Fstorage cause NMI exception in sdk 12.3.0

[cgha]

got the same fstorage issue as the following link described, in nrf51822, sdk 12.3.0.
My project both use the fds and fstorage and peer manager. But my flash operation is blocking mode, as this thread explained, this issue should not happen since he use nonblocking mode.

My flash operation process is as following:

fs_erase->waiting finish->fs_store->waiting finish.
https://devzone.nordicsemi.com/f/nordic-q-a/22034/possible-race-condition-in-fstorage-causes-nmi-interrupt

The following link is the Screenshot of the call stack.

https://pan.baidu.com/s/1RcG6hRBvevEGF3pfLiTK8Q

[bjorn-spockeli]

Hi Chris, 

Have you tried wrapping the the fs_store/fs_erase calls in critical sections as suggested in the post you're referring to?

It would also be useful to know a bit more about where in your code you're calling the fs_erase/fs_streo functions. Is it in mains context or in an interrupt context? 

Best regards

Bjørn