MATTER exampel - goes into deadlock when starting BLE advertising

RE: MATTER exampel - goes into deadlock when starting BLE advertising

Amanda Hsieh — Mon, 11 Dec 2023 19:04:22 GMT

Good to know you found the issue.

-Amanda H.

RE: MATTER exampel - goes into deadlock when starting BLE advertising

Jenzo — Mon, 11 Dec 2023 17:07:22 GMT

Hi Amanda,

Thank you for your feedback and help.

It inspired me to look at the AppTask.cpp where I discovered that:

ReturnErrorOnFailure(chip::Server::GetInstance().Init(initParams));

was deleted 🙂

So my bad. Apologize for the inconvenience.

Regards
Jens

RE: MATTER exampel - goes into deadlock when starting BLE advertising

Amanda Hsieh — Mon, 11 Dec 2023 14:07:48 GMT

Hi,

The team has looked at the code and can see that the only place where the mFabricTable member of the DnssdServer is set is here:

https://github.com/nrfconnect/sdk-connectedhomeip/blob/3b8ba59f1f43d84754de4facfac23f46f8d7cc71/src/app/server/Server.cpp#L231

In turn, the mFabrics from the Serverclass should exist since the creation of the Server instance itself (it cannot be nullptr, whereas the mFabricTablecan be nullptr when not explicitly set).

So I'd expect that some of the SuccessOrExit checks before the app::DnssdServer::Instance().SetFabricTable(&mFabrics); call was hit. Can you check that?

Do you use our native NCS code to start advertising? What is the reproduction rate? 100%? You said that the Lock sample was running ok, do you mean before starting the advertising after reboot?

Regarding the error log, I suggest to debug the ChipDnssdInit() from platform/OpenThread/DnssdImpl.cpp.

Regards,
Amanda H.

RE: MATTER exampel - goes into deadlock when starting BLE advertising

Amanda Hsieh — Fri, 08 Dec 2023 22:00:24 GMT

Hi,

I am checking with the team. Please give us time. Appreciate your understanding.

-Amanda H.

RE: MATTER exampel - goes into deadlock when starting BLE advertising

Jenzo — Fri, 08 Dec 2023 10:40:53 GMT

Hi Amanda,

did you have time to discuss this issue with your colleagues?

Regards

Jens

RE: MATTER exampel - goes into deadlock when starting BLE advertising

Jenzo — Fri, 08 Dec 2023 06:41:55 GMT

What does'E: 13918 [DIS]Failed to remove advertised services: 3' mean? I guess this is the reason for it to break.

Why doesn't it succeed removing advertising services? And why does the compiler read the 'mFabricTable' as null when in fact it is not null?

Perhaps the error is caused by a setup of VS code?

RE: MATTER exampel - goes into deadlock when starting BLE advertising

Jenzo — Thu, 07 Dec 2023 14:30:35 GMT

We surely tried a lot of stuff - Recover board, erase board, close VS Code - tried with another board...

Yes we did modify the example. Lots of smaller details, but nothing in relation to commissioning, advertsing, etc. We did try to trace back our modifications to see if recent amendments was the reason for the failure, but no resolution to the failure.

Perhaps if you could tell us what could cause the failure? Then we would have a better chance to find the error.

Regards

Jenzo

RE: MATTER exampel - goes into deadlock when starting BLE advertising

Amanda Hsieh — Thu, 07 Dec 2023 14:26:27 GMT

Did you modify the MATTER Lock example? If so, what is that?

Did you erase the kit before programming?

RE: MATTER exampel - goes into deadlock when starting BLE advertising

Jenzo — Thu, 07 Dec 2023 13:55:35 GMT

I am using SDK v2.5.0.

Here is a bit of output from the device when trying to start advertising:

I: Init CHIP stack
I: 215 [DL]BLE address: F4:A9:41:B2:A8:2F
I: 224 [DL]OpenThread SED interval is 1000ms
I: 229 [DL]OpenThread started: OK
I: 232 [DL]Setting OpenThread device type to SLEEPY END DEVICE
I: 239 [SVR]Subscription persistence not supported
I: 244 [DL]Device Configuration:
I: 247 [DL] Serial Number: 11223344556677889900
I: 251 [DL] Vendor Id: 65521 (0xFFF1)
I: 255 [DL] Product Id: 32774 (0x8006)
I: 258 [DL] Product Name: not-specified
I: 262 [DL] Hardware Version: 0
I: 265 [DL] Setup Pin Code (0 for UNKNOWN/ERROR): 20202021
I: 271 [DL] Setup Discriminator (0xFFFF for UNKNOWN/ERROR): 3840 (0xF00)
I: 277 [DL] Manufacturing Date: (not set)
I: 281 [DL] Device Type: 65535 (0xFFFF)
I: 285 [SVR]SetupQRCode: [MT:8IXS142C00KA0648G00]
I: 290 [SVR]Copy/paste the below URL in a browser to see the QR Code:
I: 296 [SVR]project-chip.github.io/.../qrcode.html
I: 305 [SVR]Manual pairing code: [34970112332]
Flash read failed
I: 320 [DL]CHIP task running
I: 13903 [DL]OpenThread SED interval is 200ms
I: 13907 [DIS]Updating services using commissioning mode 0
D: 13912 [DL]Using Thread extended MAC for hostname.
E: 13918 [DIS]Failed to remove advertised services: 3
abort()
E: r0/a1: 0x00000004 r1/a2: 0x2000d078 r2/a3: 0x2000d078
E: r3/a4: 0x00000000 r12/ip: 0x00000000 r14/lr: 0x00032f45
E: xpsr: 0x61000000
E: s[ 0]: 0x00000000 s[ 1]: 0x0002d78d s[ 2]: 0x00000000 s[ 3]: 0x00000001
E: s[ 4]: 0x000cf2dc s[ 5]: 0x00000000 s[ 6]: 0x2001ae2c s[ 7]: 0x20015314
E: s[ 8]: 0x000b6e37 s[ 9]: 0x00093bf5 s[10]: 0x000b6e37 s[11]: 0x200247f4
E: s[12]: 0x000e1490 s[13]: 0x00032f45 s[14]: 0x000d80cc s[15]: 0x2000d078
E: fpscr: 0x2000d078
E: Faulting instruction address (r15/pc): 0x00032f50
E: >>> ZEPHYR FATAL ERROR 4: Kernel panic on CPU 0
E: Current thread: 0x2000d078 (main)
E: Halting system

RE: MATTER exampel - goes into deadlock when starting BLE advertising

Amanda Hsieh — Thu, 07 Dec 2023 13:37:22 GMT

Hi,

Which NCS version are you using?

Do you get any errors from the log? Could you provide the device log?

Regards,
Amanda H.

RE: MATTER exampel - goes into deadlock when starting BLE advertising

Jenzo — Thu, 07 Dec 2023 12:58:22 GMT