diff options
Diffstat (limited to 'sys/amd64')
| -rw-r--r-- | sys/amd64/amd64/pmap.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/amd64/amd64/pmap.c b/sys/amd64/amd64/pmap.c index b41dfb0..b7c0d0f 100644 --- a/sys/amd64/amd64/pmap.c +++ b/sys/amd64/amd64/pmap.c @@ -816,19 +816,25 @@ pmap_new_proc(p) /* * allocate object for the upages */ + PROC_LOCK(p); if ((upobj = p->p_upages_obj) == NULL) { + PROC_UNLOCK(p); upobj = vm_object_allocate( OBJT_DEFAULT, UPAGES); + PROC_LOCK(p); p->p_upages_obj = upobj; } /* get a kernel virtual address for the UPAGES for this proc */ if ((up = p->p_addr) == NULL) { + PROC_UNLOCK(p); up = (struct user *) kmem_alloc_nofault(kernel_map, UPAGES * PAGE_SIZE); if (up == NULL) panic("pmap_new_proc: u_map allocation failed"); + PROC_LOCK(p); p->p_addr = up; } + PROC_UNLOCK(p); ptek = (unsigned *) vtopte((vm_offset_t) up); |
