Fault tolerance and reliability

Linux:

• While generally stable, a crash in a kernel module or driver can bring down the entire system due to its monolithic design.

• Fault isolation is limited, as most services run in kernel space.

QNX:

• Highly fault-tolerant due to its microkernel architecture and user-space resource managers.

• If a resource manager crashes, it can often be restarted without affecting the rest of the system, making QNX ideal for mission-critical applications.