Any update on software caused connection abort issue??

[john michelle]

Any update on software caused connection abort issue

Dear Bluetooth community,
You are committing version after version and have time to add new
Features and the core stack have a major bug (software Caused
connection abort) that i
Have reported on the 7th of may the problem seems to be either in the
usb part of the
Kernel or the bluez stack, i am no kernel engineer so i came directly
to you for reporting
This problem and my requests to look into this problem are just
ignored. this is a blocker
Issue that would prevent and discourage any one from developing
application that rely on
Bluez sco capabilities, since during transmission the above mentioned
error just occurs.
I hope that my voice is heared and i would get a reply from the bluez=

community.

John

Hi Gustavo,

Please post the output of hcidump when the connection abort happe=

ns.

Below is the output of hcidump the moments the software caused conn=

ection abort

HCI Event: Number of Completed Packets (0x13) plen 5

=A0. * . . .
< HCI Command: Reset (0x03|0x0003) plen 0
device: disconnected

HCI Event: Number of Completed Packets (0x13) plen 5

=A0. * . . .
< HCI Command: Reset (0x03|0x0003) plen 0
device: disconnected
I think something triggers hci reset which causes this problem, but=

what exactly

Triggers it i don't know.
John

Hi all,
Is anyone going to give this problem a try, it has been like a month=

now

This is a real problem in the bluez stack and someone have to look i=

n this

Issue.
John

Hi Jonh,
First of all, don't do top posting in this mailing list. ;)

Thanks for the advise , will keep that in mind for future posts.

In which bluez/kernel version the problem started? Any hardware u=

pdate

during this time? The problem happens when you are already tranfe=

ring

SCO data?

I tried bluez versions 3.XX =A0and kernel 2.6.26(I think) the prob=

lem

occurs and the kernel panics with no core dumps.then i tried with
bluez 4.53-4.62 with
Kernel 2.6.31 and 2.6.32. the connection abort problem occurs but =

the

kernel doesn't
Panic. regarding the hardware update you mean the dongle or the bo=

x.Anyway

i changed both and tried different box's, this even happens on a b=

ox

with 2 giga ram
And core2 processor . as for the dongles i am using trust
http://www.twenga.co.uk/prices-Bluetooth-2-USB-Adapter-10m-BT-2250=

p-TRUST-Wireless-network-card-adapter-176178-0

=A0and also using no name dongles all the same problem.

Please post the output of hcidump when the connection abort happe=

ns.

well that is going to be a hard one since i have more than one don=

gle in place

And very hard to predict which one will crash.i will work on this =

and update

You as soon as i have the hcidump log.

I tried reproduce this issue in L2CAP but it is a bit hard, lets
say it happen once in a thousand, so it's not easy to track it. I=

have

to try reproduce that using the SCO, but I'm not used to that lay=

er yet.

;)

I hoped that it happens 1 in 1000 in SCO , but it actually happens=

1 in 15

John

Regards,

John

Hi Bluetooth hackers,
i am having this consistent problem with bluez , from time to=

time i

get the error Software caused connection abort (103 )
And the bluetooth stick seems to disconnect and reconnects. t=

his

happens during an sco connection and it occurs even
More when i am having the voice stream comming through the in=

ternet

rather than the lan.i don't know what exact
Details you need to solve this problem please tell me and i w=

ill give

you an immediate reply . i have linux kernel 2.6.33 and bluez=

4.62

I get the same problem sometimes when testing ERTM with l2test=

=2E So the

problem is on l2cap too. I didn't have time to debug this yet.=

Now that

someone else have confirmed it too, I'll to take a look at the=

problem.

--
Gustavo F. Padovan
http://padovan.org

[john michelle]

Any update on software caused connection abort issue

Dear Bluetooth community,
You are committing version after version and have time to add new
Features and the core stack have a major bug (software Caused
connection abort) that i
Have reported on the 7th of may the problem seems to be either in th=

e

usb part of the
Kernel or the bluez stack, i am no kernel engineer so i came directl=

y

to you for reporting
This problem and my requests to look into this problem are just
ignored. this is a blocker
Issue that would prevent and discourage any one from developing
application that rely on
Bluez sco capabilities, since during transmission the above mentione=

d

error just occurs.
I hope that my voice is heared and i would get a reply from the blue=

z community.

John

Hi Gustavo,

Please post the output of hcidump when the connection abort happ=

ens.

Below is the output of hcidump the moments the software caused con=

nection abort

HCI Event: Number of Completed Packets (0x13) plen 5

=A0. * . . .
< HCI Command: Reset (0x03|0x0003) plen 0
device: disconnected

HCI Event: Number of Completed Packets (0x13) plen 5

=A0. * . . .
< HCI Command: Reset (0x03|0x0003) plen 0
device: disconnected
I think something triggers hci reset which causes this problem, bu=

t what exactly

Triggers it i don't know.
John

Hi all,
Is anyone going to give this problem a try, it has been like a mont=

h now

This is a real problem in the bluez stack and someone have to look =

in this

Issue.
John

Hi Jonh,
First of all, don't do top posting in this mailing list. ;)

Thanks for the advise , will keep that in mind for future posts.

In which bluez/kernel version the problem started? Any hardware =

update

during this time? The problem happens when you are already tranf=

ering

SCO data?

I tried bluez versions 3.XX =A0and kernel 2.6.26(I think) the pro=

blem

occurs and the kernel panics with no core dumps.then i tried with
bluez 4.53-4.62 with
Kernel 2.6.31 and 2.6.32. the connection abort problem occurs but=

the

kernel doesn't
Panic. regarding the hardware update you mean the dongle or the b=

ox.Anyway

i changed both and tried different box's, this even happens on a =

box

with 2 giga ram
And core2 processor . as for the dongles i am using trust
http://www.twenga.co.uk/prices-Bluetooth-2-USB-Adapter-10m-BT-225=

0p-TRUST-Wireless-network-card-adapter-176178-0

=A0and also using no name dongles all the same problem.

Please post the output of hcidump when the connection abort happ=

ens.

well that is going to be a hard one since i have more than one do=

ngle in place

And very hard to predict which one will crash.i will work on this=

and update

You as soon as i have the hcidump log.

I tried reproduce this issue in L2CAP but it is a bit hard, lets
say it happen once in a thousand, so it's not easy to track it. =

I have

to try reproduce that using the SCO, but I'm not used to that la=

yer yet.

;)

I hoped that it happens 1 in 1000 in SCO , but it actually happen=

s 1 in 15

John

Regards,

John

Hi Bluetooth hackers,
i am having this consistent problem with bluez , from time t=

o time i

get the error Software caused connection abort (103 )
And the bluetooth stick seems to disconnect and reconnects. =

this

happens during an sco connection and it occurs even
More when i am having the voice stream comming through the i=

nternet

rather than the lan.i don't know what exact
Details you need to solve this problem please tell me and i =

will give

you an immediate reply . i have linux kernel 2.6.33 and blue=

z 4.62

I get the same problem sometimes when testing ERTM with l2tes=

t. So the

problem is on l2cap too. I didn't have time to debug this yet=

=2E Now that

someone else have confirmed it too, I'll to take a look at th=

e problem.

--
Gustavo F. Padovan
http://padovan.org