Questions tagged [dmesg]
The dmesg tag has no usage guidance.
62
questions
63
votes
7
answers
114k
views
How to convert 'dmesg' time format to 'real' time format
I have (for example) this log entry in dmesg output:
[600711.395348] do_trap: 6 callbacks suppressed
Is there a possibility to convert this 'dmesg' time to 'real' time to know, when this event ...
1
vote
1
answer
2k
views
APIC error on CPU1: 60(60) in dmesg what does it mean?
APIC error on CPU1: 60(60) in my dmesg log. What does it mean? Should I be worried! Is this some hardware issue?
7
votes
5
answers
43k
views
Linux - martian source in /var/log/messages
I keep getting these messages in /var/log/messages :
Mar 8 23:17:25 saas1 kernel: martian source 169.254.1.1 from 169.254.95.118, on dev usb0
Mar 8 23:17:25 saas1 kernel: ll header: ff:ff:ff:ff:ff:...
1
vote
2
answers
3k
views
Does this dmesg output indicate a failed network card on Red Hat Enterprise?
Having an issue with a network card on a server today. If I restart the service via "service network restart" the card never comes back, the command prompt just hangs. I suspect it's a bad network ...
1
vote
1
answer
2k
views
why dmesg | grep Memory gives two different physical memory amounts?
I am monitoring physical memory in a server I administer, and my hardware provider told me they had increased physical memory size to 4Gb...
However, using several tools (free -m; top; dmesg | grep ...
2
votes
2
answers
949
views
Dmesg and cpuinfo MHz differencies
I can see different values of CPU MHz here:
cat /proc/cpuinfo
model name : Intel(R) Xeon(R) CPU
E3110 @ 3.00GHz stepping : 6
cpu MHz : 2000.000
Model say 3GHz and cpu MHz ...
52
votes
7
answers
80k
views
How to add message that will be read with dmesg?
I am trying to write some custom messages in my dmesg output. I tried:
logger "Hello"
but this does not work. It exits without error, but no "Hello" appears int the output of:
dmesg
I am using a ...
3
votes
4
answers
3k
views
Is segfault signal always sent to application
My application usually crashes and prints stack to log if received segfault signal.
But in some environment the 'dmesg' shows segfault messages related to my application, but application uptime is ...
4
votes
2
answers
4k
views
dmesg SYN flood on 80 sysctl -p
I am getting a synflood on my server port 80 and i cannot stop it.
first i got tables full then i disabled iptables to find out that its a synflood
netstat -n | grep :80 |wc -l
#returns 1300 - 2000
...
4
votes
4
answers
6k
views
Explain the output of dmesg
I am running a Debian system, and find the output of the dmesg command very helpful.
Can somebody explain to me what information is output by the dmesg command? Is it a 1:1 correlation to the kern.* ...
2
votes
6
answers
12k
views
Monitoring dmesg output
I find that when something goes wrong at a low level on one of my linux servers, I can see messages about it in the kernel ring buffer. These can be viewed from the command line using the dmesg ...
2
votes
3
answers
5k
views
What are these strange entries in dmesg?
Running Ubuntu Linux 9.04, and I see these odd log lines in dmesg:
[ 18.673752] type=1505 audit(1240159967.221:2): operation="profile_load" name="/usr/share/gdm/guest-session/Xsession" name2="default"...