NRF_ERROR_INTERNAL from a pstorage_store() call?

[Dave_couling]

I received a NRF_ERROR_INTERNAL error from a pstorage_store() function. As far as I can tell this error should not result from this function. It occurs fairly randomly. This function is called regularly successfully. I'm not sure how I should handle this error.

EDIT: June 1, 2016 Added Screen shot as requested Screen-Shot Flash ERROR.png

A few further notes 1)Often times this error will accompany other odd behaviour with the pstorage_callback_function() not being called. Its weird that the same code runs fine on some devices and not others.

2. I use the same function which calls pstorage_clear() and pstorage_store(). I use the proper wait for events to clear loops:

   while( pstorage_wait_flag ){ sd_app_evt_wait(); app_sched_execute(); } //Sleep until store operation is finished.

3. The calls the clear and store occur during a phones default connection interval (~35ms)

4. I use a static variable in this store function for the source_data[]. Could there be an odd mutex or concurrency issue? Since this function could be called from multiple sources. its in theory possible for it to be called back to back while pstorage events have not cleared.

[Petter Myhre]

I don't understand how this error is returned from pstorage_store(). It returns 0x00000003 right?

[Dave_couling]

Yes that is the error response, but on the debugger is only appears as 0x3

[Dave_couling]

We see it mostly on a single chip. I'm very hesitant to say its a defective chip. Though our app does do alot of Flash Write/Loads on small data sets. FYI HWID for the chip is 0xFFFF0072

This is the same HWID as the other chips we've seen this error with.

[Petter Myhre]

I'm sorry, but I still don't see how pstorage_store() can return this error. Could you upload a screenshot of hitting a breakpoint with this error?

[Dave_couling]

I added a screen shot of hitting this breakpoint