[riot-notifications] [RIOT-OS/RIOT] Preemption of malloc on AVR (#10842)

Gunar Schorcht notifications at github.com
Wed Jan 23 17:34:52 CET 2019

The rmutex approach in __mallo_lock/unlock functions might not be working:

- It would not be possible to use malloc in ISRs.
- I'm not sure for AVR, but if interrupts are not disabled, a context switch might happen when returning from an ISR.

Maybe, __ malloc_lock/unlock functions should simply disable/enable interrupts.

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