peripheral and central UART sample crash when sending longer messages

[PingISTL]

Hello, All

I received following message when I test the code, it appears on both sides, 

ASSERTION FAIL [chunk_used(h, c)] @ WEST_TOPDIR/zephyr/lib/os/heap.c
:163

unexpected heap state (double-free?) for memory at 0x20006fec

And then it reset, what is the problem please?

I have not changed any code for both.

Thank you !

Ping

[Øivind]

Hi,

Thank you for bringing this to our attention.

We have had reports of a bug in these samples, and we are currently working on a fix.

I will update you when we have a pull request ready.

[TF mulder]

Hi,

Seems i have the same issue.

Im using nrfConnect/central_uart sample.  (im trying to combine the nrfConnect/cdc_acm sample into the central_uart, because i need to have that running on the nRF52840-dongle)

looking forward, to the update.

Best Regards,

Theo

[TF mulder]

Hi, 

probably not THE sollution, but when i empty (remove the code) of  the routine: 

static void ble_data_sent(struct bt_nus_client *nus, uint8_t err,

                    const uint8_t *const data, uint16_t len)

the the crash is gone, and the send data i see on the peripheral.   

...but,  probably i have now a missing feature ???? 

Best Regards,

Theo 

[Øivind]

Hi,

We now have a pull request up with a fix for the double free issue in these samples.

https://github.com/nrfconnect/sdk-nrf/pull/7190

Thank you for your patience.

[PingISTL]

Thank you for letting me know, I will try the new fix.

Ping