Changes When Setting and Clearing a Barrier Point

Setting a barrier point at the current PC for a stopped process or thread holds the process there. If, however, all other processes or threads affected by the barrier point are at the same PC, TotalView does not hold them. Instead, TotalView treats the barrier point as if it was an ordinary breakpoint.

All processes and threads that are held and which have threads at the barrier point are released when you clear the barrier point. They remain stopped but are no longer held. You can clear the barrier breakpoint in the Action Point > Properties dialog box by clicking on Clear at the bottom of the dialog box.