JTRC_MISC_MARKER  865 jdmarker.c         TRACEMS2(cinfo, 1, JTRC_MISC_MARKER, cinfo->unread_marker,
JTRC_MISC_MARKER  891 jdmarker.c       TRACEMS2(cinfo, 1, JTRC_MISC_MARKER, cinfo->unread_marker, (int) length);