diff --git a/contrib/debug/Makefile b/contrib/debug/Makefile
new file mode 100644
index 000000000..74e7547e0
--- /dev/null
+++ b/contrib/debug/Makefile
@@ -0,0 +1,12 @@
+INCLUDE  = -I../../include -I../../ebtree
+
+CC       = gcc
+OPTIMIZE = -O2
+DEFINE   =
+OBJS     = flags
+
+flags: flags.c
+	$(CC) $(OPTIMIZE) $(DEFINE) $(INCLUDE) -o $@ $^
+
+clean:
+	rm -f $(OBJS) *.[oas] *~
diff --git a/contrib/debug/flags.c b/contrib/debug/flags.c
new file mode 100644
index 000000000..3ad462fb1
--- /dev/null
+++ b/contrib/debug/flags.c
@@ -0,0 +1,366 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <types/channel.h>
+#include <types/connection.h>
+#include <types/proto_http.h>
+#include <types/stream.h>
+#include <types/stream_interface.h>
+#include <types/task.h>
+
+#define SHOW_FLAG(f,n)					\
+	do {				 		\
+		if (!((f) & (n))) break; 		\
+		(f) &= ~(n);				\
+		printf(#n"%s", (f) ? " | " : "");	\
+	} while (0)
+
+void show_chn_ana(unsigned int f)
+{
+	printf("chn->ana    = ");
+
+	if (!f) {
+		printf("0\n");
+		return;
+	}
+
+	SHOW_FLAG(f, AN_REQ_INSPECT_FE);
+	SHOW_FLAG(f, AN_REQ_WAIT_HTTP);
+	SHOW_FLAG(f, AN_REQ_HTTP_BODY);
+	SHOW_FLAG(f, AN_REQ_HTTP_PROCESS_FE);
+	SHOW_FLAG(f, AN_REQ_SWITCHING_RULES);
+	SHOW_FLAG(f, AN_REQ_INSPECT_BE);
+	SHOW_FLAG(f, AN_REQ_HTTP_PROCESS_BE);
+	SHOW_FLAG(f, AN_REQ_SRV_RULES);
+	SHOW_FLAG(f, AN_REQ_HTTP_INNER);
+	SHOW_FLAG(f, AN_REQ_HTTP_TARPIT);
+	SHOW_FLAG(f, AN_REQ_STICKING_RULES);
+	SHOW_FLAG(f, AN_REQ_PRST_RDP_COOKIE);
+	SHOW_FLAG(f, AN_REQ_HTTP_XFER_BODY);
+	SHOW_FLAG(f, AN_REQ_ALL);
+	SHOW_FLAG(f, AN_RES_INSPECT);
+	SHOW_FLAG(f, AN_RES_WAIT_HTTP);
+	SHOW_FLAG(f, AN_RES_HTTP_PROCESS_BE);
+	SHOW_FLAG(f, AN_RES_HTTP_PROCESS_FE);
+	SHOW_FLAG(f, AN_RES_STORE_RULES);
+	SHOW_FLAG(f, AN_RES_HTTP_XFER_BODY);
+
+	if (f) {
+		printf("EXTRA(0x%08x)", f);
+	}
+	putchar('\n');
+}
+
+void show_chn_flags(unsigned int f)
+{
+	printf("chn->flags  = ");
+
+	if (!f) {
+		printf("0\n");
+		return;
+	}
+
+	SHOW_FLAG(f, CF_ISRESP);
+	SHOW_FLAG(f, CF_WAKE_ONCE);
+	SHOW_FLAG(f, CF_NEVER_WAIT);
+	SHOW_FLAG(f, CF_SEND_DONTWAIT);
+	SHOW_FLAG(f, CF_EXPECT_MORE);
+	SHOW_FLAG(f, CF_DONT_READ);
+	SHOW_FLAG(f, CF_AUTO_CONNECT);
+	SHOW_FLAG(f, CF_READ_DONTWAIT);
+	SHOW_FLAG(f, CF_KERN_SPLICING);
+	SHOW_FLAG(f, CF_READ_ATTACHED);
+	SHOW_FLAG(f, CF_ANA_TIMEOUT);
+	SHOW_FLAG(f, CF_WROTE_DATA);
+	SHOW_FLAG(f, CF_STREAMER_FAST);
+	SHOW_FLAG(f, CF_STREAMER);
+	SHOW_FLAG(f, CF_AUTO_CLOSE);
+	SHOW_FLAG(f, CF_SHUTW_NOW);
+	SHOW_FLAG(f, CF_SHUTW);
+	SHOW_FLAG(f, CF_WAKE_WRITE);
+	SHOW_FLAG(f, CF_WRITE_ERROR);
+	SHOW_FLAG(f, CF_WRITE_TIMEOUT);
+	SHOW_FLAG(f, CF_WRITE_PARTIAL);
+	SHOW_FLAG(f, CF_WRITE_NULL);
+	SHOW_FLAG(f, CF_READ_NOEXP);
+	SHOW_FLAG(f, CF_SHUTR_NOW);
+	SHOW_FLAG(f, CF_SHUTR);
+	SHOW_FLAG(f, CF_WAKE_CONNECT);
+	SHOW_FLAG(f, CF_READ_ERROR);
+	SHOW_FLAG(f, CF_READ_TIMEOUT);
+	SHOW_FLAG(f, CF_READ_PARTIAL);
+	SHOW_FLAG(f, CF_READ_NULL);
+
+	if (f) {
+		printf("EXTRA(0x%08x)", f);
+	}
+	putchar('\n');
+}
+
+void show_conn_flags(unsigned int f)
+{
+	printf("conn->flags = ");
+	if (!f) {
+		printf("0\n");
+		return;
+	}
+
+	SHOW_FLAG(f, CO_FL_XPRT_TRACKED);
+	SHOW_FLAG(f, CO_FL_PRIVATE);
+	SHOW_FLAG(f, CO_FL_ACCEPT_PROXY);
+	SHOW_FLAG(f, CO_FL_SSL_WAIT_HS);
+	SHOW_FLAG(f, CO_FL_SEND_PROXY);
+	SHOW_FLAG(f, CO_FL_WAIT_L6_CONN);
+	SHOW_FLAG(f, CO_FL_WAIT_L4_CONN);
+	SHOW_FLAG(f, CO_FL_CONNECTED);
+	SHOW_FLAG(f, CO_FL_ERROR);
+	SHOW_FLAG(f, CO_FL_SOCK_WR_SH);
+	SHOW_FLAG(f, CO_FL_SOCK_RD_SH);
+	SHOW_FLAG(f, CO_FL_DATA_WR_SH);
+	SHOW_FLAG(f, CO_FL_DATA_RD_SH);
+	SHOW_FLAG(f, CO_FL_WAKE_DATA);
+	SHOW_FLAG(f, CO_FL_INIT_DATA);
+	SHOW_FLAG(f, CO_FL_ADDR_TO_SET);
+	SHOW_FLAG(f, CO_FL_ADDR_FROM_SET);
+	SHOW_FLAG(f, CO_FL_WAIT_ROOM);
+	SHOW_FLAG(f, CO_FL_WAIT_DATA);
+	SHOW_FLAG(f, CO_FL_XPRT_READY);
+	SHOW_FLAG(f, CO_FL_CTRL_READY);
+	SHOW_FLAG(f, CO_FL_CURR_WR_ENA);
+	SHOW_FLAG(f, CO_FL_DATA_WR_ENA);
+	SHOW_FLAG(f, CO_FL_SOCK_WR_ENA);
+	SHOW_FLAG(f, CO_FL_CURR_RD_ENA);
+	SHOW_FLAG(f, CO_FL_DATA_RD_ENA);
+	SHOW_FLAG(f, CO_FL_SOCK_RD_ENA);
+
+	if (f) {
+		printf("EXTRA(0x%08x)", f);
+	}
+	putchar('\n');
+}
+
+void show_si_et(unsigned int f)
+{
+	printf("si->et      = ");
+	if (!f) {
+		printf("SI_ET_NONE\n");
+		return;
+	}
+
+	SHOW_FLAG(f, SI_ET_QUEUE_TO);
+	SHOW_FLAG(f, SI_ET_QUEUE_ERR);
+	SHOW_FLAG(f, SI_ET_QUEUE_ABRT);
+	SHOW_FLAG(f, SI_ET_CONN_TO);
+	SHOW_FLAG(f, SI_ET_CONN_ERR);
+	SHOW_FLAG(f, SI_ET_CONN_ABRT);
+	SHOW_FLAG(f, SI_ET_CONN_RES);
+	SHOW_FLAG(f, SI_ET_CONN_OTHER);
+	SHOW_FLAG(f, SI_ET_DATA_TO);
+	SHOW_FLAG(f, SI_ET_DATA_ERR);
+	SHOW_FLAG(f, SI_ET_DATA_ABRT);
+
+	if (f) {
+		printf("EXTRA(0x%08x)", f);
+	}
+	putchar('\n');
+}
+
+void show_si_flags(unsigned int f)
+{
+	f &= 0xFFFF;
+
+	printf("si->flags   = ");
+	if (!f) {
+		printf("SI_FL_NONE\n");
+		return;
+	}
+
+	SHOW_FLAG(f, SI_FL_EXP);
+	SHOW_FLAG(f, SI_FL_ERR);
+	SHOW_FLAG(f, SI_FL_WAIT_ROOM);
+	SHOW_FLAG(f, SI_FL_WAIT_DATA);
+	SHOW_FLAG(f, SI_FL_ISBACK);
+	SHOW_FLAG(f, SI_FL_DONT_WAKE);
+	SHOW_FLAG(f, SI_FL_INDEP_STR);
+	SHOW_FLAG(f, SI_FL_NOLINGER);
+	SHOW_FLAG(f, SI_FL_NOHALF);
+	SHOW_FLAG(f, SI_FL_SRC_ADDR);
+	SHOW_FLAG(f, SI_FL_WANT_PUT);
+	SHOW_FLAG(f, SI_FL_WANT_GET);
+
+	if (f) {
+		printf("EXTRA(0x%04x)", f);
+	}
+	putchar('\n');
+}
+
+void show_task_state(unsigned int f)
+{
+	printf("task->state = ");
+
+	if (!f) {
+		printf("TASK_SLEEPING\n");
+		return;
+	}
+
+	SHOW_FLAG(f, TASK_WOKEN_OTHER);
+	SHOW_FLAG(f, TASK_WOKEN_RES);
+	SHOW_FLAG(f, TASK_WOKEN_MSG);
+	SHOW_FLAG(f, TASK_WOKEN_SIGNAL);
+	SHOW_FLAG(f, TASK_WOKEN_IO);
+	SHOW_FLAG(f, TASK_WOKEN_TIMER);
+	SHOW_FLAG(f, TASK_WOKEN_INIT);
+	SHOW_FLAG(f, TASK_RUNNING);
+
+	if (f) {
+		printf("EXTRA(0x%08x)", f);
+	}
+	putchar('\n');
+}
+
+void show_txn_flags(unsigned int f)
+{
+	printf("txn->flags  = ");
+
+	if (!f) {
+		printf("0\n");
+		return;
+	}
+
+	SHOW_FLAG(f, TX_NOT_FIRST);
+	SHOW_FLAG(f, TX_USE_PX_CONN);
+	SHOW_FLAG(f, TX_HDR_CONN_KAL);
+	SHOW_FLAG(f, TX_HDR_CONN_CLO);
+	SHOW_FLAG(f, TX_HDR_CONN_PRS);
+	SHOW_FLAG(f, TX_WAIT_NEXT_RQ);
+	SHOW_FLAG(f, TX_HDR_CONN_UPG);
+	SHOW_FLAG(f, TX_PREFER_LAST);
+	SHOW_FLAG(f, TX_CON_KAL_SET);
+	SHOW_FLAG(f, TX_CON_CLO_SET);
+
+	//printf("%s", f ? "" : " | ");
+	switch (f & TX_CON_WANT_MSK) {
+	case TX_CON_WANT_KAL: /*f &= ~TX_CON_WANT_MSK ; printf("TX_CON_WANT_KAL%s", f ? " | " : "");*/ break;
+	case TX_CON_WANT_TUN: f &= ~TX_CON_WANT_MSK ; printf("TX_CON_WANT_TUN%s", f ? " | " : ""); break;
+	case TX_CON_WANT_SCL: f &= ~TX_CON_WANT_MSK ; printf("TX_CON_WANT_SCL%s", f ? " | " : ""); break;
+	case TX_CON_WANT_CLO: f &= ~TX_CON_WANT_MSK ; printf("TX_CON_WANT_CLO%s", f ? " | " : ""); break;
+	}
+
+	SHOW_FLAG(f, TX_CACHE_COOK);
+	SHOW_FLAG(f, TX_CACHEABLE);
+	SHOW_FLAG(f, TX_SCK_PRESENT);
+
+	//printf("%s", f ? "" : " | ");
+	switch (f & TX_SCK_MASK) {
+	case TX_SCK_NONE:                        f &= ~TX_SCK_MASK ; /*printf("TX_SCK_NONE%s",     f ? " | " : "");*/ break;
+	case TX_SCK_FOUND:                       f &= ~TX_SCK_MASK ; printf("TX_SCK_FOUND%s",    f ? " | " : ""); break;
+	case TX_SCK_DELETED:                     f &= ~TX_SCK_MASK ; printf("TX_SCK_DELETED%s",  f ? " | " : ""); break;
+	case TX_SCK_INSERTED:                    f &= ~TX_SCK_MASK ; printf("TX_SCK_INSERTED%s", f ? " | " : ""); break;
+	case TX_SCK_REPLACED:                    f &= ~TX_SCK_MASK ; printf("TX_SCK_REPLACED%s", f ? " | " : ""); break;
+	case TX_SCK_UPDATED:                     f &= ~TX_SCK_MASK ; printf("TX_SCK_UPDATED%s",  f ? " | " : ""); break;
+	default: printf("TX_SCK_MASK(%02x)", f); f &= ~TX_SCK_MASK ; printf("%s",                f ? " | " : ""); break;
+	}
+
+	//printf("%s", f ? "" : " | ");
+	switch (f & TX_CK_MASK) {
+	case TX_CK_NONE:                        f &= ~TX_CK_MASK ; /*printf("TX_CK_NONE%s",    f ? " | " : "");*/ break;
+	case TX_CK_INVALID:                     f &= ~TX_CK_MASK ; printf("TX_CK_INVALID%s", f ? " | " : ""); break;
+	case TX_CK_DOWN:                        f &= ~TX_CK_MASK ; printf("TX_CK_DOWN%s",    f ? " | " : ""); break;
+	case TX_CK_VALID:                       f &= ~TX_CK_MASK ; printf("TX_CK_VALID%s",   f ? " | " : ""); break;
+	case TX_CK_EXPIRED:                     f &= ~TX_CK_MASK ; printf("TX_CK_EXPIRED%s", f ? " | " : ""); break;
+	case TX_CK_OLD:                         f &= ~TX_CK_MASK ; printf("TX_CK_OLD%s",     f ? " | " : ""); break;
+	case TX_CK_UNUSED:                      f &= ~TX_CK_MASK ; printf("TX_CK_UNUSED%s",  f ? " | " : ""); break;
+	default: printf("TX_CK_MASK(%02x)", f); f &= ~TX_CK_MASK ; printf("%s",              f ? " | " : ""); break;
+	}
+
+	SHOW_FLAG(f, TX_CLTARPIT);
+	SHOW_FLAG(f, TX_SVALLOW);
+	SHOW_FLAG(f, TX_SVDENY);
+	SHOW_FLAG(f, TX_CLALLOW);
+	SHOW_FLAG(f, TX_CLDENY);
+
+	if (f) {
+		printf("EXTRA(0x%08x)", f);
+	}
+	putchar('\n');
+}
+
+void show_strm_flags(unsigned int f)
+{
+	printf("strm->flags = ");
+
+	if (!f) {
+		printf("0\n");
+		return;
+	}
+
+	SHOW_FLAG(f, SF_SRV_REUSED);
+	SHOW_FLAG(f, SF_COMP_READY);
+	SHOW_FLAG(f, SF_IGNORE_PRST);
+
+	//printf("%s", f ? "" : " | ");
+	switch (f & SF_FINST_MASK) {
+	case SF_FINST_R: f &= ~SF_FINST_MASK ; printf("SF_FINST_R%s", f ? " | " : ""); break;
+	case SF_FINST_C: f &= ~SF_FINST_MASK ; printf("SF_FINST_C%s", f ? " | " : ""); break;
+	case SF_FINST_H: f &= ~SF_FINST_MASK ; printf("SF_FINST_H%s", f ? " | " : ""); break;
+	case SF_FINST_D: f &= ~SF_FINST_MASK ; printf("SF_FINST_D%s", f ? " | " : ""); break;
+	case SF_FINST_L: f &= ~SF_FINST_MASK ; printf("SF_FINST_L%s", f ? " | " : ""); break;
+	case SF_FINST_Q: f &= ~SF_FINST_MASK ; printf("SF_FINST_Q%s", f ? " | " : ""); break;
+	case SF_FINST_T: f &= ~SF_FINST_MASK ; printf("SF_FINST_T%s", f ? " | " : ""); break;
+	}
+
+	switch (f & SF_ERR_MASK) {
+	case SF_ERR_LOCAL:    f &= ~SF_ERR_MASK ; printf("SF_ERR_LOCAL%s",    f ? " | " : ""); break;
+	case SF_ERR_CLITO:    f &= ~SF_ERR_MASK ; printf("SF_ERR_CLITO%s",    f ? " | " : ""); break;
+	case SF_ERR_CLICL:    f &= ~SF_ERR_MASK ; printf("SF_ERR_CLICL%s",    f ? " | " : ""); break;
+	case SF_ERR_SRVTO:    f &= ~SF_ERR_MASK ; printf("SF_ERR_SRVTO%s",    f ? " | " : ""); break;
+	case SF_ERR_SRVCL:    f &= ~SF_ERR_MASK ; printf("SF_ERR_SRVCL%s",    f ? " | " : ""); break;
+	case SF_ERR_PRXCOND:  f &= ~SF_ERR_MASK ; printf("SF_ERR_PRXCOND%s",  f ? " | " : ""); break;
+	case SF_ERR_RESOURCE: f &= ~SF_ERR_MASK ; printf("SF_ERR_RESOURCE%s", f ? " | " : ""); break;
+	case SF_ERR_INTERNAL: f &= ~SF_ERR_MASK ; printf("SF_ERR_INTERNAL%s", f ? " | " : ""); break;
+	case SF_ERR_DOWN:     f &= ~SF_ERR_MASK ; printf("SF_ERR_DOWN%s",     f ? " | " : ""); break;
+	case SF_ERR_KILLED:   f &= ~SF_ERR_MASK ; printf("SF_ERR_KILLED%s",   f ? " | " : ""); break;
+	case SF_ERR_UP:       f &= ~SF_ERR_MASK ; printf("SF_ERR_UP%s",       f ? " | " : ""); break;
+	}
+
+	SHOW_FLAG(f, SF_TUNNEL);
+	SHOW_FLAG(f, SF_REDIRECTABLE);
+	SHOW_FLAG(f, SF_CONN_TAR);
+	SHOW_FLAG(f, SF_REDISP);
+	SHOW_FLAG(f, SF_INITIALIZED);
+	SHOW_FLAG(f, SF_CURR_SESS);
+	SHOW_FLAG(f, SF_MONITOR);
+	SHOW_FLAG(f, SF_FORCE_PRST);
+	SHOW_FLAG(f, SF_BE_ASSIGNED);
+	SHOW_FLAG(f, SF_ADDR_SET);
+	SHOW_FLAG(f, SF_ASSIGNED);
+	SHOW_FLAG(f, SF_DIRECT);
+
+	if (f) {
+		printf("EXTRA(0x%08x)", f);
+	}
+	putchar('\n');
+}
+
+int main(int argc, char **argv)
+{
+	unsigned int flags;
+
+	if (argc < 2) {
+		fprintf(stderr, "Usage: %s 0x<flags|state>\n", argv[0]);
+		exit(1);
+	}
+
+	flags = strtoul(argv[1], NULL, 0);
+
+	show_task_state(flags);
+	show_txn_flags(flags);
+	show_strm_flags(flags);
+	show_si_et(flags);
+	show_si_flags(flags);
+	show_conn_flags(flags);
+	show_chn_flags(flags);
+	show_chn_ana(flags);
+
+	return 0;
+}