commit - 2b4b2ae19107f2c7e45ca6ab6f73c9c8a5fb84dd
commit + fb36ed82ec7470efe4e334ddc054bcb4fa06ae9e
blob - 57d597baf4ae1887f8bab9aede2e6f00ac7cff5d
blob + 9ad7298b251835df505807d2d65656f66f718690
--- src/libthread/sched.c
+++ src/libthread/sched.c
q->head = t->next;
unlock(&p->readylock);
return t;
+}
+
+void
+needstack(int howmuch)
+{
+ Proc *p;
+ Thread *t;
+
+ p = _threadgetproc();
+ if(p == nil || (t=p->thread) == nil)
+ return;
+ if((ulong)&howmuch < (ulong)t->stk+howmuch){ /* stack overflow waiting to happen */
+ fprint(2, "stack overflow: stack at 0x%lux, limit at 0x%lux, need 0x%lux\n", (ulong)&p, (ulong)t->stk, howmuch);
+ abort();
+ }
}
void
p = _threadgetproc();
//fprint(2, "p %p\n", p);
if((t = p->thread) != nil){
- if((ulong)&p < (ulong)t->stk+512){ /* stack overflow waiting to happen */
- fprint(2, "stack overflow: stack at %lux, limit at %lux\n", (ulong)&p, (ulong)t->stk);
- abort();
- }
+ needstack(512);
// _threaddebug(DBGSCHED, "pausing, state=%s set %p goto %p",
// psstate(t->state), &t->sched, &p->sched);
if(_setlabel(&t->sched)==0)