[src/trunk]: src/sys/kern In _pool_put(), panic if we're put'ing with nout ==...

[thorpej <thorpej%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/f1cc98bf769b
branches:  trunk
changeset: 475878:f1cc98bf769b
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Sun Aug 29 00:26:01 1999 +0000

description:
In _pool_put(), panic if we're put'ing with nout == 0.  This will help us
detect a little earlier if we've dup-put'd.  Otherwise, underflow occurs,
and subsequent allocations simply hang or fail (it thinks the hardlimit
has been reached).

diffstat:

 sys/kern/subr_pool.c |  10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)

diffs (24 lines):

diff -r 97c52401323f -r f1cc98bf769b sys/kern/subr_pool.c
--- a/sys/kern/subr_pool.c      Sat Aug 28 22:28:35 1999 +0000
+++ b/sys/kern/subr_pool.c      Sun Aug 29 00:26:01 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: subr_pool.c,v 1.29 1999/08/05 04:00:04 sommerfeld Exp $        */
+/*     $NetBSD: subr_pool.c,v 1.30 1999/08/29 00:26:01 thorpej Exp $   */
 
 /*-
  * Copyright (c) 1997, 1999 The NetBSD Foundation, Inc.
@@ -831,6 +831,14 @@
        simple_lock(&pp->pr_slock);
        pr_enter(pp, file, line);
 
+#ifdef DIAGNOSTIC
+       if (pp->pr_nout == 0) {
+               printf("pool %s: putting with none out\n",
+                   pp->pr_wchan);
+               panic("pool_put");
+       }
+#endif
+
        pr_log(pp, v, PRLOG_PUT, file, line);
 
        if ((ph = pr_find_pagehead(pp, page)) == NULL) {