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In fill_kproc2(), testing p->p_stats != NULL doesn't do much good, 

instead test for (p->p_flag & I_INMEM), and don't access the U-area
(via p->p_stats) if that bit is clear.  Fixes the hangs people have
seen when the system is paging and the user runs top/ps/w.
This commit is contained in:
thorpej 2000-08-08 23:42:07 +00:00
parent 0dc8c1fb35
commit 414765c253
1 changed files with 2 additions and 2 deletions
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4
sys/kern/kern_sysctl.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_sysctl.c,v 1.75 2000/07/14 07:21:22 thorpej Exp $ */
/* $NetBSD: kern_sysctl.c,v 1.76 2000/08/08 23:42:07 thorpej Exp $ */
/*-
* Copyright (c) 1982, 1986, 1989, 1993
@ -1565,7 +1565,7 @@ fill_kproc2(p, ki)
ki->p_eflag |= EPROC_SLEADER;
/* XXX Is this double check necessary? */
if (P_ZOMBIE(p) || p->p_addr == NULL) {
if ((p->p_flag & P_INMEM) == 0 || P_ZOMBIE(p)) {
ki->p_uvalid = 0;
} else {
ki->p_uvalid = 1;