Package: isc-dhcp-client
Version: 4.1.1-P1-9
Severity: normal
Tags: patch
dhclient delays the first packet for up to five seconds for no good reason.
This is especially annoying on laptops because it increases the time from
suspend/resume (with the WiFi turned off) until the system is fully usable
again.
More information and a trivial patch [3] (also attached to this ticket) are
available from the Fedora bugtracker (ticket #587070 [1]). Upstream has
promised to remove the delay [2] several years ago but it's still there.
[1] https://bugzilla.redhat.com/show_bug.cgi?id=587070
[2] https://lists.isc.org/mailman/htdig/dhcp-users/2006-June/000933.html
[3]
https://bugzilla.redhat.com/attachment.cgi?id=409949&action=diff&context=patch&collapsed=&headers=1&format=raw
-- System Information:
Debian Release: squeeze/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: i386 (i686)
Kernel: Linux 2.6.31.6-xo1.5-2-00377-g7f5e423 (PREEMPT)
Locale: LANG=en_US, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages isc-dhcp-client depends on:
ii debianutils 3.4 Miscellaneous utilities specific t
ii isc-dhcp-common 4.1.1-P1-9 common files used by all the isc-d
ii libc6 2.11.2-2 Embedded GNU C Library: Shared lib
ii libssl0.9.8 0.9.8o-1 SSL shared libraries
isc-dhcp-client recommends no packages.
Versions of packages isc-dhcp-client suggests:
ii avahi-autoipd 0.6.26-1 Avahi IPv4LL network address confi
pn resolvconf <none> (no description available)
-- no debconf information
--- client/dhclient.c 2010/04/28 19:13:43 1.1
+++ client/dhclient.c 2010/04/28 19:17:01
@@ -594,9 +594,12 @@
else {
client->state = S_INIT;
/* Set up a timeout to start the
- * initialization process.
+ * initialization process,
+ * _immediately_, as agreed but never
+ * applied by the ISC upstream
+ https://lists.isc.org/mailman/htdig/dhcp-users/2006-June/thread.html#928
*/
- tv.tv_sec = cur_time + random() % 5;
+ tv.tv_sec = cur_time - 1;
tv.tv_usec = 0;
add_timeout(&tv, state_reboot,
client, 0, 0);
