X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=src%2Frrd_open.c;h=7c508ff27cfda33ed9bab64c7b65fae9e4e0a8e8;hp=5f3723f30cef086d44c6bab4a3c434b1d74e6507;hb=13d7a72e157462f61aa90d3352479c0b4180e069;hpb=bb288b1f7ffdb886160ca7b4f332db42b1c7578e

diff --git a/src/rrd_open.c b/src/rrd_open.c
index 5f3723f..7c508ff 100644
--- a/src/rrd_open.c
+++ b/src/rrd_open.c
@@ -671,7 +671,7 @@ ssize_t rrd_write(
     
     if((rrd_file->pos + count) > old_size)
     {
-        rrd_set_error("attempting to write beyond end of file");
+        rrd_set_error("attempting to write beyond end of file (%ld + %ld > %ld)",rrd_file->pos, count, old_size);
         return -1;
     }
     memcpy(rrd_simple_file->file_start + rrd_file->pos, buf, count);