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call spl0() before cpu_reboot(), so that there's a chance that: 

- interrupts can work afterwards
- this also means if IO stalls, serial break might work again.

this mimics how reboot(2) ends up calling cpu_reboot().
This commit is contained in:
mrg 2018-09-15 08:48:18 +00:00
parent 3ea8e2fb39
commit e8bf3d6996
1 changed files with 4 additions and 2 deletions
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6
sys/ddb/db_command.c
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@ -1,4 +1,4 @@
/* $NetBSD: db_command.c,v 1.157 2018/09/13 01:55:16 mrg Exp $ */
/* $NetBSD: db_command.c,v 1.158 2018/09/15 08:48:18 mrg Exp $ */
/*
* Copyright (c) 1996, 1997, 1998, 1999, 2002, 2009 The NetBSD Foundation, Inc.
@ -60,7 +60,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: db_command.c,v 1.157 2018/09/13 01:55:16 mrg Exp $");
__KERNEL_RCSID(0, "$NetBSD: db_command.c,v 1.158 2018/09/15 08:48:18 mrg Exp $");
#ifdef _KERNEL_OPT
#include "opt_aio.h"
@ -1355,6 +1355,8 @@ db_reboot_cmd(db_expr_t addr, bool have_addr,
/* Avoid all mutex errors */
lockdebug_dismiss();
panicstr = "reboot forced via kernel debugger";
/* Make it possible to break into the debugger again */
spl0();
cpu_reboot((int)bootflags, NULL);
#else /* _KERNEL */
db_printf("This command can only be used in-kernel.\n");