svn commit: r314347 - in stable/11/sys: kern vm

[Andriy Gapon]

Author: avg
Date: Mon Feb 27 17:18:05 2017
New Revision: 314347
URL: https://svnweb.freebsd.org/changeset/base/314347

Log:
  MFC r313730: try to fix RACCT_RSS accounting

Modified:
  stable/11/sys/kern/kern_racct.c
  stable/11/sys/vm/vm_pageout.c
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/sys/kern/kern_racct.c
==============================================================================
--- stable/11/sys/kern/kern_racct.c	Mon Feb 27 17:12:17 2017	(r314346)
+++ stable/11/sys/kern/kern_racct.c	Mon Feb 27 17:18:05 2017	(r314347)
@@ -1014,10 +1014,13 @@ racct_proc_exit(struct proc *p)
 	racct_set_locked(p, RACCT_CPU, runtime, 0);
 	racct_add_cred_locked(p->p_ucred, RACCT_PCTCPU, pct);
 
+	KASSERT(p->p_racct->r_resources[RACCT_RSS] == 0,
+	    ("process reaped with %ju allocated for RSS\n",
+	    p->p_racct->r_resources[RACCT_RSS]));
 	for (i = 0; i <= RACCT_MAX; i++) {
 		if (p->p_racct->r_resources[i] == 0)
 			continue;
-	    	if (!RACCT_IS_RECLAIMABLE(i))
+		if (!RACCT_IS_RECLAIMABLE(i))
 			continue;
 		racct_set_locked(p, i, 0, 0);
 	}

Modified: stable/11/sys/vm/vm_pageout.c
==============================================================================
--- stable/11/sys/vm/vm_pageout.c	Mon Feb 27 17:12:17 2017	(r314346)
+++ stable/11/sys/vm/vm_pageout.c	Mon Feb 27 17:18:05 2017	(r314347)
@@ -1806,12 +1806,14 @@ again:
 			if (size >= limit) {
 				vm_pageout_map_deactivate_pages(
 				    &vm->vm_map, limit);
+				size = vmspace_resident_count(vm);
 			}
 #ifdef RACCT
 			if (racct_enable) {
 				rsize = IDX_TO_OFF(size);
 				PROC_LOCK(p);
-				racct_set(p, RACCT_RSS, rsize);
+				if (p->p_state == PRS_NORMAL)
+					racct_set(p, RACCT_RSS, rsize);
 				ravailable = racct_get_available(p, RACCT_RSS);
 				PROC_UNLOCK(p);
 				if (rsize > ravailable) {
@@ -1837,7 +1839,8 @@ again:
 					size = vmspace_resident_count(vm);
 					rsize = IDX_TO_OFF(size);
 					PROC_LOCK(p);
-					racct_set(p, RACCT_RSS, rsize);
+					if (p->p_state == PRS_NORMAL)
+						racct_set(p, RACCT_RSS, rsize);
 					PROC_UNLOCK(p);
 					if (rsize > ravailable)
 						tryagain = 1;