Hi Peter, while testing the blockdev-add for NFS series, I noticed that apart from a few obvious false positives, qemu-iotests case 077 fails in a concerning way:
--- /home/kwolf/source/qemu/tests/qemu-iotests/077.out 2016-09-14 11:23:41.143593271 +0200 +++ 077.out.bad 2016-10-31 16:27:17.644705503 +0100 @@ -82,6 +82,7 @@ XXX bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) == Verify image content == +Pattern verification failed at offset 0, 512 bytes read 512/512 bytes at offset 0 512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) read 512/512 bytes at offset 512 Failures: 077 Is this failure known? If not, maybe someone should look into it as it appears to be data corruption at the first sight. (However, I don't want to completely rule out that blkdebug just behaves differently with NFS.) Kevin