[clug] What is it telling me?

[Algis Kabaila]

Hi,
Happy and prosperous New Year to all!

I need help to decipher "messages" from /var/log/ directory.  
The OS is kubuntu 10.10 on  a home assembled ("built") computer 
with nice big fans, spacious box, 4 GB RAM, immodestly named 
supremo. My user name is "ak" The following dialog shows what is 
known about the CPU:

ak at supremo:~$ sudo lscpu
[sudo] password for ak: 
Architecture:          i686
CPU op-mode(s):        64-bit
CPU(s):                4
Thread(s) per core:    1
Core(s) per socket:    4
CPU socket(s):         1
Vendor ID:             AuthenticAMD
CPU family:            16
Model:                 4
Stepping:              2
CPU MHz:               800.087
Virtualisation:        AMD-V
L1d cache:             64K
L1i cache:             64K
L2 cache:              512K
L3 cache:              6144K
ak at supremo:~$ 

For a while I had sporadically slow booting times, usually 
lasting about 5 minutes, while the usual bootint time is 
somwhere round 90 sec mark.  I ran a ubuntu supplied RAM check 
over several hours, which showed all ok.  What I found curious 
that after the event of slow booting, the log off was not 
"normal" - the PC just ignored GUI signals to close.  However, 
from a console sudo init 0 closed the computer without any 
dramas.  All in all more of a nuissance than a worry.

This morning I had the slow closing event and took care to look 
at the hand watch and recorded that I decided that the event 
started before 11:22 and ended about 11:25.  So I copied a chunk 
of "message" that covers that time.  I list the "message" 
extract after this text. I do not know what it means and would 
appreciate greatly any explanation or advice:

=====================
From > less messages:
=====================
Jan  5 11:19:53 supremo kernel: [   26.079257] sky2 
0000:02:00.0: eth0: Link is up at 100 Mbps, full duplex, flow 
control rx
Jan  5 11:19:53 supremo kernel: [   26.079741] 
ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
Jan  5 11:20:10 supremo kernel: [   43.453740] 
kwin_opengl_tes[1665]: segfault at 4 ip b773d5a0 sp bfe8ed90 
error 4 in libGL.so.1.2[b76d0000+b4000]
Jan  5 11:29:08 supremo kernel: [  582.273077] usb 1-3.3: new 
full speed USB device using ehci_hcd and address 3
Jan  5 11:29:08 supremo kernel: [  582.696452] usb 1-3.3: new 
full speed USB device using ehci_hcd and address 4
Jan  5 11:29:08 supremo kernel: [  583.120603] usb 1-3.3: new 
full speed USB device using ehci_hcd and address 5
Jan  5 11:29:09 supremo kernel: [  583.792693] usb 1-3.3: new 
full speed USB device using ehci_hcd and address 7

In particular, is the segfault in the RAM?  There is a gap of 
time between 
5 11.20.10
and
5 11.29.08
which suggests that this is the problem time. 

Al.

-- 
Algis
http://akabaila.pcug.org.au