User1: hi
User2: goddauy!
User1: I have been chasing down this problem :
User1: https://lists.ubuntu.com/archives/edubuntu-users/2008-December/004911.html
User1: hardy DHCP problem with  not more than 4-5 clinets booting up..
User1: which I have seen in our lab ...
User1: other folks have seen this problem too ...
User1: alkisg here suggested a few days ago to replace cdhcp3 server with dnsmasq which I did ...
User1: things are a bit better now ..though the problem still happens ...
User1: I have managed to tack down exactly when the server stops /slows response to DHCP client requests ..
User2: sorry, can't help you on that one!
User1: It happpens as sson as the first client reaches the login screen ..
User1: and this starts in the kernel logs :
User1: Aug 14 18:38:08 91.69.162.6 kernel: Inspecting /boot/System.map-2.6.24-19-generic
User1: Aug 14 18:38:58 91.69.162.6 kernel: Loaded 27883 symbols from /boot/System.map-2.6.24-19-generic.
User1: Aug 14 18:39:23 91.69.162.6 kernel: Symbols match kernel version 2.6.24.
User1: Aug 14 18:39:48 91.69.162.6 kernel: Inspecting /boot/System.map-2.6.24-19-generic
User1: Aug 14 18:40:13 91.69.162.6 kernel: Loaded 11587 symbols from 57 modules.
User1: Aug 14 18:40:38 91.69.162.6 kernel: [    0.000000] Initializing cgroup subsys cpuset
User1: Then DHCP gets hosed ...and the remaining clients do no boot any more ..
User3: mss, what does the dhcp log say?
User3: in /var/log/messages I believe
User1: User3 I pated the dhcp logs at http://pastebot.ltsp.org/477
User3: what options are u passing in pxe.0.cfg/default?
User1: standard dnsmasq config according to /usr/share/doc/ltsp-server/examples/dhcpd-dnsmasq
User1: I have not set any other special options...
User3: just that dhcp is complaining about some option
User1: what is this stuff going on in the kernel logs for each client and why is it so slow  ?
User3: anyway, #ltsp should be able to help u better
User1: thanks
User3: u dont have remote logging turned on by any chance
User3: ?
User1: how would I do that ?
User3: u'd set it in /etc/syslog.conf
User1: I did not change anything from standard edubuntu install ... should it be turned off ?
User3: by default yes
User3: u'd really notice dhcp slowing down to almost a halt
User1: User3 if remote logging is turned off will I have this problem :
User1: V
User1: http://www.ltsp.org/twiki/bin/view/Ltsp/TroubleShooting#syslogd_cannot_write_to_remote_f
User1: anyway ... will try it and see how it goes ..
User1: thanks
User4: test
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