Questions tagged [dmesg]
257 questions
101
votes
4 answers
How to read dmesg from previous session? (dmesg.0)
dmesg is a command to read the contents from /var/log/dmesg.
The nice thing compared to less /var/log/dmesg is that I can use the -T flag for human readable time output.
Now I would like to look at /var/log/dmesg.0, to see how my computer crashed.…
donquixote
- 1,507
12
votes
1 answer
What is the first column in dmesg?
I'm trying the dmesg command which outputs the message buffer of the kernal. The format returned on my setup is in the format:
...
[ 0.000000] 3 base 100000000 mask F00000000 write-back
...
[ 95.709163] wlo1: associated
[ 95.709218] IPv6:…
Philip Kirkbride
- 10,236
3
votes
1 answer
Dev loop0: unable to read RDB block 8
Every time I boot my laptop I see this warning and from dmesg I get this output:
[ 2.895604] Dev loop0: unable to read RDB block 8
[ 2.895641] loop0: unable to read partition table
[ 2.895936] loop0: partition table beyond EOD,…
Jorge Eduardo
- 133
3
votes
0 answers
What is the appropriate pronunciation of the "dmesg" filename?
How should the file dmesg (as in /var/log/dmesg) be pronounced? I've always pronounced it as "dee message" but received an odd reaction from a Unix admin when I did that.
Mike B
- 8,900
1
vote
1 answer
Find the kernel module printing the error message
Is there a way to find which of the kernel modules printed the message to the kernel log? We see a few new entries in dmesg output and I am trying to figure out from which module it came from. The following are the entries I see.
kern :err : [Wed…
Sreeraj
- 5,062
1
vote
0 answers
How to find out what process wrote a particular log in dmesg?
I have bought an android tv box which has an hdmi capture card inside. From time to time the capture card stops to record. I need to restart the device for it to work again. I am trying to find a way to 'reset' the card with some commands, eg by…
yeahman
- 143
- 2
- 8
0
votes
1 answer
dmesg to check a portable disk
Run dmesg -T to check a portable disk and the results
[Fri Aug 30 21:31:24 2019] usb 2-1: New USB device found, idVendor=1058, idProduct=07a8, bcdDevice=10.42
[Fri Aug 30 21:31:24 2019] usb 2-1: New USB device strings: Mfr=1, Product=2,…
Wizard
- 2,503
0
votes
1 answer
How to get segfault information for my processes without root permissions?
Debian no longer exposes dmesg to users. It contains useful history about crashes. For example:
segfault at [...] error 4 in libHSrts_thr-ghc8.0.2.so[7f00f2b6b000+63000]
How can I get this information for all of my processes without root…
sevo
- 1,237
0
votes
1 answer
dmesg message repeat
I keep getting this message repeated in dmesg:
[215259.269481] [UFW BLOCK] IN=eth0 OUT=
MAC=01:00:5e:00:00:01:00:26:f2:46:24:8e:08:00
SRC=192.168.1.1 DST=224.0.0.1 LEN=36 TOS=0x00 PREC=0x00
TTL=1 ID=1711 DF PROTO=2
[215270.008461] CPU2: Core…
peterretief
- 115
- 4