dmesg (for "display message" or "driver message" ) print or control the kernel ring buffer
dmesg (for "display message" or "driver message" ) is a command on most Linux and Unix based operating systems that prints the message buffer of the kernel.
Questions tagged [dmesg]
192 questions
7
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
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3
votes
1 answer
What do "i2c_hid_get_input" errors mean?
I'm using Ubuntu 18.04. When I run dmesg in the Terminal, there are some red results and maybe bad ones. Also, there are a lot of red i2c_hid_get_input errors. They happen every minute, even after the boot has been finished. The format is something…
MAChitgarha
- 374
1
vote
1 answer
Where can I find documentation on the output of dmesg?
Trying to figure out why a USB drive isn't working, I plug it in and run dmesg to get:
[101100.860034] usb 6-2: new full-speed USB device number 18 using uhci_hcd
[101100.980060] usb 6-2: device descriptor read/64, error -71
[101101.204071] usb 6-2:…
Jack M
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1
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3 answers
How to filter dmesg by time
I would like to filter by time. for instance:
dmesg -sec 30
The output would be events that happened for last 30 seconds.
Or with time interval. Any filtering with time.
Rimski
- 113
1
vote
1 answer
What does "Page fault failed for pfn[0] = 0x0" in kern.log means?
I recently started getting the following elements printed in "kern.log" and syslog.
Jan 29 10:28:19 server kernel: [82515.307047] Page fault failed for pfn[0] = 0x0
Jan 29 10:28:19 server kernel: [82515.315021] Page fault failed for pfn[0] = 0x0
Jan…
1
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dmesg giving error of SATA link down
[ 1145.670001] ata6: EH complete
[ 1145.670454] ata6: exception Emask 0x10 SAct 0x0 SErr 0x4040000 action 0xe frozen
[ 1145.670459] ata6: irq_stat 0x00000040, connection status changed
[ 1145.670463] ata6: SError: { CommWake DevExch }
[ 1145.670475]…
Pravesh Tora
- 11
0
votes
1 answer
ERROR on HDD/RAID
Any one can tell me what this mean... (obtained using dmesg -T)
[vie oct 24 20:06:01 2014] ata3.00: irq_stat 0x40000001
[vie oct 24 20:06:01 2014] ata3.00: failed command: WRITE DMA EXT
[vie oct 24 20:06:01 2014] ata3.00: cmd…
0
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0 answers
What is this dmesg error?
1428.732482] mmc0: ADMA error
[ 1428.732485] mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========
[ 1428.732489] mmc0: sdhci: Sys addr: 0x00000020 | Version: 0x00000603
[ 1428.732493] mmc0: sdhci: Blk size: 0x00007200 | Blk cnt: …
tomasz-groch
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