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[K12OSN] LTSP Lab Slow to Boot



--- Begin Message ---
My LTSP clients take a long time to boot.  Some of the first ones boot in about a minute, but after about 8 or 9 are up, the others keep saying "No DHCP Offers Received."  If I leave them long enough, they eventually all boot.

Another clue:  It takes over a minute for the first sudo command to accept the root password.

Could someone please give me some suggestions?  Here's what I can tell you about the setup.

Edubuntu 8.04

SWITCH

SMC TigerSwitch 10/100 6128L2


CLIENTS

Lenovo machines with Intel processors


SERVER

mrc Ada:/proc$ cat cpuinfo 
processor	: 0
vendor_id	: AuthenticAMD
cpu family	: 15
model		: 107
model name	: AMD Athlon(tm) 64 X2 Dual Core Processor 4000+
stepping	: 1
cpu MHz		: 2101.332
cache size	: 512 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 2
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 1
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy 3dnowprefetch ts fid vid ttp tm stc 100mhzsteps
bogomips	: 4205.03
clflush size	: 64

processor	: 1
vendor_id	: AuthenticAMD
cpu family	: 15
model		: 107
model name	: AMD Athlon(tm) 64 X2 Dual Core Processor 4000+
stepping	: 1
cpu MHz		: 2101.332
cache size	: 512 KB
physical id	: 0
siblings	: 2
core id		: 1
cpu cores	: 2
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 1
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy 3dnowprefetch ts fid vid ttp tm stc 100mhzsteps
bogomips	: 4202.52
clflush size	: 64



mrc Ada:/proc$ ifconfig
eth0      Link encap:Ethernet  HWaddr 00:18:f8:0b:40:0d  
          inet addr:192.168.0.254  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::218:f8ff:fe0b:400d/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:253305 errors:0 dropped:0 overruns:0 frame:0
          TX packets:309896 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:46515129 (44.3 MB)  TX bytes:301639706 (287.6 MB)
          Interrupt:20 Base address:0xcc00 

eth1      Link encap:Ethernet  HWaddr 00:1d:60:b7:ad:a7  
          inet addr:169.157.241.64  Bcast:169.157.241.255  Mask:255.255.255.0
          inet6 addr: fe80::21d:60ff:feb7:ada7/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:8010 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1607 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1006100 (982.5 KB)  TX bytes:205995 (201.1 KB)
          Interrupt:19 Base address:0x4800 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:1063 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1063 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:56736 (55.4 KB)  TX bytes:56736 (55.4 KB)


mrc Ada:/proc$ cat loadavg 
0.09 0.14 0.06 4/626 16166
mrc Ada:/proc$ cat meminfo 
MemTotal:      3107580 kB
MemFree:       1828200 kB
Buffers:         27004 kB
Cached:         418752 kB
SwapCached:          0 kB
Active:         894940 kB
Inactive:       274108 kB
HighTotal:     2227904 kB
HighFree:      1065644 kB
LowTotal:       879676 kB
LowFree:        762556 kB
SwapTotal:     9100780 kB
SwapFree:      9100780 kB
Dirty:              48 kB
Writeback:           0 kB
AnonPages:      723452 kB
Mapped:          71072 kB
Slab:            37780 kB
SReclaimable:    17272 kB
SUnreclaim:      20508 kB
PageTables:      10208 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  10654568 kB
Committed_AS:  2302184 kB
VmallocTotal:   114680 kB
VmallocUsed:      8420 kB
VmallocChunk:   106148 kB
mrc Ada:/proc$ 


mrc Ada:/proc$ cat modules 
snd_rtctimer 4640 1 - Live 0xf8fff000
binfmt_misc 12808 1 - Live 0xf9040000
via 43648 2 - Live 0xf9010000
drm 82452 3 via, Live 0xf902a000
rfcomm 41744 2 - Live 0xf9004000
l2cap 25728 13 rfcomm, Live 0xf8fdb000
bluetooth 61156 4 rfcomm,l2cap, Live 0xf8fe6000
ppdev 10372 0 - Live 0xf8add000
cpufreq_stats 7104 0 - Live 0xf8ab7000
cpufreq_powersave 2688 0 - Live 0xf8867000
cpufreq_conservative 8712 0 - Live 0xf8ad9000
cpufreq_userspace 5284 0 - Live 0xf8ac5000
cpufreq_ondemand 9740 0 - Live 0xf8ad0000
freq_table 5536 2 cpufreq_stats,cpufreq_ondemand, Live 0xf8ac2000
video 19856 0 - Live 0xf8aca000
output 4736 1 video, Live 0xf8aba000
sbs 15112 0 - Live 0xf8abd000
sbshc 7680 1 sbs, Live 0xf8a97000
container 5632 0 - Live 0xf8a9a000
dock 11280 0 - Live 0xf8ab3000
battery 14212 0 - Live 0xf8aae000
iptable_filter 3840 0 - Live 0xf884e000
ip_tables 14820 1 iptable_filter, Live 0xf8a9d000
x_tables 16132 1 ip_tables, Live 0xf8a58000
ac 6916 0 - Live 0xf8a62000
parport_pc 36260 0 - Live 0xf8aa4000
lp 12324 0 - Live 0xf8a5d000
parport 37832 3 ppdev,parport_pc,lp, Live 0xf8a8c000
loop 18948 0 - Live 0xf8a3d000
af_packet 23812 4 - Live 0xf8a85000
ipv6 267780 64 - Live 0xf8b37000
usbhid 31872 0 - Live 0xf8a7c000
hid 38784 1 usbhid, Live 0xf8a71000
usblp 15872 0 - Live 0xf89f2000
evdev 13056 4 - Live 0xf8a2b000
snd_hda_intel 344728 5 - Live 0xf8ae1000
snd_pcm_oss 42144 0 - Live 0xf8a65000
snd_mixer_oss 17920 1 snd_pcm_oss, Live 0xf8a32000
snd_pcm 78596 2 snd_hda_intel,snd_pcm_oss, Live 0xf8a43000
snd_page_alloc 11400 2 snd_hda_intel,snd_pcm, Live 0xf89fb000
snd_hwdep 10500 1 snd_hda_intel, Live 0xf89f7000
snd_seq_dummy 4868 0 - Live 0xf89dc000
snd_seq_oss 35584 0 - Live 0xf8a21000
snd_seq_midi 9376 0 - Live 0xf89e0000
amd64_agp 13444 0 - Live 0xf89ed000
snd_rawmidi 25760 1 snd_seq_midi, Live 0xf89e5000
via_agp 11136 1 - Live 0xf8983000
button 9232 0 - Live 0xf89d3000
snd_seq_midi_event 8320 2 snd_seq_oss,snd_seq_midi, Live 0xf8987000
pcspkr 4224 0 - Live 0xf8980000
shpchp 34452 0 - Live 0xf89c9000
pci_hotplug 30880 1 shpchp, Live 0xf896f000
agpgart 34760 3 drm,amd64_agp,via_agp, Live 0xf898c000
snd_seq 54224 7 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event, Live 0xf89ba000
snd_timer 24836 3 snd_rtctimer,snd_pcm,snd_seq, Live 0xf8978000
snd_seq_device 9612 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq, Live 0xf8847000
snd 56996 23 snd_rtctimer,snd_hda_intel,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_hwdep,snd_seq_dummy,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device, Live 0xf8952000
soundcore 8800 1 snd, Live 0xf893a000
k8temp 6656 0 - Live 0xf889b000
ext3 136712 1 - Live 0xf8997000
jbd 48404 1 ext3, Live 0xf8962000
mbcache 9600 1 ext3, Live 0xf882b000
sr_mod 17956 0 - Live 0xf8941000
cdrom 37408 1 sr_mod, Live 0xf8947000
sg 36880 0 - Live 0xf8926000
sd_mod 30720 3 - Live 0xf8931000
pata_acpi 8320 0 - Live 0xf889f000
pata_via 13316 0 - Live 0xf8921000
ata_generic 8324 0 - Live 0xf8878000
r8169 32900 0 - Live 0xf8917000
uhci_hcd 27024 0 - Live 0xf8893000
via_rhine 26632 0 - Live 0xf888b000
mii 6400 1 via_rhine, Live 0xf884b000
ehci_hcd 37900 0 - Live 0xf8880000
usbcore 146028 5 usbhid,usblp,uhci_hcd,ehci_hcd, Live 0xf88f2000
sata_via 12420 2 - Live 0xf8862000
libata 159344 4 pata_acpi,pata_via,ata_generic,sata_via, Live 0xf88ca000
scsi_mod 151436 4 sr_mod,sg,sd_mod,libata, Live 0xf88a4000
thermal 16796 0 - Live 0xf885c000
processor 36872 1 thermal, Live 0xf8869000
fan 5636 0 - Live 0xf8844000
fbcon 42912 0 - Live 0xf8850000
tileblit 3456 1 fbcon, Live 0xf8833000
font 9472 1 fbcon, Live 0xf882f000
bitblit 6784 1 fbcon, Live 0xf8826000
softcursor 3072 1 bitblit, Live 0xf8829000
fuse 50708 19 - Live 0xf8836000
mrc Ada:/proc$ 




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