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Code Issues Releases Activity

Effectively remove the previous commit to fix threads forking. The

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change was a false-start, and needs more work.
This commit is contained in:
John Dyson 1997-04-12 04:07:50 +00:00
parent c4c1e98233
commit c04b956c6f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=24830
1 changed files with 7 additions and 3 deletions
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10
sys/kern/kern_exec.c
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@ -23,7 +23,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: kern_exec.c,v 1.57 1997/04/04 09:06:20 davidg Exp $
* $Id: kern_exec.c,v 1.58 1997/04/11 23:37:23 dyson Exp $
*/
#include <sys/param.h>
@ -378,22 +378,26 @@ exec_new_vmspace(imgp)
* otherwise, create a new VM space so that other threads are
* not disrupted
*/
#if 0
if (vmspace->vm_refcnt == 1) {
#endif
if (vmspace->vm_shm)
shmexit(imgp->proc);
pmap_remove_pages(&vmspace->vm_pmap, 0, USRSTACK);
vm_map_remove(map, 0, USRSTACK);
#if 0
} else {
struct vmspace *oldvmspace = vmspace;
--vmspace->vm_refcnt;
vmspace = vmspace_alloc(map->min_offset, map->max_offset,
map->entries_pageable);
bcopy(&oldvmspace->vm_startcopy, &vmspace->vm_startcopy,
(caddr_t) (vmspace+ 1) - (caddr_t) &vmspace->vm_startcopy);
(caddr_t) (vmspace + 1) - (caddr_t) &vmspace->vm_startcopy);
imgp->proc->p_vmspace = vmspace;
map = &vmspace->vm_map;
--oldvmspace->vm_refcnt;
}
#endif
/* Allocate a new stack */
error = vm_map_find(map, NULL, 0, (vm_offset_t *)&stack_addr,