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Disable the freecheck stuff atomically so we only get one warning about

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being out of slots.
This commit is contained in:
ad 2008-04-30 20:20:53 +00:00
parent 35d5de0433
commit ed84275d91
1 changed files with 8 additions and 7 deletions
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15
sys/kern/subr_debug.c
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@ -1,7 +1,7 @@
/* $NetBSD: subr_debug.c,v 1.6 2008/04/28 20:24:04 martin Exp $ */
/* $NetBSD: subr_debug.c,v 1.7 2008/04/30 20:20:53 ad Exp $ */
/*-
* Copyright (c) 2007 The NetBSD Foundation, Inc.
* Copyright (c) 2007, 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
@ -34,7 +34,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: subr_debug.c,v 1.6 2008/04/28 20:24:04 martin Exp $");
__KERNEL_RCSID(0, "$NetBSD: subr_debug.c,v 1.7 2008/04/30 20:20:53 ad Exp $");
#include "opt_ddb.h"
@ -43,11 +43,12 @@ __KERNEL_RCSID(0, "$NetBSD: subr_debug.c,v 1.6 2008/04/28 20:24:04 martin Exp $"
#include <sys/systm.h>
#include <sys/kmem.h>
#include <sys/debug.h>
#include <sys/atomic.h>
#include <sys/cpu.h>
#include <uvm/uvm_extern.h>
#include <machine/lock.h>
#include <sys/cpu.h>
/*
* Allocation/free validation by pointer address. Introduces
@ -63,7 +64,7 @@ typedef struct fcitem {
fcitem_t *freecheck_free;
__cpu_simple_lock_t freecheck_lock;
int debug_freecheck;
u_int debug_freecheck;
void
debug_init(void)
@ -116,8 +117,8 @@ freecheck_out(void **head, void *addr)
splx(s);
if (i == NULL) {
printf("freecheck_out: no more slots\n");
debug_freecheck = 0;
if (atomic_swap_uint(&debug_freecheck, 1) == 0)
printf("freecheck_out: no more slots\n");
}
}