From: Michael S. Tsirkin <mst@redhat.com>
Date: Mon, 16 Nov 2015 11:55:53 +0000 (+0200)
Subject: vhost-user: print original request on error
X-Git-Tag: v2.5.0-rc1~3^2~10
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=5421f318ecc82294ad089fd54924df787b67c971;p=thirdparty%2Fqemu.git

vhost-user: print original request on error

When we get an unexpected response, print out
the original request.
Helps debug protocol errors tremendously.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---

diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c
index 3404b81edac..5bc6c45deeb 100644
--- a/hw/virtio/vhost-user.c
+++ b/hw/virtio/vhost-user.c
@@ -121,8 +121,8 @@ static int vhost_user_read(struct vhost_dev *dev, VhostUserMsg *msg)
 
     r = qemu_chr_fe_read_all(chr, p, size);
     if (r != size) {
-        error_report("Failed to read msg header. Read %d instead of %d.", r,
-                size);
+        error_report("Failed to read msg header. Read %d instead of %d."
+                     " Original request %d.", r, size, msg->request);
         goto fail;
     }