From 6011443800897f4c694d0fb2def5b4ba41adcc4b Mon Sep 17 00:00:00 2001
From: Pawel Jakub Dawidek <pjd@FreeBSD.org>
Date: Wed, 26 Dec 2012 20:07:47 +0000
Subject: [PATCH] Reset provider-specific fields when resending I/O request in
 low memory conditions. This fixes assertion which checks those fields when
 kernel is compiled with DIAGNOSTIC.

Reported by:	kib, pho
MFC after:	1 week
---
 sys/geom/geom_io.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sys/geom/geom_io.c b/sys/geom/geom_io.c
index 0294887b402e..c6a5da8f8a60 100644
--- a/sys/geom/geom_io.c
+++ b/sys/geom/geom_io.c
@@ -567,6 +567,9 @@ g_io_deliver(struct bio *bp, int error)
 		printf("ENOMEM %p on %p(%s)\n", bp, pp, pp->name);
 	bp->bio_children = 0;
 	bp->bio_inbed = 0;
+	bp->bio_driver1 = NULL;
+	bp->bio_driver2 = NULL;
+	bp->bio_pflags = 0;
 	g_io_request(bp, cp);
 	pace++;
 	return;