/sim.c:ofono_sim_driver_register() driver: 0x8195ae0, name: isimodem
ofonod[305]: src/ussd.c:ofono_ussd_driver_register() driver: 0x8195b28, name: isimodem
ofonod[305]: src/call-forwarding.c:ofono_call_forwarding_driver_register() driver: 0x8195b40, name: isimodem
ofonod[305]: src/call-settings.c:ofono_call_settings_driver_register() driver: 0x8195b60, name: isimodem
ofonod[305]: src/call-barring.c:ofono_call_barring_driver_register() driver: 0x8195b90, name: isimodem
ofonod[305]: src/call-meter.c:ofono_call_meter_driver_register() driver: 0x8195bc0, name: isimodem
ofonod[305]: src/radio-settings.c:ofono_radio_settings_driver_register() driver: 0x8195c00, name: isimodem
ofonod[305]: src/gprs.c:ofono_gprs_driver_register() driver: 0x8195c28, name: isimodem
ofonod[305]: src/gprs.c:ofono_gprs_context_driver_register() driver: 0x8195c3c, name: isimodem
ofonod[305]: src/audio-settings.c:ofono_audio_settings_driver_register() driver: 0x8195c54, name: isimodem
ofonod[305]: src/sim.c:ofono_sim_driver_register() driver: 0x8195c60, name: wgmodem2.5
ofonod[305]: plugins/udevng.c:udev_start()
ofonod[305]: plugins/udevng.c:enumerate_devices()
ofonod[305]: plugins/hfp_hf_bluez5.c:connect_handler() Registering External Profile handler ...
ofonod[305]: plugins/bluez5.c:bt_register_profile() Bluetooth: Registering 0000111e-0000-1000-8000-00805f9b34fb (hfp_hf) profile
ofonod[305]: plugins/bluez5.c:profile_register_cb()

RE: query

[Kallumari]

[-- Attachment #1: Type: text/plain, Size: 1426 bytes --]

Hello All,

As said below, I am using the Intel Edison board with a Ublox on a serial interface.

After doing some debugging got to know that the "/plugins/udevng.c:enumerate_devices()" does get struck and
nothing happens after that.

The function "udev_enumerate_get_list_entry" under "enumerate_devices" does not
Seem to return properly and there after nothing happens.

1.    Check_device/check_usb_device does not get called

2.    Create_modem won't happen.

Please let me know if this is some issue with the udev libraries or something else.

Regards,
Ram.

From: ofono [mailto:ofono-bounces(a)ofono.org] On Behalf Of Kallumari Nagaraja Rao, RammohanX
Sent: Tuesday, July 28, 2015 2:58 PM
To: ofono(a)ofono.org
Subject: query

Hi All,

I am trying to get ofono running on my Intel Edison board.

We have Intel Arduino Board with Ublox Sara-G350 connected via ttyMFD1 device.


1.    Placed necessary configuration files at the needed places.

a.    Ofono.conf

b.    Tun.conf

c.    Ofono.rules

2.    Updated ofono.rules with the following,
# Ublox SARA-G350
ATTRS{idVendor}=="1546", ATTRS{idProduct}=="1102", ENV{OFONO_DRIVER}="ublox"

3.    tun.conf into modules-load.d, but when I do lsmod I do not see module tun being loaded !

4.    when I try running ofonod, I get struck at BT stuff as attached.

Please let me know if I am missing something.

Regards,
Ram.


[-- Attachment #2: attachment.html --]
[-- Type: text/html, Size: 14809 bytes --]

Re: query

[Denis Kenzior]

[-- Attachment #1: Type: text/plain, Size: 547 bytes --]

Hi Ram,

On 07/29/2015 08:12 AM, Kallumari Nagaraja Rao, RammohanX wrote:
> Hello All,
>
> As said below, I am using the Intel Edison board with a Ublox on a
> serial interface.
>
> After doing some debugging got to know that the
> “/plugins/udevng.c:enumerate_devices()” does get struck and
>
> nothing happens after that.

Since you have debug output after enumerate_devices() is called, this is 
highly unlikely.  Does your kernel support udev?  You need to get your 
kernel and system sorted out first.

Regards,
-Denis

Re: query

[Denis Kenzior]

[-- Attachment #1: Type: text/plain, Size: 953 bytes --]

Hi Ram,

On 07/28/2015 04:27 AM, Kallumari Nagaraja Rao, RammohanX wrote:
> Hi All,
>
> I am trying to get ofono running on my Intel Edison board.
>
> We have Intel Arduino Board with Ublox Sara-G350 connected via ttyMFD1
> device.
>
> 1.Placed necessary configuration files at the needed places.
>
> a.Ofono.conf
>
> b.Tun.conf
>
> c.Ofono.rules
>
> 2.Updated ofono.rules with the following,
>
> # Ublox SARA-G350
>
> ATTRS{idVendor}=="1546", ATTRS{idProduct}=="1102", ENV{OFONO_DRIVER}="ublox"
>

I don't know what this is doing, but in general ofono.rules is only used 
for pure-serial devices.  ublox driver is only setup to work via USB. 
Is your modem hardware USB based?

> 3.tun.conf into modules-load.d, but when I do lsmod I do not see module
> tun being loaded !
>
> 4.when I try running ofonod, I get struck at BT stuff as attached.
>
> Please let me know if I am missing something.
>

Regards,
-Denis

RE: query

[Kallumari]

[-- Attachment #1: Type: text/plain, Size: 1540 bytes --]

Hello Denis,

No our Ublox modem is serial based.
But I remember seeing in web that following will be used in case of a serial modem,

KERNEL=="ttyMFD1", ENV{OFONO_DRIVER}="ublox"

ttyMFD1 is the device uart port & ublox ofono driver.

Regards,
Ram.

-----Original Message-----
From: ofono [mailto:ofono-bounces(a)ofono.org] On Behalf Of Denis Kenzior
Sent: Wednesday, July 29, 2015 8:54 PM
To: ofono(a)ofono.org
Subject: Re: query

Hi Ram,

On 07/28/2015 04:27 AM, Kallumari Nagaraja Rao, RammohanX wrote:
> Hi All,
>
> I am trying to get ofono running on my Intel Edison board.
>
> We have Intel Arduino Board with Ublox Sara-G350 connected via ttyMFD1 
> device.
>
> 1.Placed necessary configuration files at the needed places.
>
> a.Ofono.conf
>
> b.Tun.conf
>
> c.Ofono.rules
>
> 2.Updated ofono.rules with the following,
>
> # Ublox SARA-G350
>
> ATTRS{idVendor}=="1546", ATTRS{idProduct}=="1102", ENV{OFONO_DRIVER}="ublox"
>

I don't know what this is doing, but in general ofono.rules is only used for pure-serial devices.  ublox driver is only setup to work via USB. 
Is your modem hardware USB based?

> 3.tun.conf into modules-load.d, but when I do lsmod I do not see 
> module tun being loaded !
>
> 4.when I try running ofonod, I get struck at BT stuff as attached.
>
> Please let me know if I am missing something.
>

Regards,
-Denis
_______________________________________________
ofono mailing list
ofono(a)ofono.org
https://lists.ofono.org/mailman/listinfo/ofono

RE: query

[Kallumari]

[-- Attachment #1: Type: text/plain, Size: 1416 bytes --]

Hi Denis,

Can't we use the existing ofono UBLOX driver to work with serial interfaces instead of USB interface ?

Regards,
Ram.


-----Original Message-----
From: ofono [mailto:ofono-bounces(a)ofono.org] On Behalf Of Denis Kenzior
Sent: Wednesday, July 29, 2015 8:54 PM
To: ofono(a)ofono.org
Subject: Re: query

Hi Ram,

On 07/28/2015 04:27 AM, Kallumari Nagaraja Rao, RammohanX wrote:
> Hi All,
>
> I am trying to get ofono running on my Intel Edison board.
>
> We have Intel Arduino Board with Ublox Sara-G350 connected via ttyMFD1 
> device.
>
> 1.Placed necessary configuration files at the needed places.
>
> a.Ofono.conf
>
> b.Tun.conf
>
> c.Ofono.rules
>
> 2.Updated ofono.rules with the following,
>
> # Ublox SARA-G350
>
> ATTRS{idVendor}=="1546", ATTRS{idProduct}=="1102", ENV{OFONO_DRIVER}="ublox"
>

I don't know what this is doing, but in general ofono.rules is only used for pure-serial devices.  ublox driver is only setup to work via USB. 
Is your modem hardware USB based?

> 3.tun.conf into modules-load.d, but when I do lsmod I do not see 
> module tun being loaded !
>
> 4.when I try running ofonod, I get struck at BT stuff as attached.
>
> Please let me know if I am missing something.
>

Regards,
-Denis
_______________________________________________
ofono mailing list
ofono(a)ofono.org
https://lists.ofono.org/mailman/listinfo/ofono

Re: query

[Denis Kenzior]

[-- Attachment #1: Type: text/plain, Size: 985 bytes --]

Hi Ram,

On 07/30/2015 07:49 AM, Kallumari Nagaraja Rao, RammohanX wrote:
> Hi Denis,
>
> Can't we use the existing ofono UBLOX driver to work with serial interfaces instead of USB interface ?
>

Not in its current form, no.

USB devices generally come pre-multiplexed.  What this means is that 
they expose multiple AT ports (e.g. ttyACM1, ttyACM2, etc).  oFono 
requires two if the modem uses PPP (which the ublox driver is currently 
using).  This is necessary as a second control port is needed for 
control while another is being occupied by PPP packets.

Serial devices use a single serial port and will require some form of 
multiplexing in order to enable properly.  Most support 07.10/27.010 
multiplexing via AT+CMUX.

Your options are to write a new modem driver for your device, or extend 
the ublox driver to handle serial devices.  Refer to plugins/ifx.c or 
plugins/calypso.c for an example of a driver that uses multiplexing.

Regards,
-Denis

query

[Anshul Kundra]

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To Developers ,
I have read about the new member named as xfs_extdelta that is passed in different xfs internal routines i.e xfs_bmapi , In the 2.4 versions instead of using it is just passed as NULL can anyone provide info regarding that where to initialize and if I pass it NULl then is there any adverse effect of it

XFS_IOCORE_RT  not been used in 2.6 version , so if instead of this flag I will pass XFS_IOCORE_EXCL it will be ok or will cause any crash or adverse effects or either there is any alternative present to sought out from these two problems

Regards
Anshul Kundra
HCL TECHNOLOGIES
ERS


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Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of
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Re: query

[Eric Sandeen]

On 1/11/12 9:51 AM, Anshul Kundra wrote:
> To Developers ,
> 
> I have read about the new member named as xfs_extdelta that is passed

Well, that "new" member was added in 2006 ;)

> in different xfs internal routines i.e xfs_bmapi , In the 2.4
> versions instead of using it is just passed as NULL can anyone
> provide info regarding that where to initialize and if I pass it NULl
> then is there any adverse effect of it
> 
> 
> 
> XFS_IOCORE_RT  not been used in 2.6 version , so if instead of this
> flag I will pass XFS_IOCORE_EXCL it will be ok or will cause any
> crash or adverse effects or either there is any alternative present
> to sought out from these two problems
> 

The 2.4 codebase was so long ago, I don't think you're going to be
able to make any direct translation from 2.6 code to 2.4.  Anyone
trying to maintain or modify 2.4-era xfs is going to be largely on
their own, I'm afraid, unless others have more time than I do to go
back and research this stuff...

-Eric

> 
> Regards
> 
> Anshul Kundra
> 
> HCL TECHNOLOGIES
> 
> ERS
> 
> 
> 
> 
> ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 
--
>
> 
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>  The contents of this e-mail and any attachment(s) are confidential
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> opinions presented in this email are solely those of the author and
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> Any form of reproduction, dissemination, copying, disclosure,
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> without the prior written consent of the author of this e-mail is
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> 
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> 
> 
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Query

[Anshul Kundra]

[-- Attachment #1.1: Type: text/plain, Size: 1645 bytes --]

To Developers ,
I have read about the new member named as xfs_extdelta that is passed in different xfs internal routines i.e xfs_bmapi , In the 2.4 versions instead of using it is just passed as NULL can anyone provide info regarding that where to initialize and if I pass it NULl then is there any adverse effect of it

XFS_IOCORE_RT  not been used in 2.6 version , so if instead of this flag I will pass XFS_IOCORE_EXCL it will be ok or will cause any crash or adverse effects or either there is any alternative present to sought out from these two problems

Regards
Anshul Kundra
HCL TECHNOLOGIES
ERS

________________________________
::DISCLAIMER::
-----------------------------------------------------------------------------------------------------------------------

The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only.
It shall not attach any liability on the originator or HCL or its affiliates. Any views or opinions presented in
this email are solely those of the author and may not necessarily reflect the opinions of HCL or its affiliates.
Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of
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received this email in error please delete it and notify the sender immediately. Before opening any mail and
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query

[Filip, Anotonov]

Dear Sirs,

Our company is proud to offer new Business Directories from Russia, Eastern and Western-European countries.

Also we offer a database with contact details of Russian billionaires.

You can find detailed information about our products at our web site.

Sincerely,

Filip, Anotonov,
Zakmedia, Russia.

Query

[snmp snmp]

Hi ,
     Me and my friends are working on a new concept.
     Idea is to run different kernels on different cores in a
multicore architecture. Each kernel is performing logically different
tasks. We believe to improve the cache performance and reduce cpu idle
time. This concept can be applied to filers , graphics processing
systems , embedded systems.
     Our implementation is on Intel core 2 duo machine. So far our
implementation includes running two kernels simultaneously (one on
each core) , handling hard-disk on one core and ethernet on another
core so as to divide the network and disk subsystem.

     But here we are unable to measure the performance. Can u please
suggest any method to measure the performance in terms of throughput
and response time?

     Thank you.

Re: Query

[snmp snmp]

Thanks for replying...
We are implementing it on a 2 core machine so we have two kernels
running...we have made changes in the grub code to load second kernel
image in memory and send start-up Inter Processor Interrupts to second
core and wake it from halted state...second core starts executing
second kernel code..and first kernel starts running on first core
after grub is done with it's operations.

We have made changes in kernel code to initialize different subsystems
on the two kernels. This includes changing the way in which interrupts
 are routed and also changing the listing of PCI devices. We have
reserved memory for both kernels and some memory is shared for
inter-kernel communication.

On Thu, Mar 17, 2011 at 6:41 AM, Tharindu Rukshan Bamunuarachchi
<btharindu@gmail.com> wrote:
> interesting idea ... how do you run multiple kernels in different cores ?
>
> u should hv changed most of kernel code.
> __
> Tharindu "R" Bamunuarachchi.
>
>
>
>
> On Wed, Mar 16, 2011 at 3:06 PM, snmp snmp <snmp.ml@gmail.com> wrote:
>> Hi ,
>>     Me and my friends are working on a new concept.
>>     Idea is to run different kernels on different cores in a
>> multicore architecture. Each kernel is performing logically different
>> tasks. We believe to improve the cache performance and reduce cpu idle
>> time. This concept can be applied to filers , graphics processing
>> systems , embedded systems.
>>     Our implementation is on Intel core 2 duo machine. So far our
>> implementation includes running two kernels simultaneously (one on
>> each core) , handling hard-disk on one core and ethernet on another
>> core so as to divide the network and disk subsystem.
>>
>>     But here we are unable to measure the performance. Can u please
>> suggest any method to measure the performance in terms of throughput
>> and response time?
>>
>>     Thank you.
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-numa" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>>
>

Query

[snmp snmp]

Hi ,
     Me and my friends are working on a new concept.
     Idea is to run different kernels on different cores in a
multicore architecture. Each kernel is performing logically different
tasks. We believe to improve the cache performance and reduce cpu idle
time. This concept can be applied to filers , graphics processing
systems , embedded systems.
     Our implementation is on Intel core 2 duo machine. So far our
implementation includes running two kernels simultaneously (one on
each core) , handling hard-disk on one core and ethernet on another
core so as to divide the network and disk subsystem.

     But here we are unable to measure the performance. Can u please
suggest any method to measure the performance in terms of throughput
and response time?

     Thank you.

Re: Query

[Alan Cox]

>      Me and my friends are working on a new concept.

It's not really new. Various systems have done this historically, and
folks including Larry McVoy have proposed that for large scalability you
might build a system out of multiple separate kernels one on each NUMA
node and which had interfaces to loan or share pages with one another by
bumping page counts and handling coherency.

Cool to see someone trying some of this in Linux

>      Our implementation is on Intel core 2 duo machine. So far our
> implementation includes running two kernels simultaneously (one on
> each core) , handling hard-disk on one core and ethernet on another
> core so as to divide the network and disk subsystem.
> 
>      But here we are unable to measure the performance. Can u please
> suggest any method to measure the performance in terms of throughput
> and response time?

There are a bunch of standard benchmarks you can use. A lot of the big
name ones need clusters of systems to do the loading but there are things
like dbench that are quite useful on single systems.

For some of the applications you are talking about I think dbench might
be a good start.


Alan

Re: Query

[snmp snmp]

Thanks a lot for replying and your suggestions.
Actually , we have implemented this on SMP architecture.
We are trying to measure the performance with the tool you have suggested.


On Wed, Mar 16, 2011 at 5:24 PM, Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
>>      Me and my friends are working on a new concept.
>
> It's not really new. Various systems have done this historically, and
> folks including Larry McVoy have proposed that for large scalability you
> might build a system out of multiple separate kernels one on each NUMA
> node and which had interfaces to loan or share pages with one another by
> bumping page counts and handling coherency.
>
> Cool to see someone trying some of this in Linux
>
>>      Our implementation is on Intel core 2 duo machine. So far our
>> implementation includes running two kernels simultaneously (one on
>> each core) , handling hard-disk on one core and ethernet on another
>> core so as to divide the network and disk subsystem.
>>
>>      But here we are unable to measure the performance. Can u please
>> suggest any method to measure the performance in terms of throughput
>> and response time?
>
> There are a bunch of standard benchmarks you can use. A lot of the big
> name ones need clusters of systems to do the loading but there are things
> like dbench that are quite useful on single systems.
>
> For some of the applications you are talking about I think dbench might
> be a good start.
>
>
> Alan
>

Query

[Vandana Vuthoo]

Hi,
I am a beginner to V4l2 domain, actually I want to know whether we can give
MPEG4 stream as an input to V4L2 driver and show it on the LCD Screen, the
platform being used is the Beagleboard.
Regards,
Vandana
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Unsubscribe mailto:video4linux-list-request@redhat.com?subject=unsubscribe
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Re: Query

[Adrian Pardini]

Hi Vandana,

this list is deprecated, please resend your message to
linux-media@vger.kernel.org.
For more information visit: http://vger.kernel.org/vger-lists.html#linux-media.

cheers.

On 22/05/2009, Vandana Vuthoo <vandana.vuthoo@gmail.com> wrote:
> Hi,
> I am a beginner to V4l2 domain, actually I want to know whether we can give
> MPEG4 stream as an input to V4L2 driver and show it on the LCD Screen, the
> platform being used is the Beagleboard.
> Regards,
> Vandana



-- 
Adrian.
http://ovejafm.com

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RE: query

[Nandedkar, Rishiraj]

Thank you very much



-----Original Message-----
From: Emmanuel Florac [mailto:eflorac@intellique.com] 
Sent: Friday, May 02, 2008 5:35 PM
To: Nandedkar, Rishiraj
Cc: xfs@oss.sgi.com
Subject: Re: query

Le Fri, 2 May 2008 16:12:58 +0530
"Nandedkar, Rishiraj" <Rishiraj.Nandedkar@cggveritas.com> écrivait:

> Thank you for update but Linux 7.3 means red hat 7 update 3 red hat 3
> update 5.In our system we are unable to detect disk which is having
> file system in XFS format. Our system is not able to support it.
> 2.4.21-32.EL is kenal version on our systems. Please let me know
> which version should I use in redhat.I am trying this with fedora
> core 3

RedHat 7.3 ( or even 8.0 and 9.0 for that matter) are really very old
and outdated. You'd be much better for pretty much everything with
something more up-to-date. Back then RedHat 7.x needed a special
additional CD provided by SGI for XFS support IIRC.
I'm pretty surprised that RHEL 3 doesn't support XFS though. Anyway,
RHEL 4 and 5 do without any doubt (I use XFS on them).

-- 
----------------------------------------
Emmanuel Florac     |   Intellique
----------------------------------------

Re: query

[Stefan Smietanowski]

Nandedkar, Rishiraj wrote:
> Thank you very much
> 
> 
> 
> -----Original Message-----
> From: Emmanuel Florac [mailto:eflorac@intellique.com] 
> Sent: Friday, May 02, 2008 5:35 PM
> To: Nandedkar, Rishiraj
> Cc: xfs@oss.sgi.com
> Subject: Re: query
> 
> Le Fri, 2 May 2008 16:12:58 +0530
> "Nandedkar, Rishiraj" <Rishiraj.Nandedkar@cggveritas.com> écrivait:
> 
>> Thank you for update but Linux 7.3 means red hat 7 update 3 red hat 3
>> update 5.In our system we are unable to detect disk which is having
>> file system in XFS format. Our system is not able to support it.
>> 2.4.21-32.EL is kenal version on our systems. Please let me know
>> which version should I use in redhat.I am trying this with fedora
>> core 3
> 
> RedHat 7.3 ( or even 8.0 and 9.0 for that matter) are really very old
> and outdated. You'd be much better for pretty much everything with
> something more up-to-date. Back then RedHat 7.x needed a special
> additional CD provided by SGI for XFS support IIRC.
> I'm pretty surprised that RHEL 3 doesn't support XFS though. Anyway,
> RHEL 4 and 5 do without any doubt (I use XFS on them).
> 

Another point could be that if you're used to and like RedHat Linux 7.3
and/or RedHat Enterprise Linux then I think looking at either the newer
RedHat Enterprise Linue (RHEL) 4 or 5 or Fedora is the way to go.

To use XFS in Fedora (http://www.fedoraproject.org) you need to add the
word "xfs" to the installer commandline and also make sure you use a
seperate, small (100MB is enough) partition that's called /boot that's
using ext3 (others work but I recommend using ext3 simply for that
partition).

// Stefan

Re: query

[Eric Sandeen]

Stefan Smietanowski wrote:

> To use XFS in Fedora (http://www.fedoraproject.org) you need to add the
> word "xfs" to the installer commandline

Only for F7 and earlier.  F8 and beyond give you an xfs option on the
partitioning screen by default.

-Eric

> 
> 

RE: query

[Nandedkar, Rishiraj]

Hi,

Thank you for update but Linux 7.3 means red hat 7 update 3 red hat 3 update 5.In our system we are unable to detect disk which is having file system in XFS format. Our system is not able to support it. 2.4.21-32.EL is kenal version on our systems. Please let me know which version should I use in redhat.I am trying this with fedora core 3

Thx 
rishi



-----Original Message-----
From: Emmanuel Florac [mailto:eflorac@intellique.com] 
Sent: Friday, May 02, 2008 4:06 PM
To: Nandedkar, Rishiraj
Cc: xfs@oss.sgi.com
Subject: Re: query

Le Fri, 2 May 2008 15:38:13 +0530
"Nandedkar, Rishiraj" <Rishiraj.Nandedkar@cggveritas.com> écrivait:

> I would like to know which Linux version support XFS file system. I am
> working on linux3.5 and 4.3 and 7.3 but all these versions not support
> XFS.

You are misleaded. There is no such thing as "linux 3.5" or "linux
7.3". Current Linux kernel version is 2.6.25. However there exists
hundreds of GNU/Linux distributions, with many different numbering
schemes, that may come with or without XFS support.

Some current common distributions : Debian GNU/Linux 4.0, SuSE Linux
Enterprise Server 10.0, RedHat Enterprise Linux 5.0...
See http://distrowatch.com/ to find about most of them.

Most distributions (except RedHat Enterprise and SuSE Enterprise) may
be downloaded (and used) for free. Don't stick with an outdated one!

As far as I know, all distributions less than 5 years old should
support XFS natively. So either you use some very old distribution
(like RedHat Linux 7.3, which is antique), or you didn't looked for the
right thing at the right place.


-- 
----------------------------------------
Emmanuel Florac     |   Intellique
----------------------------------------

Re: query

[Emmanuel Florac]

Le Fri, 2 May 2008 16:12:58 +0530
"Nandedkar, Rishiraj" <Rishiraj.Nandedkar@cggveritas.com> écrivait:

> Thank you for update but Linux 7.3 means red hat 7 update 3 red hat 3
> update 5.In our system we are unable to detect disk which is having
> file system in XFS format. Our system is not able to support it.
> 2.4.21-32.EL is kenal version on our systems. Please let me know
> which version should I use in redhat.I am trying this with fedora
> core 3

RedHat 7.3 ( or even 8.0 and 9.0 for that matter) are really very old
and outdated. You'd be much better for pretty much everything with
something more up-to-date. Back then RedHat 7.x needed a special
additional CD provided by SGI for XFS support IIRC.
I'm pretty surprised that RHEL 3 doesn't support XFS though. Anyway,
RHEL 4 and 5 do without any doubt (I use XFS on them).

-- 
----------------------------------------
Emmanuel Florac     |   Intellique
----------------------------------------

Re: query

[Emmanuel Florac]

Le Fri, 2 May 2008 16:12:58 +0530
"Nandedkar, Rishiraj" <Rishiraj.Nandedkar@cggveritas.com> écrivait:

> In our system we are unable to detect disk which is having file
> system in XFS format. Our system is not able to support it.

Just to get sure, how did you try to mount the XFS disks? Is there a
software RAID, LVM or other additional layer that may prevent an older
system to mount a volume made on a newer one?

-- 
----------------------------------------
Emmanuel Florac     |   Intellique
----------------------------------------

query

[Nandedkar, Rishiraj]

Hi,

 

I would like to know which Linux version support XFS file system. I am
working on linux3.5 and 4.3 and 7.3 but all these versions not support
XFS.

Please let me know which Linux version supports xfs and where can I get
this versions

Thanks in advance

 

Thx & Regards

Rishi Nandedkar

It support

CGGVERITAS

 



[[HTML alternate version deleted]]

Re: query

[Emmanuel Florac]

Le Fri, 2 May 2008 15:38:13 +0530
"Nandedkar, Rishiraj" <Rishiraj.Nandedkar@cggveritas.com> écrivait:

> I would like to know which Linux version support XFS file system. I am
> working on linux3.5 and 4.3 and 7.3 but all these versions not support
> XFS.

You are misleaded. There is no such thing as "linux 3.5" or "linux
7.3". Current Linux kernel version is 2.6.25. However there exists
hundreds of GNU/Linux distributions, with many different numbering
schemes, that may come with or without XFS support.

Some current common distributions : Debian GNU/Linux 4.0, SuSE Linux
Enterprise Server 10.0, RedHat Enterprise Linux 5.0...
See http://distrowatch.com/ to find about most of them.

Most distributions (except RedHat Enterprise and SuSE Enterprise) may
be downloaded (and used) for free. Don't stick with an outdated one!

As far as I know, all distributions less than 5 years old should
support XFS natively. So either you use some very old distribution
(like RedHat Linux 7.3, which is antique), or you didn't looked for the
right thing at the right place.


-- 
----------------------------------------
Emmanuel Florac     |   Intellique
----------------------------------------

Re: query

[Andi Kleen]

Emmanuel Florac <eflorac@intellique.com> writes:
>
> Most distributions (except RedHat Enterprise and SuSE Enterprise) may

OT, but actually that's not correct. You can download SLES for free.

-Andi

query

[Chandrashekhar]

[-- Attachment #1: Type: text/plain, Size: 300 bytes --]

Hi,

 

I am Chandrashekhar, I writing one application, in which wanted to access
non-windows drive, which will be imported through NFS, can you please
explain me is there any library or any other way I can access data from
non-dos partition drive.

Thanks in advance.

 

Regards,

Chandrashekhar.


[-- Attachment #2: Type: text/html, Size: 2151 bytes --]

Query

[aparna misri]

hello,
  I am doing a small project in networking.I read
somewhere that I can use iptables to capture network
data.I want to capture IP packets so that I can
compress it and then send it to the receiver.Receiver
decompresses it at its side.Is it possible to do it
with iptables?

Aparna.


		
__________________________________________________________ 
Yahoo! India Matrimony: Find your partner now. Go to http://yahoo.shaadi.com

Re: Query

[Rob Sterenborg]

On Fri, February 10, 2006 05:35, aparna misri wrote:
> hello,
>   I am doing a small project in networking.I read
> somewhere that I can use iptables to capture network
> data.I want to capture IP packets so that I can
> compress it and then send it to the receiver.Receiver
> decompresses it at its side.Is it possible to do it
> with iptables?

I'd capture it with tcpdump, ethereal or something like that. These are packet
sniffers, iptables is not. I'm not sure if iptables can capture (and log) all
packets just like a sniffer can.


Gr,
Rob

RE: Query

[Pablo Sanchez]

> -----Original Message-----
> From: netfilter-bounces@lists.netfilter.org
> [mailto:netfilter-bounces@lists.netfilter.org]On Behalf Of Rob
> Sterenborg
> Sent: Friday, February 10, 2006 8:31 AM
> To: netfilter@lists.netfilter.org
> Subject: Re: Query
> 
> 
> I'm not sure if iptables can capture 
> (and log) all
> packets just like a sniffer can.

You're right Rob, iptables cannot capture all the packets like a sniffer.  iptables is Layer 3 so you'd miss anything below.  For example, if you wanted to capture PPPoE packets (PADI, PADO, etc), you'd miss them with iptables.

Cheers,
-pablo

Re: Query

[David Vogt]

Hi,

iptables provides facilites to queue packets that traverse the kernel
to a user space application. You can specify rules that define which
packets are sent to user space. Furthermore, you can modify packet
data to be reinjected into the kernel.

I would suggest reading the manpage of libipq, providing a simple API
to receive the packets. A very simple example application can be found
there as well.
As to reinjection, read the ipq_set_verdict man page.
Hope that helps a little bit.

David

2006/2/10, Rob Sterenborg <rob@sterenborg.info>:
> On Fri, February 10, 2006 05:35, aparna misri wrote:
> > hello,
> >   I am doing a small project in networking.I read
> > somewhere that I can use iptables to capture network
> > data.I want to capture IP packets so that I can
> > compress it and then send it to the receiver.Receiver
> > decompresses it at its side.Is it possible to do it
> > with iptables?
>
> I'd capture it with tcpdump, ethereal or something like that. These are packet
> sniffers, iptables is not. I'm not sure if iptables can capture (and log) all
> packets just like a sniffer can.
>
>
> Gr,
> Rob
>
>
>
>

Re: Query

[Rob Sterenborg]

On Fri, February 10, 2006 14:46, David Vogt wrote:
> Hi,
>
> iptables provides facilites to queue packets that traverse the kernel
> to a user space application. You can specify rules that define which
> packets are sent to user space. Furthermore, you can modify packet
> data to be reinjected into the kernel.
>
> I would suggest reading the manpage of libipq, providing a simple API
> to receive the packets. A very simple example application can be found
> there as well.
> As to reinjection, read the ipq_set_verdict man page.
> Hope that helps a little bit.

Yes, but still : can you give me a reason why I would use
iptables/netfilter/libipq to sniff and log packets when I can do it with
tcpdump or something ?
The OP says <quote>I want to capture IP packets so that I can compress it and
then send it to the receiver</quote>. If he just wants to capture packets, it
seems to me that using iptables for this is a bit more difficult.


Gr,
Rob

Re: Query

[David Vogt]

2006/2/10, Rob Sterenborg <rob@sterenborg.info>:
> On Fri, February 10, 2006 14:46, David Vogt wrote:
> > Hi,
> >
> > iptables provides facilites to queue packets that traverse the kernel
> > to a user space application. You can specify rules that define which
> > packets are sent to user space. Furthermore, you can modify packet
> > data to be reinjected into the kernel.
> >
> > I would suggest reading the manpage of libipq, providing a simple API
> > to receive the packets. A very simple example application can be found
> > there as well.
> > As to reinjection, read the ipq_set_verdict man page.
> > Hope that helps a little bit.
>
> Yes, but still : can you give me a reason why I would use
> iptables/netfilter/libipq to sniff and log packets when I can do it with
> tcpdump or something ?
> The OP says <quote>I want to capture IP packets so that I can compress it and
> then send it to the receiver</quote>. If he just wants to capture packets, it
> seems to me that using iptables for this is a bit more difficult.
>

As far as I understood he wants to modify the packets and reinject
them. Is this possible with pcdump and ethereal as well? I thought
they were ... read-only?
On the other hand ... if he takes care of the communication of the
packets in any other way (socket or whatever), libipq would not by my
first choice either.

David

David

Re: Query

[Rob Sterenborg]

On Fri, February 10, 2006 15:05, David Vogt wrote:
> 2006/2/10, Rob Sterenborg <rob@sterenborg.info>:
>> Yes, but still : can you give me a reason why I would use
>> iptables/netfilter/libipq to sniff and log packets when I can do it with
>> tcpdump or something ?
>> The OP says <quote>I want to capture IP packets so that I can compress it
>> and
>> then send it to the receiver</quote>. If he just wants to capture packets,
>> it
>> seems to me that using iptables for this is a bit more difficult.
>>
>
> As far as I understood he wants to modify the packets and reinject
> them. Is this possible with pcdump and ethereal as well? I thought
> they were ... read-only?
> On the other hand ... if he takes care of the communication of the
> packets in any other way (socket or whatever), libipq would not by my
> first choice either.

<quote>
I want to capture IP packets so that I can compress it and then send
it to the receiver. Receiver decompresses it at its side. Is it
possible to do it with iptables?
</quote>

What I understand is that he wants to send (not specified how) packet logs to
somebody who can process those (also not specified how).

Oh well, the OP can choose ;-)


Gr,
Rob

query...

[raja]

   Hi,
      I am Creating a posix message queue using the following code.


#include <stdio.h>
#include <stdlib.h>
#include <mqueue.h>
#include <errno.h>
#include <string.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>

int main(int argc,char *argv[])
{
    mqd_t mq_des;
    mq_des = mq_open(argv[1],O_CREAT | O_RDWR | O_EXCL,S_IRUSR | S_IWUSR 
| S_IRGRP | S_IROTH , NULL);
    if(mq_des < 0)
    {
        printf("Unable To Create MsgQ\n");
        perror("mq_open");
        return mq_des;
    }
    printf("MsgQ is Opened With Descriptor : %d\n",mq_des);
    return mq_des;
}


and I after compiling I am giving

./a.out /root/Desktop/msgq1


But It is giving as unable to create message queue and showing error as
'permission denied'

Would you please help me.

Re: query...

[Nikhil Dharashivkar]

I think it could be root permissions problem. Are you running this
binary as root user ?


On 8/9/05, raja <vnagaraju@effigent.net> wrote:
>    Hi,
>       I am Creating a posix message queue using the following code.
> 
> 
> #include <stdio.h>
> #include <stdlib.h>
> #include <mqueue.h>
> #include <errno.h>
> #include <string.h>
> #include <fcntl.h>
> #include <sys/stat.h>
> #include <sys/types.h>
> 
> int main(int argc,char *argv[])
> {
>     mqd_t mq_des;
>     mq_des = mq_open(argv[1],O_CREAT | O_RDWR | O_EXCL,S_IRUSR | S_IWUSR
> | S_IRGRP | S_IROTH , NULL);
>     if(mq_des < 0)
>     {
>         printf("Unable To Create MsgQ\n");
>         perror("mq_open");
>         return mq_des;
>     }
>     printf("MsgQ is Opened With Descriptor : %d\n",mq_des);
>     return mq_des;
> }
> 
> 
> and I after compiling I am giving
> 
> ./a.out /root/Desktop/msgq1
> 
> 
> But It is giving as unable to create message queue and showing error as
> 'permission denied'
> 
> Would you please help me.
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/
> 


-- 
Thanks and Regards,
         Nikhil.

RE: query...

[Sudheer]

First -> you hit the wrong ML
Second -> The message queue exists and the permissions specified by
oflag are denied, or the message queue does not exist and permission to
create the message queue is denied


-----Original Message-----
From: linux-kernel-owner@vger.kernel.org
[mailto:linux-kernel-owner@vger.kernel.org] On Behalf Of raja
Sent: Tuesday, August 09, 2005 3:59 PM
To: linux-kernel@vger.kernel.org
Subject: query...

   Hi,
      I am Creating a posix message queue using the following code.


#include <stdio.h>
#include <stdlib.h>
#include <mqueue.h>
#include <errno.h>
#include <string.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>

int main(int argc,char *argv[])
{
    mqd_t mq_des;
    mq_des = mq_open(argv[1],O_CREAT | O_RDWR | O_EXCL,S_IRUSR | S_IWUSR

| S_IRGRP | S_IROTH , NULL);
    if(mq_des < 0)
    {
        printf("Unable To Create MsgQ\n");
        perror("mq_open");
        return mq_des;
    }
    printf("MsgQ is Opened With Descriptor : %d\n",mq_des);
    return mq_des;
}


and I after compiling I am giving

./a.out /root/Desktop/msgq1


But It is giving as unable to create message queue and showing error as
'permission denied'

Would you please help me.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel"
in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Query

[Ashwin Nayak]

Hi,
	What I would like to know is how you guys can tell at which address
which hardware is located. Like you guys say that the pll is at address
0x69 etc.How can I tell if the device that I am looking for is at a
particular address.

Ashwin

Query

[Jean Delvare]

> What I would like to know is how you guys can tell at which address
> which hardware is located. Like you guys say that the pll is at
> address 0x69 etc.How can I tell if the device that I am looking for is
> at a particular address.

Use our sensors-detect script. If it fails detecting what you are
looking for, use i2cdetect to list your i2c busses, then use i2cdump on
each of the addresses to see the "contents" of each chip. If you have an
idea of what you're after (e.g. register X contains manufacturer ID Y)
you should be able to locate it.

If the identification is of general interest, let us know, so that we
may update sensors-detect. You can also send us a patch directly :)

-- 
Jean Delvare
http://www.ensicaen.ismra.fr/~delvare/

Query

[Philip Edelbrock]

First, you can scan the bus to see which addresses have devices which 
respond to an I2C command.

The datasheets show what possible addresses a device can be configured 
to be located at.  Also, blocks of addresses usually are used by certain 
types of chips (like 0x50-0x5F and 0x30-0x3F are usually eeproms, 0x2D 
is usually a system hardware monitoring chip, 0x69 is usually a clocking 
chip, etc.)

To confirm the identity, we do some specific query (again as specified 
by the datasheet) which can be used as a test.  For example, some chips 
have specific registers which will always contain some specific values 
to identify things like vendor, chip ID, and die rev.

So, if you are looking for a specific device and want to see if it is at 
a particular address, you'll have to try to communicate with it as per 
the datasheet to see if it responds in a way that you would expect.

Unfortunately, there is no clear cut way of knowing what a chip is 
before talking with it (unlike other bus protocols, like PCI).

Does this help?


Phil

Ashwin Nayak wrote:

>Hi,
>	What I would like to know is how you guys can tell at which address
>which hardware is located. Like you guys say that the pll is at address
>0x69 etc.How can I tell if the device that I am looking for is at a
>particular address.
>
>Ashwin
>
>
>
>  
>

Query

[Rudresh NB]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset=us-ascii, Size: 412 bytes --]

Hi All,
       Iam using samsung Nand flash (k9f2g08u0m). In
that there is restriction of random page program. I
heard that jffs2 takes care. but iam unable to find
where exactly (In which file ) it is taken care. 
Brief explanation is appreciated.

Thanx in advance

Rgds
NBR



		
__________________________________ 
Do you Yahoo!? 
All your favorites on one personal page – Try My Yahoo!
http://my.yahoo.com 

Re: Query

[Artem B. Bityuckiy]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: TEXT/PLAIN; charset=X-UNKNOWN, Size: 927 bytes --]

On Tue, 21 Dec 2004, Rudresh NB wrote:

> Hi All,
>        Iam using samsung Nand flash (k9f2g08u0m). In
> that there is restriction of random page program. I
> heard that jffs2 takes care. but iam unable to find
> where exactly (In which file ) it is taken care. 
> Brief explanation is appreciated.
> 
> Thanx in advance
Hi.

JFFS2 uses a buffer (wbuf) of size = NAND page size and accomulates all 
the writes there. When the buffer become full, it flushes it to the 
correspondent NAND page. See wbuf.c.
 
> Rgds
> NBR
> 
> 
> 
> 		
> __________________________________ 
> Do you Yahoo!? 
> All your favorites on one personal page – Try My Yahoo!
> http://my.yahoo.com 
> 
> ______________________________________________________
> Linux MTD discussion mailing list
> http://lists.infradead.org/mailman/listinfo/linux-mtd/
> 

--
Best Regards,
Artem B. Bityuckiy,
St.-Petersburg, Russia.

Re: Query

[Estelle HAMMACHE]

Hi,
JFFS2 write pages sequentially from the start of an erase
block to the end of the block. The current
write block is in c->nextblock. The current write offset
in this block is c->nextblock->offset.
There is a write buffer (see file wbuf.c) to ensure that 
only full pages are written, even though data nodes may
overlap a page boundary. 
Data nodes may not overlap an erase block boundary: if there 
is no more room in the current block, a new (empty) block
is selected (and the page buffer is flushed in the old block
previously to writing to the new block). The new block
selection and the write address selection happen in 
nodemgmt.c (jffs2_do_reserve_space).
Does this answer your question ?
Estelle

Rudresh NB wrote:
> 
> Hi All,
>        Iam using samsung Nand flash (k9f2g08u0m). In
> that there is restriction of random page program. I
> heard that jffs2 takes care. but iam unable to find
> where exactly (In which file ) it is taken care.
> Brief explanation is appreciated.
> 
> Thanx in advance
> 
> Rgds
> NBR

Re: Query

[Rudresh NB]

Hi,
    Thanx for the reply.

I have couple of questions.

1) How JFFS2 will take care of Updating the same page
in the block.
2) How does the logical addr to physical addr of block
 no happens

Rgds
NBR

--- Estelle HAMMACHE <estelle.hammache@st.com> wrote:

> Hi,
> JFFS2 write pages sequentially from the start of an
> erase
> block to the end of the block. The current
> write block is in c->nextblock. The current write
> offset
> in this block is c->nextblock->offset.
> There is a write buffer (see file wbuf.c) to ensure
> that 
> only full pages are written, even though data nodes
> may
> overlap a page boundary. 
> Data nodes may not overlap an erase block boundary:
> if there 
> is no more room in the current block, a new (empty)
> block
> is selected (and the page buffer is flushed in the
> old block
> previously to writing to the new block). The new
> block
> selection and the write address selection happen in 
> nodemgmt.c (jffs2_do_reserve_space).
> Does this answer your question ?
> Estelle
> 
> Rudresh NB wrote:
> > 
> > Hi All,
> >        Iam using samsung Nand flash (k9f2g08u0m).
> In
> > that there is restriction of random page program.
> I
> > heard that jffs2 takes care. but iam unable to
> find
> > where exactly (In which file ) it is taken care.
> > Brief explanation is appreciated.
> > 
> > Thanx in advance
> > 
> > Rgds
> > NBR
> 



		
__________________________________ 
Do you Yahoo!? 
Yahoo! Mail - 250MB free storage. Do more. Manage less. 
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Re: Query

[Estelle HAMMACHE]

Rudresh NB wrote:
> 
> Hi,
>     Thanx for the reply.
> 
> I have couple of questions.
> 
> 1) How JFFS2 will take care of Updating the same page
> in the block.

JFFS2 will not _update_ a NAND Flash page. When the user
overwrites a file with new data, JFFS2 will NOT update the
previous data. Rather JFFS2 will write the new data at
another free place, increasing the version number. The
old data which is not needed anymore will disappear during
garbage collection. JFFS2 does not write twice to the same
physical page, unless the block was erased in the meantime.
I suggest that you read http://sources.redhat.com/jffs2/jffs2.pdf 
if you haven't already.

> 2) How does the logical addr to physical addr of block
>  no happens

JFFS2 is NOT an FTL. There are no logical block numbers
in JFFS2. I think the block adresses are relative to the
start of the partition, this is managed in mtd drivers (?).

bye
Estelle



> --- Estelle Hammache wrote:
> 
> > Hi,
> > JFFS2 write pages sequentially from the start of an
> > erase
> > block to the end of the block. The current
> > write block is in c->nextblock. The current write
> > offset
> > in this block is c->nextblock->offset.
> > There is a write buffer (see file wbuf.c) to ensure
> > that
> > only full pages are written, even though data nodes
> > may
> > overlap a page boundary.
> > Data nodes may not overlap an erase block boundary:
> > if there
> > is no more room in the current block, a new (empty)
> > block
> > is selected (and the page buffer is flushed in the
> > old block
> > previously to writing to the new block). The new
> > block
> > selection and the write address selection happen in
> > nodemgmt.c (jffs2_do_reserve_space).
> > Does this answer your question ?
> > Estelle
> >
> > Rudresh NB wrote:
> > >
> > > Hi All,
> > >        Iam using samsung Nand flash (k9f2g08u0m).
> > In
> > > that there is restriction of random page program.
> > I
> > > heard that jffs2 takes care. but iam unable to
> > find
> > > where exactly (In which file ) it is taken care.
> > > Brief explanation is appreciated.
> > >
> > > Thanx in advance
> > >
> > > Rgds
> > > NBR

query

[Manish RATHI]

Hi,
I am newbee in linux.
i've to write a nand flash driver for a Soc which is using ARM as core so that soc can boot from nand flash rather than ram based file system(initrd).

i need to write a nand flash driver. As far as i understand nand driver will be layer interacting with nand fLASH.
Above it there will be mtd layer and above it there will be file system.

Mtd layer is already available in linux. Can somebody suggest me good literature to understand it and nand based flash driver.?

I'd like to know how will be flow from user application to layer.
Will these primitives be same like open, close, read, write, lseek,
ioctl or some additional will be needed.

will boot block be in flash? Does kernel read by flash using open and write?

Pls also tell me relevant information sites.

Thanks
Regards
Manish

RE: query

[Lever, Charles]

hi-

what trond says is true, and i'd like to supplement that
idea by saying that the types of workloads where the BKL
would be a bottleneck are rare these days, compared to
the problems more common workloads experience, so it has
been a lower priority.

i think as database on NFS becomes more popular, for example,
this issue will become more important.

> -----Original Message-----
> From: Trond Myklebust [mailto:trond.myklebust@fys.uio.no]
> Sent: Wednesday, October 22, 2003 9:46 AM
> To: Sundareswar Jayakumar
> Cc: nfs@lists.sourceforge.net
> Subject: Re: [NFS] query
>=20
>=20
> >>>>> " " =3D=3D Sundareswar Jayakumar <sundar@cdacb.ernet.in> writes:
>=20
>      > Hi,
>      > 	I am working on adistributed filesytem on=20
> linux.I am using
>      > nfs source code as a learning resource.I require a
>      > clarification.
>=20
>=20
>      > In many entry points the Big Kernel Lock lock/unlock_kernel is
>      > used instead of locking just the private data structures of the
>      > filesystem.why is it so?.kindly clarify w.r.t to a smp m/c.
>=20
> When working on performance, you pursue the largest sources of latency
> first...
> BKL contention has not yet turned up on the radar screen. There has
> therefore not yet been enough incentive to replace it as a mechanism
> for serialization.
>=20
> Cheers,
>   Trond
>=20
>=20
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>=20


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query

[Sundareswar Jayakumar]

Hi,
	I am working on adistributed filesytem on linux.I am using
nfs source code as a learning resource.I require a clarification.


In many entry points the Big Kernel Lock lock/unlock_kernel is
used instead of locking just the private data structures of the
filesystem.why is it so?.kindly clarify w.r.t to a smp m/c.

Thanks
sundar


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Re: query

[Neil Brown]

On Tuesday October 21, sundar@cdacb.ernet.in wrote:
> Hi,
> 	I am working on adistributed filesytem on linux.I am using
> nfs source code as a learning resource.I require a clarification.
> 
> 
> In many entry points the Big Kernel Lock lock/unlock_kernel is
> used instead of locking just the private data structures of the
> filesystem.why is it so?.kindly clarify w.r.t to a smp m/c.

Because tghe BKL was the easiest way to make it work under SMP, and
the process of refining the locks hasn't made it into 2.4.

The 2.6.0 kernel does not use the BKL for nfsd at all, and I have
patches that remove the BKL for 2.4 but marcelo didn't want them when
I offered them some months ago, and I haven't offered again since.

NeilBrown

> 
> Thanks
> sundar
> 
> 
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Re: query

[Trond Myklebust]

>>>>> " " == Sundareswar Jayakumar <sundar@cdacb.ernet.in> writes:

     > Hi,
     > 	I am working on adistributed filesytem on linux.I am using
     > nfs source code as a learning resource.I require a
     > clarification.


     > In many entry points the Big Kernel Lock lock/unlock_kernel is
     > used instead of locking just the private data structures of the
     > filesystem.why is it so?.kindly clarify w.r.t to a smp m/c.

When working on performance, you pursue the largest sources of latency
first...
BKL contention has not yet turned up on the radar screen. There has
therefore not yet been enough incentive to replace it as a mechanism
for serialization.

Cheers,
  Trond


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Re: cross-compiler and stdarg.h

[Steven Scholz]

Hollis Blanchard wrote:
>
> On Thu, 10 Oct 2002, D'Abbraccio Joe-ljd015 wrote:
> >
> > When I build the kernel using the ELDK I get the following failure:
> > >>>>>
> > ppc_82xx-gcc -D__KERNEL__ -I/usr/opt/kernels/linuxppc_2_4_devel/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-strict-aliasing -fno-common -fomit-frame-pointer -I/usr/opt/kernels/linuxppc_2_4_devel/arch/ppc -fsigned-char -msoft-float -pipe -ffixed-r2 -Wno-uninitialized -mmultiple -mstring   -nostdinc -iwithprefix include -DKBUILD_BASENAME=sched  -fno-omit-frame-pointer -c -o sched.o sched.c
> > In file included from /usr/opt/kernels/linuxppc_2_4_devel/include/linux/wait.h:13,
> >                  from /usr/opt/kernels/linuxppc_2_4_devel/include/linux/fs.h:12,
> >                  from /usr/opt/kernels/linuxppc_2_4_devel/include/linux/capability.h:17,
> >                  from /usr/opt/kernels/linuxppc_2_4_devel/include/linux/binfmts.h:5,
> >                  from /usr/opt/kernels/linuxppc_2_4_devel/include/linux/sched.h:9,
> >                  from /usr/opt/kernels/linuxppc_2_4_devel/include/linux/mm.h:4,
> >                  from sched.c:23:
> > /usr/opt/kernels/linuxppc_2_4_devel/include/linux/kernel.h:10: stdarg.h: No such file or directory
> > <<<<<
> >
> > Where is stdarg.h expected to come from if not from stdinc (i.e.
> > -nostdinc).  I don't believe there is one in kernel distribution.
>
> I just had this problem and I'm embarassed to say I'm not quite sure
> what caused it. I was building on a ppc64 box, but when I switched from
> the ppc32 "cross-compiler" to the native toolchain (which is ppc32) the
> problem went away.
>
> Your cross-compiler includes this file in
> <prefix>/lib/gcc-lib/powerpc-linux/<version>/include/ .
>
> -Hollis

I had this problem too. A while ago. On 2002/09/13 I posted to this list but
with no success.

I found the problem in the main Makefile:

---------------
@@ -261,7 +262,7 @@
 # 'kbuild_2_4_nostdinc :=' or -I/usr/include for kernel code and you are not
UML
 # then your code is broken!  KAO.

-kbuild_2_4_nostdinc    := -nostdinc -iwithprefix include
+kbuild_2_4_nostdinc    := -nostdinc $(shell $(CC) -print-search-dirs | sed -ne
's/install: \(.*\)/-I \1include/gp')
 export kbuild_2_4_nostdinc

 export CPPFLAGS CFLAGS CFLAGS_KERNEL AFLAGS AFLAGS_KERNEL
---------------

I have no idea why... :o(

Cheers,

Steven

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Query

[Anish]

Hi,
Can anybody direct me for and SMC UART device driver for Linux.
anish nema


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Re: Query

[Wolfgang Denk]

In message <Pine.OSF.4.21.0210111618230.16143-100000@ws9.cdotb.ernet.in> you wrote:
>
> Can anybody direct me for and SMC UART device driver for Linux.

What's wrong with arch/ppc/8xx_io/uart.c and  arch/ppc/8260_io/uart.c ?

Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
I had the rare misfortune of being one of the first people to try and
implement a PL/1 compiler.                             -- T. Cheatham

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Query

[Hammad Qureshi]

[-- Attachment #1: Type: text/plain, Size: 472 bytes --]

Hello !!! All the nice people out there....


I am new on the list and I need some queries answered here about the ALSA.

I am trying to develop an application that can record multiple channels i.e. about 8. I have looked into a few API's but have not found anything promising. I have a card that can record 8 channels. I need help here. 

I also want to know of a good site where I can get some documentation on ALSA.

Please reply to this mail...


Hammad.

[-- Attachment #2: Type: text/html, Size: 1121 bytes --]

Re: Query

[Paul Davis]

1) just a quick note to point out that whether you know it or not, the
email program you are using is sending out copies of your mail in both
plain text and HTML formats. increasingly on the net, there are
filters being put in place that silently dump HTML-formatted
email. some mailing lists will not ever accept such posts. as long as
you do this, you are (1) wasting network bandwidth by sending messages
that are typically more than twice as long as they could be (2) making
it harder for people using traditional email readers to read them (3)
risking the chance that people will never see your mail because its
filtered before reaching their email inbox.

>I am new on the list and I need some queries answered here about the =
>ALSA.
>
>I am trying to develop an application that can record multiple channels =
>i.e. about 8. I have looked into a few API's but have not found anything =
>promising. I have a card that can record 8 channels. I need help here.=20

see http://ardour.sf.net/
alternatively, check out ecasound at http://www.eca.cx

>I also want to know of a good site where I can get some documentation on =
>ALSA.

There are none at this time.

--p

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query

[Chanchal Chawla]

Hi All,
  
    i'm writing a file system code, i've a query regarding that, i want you
to help me out if possible, 
  
    is it possible to get the absolute mount point of a device at run time
in that code ? if it is possible then how we can get it ?

    i'll be thankful.
   
Regards
Chanchal

Re: query

[Andreas Dilger]

Chanchal Chawla writes:
>     i'm writing a file system code, i've a query regarding that, i want you
> to help me out if possible, 
>   
>     is it possible to get the absolute mount point of a device at run time
> in that code ? if it is possible then how we can get it ?

It was possible in 2.2 with a minor hack.  I did it by passing mountpoint
dentry via sb->s_root to filesystem, and using d_path() to do the path
lookup inside the filesystem.  s_root is overwritten by the filesystem
to hold the new fs root dentry, so you need to get the path and store it
elsewhere before s_root is overwritten.

In 2.4 I was trying to get Al Viro to tell me the best way to do this, but
because it is _possible_ to mount a filesystem multiple times under 2.4 it
raises a question about which mountpoint you should use.  In 2.4 you need
to supply an additional vfsmnt parameter to d_path(), and I never did get
an answer out of Al as to how to get a vfsmnt inside the filesystem, even
if there is only one mount of the filesystem.

Cheers, Andreas
-- 
Andreas Dilger  \ "If a man ate a pound of pasta and a pound of antipasto,
                 \  would they cancel out, leaving him still hungry?"
http://www-mddsp.enel.ucalgary.ca/People/adilger/               -- Dogbert