1990/0814/port/fault.c (diff list | history)

1990/0802/sys/src/9/port/fault.c:43,51 – 1990/0814/sys/src/9/port/fault.c:43,49 (short | long | prev | next)
1990/0227		/* grow stack */ o = s->o; n = o->npte;
1990/0802		lock(o); if(waserror()){ unlock(o); pprint("can't allocate stack page\n"); goto cant; }
1990/0802/sys/src/9/port/fault.c:52,57 – 1990/0814/sys/src/9/port/fault.c:50,56
1990/0227		growpte(o, (s->maxva-addr)>>PGSHIFT);
1990/0802		poperror();
1990/0227		/* stacks grown down, sigh */
1990/0814		lock(o);
1990/0227		memcpy(o->pte+(o->npte-n), o->pte, n*sizeof(PTE)); memset(o->pte, 0, (o->npte-n)*sizeof(PTE)); unlock(o);