1998/0512/pc/trap.c (diff list | history)

1998/0401/sys/src/9/pc/trap.c:140,145 – 1998/0512/sys/src/9/pc/trap.c:140,153 (short | long | prev | next)
Debugging: check for stack overflow. Bug fix: don't schedule if active.exiting. rsc Fri Mar 4 12:44:25 2005
1997/0327		up->dbgreg = ureg;
1997/1101		}
1991/1112
1998/0512		{ ulong x, y; x = (ulong)&(m->stack[512]); y = (ulong)&mach; if(y < x) panic("trap: kstack %lux %lux", m->stack, y); }
1997/0327		v = ureg->trap; if(ctl = irqctl[v]){
1997/1101		if(ctl->isintr){
1998/0401/sys/src/9/pc/trap.c:158,165 – 1998/0512/sys/src/9/pc/trap.c:166,175
1998/0401		/* preemptive scheduling */ if(ctl->isintr && v != VectorTIMER && v != VectorCLOCK) if(up && up->state == Running && anyhigher()) sched();
1998/0512		if(up && up->state == Running) if(anyhigher()) if(!active.exiting) sched();
1991/0731		}
1997/0327		else if(v <= 16 && user){ spllo();