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deal with the proc_lock mutex.

This commit is contained in:
christos 2011-12-02 23:57:58 +00:00
parent 4aeefed6a9
commit d5b7cb3520
1 changed files with 6 additions and 3 deletions
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9
sys/ddb/db_xxx.c
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@ -1,4 +1,4 @@
/* $NetBSD: db_xxx.c,v 1.64 2011/06/12 03:35:51 rmind Exp $ */ /* $NetBSD: db_xxx.c,v 1.65 2011/12/02 23:57:58 christos Exp $ */
/* /*
* Copyright (c) 1982, 1986, 1989, 1991, 1993 * Copyright (c) 1982, 1986, 1989, 1991, 1993
@ -37,7 +37,7 @@
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: db_xxx.c,v 1.64 2011/06/12 03:35:51 rmind Exp $"); __KERNEL_RCSID(0, "$NetBSD: db_xxx.c,v 1.65 2011/12/02 23:57:58 christos Exp $");
#ifdef _KERNEL_OPT #ifdef _KERNEL_OPT
#include "opt_kgdb.h" #include "opt_kgdb.h"
@ -106,8 +106,11 @@ db_kill_proc(db_expr_t addr, bool haddr,
db_error("?\n"); db_error("?\n");
/*NOTREACHED*/ /*NOTREACHED*/
} }
/* We might stop when the mutex is held or when not */
t = mutex_tryenter(proc_lock);
p = proc_find((pid_t)pid); p = proc_find((pid_t)pid);
if (t)
mutex_exit(proc_lock);
if (p == NULL) { if (p == NULL) {
db_error("no such proc\n"); db_error("no such proc\n");
/*NOTREACHED*/ /*NOTREACHED*/