X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=blktrace.c;h=36a7180930d0f23bf036922820a7901f165a15c9;hp=cda111a3a391c0ce2325a22576938cfb2d9f5c41;hb=5d665e96ca02da02210606c3eed0489f78f06310;hpb=b153f94a22d86ab342b7cc7a0f1fa5051311f2b4

diff --git a/blktrace.c b/blktrace.c
index cda111a3..36a71809 100644
--- a/blktrace.c
+++ b/blktrace.c
@@ -303,6 +303,11 @@ static void handle_trace_discard(struct thread_data *td,
 	queue_io_piece(td, ipo);
 }
 
+static void dump_trace(struct blk_io_trace *t)
+{
+	log_err("blktrace: ignoring zero byte trace: action=%x\n", t->action);
+}
+
 static void handle_trace_fs(struct thread_data *td, struct blk_io_trace *t,
 			    unsigned long long ttime, unsigned long *ios,
 			    unsigned int *rw_bs)
@@ -323,7 +328,11 @@ static void handle_trace_fs(struct thread_data *td, struct blk_io_trace *t,
 			return;
 	}
 
-	assert(t->bytes);
+	if (!t->bytes) {
+		if (!fio_did_warn(FIO_WARN_BTRACE_ZERO))
+			dump_trace(t);
+		return;
+	}
 
 	if (t->bytes > rw_bs[rw])
 		rw_bs[rw] = t->bytes;