From: Ben Gras <ben@minix3.org>
Date: Thu, 29 Jan 2009 15:13:54 +0000 (+0000)
Subject: disable interrupts if necessary in kernel debug code to dump all process
X-Git-Tag: v3.1.4~119
X-Git-Url: http://zhaoyanbai.com/repos/?a=commitdiff_plain;h=113932905f96cb1bba9779e7c35dc43d1b9c774e;p=minix.git

disable interrupts if necessary in kernel debug code to dump all process
stacks.
---

diff --git a/kernel/arch/i386/system.c b/kernel/arch/i386/system.c
index 00e6bde35..6eaef954b 100644
--- a/kernel/arch/i386/system.c
+++ b/kernel/arch/i386/system.c
@@ -156,6 +156,10 @@ PRIVATE void ser_debug(int c)
 PUBLIC void ser_dump_proc()
 {
 	struct proc *pp;
+	int u = 0;
+
+	/* Disable interrupts so that we get a consistent state. */
+	if(!intr_disabled()) { lock; u = 1; };
 
 	for (pp= BEG_PROC_ADDR; pp < END_PROC_ADDR; pp++)
 	{
@@ -171,6 +175,8 @@ PUBLIC void ser_dump_proc()
 			pp->p_reg.pc);
 		proc_stacktrace(pp);
 	}
+
+	if(u) { unlock; }
 }
 
 PRIVATE void ser_dump_stats()