Hello Rohit, can you please share more details? - how do you set up the debugger for SMP debugging? - what kind of single step do you perform (assembly or source-level single step)?

Hello again, I did not pay attention when writing my first reply to the attached screenshot. When in assembly level, single steps are only performed on the selected core. This behavior cannot be changed. Source level single steps are however performed on all cores. You can switch between assembly / mixed and source level view with the Mode command: Mode.Asm / Mode.Mix / Mode.Hll Please refer for more information to https://repo.lauterbach.com/pdf/training_debugger_smp.pdf chapters "Single Stepping on Assembler Level" and "Single Stepping on High-Level Language Level"