From 340302e92d38ffeb5ed7dfe9b33cd6762ab3d53f Mon Sep 17 00:00:00 2001
From: Thomas Schoebel-Theuer <tst@1und1.de>
Date: Tue, 31 Jan 2012 14:05:18 +0100
Subject: [PATCH] fix internal state hang in mars_copy

---
 mars_copy.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mars_copy.c b/mars_copy.c
index 28a3a7cf..75619eef 100644
--- a/mars_copy.c
+++ b/mars_copy.c
@@ -119,6 +119,7 @@ void _clear_all_mref(struct copy_brick *brick)
 {
 	int i;
 	for (i = 0; i < MAX_COPY_PARA; i++) {
+		brick->st[i].state = COPY_STATE_START;
 		_clear_mref(brick, i, 0);
 		_clear_mref(brick, i, 1);
 	}
@@ -353,7 +354,7 @@ int _next_state(struct copy_brick *brick, int index, loff_t pos)
 		}
 		mref0 = st->table[0];
 		if (unlikely(!mref0)) {
-			MARS_ERR("src buffer for write does not exist");
+			MARS_ERR("src buffer for write does not exist, state %d at index %d\n", state, index);
 			status = -EILSEQ;
 			goto done;
 		}