Comment 0 for bug 584143

The -drive ...,serial=xyz option is broken, at least in 0.12. See Debian bug#573439, http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=573439 for details.

The proposed fix from the original reporter:

--- qemu-kvm-0.12.3+dfsg/vl.c 2010-02-26 11:34:00.000000000 +0900
+++ qemu-kvm-0.12.3+dfsg.old/vl.c 2010-03-11 02:26:00.134217787 +0900
@@ -2397,7 +2397,7 @@
     dinfo->on_write_error = on_write_error;
     dinfo->opts = opts;
     if (serial)
- strncpy(dinfo->serial, serial, sizeof(serial));
+ strncpy(dinfo->serial, serial, sizeof(dinfo->serial));
     QTAILQ_INSERT_TAIL(&drives, dinfo, next);
     if (is_extboot) {
         extboot_drive = dinfo;