From 5be0039ce9e22f140a29e167526c64c723c5be3c Mon Sep 17 00:00:00 2001
From: rtm <rtm>
Date: Thu, 10 Aug 2006 22:08:14 +0000
Subject: interrupts could be recursive since lapic_eoi() called before rti so
 fast interrupts overflow the kernel stack fix: cli() before lapic_eoi()

---
 ide.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'ide.c')

diff --git a/ide.c b/ide.c
index 67fb613..3532121 100644
--- a/ide.c
+++ b/ide.c
@@ -26,7 +26,7 @@ struct ide_request {
 };
 struct ide_request request[NREQUEST];
 int head, tail;
-struct spinlock ide_lock = { "ide" };
+struct spinlock ide_lock;
 
 int disk_channel;
 
@@ -46,6 +46,7 @@ ide_wait_ready(int check_error)
 void
 ide_init(void)
 {
+  initlock(&ide_lock, "ide");
   if (ncpu < 2) {
     panic ("ide_init: disk interrupt is going to the second  cpu\n");
   }
@@ -61,7 +62,6 @@ ide_intr(void)
   //  cprintf("cpu%d: ide_intr\n", cpu());
   wakeup(&request[tail]);
   release(&ide_lock);
-  lapic_eoi();
 }
 
 int
-- 
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