Re: [Bluez-users] Bluez BNEP connection close

Re: [Bluez-users] Bluez BNEP connection close

[Marcel Holtmann]

Hi George,

> I'm facing a problem using the Bluez stack for linux and I don't know the 
> reason and how to solve it.
> I'm using the PAN environment, using the BNEP over L2CAP. I'm using kernel 
> 2.4.28-mh1 and bluez-libs-2.10 and bluez-utils-2.10.
> 
> I manage to get both devices connected and running a ping over it. However 
> when I do some web browsing a problem appear (also if doing an FTP or 
> whatever thing).
> When the amount of traffic through the connection increase, the connection 
> shut down without any reason.
> 
> Any idea of why when stressing the connection by transferring big amount of 
> data it closes.

check the syslog or dmesg for any error messages when this happens. I
never had problems with big amount of data over BNEP. Btw about how much
data are we talking?

Regards

Marcel




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[Bluez-users] Bluez BNEP connection close

[George]

Hi all.

I'm facing a problem using the Bluez stack for linux and I don't know the 
reason and how to solve it.
I'm using the PAN environment, using the BNEP over L2CAP. I'm using kernel 
2.4.28-mh1 and bluez-libs-2.10 and bluez-utils-2.10.

I manage to get both devices connected and running a ping over it. However 
when I do some web browsing a problem appear (also if doing an FTP or 
whatever thing).
When the amount of traffic through the connection increase, the connection 
shut down without any reason.

Any idea of why when stressing the connection by transferring big amount of 
data it closes.


TA.




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Re: [Bluez-users] Bluez BNEP connection close

[Michal Semler]

Send us your code (you used GPL code :)) and maybe we'll find way to fix it.

Michal

Dne po 24. ledna 2005 17:46 George napsal(a):
> Hello.
>
> The fact is that I have copy pand code to automate them into my
> application. My application makes a bridge in order to communicate WIFI and
> BlueTooth.
>
> The traffic is not too much.. when I run a ping -s 50000 it crashes and
> hangs. The result is that some packets are transmitted correctly while
> others doesn't.
> The bnep0 connection disappears and then both ends are no more connected.
>
> After happening all that things I have to restart everything as the sdpd
> and also the bluetooth devices on both ends are hanged.
>
> For giving more information, one of the ends is a Sharp Zaurus 5500 and the
> other is a Laptop using and AnyCom usb dongle
>
> By having a look at /var/log/messages I have one messge that is:
>
> Kernel: NETDED WATCHDOG: bnep0: transmit timed out
>
> and also in other parts
>
> Jan 24 17:14:35 kernel: hci_acl_tx_to: hci0 ACL tx timeout
> Jan 24 17:14:35 kernel: hci_acl_tx_to: hci0 killing stalled ACL connection
> BA:D4:09:EE:02:00
> Jan 24 17:14:35 kernel: hci_acl_tx_to: hci0 ACL tx timeout
> Jan 24 17:14:35 kernel: hci_acl_tx_to: hci0 killing stalled ACL connection
> BA:D4:09:EE:02:00
>
>
> TA.
>
> At 16:49 24/01/2005, Marcel Holtmann wrote:
>  >Hi George,
>  >
>  >> I'm facing a problem using the Bluez stack for linux and I don't know
>  >> the reason and how to solve it.
>  >> I'm using the PAN environment, using the BNEP over L2CAP. I'm using
>  >> kernel 2.4.28-mh1 and bluez-libs-2.10 and bluez-utils-2.10.
>  >>
>  >> I manage to get both devices connected and running a ping over it.
>  >> However when I do some web browsing a problem appear (also if doing an
>  >> FTP or whatever thing).
>  >> When the amount of traffic through the connection increase, the
>  >> connection shut down without any reason.
>  >>
>  >> Any idea of why when stressing the connection by transferring big
>
> amount of
>
>  >> data it closes.
>  >
>  >check the syslog or dmesg for any error messages when this happens. I
>  >never had problems with big amount of data over BNEP. Btw about how much
>  >data are we talking?
>  >
>  >Regards
>  >
>  >Marcel
>  >
>  >
>  >
>  >
>  >-------------------------------------------------------
>  >This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting
>  >Tool for open source databases. Create drag-&-drop reports. Save time
>  >by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc.
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>  >_______________________________________________
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>  >Bluez-users@lists.sourceforge.net
>  >https://lists.sourceforge.net/lists/listinfo/bluez-users
>
> -------------------------------------------------------
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> _______________________________________________
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> https://lists.sourceforge.net/lists/listinfo/bluez-users

-- 
S pozdravem

Michal Semler


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Re: [Bluez-users] Bluez BNEP connection close

[Marcel Holtmann]

Hi George,

> The fact is that I have copy pand code to automate them into my 
> application. My application makes a bridge in order to communicate WIFI and 
> BlueTooth.
> 
> The traffic is not too much.. when I run a ping -s 50000 it crashes and 
> hangs. The result is that some packets are transmitted correctly while 
> others doesn't.
> The bnep0 connection disappears and then both ends are no more connected.
> 
> After happening all that things I have to restart everything as the sdpd 
> and also the bluetooth devices on both ends are hanged.
> 
> For giving more information, one of the ends is a Sharp Zaurus 5500 and the 
> other is a Laptop using and AnyCom usb dongle
> 
> By having a look at /var/log/messages I have one messge that is:
> 
> Kernel: NETDED WATCHDOG: bnep0: transmit timed out
> 
> and also in other parts
> 
> Jan 24 17:14:35 kernel: hci_acl_tx_to: hci0 ACL tx timeout
> Jan 24 17:14:35 kernel: hci_acl_tx_to: hci0 killing stalled ACL connection 
> BA:D4:09:EE:02:00
> Jan 24 17:14:35 kernel: hci_acl_tx_to: hci0 ACL tx timeout
> Jan 24 17:14:35 kernel: hci_acl_tx_to: hci0 killing stalled ACL connection 
> BA:D4:09:EE:02:00

I actually expected to see this kind of messages. Seems like you should
replace the hardware. What does "hciconfig hci0 version" say about your
Bluetooth adapters?

Regards

Marcel




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Re: [Bluez-users] Bluez BNEP connection close

[George]

Hello.

The fact is that I have copy pand code to automate them into my 
application. My application makes a bridge in order to communicate WIFI and 
BlueTooth.

The traffic is not too much.. when I run a ping -s 50000 it crashes and 
hangs. The result is that some packets are transmitted correctly while 
others doesn't.
The bnep0 connection disappears and then both ends are no more connected.

After happening all that things I have to restart everything as the sdpd 
and also the bluetooth devices on both ends are hanged.

For giving more information, one of the ends is a Sharp Zaurus 5500 and the 
other is a Laptop using and AnyCom usb dongle

By having a look at /var/log/messages I have one messge that is:

Kernel: NETDED WATCHDOG: bnep0: transmit timed out

and also in other parts

Jan 24 17:14:35 kernel: hci_acl_tx_to: hci0 ACL tx timeout
Jan 24 17:14:35 kernel: hci_acl_tx_to: hci0 killing stalled ACL connection 
BA:D4:09:EE:02:00
Jan 24 17:14:35 kernel: hci_acl_tx_to: hci0 ACL tx timeout
Jan 24 17:14:35 kernel: hci_acl_tx_to: hci0 killing stalled ACL connection 
BA:D4:09:EE:02:00


TA.


At 16:49 24/01/2005, Marcel Holtmann wrote:
 >Hi George,
 >
 >> I'm facing a problem using the Bluez stack for linux and I don't know the
 >> reason and how to solve it.
 >> I'm using the PAN environment, using the BNEP over L2CAP. I'm using kernel
 >> 2.4.28-mh1 and bluez-libs-2.10 and bluez-utils-2.10.
 >>
 >> I manage to get both devices connected and running a ping over it. However
 >> when I do some web browsing a problem appear (also if doing an FTP or
 >> whatever thing).
 >> When the amount of traffic through the connection increase, the connection
 >> shut down without any reason.
 >>
 >> Any idea of why when stressing the connection by transferring big 
amount of
 >> data it closes.
 >
 >check the syslog or dmesg for any error messages when this happens. I
 >never had problems with big amount of data over BNEP. Btw about how much
 >data are we talking?
 >
 >Regards
 >
 >Marcel
 >
 >
 >
 >
 >-------------------------------------------------------
 >This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting
 >Tool for open source databases. Create drag-&-drop reports. Save time
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 >Download a FREE copy at http://www.intelliview.com/go/osdn_nl
 >_______________________________________________
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 >Bluez-users@lists.sourceforge.net
 >https://lists.sourceforge.net/lists/listinfo/bluez-users



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Re: [Bluez-users] Bluez BNEP connection close

[Marcel Holtmann]

Hi George,

>  >I actually expected to see this kind of messages. Seems like you should
>  >replace the hardware. What does "hciconfig hci0 version" say about your
>  >Bluetooth adapters?
> 
> hci0:   Type: USB
>          BD Address: 00:02:72:00:D4:29 ACL MTU: 192:8  SCO MTU: 64:8
>          HCI Ver: 1.1 (0x1) HCI Rev: 0x20d LMP Ver: 1.1 (0x1) LMP Subver: 0x20d
>          Manufacturer: Cambridge Silicon Radio (10)

is the SCO support for the hci_usb driver compiled in? Maybe this takes
away the USB bandwidth and this can result in troubles with a 2.4 kernel
and its USB subsystem. With a 2.6 kernel you can disable this with the
module parameter isoc, but I doubt that this is possible with a 2.4
kernel.

Regards

Marcel




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Re: [Bluez-users] Bluez BNEP connection close

[George]

At 17:23 24/01/2005, Marcel Holtmann wrote:
 >I actually expected to see this kind of messages. Seems like you should
 >replace the hardware. What does "hciconfig hci0 version" say about your
 >Bluetooth adapters?

hci0:   Type: USB
         BD Address: 00:02:72:00:D4:29 ACL MTU: 192:8  SCO MTU: 64:8
         HCI Ver: 1.1 (0x1) HCI Rev: 0x20d LMP Ver: 1.1 (0x1) LMP Subver: 0x20d
         Manufacturer: Cambridge Silicon Radio (10)



Thanks.



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Re: [Bluez-users] Bluez BNEP connection close

[Marcel Holtmann]

Hi George,

>  >is the SCO support for the hci_usb driver compiled in? Maybe this takes
>  >away the USB bandwidth and this can result in troubles with a 2.4 kernel
>  >and its USB subsystem. With a 2.6 kernel you can disable this with the
>  >module parameter isoc, but I doubt that this is possible with a 2.4
>  >kernel.
> 
> Great... I have the SCO support compiled. So you recommend that I remove it???
> 
> I will do so and hope it works ;)

you don't need to remove the general SCO support, but need to deactivate
the checkbox for SCO support in the hci_usb driver. Take a look at the
file /proc/bus/usb/devices and see if the ISOC endpoints are claimed.

Regards

Marcel




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Re: [Bluez-users] Bluez BNEP connection close

[George]

At 17:47 24/01/2005, Marcel Holtmann wrote:

 >is the SCO support for the hci_usb driver compiled in? Maybe this takes
 >away the USB bandwidth and this can result in troubles with a 2.4 kernel
 >and its USB subsystem. With a 2.6 kernel you can disable this with the
 >module parameter isoc, but I doubt that this is possible with a 2.4
 >kernel.

Great... I have the SCO support compiled. So you recommend that I remove it???

I will do so and hope it works ;)

Let you know in a while ;)

REgards.

 >
 >Regards
 >
 >Marcel
 >
 >
 >
 >
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 >_______________________________________________
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 >https://lists.sourceforge.net/lists/listinfo/bluez-users



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Re: [Bluez-users] Bluez BNEP connection close

[Marcel Holtmann]

Hi George,

> OOpssss ... It wasn't the solution
> 
> I have remove the SCO totally removed and still facing the same problem. 
> Thanks for your help and sorry for bothering all of you, but I have to show 
> my application in a short while and I want it to be as stable as possible.

try to swap your UHCI host controller with an OHCI one or move to a 2.6
kernel. If the USB subsystem is the problem I can't help you.

Regards

Marcel




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Re: [Bluez-users] Bluez BNEP connection close

[Michael McConnell]

Marcel Holtmann wrote:
> Hi George,
> 
> 
>>The fact is that I have copy pand code to automate them into my 
>>application. My application makes a bridge in order to communicate WIFI and 
>>BlueTooth.
>>
>>The traffic is not too much.. when I run a ping -s 50000 it crashes and 
>>hangs. The result is that some packets are transmitted correctly while 
>>others doesn't.
>>The bnep0 connection disappears and then both ends are no more connected.
>>
>>After happening all that things I have to restart everything as the sdpd 
>>and also the bluetooth devices on both ends are hanged.
>>
>>For giving more information, one of the ends is a Sharp Zaurus 5500 and the 
>>other is a Laptop using and AnyCom usb dongle
>>
>>By having a look at /var/log/messages I have one messge that is:
>>
>>Kernel: NETDED WATCHDOG: bnep0: transmit timed out
>>
>>and also in other parts
>>
>>Jan 24 17:14:35 kernel: hci_acl_tx_to: hci0 ACL tx timeout
>>Jan 24 17:14:35 kernel: hci_acl_tx_to: hci0 killing stalled ACL connection 
>>BA:D4:09:EE:02:00
>>Jan 24 17:14:35 kernel: hci_acl_tx_to: hci0 ACL tx timeout
>>Jan 24 17:14:35 kernel: hci_acl_tx_to: hci0 killing stalled ACL connection 
>>BA:D4:09:EE:02:00
> 
> 
> I actually expected to see this kind of messages. Seems like you should
> replace the hardware. What does "hciconfig hci0 version" say about your
> Bluetooth adapters?
> 
> Regards
> 
> Marcel

I'm also seeing these issues - and it trips up when I transmit a bit of data 
(amount variable :( )  including (but seemingly not limited to) SSH, VNC, FTP 
and Samba.

-- 
-- Michael McConnell
Eridani MailStripper - www.eridani.co.uk/MailStripper - SMTP-layer spam filter


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Re: [Bluez-users] Bluez BNEP connection close

[George]

OOpssss ... It wasn't the solution

I have remove the SCO totally removed and still facing the same problem. 
Thanks for your help and sorry for bothering all of you, but I have to show 
my application in a short while and I want it to be as stable as possible.


And my .config for the USB Devices

#
# Bluetooth support
#
CONFIG_BLUEZ=y
CONFIG_BLUEZ_L2CAP=y
# CONFIG_BLUEZ_SCO is not set
CONFIG_BLUEZ_RFCOMM=y
CONFIG_BLUEZ_RFCOMM_TTY=y
CONFIG_BLUEZ_BNEP=y
CONFIG_BLUEZ_BNEP_MC_FILTER=y
CONFIG_BLUEZ_BNEP_PROTO_FILTER=y
CONFIG_BLUEZ_HIDP=y

#
# Bluetooth device drivers
#
CONFIG_BLUEZ_HCIUSB=y
# CONFIG_BLUEZ_HCIUSB_SCO is not set
CONFIG_BLUEZ_HCIUART=y
CONFIG_BLUEZ_HCIUART_H4=y
CONFIG_BLUEZ_HCIUART_BCSP=y
CONFIG_BLUEZ_HCIUART_BCSP_TXCRC=y
CONFIG_BLUEZ_HCIBFUSB=y
CONFIG_BLUEZ_HCIVHCI=y


Here it is my /proc/bus/usb/devices

[root@s root]# cat /proc/bus/usb/devices
T:  Bus=04 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 2
B:  Alloc=  0/900 us ( 0%), #Int=  0, #Iso=  0
D:  Ver= 1.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0000 ProdID=0000 Rev= 0.00
S:  Product=USB UHCI-alt Root Hub
S:  SerialNumber=1860
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=  0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   8 Ivl=255ms
T:  Bus=03 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 2
B:  Alloc= 23/900 us ( 3%), #Int=  1, #Iso=  0
D:  Ver= 1.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0000 ProdID=0000 Rev= 0.00
S:  Product=USB UHCI-alt Root Hub
S:  SerialNumber=1840
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=  0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   8 Ivl=255ms
T:  Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  5 Spd=12  MxCh= 0
D:  Ver= 1.10 Cls=e0(unk. ) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=0a12 ProdID=0001 Rev= 5.25
C:* #Ifs= 3 Cfg#= 1 Atr=c0 MxPwr=  0mA
I:  If#= 0 Alt= 0 #EPs= 3 Cls=e0(unk. ) Sub=01 Prot=01 Driver=hci_usb
E:  Ad=81(I) Atr=03(Int.) MxPS=  16 Ivl=1ms
E:  Ad=02(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
I:  If#= 1 Alt= 0 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=   0 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   0 Ivl=1ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=   9 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=   9 Ivl=1ms
I:  If#= 1 Alt= 2 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=  17 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  17 Ivl=1ms
I:  If#= 1 Alt= 3 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=  25 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  25 Ivl=1ms
I:  If#= 1 Alt= 4 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=  33 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  33 Ivl=1ms
I:  If#= 1 Alt= 5 #EPs= 2 Cls=e0(unk. ) Sub=01 Prot=01 Driver=(none)
E:  Ad=03(O) Atr=01(Isoc) MxPS=  49 Ivl=1ms
E:  Ad=83(I) Atr=01(Isoc) MxPS=  49 Ivl=1ms
I:  If#= 2 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=00 Driver=(none)
T:  Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=12  MxCh= 2
B:  Alloc=  0/900 us ( 0%), #Int=  0, #Iso=  0
D:  Ver= 1.00 Cls=09(hub  ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
P:  Vendor=0000 ProdID=0000 Rev= 0.00
S:  Product=USB UHCI-alt Root Hub
S:  SerialNumber=1820
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=  0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   8 Ivl=255ms
T:  Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#=  1 Spd=480 MxCh= 6
B:  Alloc=  0/800 us ( 0%), #Int=  0, #Iso=  0
D:  Ver= 2.00 Cls=09(hub  ) Sub=00 Prot=01 MxPS= 8 #Cfgs=  1
P:  Vendor=0000 ProdID=0000 Rev= 2.04
S:  Manufacturer=Linux 2.4.28-mh1 ehci_hcd
S:  Product=Intel Corp. 82801DB USB2
S:  SerialNumber=00:1d.7
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr=  0mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=09(hub  ) Sub=00 Prot=00 Driver=hub
E:  Ad=81(I) Atr=03(Int.) MxPS=   2 Ivl=256ms


At 18:33 24/01/2005, George wrote:
 >At 17:47 24/01/2005, Marcel Holtmann wrote:
 >
 > >is the SCO support for the hci_usb driver compiled in? Maybe this takes
 > >away the USB bandwidth and this can result in troubles with a 2.4 kernel
 > >and its USB subsystem. With a 2.6 kernel you can disable this with the
 > >module parameter isoc, but I doubt that this is possible with a 2.4
 > >kernel.
 >
 >Great... I have the SCO support compiled. So you recommend that I remove 
it???
 >
 >I will do so and hope it works ;)
 >
 >Let you know in a while ;)
 >
 >REgards.
 >
 > >
 > >Regards
 > >
 > >Marcel
 > >
 > >
 > >
 > >
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 > 



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Re: [Bluez-users] Bluez BNEP connection close

[George]

So then the problem is not the Bluez Stack but the USB.

Ok... Thanks very very much for your help... I will try that last thing you 
suggest and hope it works ;)

Regards.



At 19:04 24/01/2005, Marcel Holtmann wrote:
 >Hi George,
 >
 >> OOpssss ... It wasn't the solution
 >>
 >> I have remove the SCO totally removed and still facing the same problem.
 >> Thanks for your help and sorry for bothering all of you, but I have to 
show
 >> my application in a short while and I want it to be as stable as possible.
 >
 >try to swap your UHCI host controller with an OHCI one or move to a 2.6
 >kernel. If the USB subsystem is the problem I can't help you.
 >
 >Regards
 >
 >Marcel
 >
 >
 >
 >
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 >https://lists.sourceforge.net/lists/listinfo/bluez-users



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Re: [Bluez-users] Bluez BNEP connection close

[George]

Hi again.

In my code I have a reconnection capability once the bnep connection 
disappears.
However doing some more tests I found that sometimes the interface bnep0 is 
still there (in the laptop) although there is no connectivity.
I mean, the interface exists but the channel or path is not more up. 
Therefore my reconnection capability doesn't work on this case.

So... don't know what could happen. I have recompiled the kernel serveral 
times changing the UCHI, OHCI and EHCI supports but still happens the same..

I'm thinking on buying a PCMCIA Bluetooth card to have a try as Marcel 
thinks the problem is with the usb.

Any new Idea?

Sorry for being so insistant but it's a matter of dead or life ;)

Regards

At 19:04 24/01/2005, Marcel Holtmann wrote:
 >Hi George,
 >
 >> OOpssss ... It wasn't the solution
 >>
 >> I have remove the SCO totally removed and still facing the same problem.
 >> Thanks for your help and sorry for bothering all of you, but I have to 
show
 >> my application in a short while and I want it to be as stable as possible.
 >
 >try to swap your UHCI host controller with an OHCI one or move to a 2.6
 >kernel. If the USB subsystem is the problem I can't help you.
 >
 >Regards
 >
 >Marcel
 >
 >
 >
 >
 >-------------------------------------------------------
 >This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting
 >Tool for open source databases. Create drag-&-drop reports. Save time
 >by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc.
 >Download a FREE copy at http://www.intelliview.com/go/osdn_nl
 >_______________________________________________
 >Bluez-users mailing list
 >Bluez-users@lists.sourceforge.net
 >https://lists.sourceforge.net/lists/listinfo/bluez-users



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Re: [Bluez-users] Bluez BNEP connection close

[Marcel Holtmann]

Hi George,

> In my code I have a reconnection capability once the bnep connection 
> disappears.
> However doing some more tests I found that sometimes the interface bnep0 is 
> still there (in the laptop) although there is no connectivity.
> I mean, the interface exists but the channel or path is not more up. 
> Therefore my reconnection capability doesn't work on this case.

this is maybe a bug or a little race in the code. Include more details
and actually are way to reproduce it.

> So... don't know what could happen. I have recompiled the kernel serveral 
> times changing the UCHI, OHCI and EHCI supports but still happens the same..

Recompiling the kernel doesn't help here. You need to exchange the USB
host controller hardware for checking UHCI, OHCI or EHCI. I always have
a second PCI USB controller in my system for these tests.

> I'm thinking on buying a PCMCIA Bluetooth card to have a try as Marcel 
> thinks the problem is with the usb.

It is worth testing, but don't ask for the best PCMCIA card. This is
always another story. In general every card is working, but you must now
the exact hciattach parameter to make them work.

Regards

Marcel




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Re: [Bluez-users] Bluez BNEP connection close

[George]

Hi again...

With the PCMCIA card is much more stable. For the moment it only has 
crashed one or twice when stressing the channel throughput.

Thanks for all the help.

Regards

At 13:32 25/01/2005, Marcel Holtmann wrote:
 >Hi George,
 >
 >> In my code I have a reconnection capability once the bnep connection
 >> disappears.
 >> However doing some more tests I found that sometimes the interface 
bnep0 is
 >> still there (in the laptop) although there is no connectivity.
 >> I mean, the interface exists but the channel or path is not more up.
 >> Therefore my reconnection capability doesn't work on this case.
 >
 >this is maybe a bug or a little race in the code. Include more details
 >and actually are way to reproduce it.
 >
 >> So... don't know what could happen. I have recompiled the kernel serveral
 >> times changing the UCHI, OHCI and EHCI supports but still happens the 
same..
 >
 >Recompiling the kernel doesn't help here. You need to exchange the USB
 >host controller hardware for checking UHCI, OHCI or EHCI. I always have
 >a second PCI USB controller in my system for these tests.
 >
 >> I'm thinking on buying a PCMCIA Bluetooth card to have a try as Marcel
 >> thinks the problem is with the usb.
 >
 >It is worth testing, but don't ask for the best PCMCIA card. This is
 >always another story. In general every card is working, but you must now
 >the exact hciattach parameter to make them work.
 >
 >Regards
 >
 >Marcel
 >
 >
 >
 >
 >-------------------------------------------------------
 >This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting
 >Tool for open source databases. Create drag-&-drop reports. Save time
 >by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc.
 >Download a FREE copy at http://www.intelliview.com/go/osdn_nl
 >_______________________________________________
 >Bluez-users mailing list
 >Bluez-users@lists.sourceforge.net
 >https://lists.sourceforge.net/lists/listinfo/bluez-users



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