dmesg (for "display message" or "driver message" ) print or control the kernel ring buffer

learn more… | top users | synonyms

0
votes
0answers
22 views

Long Ubuntu 14.04 boot

The boot time in my Ubuntu is very long, its actually taking more than one minute, when Windows booting in 20 seconds. Reinstalling Ubuntu doesn`t help me. I have Asus K52F notebook: Intel Core i3 ...
0
votes
0answers
16 views

How can I speed up my 103 sec boot time(dmesg output included)?

I was hoping that people might have suggestions as to how I can speed up my boot time. At the moment, as you can see below, it's taking all of 103 seconds. I have noticed a few bottlenecks at around ...
0
votes
0answers
10 views

15.10 xubuntu slow boot gap 21-103 sec

My desktop is starting up quit slow, it hangs for a while. I used dmesg wich showed a big gap in the boot process from 21 to 103 sec http://pastebin.com/7dXhqQ0z [ 21.751243] audit: type=1400 ...
1
vote
1answer
29 views

is it possible to recover bad blocks?

I have a 500Gb Internal HDD and from dmesg's output i got this "wonderful" news: [ 324.434832] end_request: I/O error, dev sde, sector 4715026720 [ 324.434838] Buffer I/O error on device sde1, ...
-1
votes
1answer
27 views

why dmesg output to log file is not working?

I am trying to output the dmesg to a log file so I can look at it through my txt editor, but i keep getting an error msg: dmesg > /Desktop/log.txt gives me this error: bash: /Desktop/dmesg.log: No ...
0
votes
0answers
13 views

Hardware Failure or maybe ata driver issue?

My 14.04 system has an older WDC WD1600 ATA hard drive. I frequently see ata errors but the system seems to run just fine - not sure if it just retries and works or what. This is a link to a very ...
0
votes
0answers
25 views

Xubuntu idles for a minute on boot

My Xubuntu 15.10 boots up very slowly on my SSD laptop. It has been running fine for a year, but it started to hang for about 60-80 seconds doing nothing during boot. I'm running kernel ...
1
vote
1answer
57 views

Slow Boot in Ubuntu 15.10 on Lenovo Y500

I am experiencing extremely slow boot times on my Ubuntu 15.10. It is a clean install over what used to be Windows 8.1 (with uefi). Startup ranges from a minute to a minute and a half, with about ...
1
vote
0answers
54 views

Restore boot parameters to default value

It feels like my system is getting slower and slower. I am using Ubuntu and my machine is an HP ProBook 450 i7 4x2.0GHz, 8GB RAM and an ordinary HDD. Still it takes ~2 minutes to boot, which in my ...
0
votes
0answers
22 views

BAR 0: error updating - when booting up

this is a output from my dmesg http://jpst.it/DSJC There is buch on things going on I was reading it my two things are highlited in red: [ 0.323969] pci 0000:05:01.0: BAR 0: error updating ...
1
vote
0answers
73 views

Ubuntu no longer detects SD cards

My card reader used to work fine but now it doesn't work, Here is my dmesg output: [ 290.581992] rtsx_usb_sdmmc rtsx_usb_sdmmc.0.auto: card claims to support voltages below defined range [ ...
1
vote
0answers
38 views

Error message during booting up Ubuntu 14.04 LTS

I got the following error message on booting up. systemd-udevd[368]: '/usr/sbin/alsactl -E HOME=/var/run/alsa restore 0' [672] terminated by signal 81 (Unknown signal 81) What does it mean and how ...
1
vote
2answers
110 views

Much more verbose /var/log/*

I remember the times when probably literally every log message was being put into /var/log/messages and /var/log/syslog. It was year 2000 if someone's curious. Now it is different. Log files are ...
0
votes
1answer
66 views

dmesg log messages meaning

I need to understand the meaning of the following messages I get when I run dmesg in order to investigate why a certain AP is having problems connecting specifically with my laptop. Here are the ...
2
votes
0answers
103 views

Strange errors in 'dmesg' output related to mounted partition

There are some strange errors showing up in my dmesg output related to mounting sda4 on boot, which is an extended partition containing used logical volumes. The following is an extract of my dmesg ...
0
votes
1answer
75 views

What does wq_busy=1 indicate in a failure to suspend?

After upgrade to 15.10, my laptop no longer suspends. dmesg says […] PM: Syncing filesystems ... done. […] PM: Preparing system for sleep (mem) […] Freezing user space processes ... (elapsed 0.001 ...
3
votes
0answers
2k views

Is it safe to use Ubuntu when this error is presented? (mismatch in ips_enabled (expected 1, found 0))

Is it safe to use Ubuntu when this error is presented in "dmesg"? Everything is working just fine (after I have disabled processor microcode firmware). [ 712.259824] [drm:intel_pipe_config_compare ...
1
vote
0answers
31 views

Need explaination of dmesg(Ubuntu Server)

I just set up an old machine I have as an Ubuntu server. When it was booting a huge dmesg came up, and I am not sure what to make of it. Here is the dmesg file: http://paste.ubuntu.com/12895065/ ...
0
votes
0answers
30 views

Slow Ubuntu 15.04 bootup (suppose realtek problem)

I couldn't find a solution for my problem with Google so I hope someone here can help me. I recently installed Ubuntu 15.04 on my PC beside W8.1 (here's my specs : q6600 (core duo quad - 4 cores @2.4 ...
0
votes
0answers
82 views

How to fix modprobe?

I followed some instructions, like a typical noob, in trying to assign a tty/USB0 to my la crosse technology USB device. Instead, I guess I was installing a modprobe for an "ipaq" (I thought it was a ...
1
vote
1answer
121 views

Error using usb flashdrive - what usb error codes mean?

I have somewhat arbitrary errors when using a pendrive, as reported by dmesg: [ 306.904222] usb 2-3: new high-speed USB device number 7 using ehci-pci [ 321.080172] usb 2-3: string descriptor 0 ...
0
votes
1answer
101 views

How to detect & configure a upnp USB to serial adaptor for RXTX development in Java

I ordered a TRENDnet TU-S9 and and plugged it into my system. I heard this is plug and play and that it works on Ubuntu. I'm wondering how to determine which port identifier this USB to serial adapter ...
2
votes
0answers
199 views

PCIe error in dmesg log

I checked the dmesg logs today, and I found this: [108957.958768] pcieport 0000:00:03.0: AER: Multiple Corrected error received: id=0018 [108957.958797] pcieport 0000:00:03.0: PCIe Bus Error: ...
1
vote
0answers
683 views

What to do with `usb 3-1: Device not responding to set address`?

I found it in dmesg of my Ubuntu 14.4.02 notebook. I wonder if should take actions. ~ > grep "usb 3" dmesg [ 2.475970] usb 3-1: new low-speed USB device number 2 using xhci_hcd [ 2.476450] ...
0
votes
0answers
33 views

How to explain these edges in dmesg. What line record slow process?

Can you explain what causes these edges? Was 5.6 to 15.9 delay caused by usb 1-1.4: SerialNumber: 0x0001 or IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [ 5.601659] usb 1-1.4: Product: ...
2
votes
1answer
123 views

How do I use dmesg to diagnose slow boot speed?

I've installed Ubuntu 15.04 on a new Lenovo Thinkpad S440. With 8 gig of RAM, an i7 and an SSD I expected Ubuntu to boot in a few seconds, instead it seems to be taking almost a minute. I've read a ...
3
votes
0answers
608 views

Ubuntu taking long to shutdown [duplicate]

I use Ubuntu 15.04, I have a SSD drive also. Very recently onwards the ubuntu is taking long to shut down nearly 1:30 minutes. I checked the shutdown log messages and I get the follow message. A ...
0
votes
1answer
3k views

What does perf interupt mean?

I am working on my computer, trying to write some device code. I checked into dmesg to get some info, and saw this: perf interrupt took too long (2507 > 2500), lowering ...
0
votes
2answers
307 views

dmesg full of problems after startup

This morning, my Ubuntu 14.04 installation booted to terminal rather than Gnome shell. startx got me in, but without sound (hardware not shown), and on a reboot instead tried sudo start gdm which got ...
1
vote
1answer
785 views

Error message on booting up Ubuntu 14.04.2 [duplicate]

After upgrading from kernel linux-image-3.13.0-49-generic to linux- image-3.13.0-51-generic, I am getting this error message in dmesg on startup: [ 6.352555] mei_me 0000:00:16.0: irq 47 for MSI/MSI-X ...
-2
votes
1answer
306 views

Help me. my boot time is more than 20s

i have a hp pavilion laptop with 2gb ram, intel i3 and 500gb hdd boot time is taking too long(>20s). tried preload, e4rat, e4defrag etc but still no improvement below is my dmesg output ...
2
votes
0answers
205 views

Problem about detecting and mounting devices

The device I want to mount is Nokia 130. lsusb or lsblk cannot find it, but dmesg will, some part of the output is following: [30415.272150] usb 3-2: new full-speed USB device number 4 using xhci_hcd ...
0
votes
0answers
334 views

dmesg error log shows interesting warnings

Im having some weird issues with my mouse where i drag the mouse across the screen and it sticks for half a second then keeps going. I used dmesg and i found some warnings and stuff was wondering if ...
0
votes
0answers
85 views

ubuntu 14.04 take a lot of time to start

Ubuntu 14.04 takes a lot of time to boot. This is dmesg log: http://paste.ubuntu.com/10368370/ What's the problem with that?
1
vote
1answer
90 views

On startup, where does the output to dmesg get logged?

On startup, where does the output to dmesg get logged? Doesn't say on the man page: http://manpages.ubuntu.com/manpages/trusty/man1/dmesg.1.html
1
vote
1answer
822 views

Cannot mount or recognize usb flash drive ubuntu 14.04

I am having trouble mounting my 16GB usb3.0 flash drive both on windows 7 and ubuntu 14.04. Device doesn't show on fdisk or when I run lsusb. This is what I get when I run dmesg after pluging it ...
0
votes
1answer
183 views

radeon dpm: why my power state 0 has high values which are not aligned with dmesg?

# cat /sys/kernel/debug/dri/64/radeon_pm_info uvd vclk: 0 dclk: 0 power level 0 sclk: 37500 mclk: 150000 vddc: 950 vddci: 875 pcie gen: 3 # cat /sys/class/drm/card0/device/power_dpm_state ...
0
votes
1answer
34 views

Why am I getting “trusty” in a path while running ubuntu 12.04?

I'm running ubuntu 12.04 and on a different partition there is a ubuntu 14.04 distribution. When running dmesg one entry is the following: [ 3161.519138] WARNING: CPU: 1 PID: 4782 at ...
2
votes
1answer
374 views

What is taking up 320 seconds on my bootup?

Hi I've run a dmesg after booting with a kernel with loglevel=7. [ 19.439254] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff88080e62f248 [ 19.439255] xhci_hcd ...
1
vote
1answer
431 views

My USB Keyboard isn't working

I have just installed Ubuntu and now my USB keyboard and mouse are not working. I plugged in a PS/2 keyboard so i can now execute commands. I get a lot of strange messages in dmesg: ...
0
votes
1answer
120 views

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 ...
2
votes
2answers
945 views

Chromium dmesg Errors Ubuntu 14.10

How do i fix the issue Chromium dmesg Errors Ubuntu 14.10 [ 443.235756] chromium-browse[3860]: segfault at 1f8 ip 00007f89021c063f sp 00007fffedad9d80 error 4 in ...
0
votes
1answer
312 views

Long, slow boot time for Ubuntu

I'm running Ubuntu 14.04, boot takes a long time. Attached is bootchart and dmesg log http://postimg.org/image/6nepau6fh/ dmesg text went over the character limit so I'm pasting a few time leaps: ...
2
votes
0answers
1k views

14.04 BIOS, ACPI Errors in dmesg

I recently upgrade from 12.04 x64 to 14.04.1 x64 Dell Latitude Laptop I am seeing messages in dmesg that are causing me concern. The 2 excerpts below are the ones I am most concerned with: [ ...
2
votes
2answers
19k views

cp fails to copy with errors “cp: error reading 'file': Input/output error” and "cp: failed to extend 'file': Input/output error

I'm a user of Oracle Virtualbox on Ubuntu. And I used to copy vdi files as a kind of backup. Previously I did this (copying vdi file and then copying it back) many times without any problem. But ...
0
votes
1answer
127 views

How to discover what file in the dev/ directory is related to the SD card reader of my laptop?

how can I discover what file inside dev/ directory is related to my SD card reader of my laptop? I thought that I could execute the following operations: 1) Remove the SD card from the reader 2) ...
2
votes
1answer
5k views

Slow boot Ubuntu 14.04

A few months ago I changed on my Lenovo Q180 HTPC from Windows to Ubuntu (only Ubuntu installation, without dual boot). Now, after upgrading to Ubuntu 14.04 I am noticing a slowdown on boot. ...
32
votes
4answers
32k views

What is nss-myhostname? And why is it not installable?

dmesg shows the line systemd-hostnamed[3964]: Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname! But sudo ...
5
votes
1answer
2k views

Booting Paravirtualized Kernel On Bare Hardware

I been reading dmesg and i found the line " Booting paravirtualized kernel on bare hardware " but I am not using Ubuntu in visualization I am using it on my laptop DELL N5110 the only OS I have on ...
3
votes
2answers
2k views

AMD Turbo Core not working - Change CPU driver?

I Got an AMD FX(tm)-8350 Eight-Core Processor with 4GHz frequency and up to 4,2 GHz Turbo Core speed, but I cant get the Turbo Core to work. dmesg | grep powernow should tell me something like: [ ...