[libvirt] [PATCH 1/4] Add explicit warning messages when failing to serialize to XDR

When libvirtd fails to serialize a message to XDR the client connection is terminated immediately. To enable this to be diagnosed, log the message which caused the problem on the server * daemon/dispatch.c: Log XDR serialization failures --- daemon/dispatch.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/daemon/dispatch.c b/daemon/dispatch.c index 8f55eaa..9d1abc0 100644 --- a/daemon/dispatch.c +++ b/daemon/dispatch.c @@ -194,6 +194,8 @@ remoteSerializeError(struct qemud_client *client, return 0; xdr_error: + VIR_WARN("Failed to serialize remote error '%s' as XDR", + rerr->message ? *rerr->message : "<unknown>"); xdr_destroy(&xdr); VIR_FREE(msg); fatal_error: @@ -581,6 +583,8 @@ xdr_error: xdr_free (data->ret_filter, (char*)&ret); xdr_destroy (&xdr); fatal_error: + VIR_WARN("Failed to serialize reply for program '%d' proc '%d' as XDR", + msg->hdr.prog, msg->hdr.proc); return -1; } @@ -664,5 +668,7 @@ xdr_error: xdr_destroy (&xdr); fatal_error: VIR_FREE(msg); + VIR_WARN("Failed to serialize stream data for proc %d as XDR", + stream->procedure); return -1; } -- 1.7.2.1