One of the recent refactoring patches (commit f50f88b9) didn't take care
to initialise l2meta properly, so with zero-length writes, which don't
even enter the write loop, qemu just segfaulted.
Signed-off-by: Kevin Wolf <kw...@redhat.com>
---
block/qcow2.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/block/qcow2.c b/block/qcow2.c
index 76c86a7..9c64917 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -759,7 +759,7 @@ static coroutine_fn int qcow2_co_writev(BlockDriverState
*bs,
QEMUIOVector hd_qiov;
uint64_t bytes_done = 0;
uint8_t *cluster_data = NULL;
- QCowL2Meta *l2meta;
+ QCowL2Meta *l2meta = NULL;
trace_qcow2_writev_start_req(qemu_coroutine_self(), sector_num,
remaining_sectors);
--
1.7.6.5
