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From: Kip Macy <kmacy@FreeBSD.org>
To: Perforce Change Reviews <perforce@freebsd.org>
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Subject: PERFORCE change 132229 for review
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http://perforce.freebsd.org/chv.cgi?CH=132229

Change 132229 by kmacy@pandemonium:kmacy:xen31 on 2008/01/01 06:33:36

	allocate zeroed memory for initial structures
	we still only get interrupts on some of the boots :-(

Affected files ...

.. //depot/projects/xen31/sys/dev/xen/blkfront/blkfront.c#6 edit

Differences ...

==== //depot/projects/xen31/sys/dev/xen/blkfront/blkfront.c#6 (text+ko) ====

@@ -143,7 +143,7 @@
 	struct xb_softc	*sc;
 	int			error = 0;
     
-	sc = (struct xb_softc *)malloc(sizeof(*sc), M_DEVBUF, M_WAITOK);
+	sc = (struct xb_softc *)malloc(sizeof(*sc), M_DEVBUF, M_WAITOK|M_ZERO);
 	sc->xb_unit = unit;
 	sc->xb_info = info;
 	info->sc = sc;
@@ -352,7 +352,7 @@
 
 	info->ring_ref = GRANT_INVALID_REF;
 
-	sring = (blkif_sring_t *)malloc(PAGE_SIZE, M_DEVBUF, M_NOWAIT);
+	sring = (blkif_sring_t *)malloc(PAGE_SIZE, M_DEVBUF, M_NOWAIT|M_ZERO);
 	if (sring == NULL) {
 		xenbus_dev_fatal(dev, ENOMEM, "allocating shared ring");
 		return ENOMEM;
@@ -909,7 +909,7 @@
 	struct blk_shadow *copy;
 
 	/* Stage 1: Make a safe copy of the shadow state. */
-	copy = (struct blk_shadow *)malloc(sizeof(info->shadow), M_DEVBUF, M_NOWAIT);
+	copy = (struct blk_shadow *)malloc(sizeof(info->shadow), M_DEVBUF, M_NOWAIT|M_ZERO);
 	PANIC_IF(copy == NULL);
 	memcpy(copy, info->shadow, sizeof(info->shadow));