[Buildroot] Problem with Raspberry Pi 3B+and BT

[Buildroot] Problem with Raspberry Pi 3B+and BT

[Oscar Gomez Fuente]

Hi everyone,

I have a problem with the Bluetooth on my raspberry pi 3B+, I have
installed the following packages:

[*] bluez-tools
[*] bluez-utils 5.x
[*]   build OBEX support
[*]   build CLI client
[*]   build experimental obexd plugin
[*]   build health plugin
[*]   build midi profile
[*]   build nfc plugin
[*]   build sap plugin
[*]   build sixaxis plugin
[*]   build tests
[*]   install bdaddr tool

I'm using the raspberry pi for scanning BT devices continuously, using
this command:

# bt-adapter -a hci0 -d

And everything works fines, but occasionally this command fails and Ii
doesn't work anymore and I have to reboot my HW. I was taking a look
at the kernel messages:

[25124.029835] Bluetooth: hci0: Frame reassembly failed (-84)
[25124.031902] Bluetooth: hci0: Frame reassembly failed (-90)
[25124.033665] Bluetooth: hci0: Frame reassembly failed (-84)
[28601.218856] Bluetooth: hci0 advertising data length corrected
[29425.140974] Bluetooth: hci0: Frame reassembly failed (-84)
[29427.218670] Bluetooth: Failed to disable LE scan: status 0x1f
[29427.220413] Bluetooth: hci0 command 0x200c tx timeout
[29561.841776] Bluetooth: hci0 command 0x200c tx timeout

Does anyone if it is a problem related to the driver (kernel level) or
something related to the package  bluez-utils 5.x?

Best regards.

Oscar Gomez Fuente
TST Sistemas
www.tst.sistemas.es

[Buildroot] Problem with Raspberry Pi 3B+and BT

[Matthew Weber]

Oscar,

On Thu, Oct 11, 2018 at 3:46 AM Oscar Gomez Fuente
<oscargomezf@gmail.com> wrote:
>
> Hi everyone,
>
> I have a problem with the Bluetooth on my raspberry pi 3B+, I have
> installed the following packages:
>
> [*] bluez-tools
> [*] bluez-utils 5.x
> [*]   build OBEX support
> [*]   build CLI client
> [*]   build experimental obexd plugin
> [*]   build health plugin
> [*]   build midi profile
> [*]   build nfc plugin
> [*]   build sap plugin
> [*]   build sixaxis plugin
> [*]   build tests
> [*]   install bdaddr tool
>
> I'm using the raspberry pi for scanning BT devices continuously, using
> this command:
>
> # bt-adapter -a hci0 -d
>
> And everything works fines, but occasionally this command fails and Ii
> doesn't work anymore and I have to reboot my HW. I was taking a look
> at the kernel messages:
>
> [25124.029835] Bluetooth: hci0: Frame reassembly failed (-84)
> [25124.031902] Bluetooth: hci0: Frame reassembly failed (-90)
> [25124.033665] Bluetooth: hci0: Frame reassembly failed (-84)
> [28601.218856] Bluetooth: hci0 advertising data length corrected
> [29425.140974] Bluetooth: hci0: Frame reassembly failed (-84)
> [29427.218670] Bluetooth: Failed to disable LE scan: status 0x1f
> [29427.220413] Bluetooth: hci0 command 0x200c tx timeout
> [29561.841776] Bluetooth: hci0 command 0x200c tx timeout
>

That looks kernel related.  I believe the PI has some GPU firmware
loaded that applies to bluetooth.  I've never tried updating it,
however there are tools out there to update the firmware that's stored
in some non-volatile space on the board.
https://github.com/Hexxeh/rpi-update   # notes here:
https://raspberrypi.stackexchange.com/questions/164/how-do-i-update-software-and-firmware

Another idea would be verifying your power supply is large enough to
accommodate bluetooth.  To check this, If you have other USB devices
attached, unplug a few usb devices, startup and see if bluetooth is
more stable.

Matt

[Buildroot] Problem with Raspberry Pi 3B+and BT

[Oscar Gomez Fuente]

Hi Mattew,

> Another idea would be verifying your power supply is large enough to
> accommodate bluetooth.  To check this, If you have other USB devices
> attached, unplug a few usb devices, startup and see if bluetooth is
> more stable.

I am using a 5V at 3A power supply, and I was checking with a Power
Analyzer, the maximum peak current is 1.9A, so I am sure that the
power supply is good enough.

Best regards.

Oscar Gomez Fuente
TST Sistemas
www.tst.sistemas.es

[Buildroot] Problem with Raspberry Pi 3B+and BT

[Peter Seiderer]

Hello Oscar, Matt,

On Thu, 11 Oct 2018 07:48:43 -0500, Matthew Weber <matthew.weber@rockwellcollins.com> wrote:

> Oscar,
> 
> On Thu, Oct 11, 2018 at 3:46 AM Oscar Gomez Fuente
> <oscargomezf@gmail.com> wrote:
> >
> > Hi everyone,
> >
> > I have a problem with the Bluetooth on my raspberry pi 3B+, I have
> > installed the following packages:
> >
> > [*] bluez-tools
> > [*] bluez-utils 5.x
> > [*]   build OBEX support
> > [*]   build CLI client
> > [*]   build experimental obexd plugin
> > [*]   build health plugin
> > [*]   build midi profile
> > [*]   build nfc plugin
> > [*]   build sap plugin
> > [*]   build sixaxis plugin
> > [*]   build tests
> > [*]   install bdaddr tool
> >
> > I'm using the raspberry pi for scanning BT devices continuously, using
> > this command:
> >
> > # bt-adapter -a hci0 -d
> >
> > And everything works fines, but occasionally this command fails and Ii
> > doesn't work anymore and I have to reboot my HW. I was taking a look
> > at the kernel messages:
> >
> > [25124.029835] Bluetooth: hci0: Frame reassembly failed (-84)
> > [25124.031902] Bluetooth: hci0: Frame reassembly failed (-90)
> > [25124.033665] Bluetooth: hci0: Frame reassembly failed (-84)
> > [28601.218856] Bluetooth: hci0 advertising data length corrected
> > [29425.140974] Bluetooth: hci0: Frame reassembly failed (-84)
> > [29427.218670] Bluetooth: Failed to disable LE scan: status 0x1f
> > [29427.220413] Bluetooth: hci0 command 0x200c tx timeout
> > [29561.841776] Bluetooth: hci0 command 0x200c tx timeout
> >
> 
> That looks kernel related.  I believe the PI has some GPU firmware
> loaded that applies to bluetooth.  I've never tried updating it,
> however there are tools out there to update the firmware that's stored
> in some non-volatile space on the board.
> https://github.com/Hexxeh/rpi-update   # notes here:
> https://raspberrypi.stackexchange.com/questions/164/how-do-i-update-software-and-firmware

The GPU Firmware is stored on the SD card image, the given links are about updating
the firmware when using a Raspbian SD card image, for the buildroot way to update
to latest versions see [1]...

> 
> Another idea would be verifying your power supply is large enough to
> accommodate bluetooth.  To check this, If you have other USB devices
> attached, unplug a few usb devices, startup and see if bluetooth is
> more stable.

Or try out a latest original Raspbian image and check if your errors
occur there too (sorry no B+ at hand to try out myself, only a legacy
B one)...

Regards,
Peter

[1] http://lists.busybox.net/pipermail/buildroot/2018-October/233136.html

> 
> Matt
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

[Buildroot] Problem with Raspberry Pi 3B+and BT

[Oscar Gomez Fuente]

Hi Peter,


Thank you very much for your help. I will try on Monday I will report it to you.

Do you know if there is any plan to add WiFi monitor support on the
kernel driver for the WiFi /BT chip: CYW43455 on Raspberry Pi 3B+?


Best regards.

Oscar Gomez Fuente
TST Sistemas
www.tst-sistemas.es

[Buildroot] Problem with Raspberry Pi 3B+and BT

[Oscar Gomez Fuente]

Hi Peter,

I've tried the BT with the new rpi-bt-firmware [8c1e2bff1d],
rpi-wifi-firmware [8c1e2bff1d] and linux-firmware [44d4fca992] and new
linux [6d27aa156c] packages, but it fails with the same error:

[30090.903743] Bluetooth: hci0: Frame reassembly failed (-84)
[30092.980340] Bluetooth: Failed to disable LE scan: status 0x1f
[30092.980346] Bluetooth: hci0 command 0x200c tx timeout

After around 8 hours the BT didn't work again.

Does anyone any suggestion?

Best regards.

Oscar Gomez Fuente
TST Sistemas
www.tst-sistemas.es

[Buildroot] Problem with Raspberry Pi 3B+and BT

[Peter Seiderer]

Hello Oscar,

On Tue, 16 Oct 2018 08:45:36 +0200, Oscar Gomez Fuente <oscargomezf@gmail.com> wrote:

> Hi Peter,
> 
> I've tried the BT with the new rpi-bt-firmware [8c1e2bff1d],
> rpi-wifi-firmware [8c1e2bff1d] and linux-firmware [44d4fca992] and new
> linux [6d27aa156c] packages, but it fails with the same error:
> 
> [30090.903743] Bluetooth: hci0: Frame reassembly failed (-84)
> [30092.980340] Bluetooth: Failed to disable LE scan: status 0x1f
> [30092.980346] Bluetooth: hci0 command 0x200c tx timeout
> 
> After around 8 hours the BT didn't work again.
> 
> Does anyone any suggestion?

Do the check with an original Raspbian Image, if the same error occurs
complain upstream about it, otherwise find out what makes the difference...

Try the search the web, your are not the only one with this problem [1], [2]...

Regards,
Peter

[1] https://github.com/raspberrypi/linux/issues/2264
[2] https://raspberrypi.stackexchange.com/questions/70217/tons-of-bluetooth-hci0-frame-reassembly-failed-84-messages

> 
> Best regards.
> 
> Oscar Gomez Fuente
> TST Sistemas
> www.tst-sistemas.es

[Buildroot] Problem with Raspberry Pi 3B+and BT

[Oscar Gomez Fuente]

Hi Peter,

Thank you very much for your help, after reading other similar
problems, it seems to be it could be related due to the speed. Right
now the uart speed is set to 921600 bps, I'm going to try to reduce
the speed to 460800 bps. I will report to you if the problem was
solved.

Best regards.

Oscar Gomez Fuente
TST Sistemas
www.tst-sistemas.es

[Buildroot] Problem with Raspberry Pi 3B+and BT

[Oscar Gomez Fuente]

Hi everyone,

I was checking with lower speed: 460800bps instead of 921600bps and
the same problem.

Best regards.

Oscar Gomez Fuente
TST Sistemas
www.tst-sistemas.es

[Buildroot] Problem with Raspberry Pi 3B+and BT

[Peter Seiderer]

Hello Oscar,

On Mon, 29 Oct 2018 08:24:12 +0100, Oscar Gomez Fuente <oscargomezf@gmail.com> wrote:

> Hi everyone,
> 
> I was checking with lower speed: 460800bps instead of 921600bps and
> the same problem.

Thanks for the update, but I think your problem is maybe not buildroot specific?
My remaining (and repeated) advice:

	Do the check with an original Raspbian Image, if the same error occurs
	complain upstream about it, otherwise find out what makes the difference...

Nevertheless an update on success/failure is welcome ;-)

Regards,
Peter

> 
> Best regards.
> 
> Oscar Gomez Fuente
> TST Sistemas
> www.tst-sistemas.es
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> buildroot mailing list
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