diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/vm/vm_glue.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/sys/vm/vm_glue.c b/sys/vm/vm_glue.c index 62eaf52..4a2acba 100644 --- a/sys/vm/vm_glue.c +++ b/sys/vm/vm_glue.c @@ -59,7 +59,7 @@ * any improvements or extensions that they make and grant Carnegie the * rights to redistribute these changes. * - * $Id: vm_glue.c,v 1.24 1995/08/28 09:19:22 julian Exp $ + * $Id: vm_glue.c,v 1.25 1995/09/09 18:10:35 davidg Exp $ */ #include <sys/param.h> @@ -200,7 +200,7 @@ vm_fork(p1, p2, isvfork) { register struct user *up; vm_offset_t addr, ptaddr; - int i; + int error, i; struct vm_map *vp; while ((cnt.v_free_count + cnt.v_cache_count) < cnt.v_free_min) { @@ -235,10 +235,14 @@ vm_fork(p1, p2, isvfork) /* force in the page table encompassing the UPAGES */ ptaddr = trunc_page((u_int) vtopte(addr)); - vm_map_pageable(vp, ptaddr, ptaddr + NBPG, FALSE); + error = vm_map_pageable(vp, ptaddr, ptaddr + NBPG, FALSE); + if (error) + panic("vm_fork: wire of PT failed. error=%d", error); /* and force in (demand-zero) the UPAGES */ - vm_map_pageable(vp, addr, addr + UPAGES * NBPG, FALSE); + error = vm_map_pageable(vp, addr, addr + UPAGES * NBPG, FALSE); + if (error) + panic("vm_fork: wire of UPAGES failed. error=%d", error); /* get a kernel virtual address for the UPAGES for this proc */ up = (struct user *) kmem_alloc_pageable(u_map, UPAGES * NBPG); |
