[Xen-devel] [PATCH] Disable watchdog in dump_registers

To:	Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject:	[Xen-devel] [PATCH] Disable watchdog in dump_registers
From:	Andrew Lyon <andrew.lyon@xxxxxxxxx>
Date:	Sat, 12 Dec 2009 14:09:07 +0000
Delivery-date:	Sat, 12 Dec 2009 06:09:28 -0800
Dkim-signature:	v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:date:message-id:subject :from:to:content-type; bh=egRDzyO6U2EfjkUQp3wpaOrIQYVVYtfO6KZCJ2ks7O0=; b=DLQo6slUu3EJK/1N9TnwszdYjONBFrBPKxUqqlFede3gNgBBZ7ZiL3QWDUCloxPvFh OIRK7TA9ZNkUW0DprNMZnb3AFD47xpa9WqtQSiL38a2s/P2BwobTCNQJYhj8VQie3iyD /gxz/cZ/Db2jAii5n+rmBzXqbbEg1pjIdQT+c=
Domainkey-signature:	a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=jSZaLFH6lDvoVPPg2UPtjvSDPxXYAeyhiZUor9hwMfFC3R7VDgFX6kX5VEfWWJxK1x FBCnkCzbIjZ/EQu9M3353dwT2TtJ/qREncentAiXY8BohxYxtlaHQKeoFFIXapL8oC23 pmtOlvNf3jqJvTLR2Tmz+fEsguVHh85mqhHa0=
Envelope-to:	www-data@xxxxxxxxxxxxxxxxxxx
List-help:	<mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id:	Xen developer discussion <xen-devel.lists.xensource.com>
List-post:	<mailto:xen-devel@lists.xensource.com>
List-subscribe:	<http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe:	<http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Sender:	xen-devel-bounces@xxxxxxxxxxxxxxxxxxx

Add watchdog_disable/watchdog_enable around dump_registers to avoid trigging
watchdog if serial port output is slow.

Patch generated for xen-unstable but it will also apply to 3.4.2.

Signed-off-by: Andrew Lyon <andrew.lyon@xxxxxxxxx>

diff -r b928797213ac -r 12039f5ece78 xen/common/keyhandler.c
--- a/xen/common/keyhandler.c   Fri Dec 11 09:17:09 2009 +0000
+++ b/xen/common/keyhandler.c   Sat Dec 12 14:03:17 2009 +0000
@@ -87,6 +87,7 @@
     unsigned int cpu;

     /* We want to get everything out that we possibly can. */
+    watchdog_disable();
     console_start_sync();

     printk("'%c' pressed -> dumping registers\n", key);
@@ -106,6 +107,7 @@
     printk("\n");

     console_end_sync();
+    watchdog_enable();
 }

 static struct keyhandler dump_registers_keyhandler = {

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

WARNING - OLD ARCHIVES

xen-devel

[Xen-devel] [PATCH] Disable watchdog in dump_registers