General :: Troubleshoot Disk With Dmesg?
Mar 28, 2011How can I troubleshoot disk with 'dmesg' cmd ? How to distinquish :
- physical disk error
- file system corruption
What is I/O Error ?
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General :: What DMESG Command In Unix Do
Dec 10, 2010What exactly is the use of dmesg?
View 3 Replies View RelatedGeneral :: Debug The DMESG Mesaage Or Any Link For The Same?
Jan 28, 2011was trying to understand the messages the DMESG gives .Does any one knows how to debug the DMESG mesaage or any link for the same ?
View 6 Replies View RelatedGeneral :: Console Display Dmesg Messages?
Feb 15, 2011I've been getting messages, that should be in the dmesg log, on the console.This has been happening for a while, but I finally got tired of them.My system is Fedora release 14, Kernel 2.6.35.11-83 on an x86_64.When I reboot I get the following displayed with the login prompt.[ 52.492937] readahead-collector: starting delayed service auditd[ 52.795508] readahead-collector: sorting[ 53.033970] readahead-collector: finished
View 2 Replies View RelatedGeneral :: Save Dmesg After Crash Or Reboot
Dec 17, 2010I have a gentoo distribution and need to store the information of dmesg collected until a system crash. At present, after a reboot or a crash the information in dmesg are lost and are not available at the next reboot. How can I save all the information in dmesg until a crash and read them after the succeed reboot?I also checked for dmesg.x files in /var/log or similar files but with no success.
View 4 Replies View RelatedGeneral :: Best Way To Troubleshoot Server?
May 21, 2010Now that the server is set up, whats the best way to troubleshoot this server if problems should arise?
View 2 Replies View RelatedGeneral :: Email Sent But Not Received / Troubleshoot It?
Dec 18, 2010I have the problem where the email was sent but not received by users.. The message as below code...troubleshoot
View 2 Replies View RelatedGeneral :: Hear Beep After Hour Of Usage - Shows Up In Dmesg
Jun 24, 2011I recently assembled a new computer so that all hardware is pretty new. Since then I've been experiencing some problem with IRQs when running Debian 6.0. On random occasions, usually after an hour or so of running I hear a beep and this shows up in dmesg:
[code]....
General :: Ubuntu Only Halfway Boots / Troubleshoot And Fix This?
Jul 14, 2010I installed the ubuntu 9.10 cd and for some reason as of last night it only boots halfway. it shows grub, shows loading keymap nd apparmor profiles, then before it shows mpd and apache load it erases everything and stops at a dark grey screen. all before i get a shell of any type. if i leave it alonethe screen still darkens like its going to sleep. is there any way to troubleshoot and fix this?
View 2 Replies View RelatedGeneral :: CentOS 5.5 VPS Web Server Has 'fallen Over' - How To Troubleshoot
Jan 26, 2011I have a VPS that I'm using as a web/mail/DNS server (all-round server) and is repeatedly falling over every 12 hours or so. It seems to be since I used a Wordpress plugin on one of my sites to send out an email newsletter - I had problems with the plugin itself, anyway.
I think it might be causing a memory issue, as I've run 'free' and 'top', which sometimes causes a "fork:Cannot allocate memory" message to appear. Other times it displays statistics and suggests that there's plenty of memory available. Are there logs that I should look at and if so, what should I be looking for? Also, how can I stop this rogue plugin from doing anymore damage, seeing as it still appears to be running?
General :: Make Dmesg Post Output To Tty12 In Real Time
Apr 3, 2011Terminal with real time dmesg output I want to use tty12 for system messages. Is there a way to mirror all kernel messages to there?
View 2 Replies View RelatedGeneral :: DMESG Does Not Display The Kernel Driver Function PRINTK Message
Apr 7, 2010Kernel driver function was called via ioctl and returned success, but when I checked the kernel display buffer with dmesg the printk message was not there. Then when you do lsmod, the driver you were calling showed "used by zero". So it seems like the kernel driver was not accessed. In the kernel driver, I had many printk statements, but nothing printed in the buffer. if the driver get accessed and what could cause this?
View 1 Replies View RelatedGeneral :: Recover A SDHC Card - After Getting A Buffer I/o Error Mesg From Dmesg(1)?
May 24, 2011After reading a SDHC (camera) card with my computer in a non-HC compatible card reader, i guess i destroyed the partition table.
After getting a SDHC-compatible reader i found it seems there is no part. table on the card and no fdisk(1), badblocks(1) can read that card.
Seems they will wait forever to get a part table.
dmesg says:
How to recover the card?
General :: Shell Script Fails To Exit / Troubleshoot This?
Feb 9, 2010This is a very simple problem, but I'm scratching my head with others..
In composing a simple shell script in class, we can't seem to get the script to execute fully. script was formatted as follows.
#!/bin/bash
echo "good bye for now"
exit
did, Chmod 755 to make executable
type file name "bye"
runs but wont exit.....
it just echos the type"good bye for now
The instructor says it works for him at home....
But it wont work in class...
Is there a reason it wont "exit" the shell as commanded ?
General :: Troubleshoot Failure Of Ldap Server Start On OpenSUSE 11.2?
Feb 27, 2010How do I go about to troubleshoot the failure of ldap server start on openSUSE 11.2? I added a custom configuration (through GUI) and now the server does not whant to start with that configuration.
View 1 Replies View RelatedGeneral :: New Install Of Debian Failed To Load Grub Troubleshoot Options
Mar 21, 2010I tried to install debian on my system using a small image at first that would download all the necessary components during the install. It loaded everything except Grub, and wont boot. I need to rescue this as the downloading of all the components took ages and I don't want to do that again.
View 1 Replies View RelatedFedora :: Exactly How Does Dmesg Work?
Jul 21, 2010I am new here and have only been using Linux for about 3 months so please help by explaining things clearly and don't assume I should know. However, for reasons too detailed to mention here I want to know how dmesg works. What I understand is that it provides log details of the startup, hardware etc until logger takes over. What I want to know is this: Do you still get new log messages in dmesg after boot and after the logger has taken over or is it simply a snapshot of what happens at boot time If you shutdown you machine or more importantly something happens to cause it to crash, does it or is it possible to make it record dmesg logs or is it purly a function of boot up
View 6 Replies View RelatedFedora :: F15: /var/log/dmesg Not Being Updated?
Jun 13, 2011I run F15 on my desktop PC and /var/log/dmesg is not being updated. I used preupgrade to upgrade from F14 to F15 on June 3. I boot F15 at least once per day. /var/log/dmesg has not been updated since June 3. /var/log/dmesg was being updated correctly when I ran F14. On f15, if I issue "dmesg" from the command line, I get the expected result. Is this a bug?
View 12 Replies View RelatedRed Hat / Fedora :: Usb Error In Dmesg
Apr 20, 2011When I connect to the internal usb port, i find the following error msg in dmesg :
usb 3-2: device descriptor read/all, error -71
Is this benign, can i ignore?
The message doesnot appear when I connect to the external ports.
googling pointed me to this [URL]
AT the moment the stick is being detected and all works. But still confused as to whether I have a serious problem that may lead to the usb stick going missing or hanging at some point or is this error msg just a spurious one that I can safely ignore?
Red Hat :: Script To Send The O/p Of Dmesg And Df -h?
Mar 25, 2011I need a script to run in linux..it should mail the o/p of df -h & tail -20 dmesg every hour.
View 3 Replies View RelatedSoftware :: Where Is Dmesg Output Stored
Sep 9, 2010I have enabled usb storage debug prints for the debugging of my driver in kernel 2.6.24.4 of Fedora 8. When I type dmesg and press enter I see many prints on the screen. There are however lot many prints and I want all those prints from the beginning. However it seems that the older prints are overwritten with newer prints. SO if just redirect the dmesg output to some file, I get only newest prints but older are lost.
Surprisingly /var/log/messages doesn't contain those prints! Also I see there is a file named /var/log/dmesg , but that files never gets updated with the prints I see on the screen. So, my question is can I get all those dmesg prints right from the beginning in a file somewhere?
Red Hat :: Load Average And Errors On Dmesg
Jan 18, 2011I have two servers. One in production (lets call it the OLD ONE) and the other (lets call it the NEW ONE) in tests to replace the OLD ONE.This is the basic hardware of each one: (I can post more detailed info if you need, but beside the erros on dmesg, look at the the L2 cache of the NEW ONE )
Old one:
2 quad core processors that linux recognize as 8 x Intel(R) Xeon(R) CPU E5440 @ 2.83GHz - 32Kb L1 - 6Mb L2
48Gb RAM
New one:
8 quad core processor that linux recognize as 32 x AMD Opteron(tm) Processor 6136 @ 2.400Mhz (- 64Kb L1 - 512Kb L2
128Gb RAM
The scenario:We run a dataflex system on the old one, with average of 3000 users, with tops at 3300 users and sometimes less then 2000. In the old one, we have a load average from 2 to 6 with the 3000 users, depending on the type of application (sometimes we run reports to txt files that take more then 6 hours to complete and the load average can raise to 12). 85% of this conections are from remote links.
Dataflex is a language that derives from C that have their own sgbd (if we can call it that way), and have a limit of 2gb per table. This size we almost have on 5 tables and we use a dataflex feature to compress the data.
The problem:We are migrating (or trying to) the tables to oracle, so we bought new machines for the DB and the new one to replace the old one, becouse we think that could not handle the job with 2 oracles (load balance).In some tests we could see (or suposed) that the oracle database was not so fast with more then 1000 users (opening same table and doing the same task) and we decided to test the new one with the system that is in production right now, with dataflex tables, to ensure that the problem could be oracle.We change the HDs and IP. Started the system on the new one, and started to monitorate as the real users start their jobs. At 800 users the Load Average raised to 26 and with 1300 users we had more then 115 on Load Average. More users login in and the TOP become slow, pointing 400 of LA. From here we started to get some "Lock time out" erros and we had to change to the old one again, to prevent corruption on the tables. I'm analizing all report tools I know about performance and hardware and I cant see nothing. I saw some errors on dmesg, but I can say that is related to that problem.
Slackware :: Deleted 'dmesg' By Mistake?
May 30, 2011had upgraded from slackware 13 to 13.1 and finally 13.37.After this I noticed that 'dmesg' could only be executed as root. So inorder for a user to execute 'dmesg' I executed 'ln -s /bin/dmesg /usr/bin/dmesg'.What happened next is the symlink was created but the dmesg executable was deleted.I do not want to reinstall the OS (very time consuming on a P3 with 512MB RAM) so I want to know which package provides dmesg so that I can reinstall it.The dmesg man page indicated that klogd will provide the package but then when I reinstalled it it was a no go.
View 7 Replies View RelatedUbuntu :: Bootup-speed: How Does Dmesg Work?
Jan 26, 2010REASON: I want to find out how to improve my boot-up and hibernate-awake time for ubuntu (it is 300% slower as hibernate on windows xp on the same machine)
QUESTION: well my question is concerning the tool dmesg. As I understood from reading the quite brief >>man dmesg this tool will show the messages the kernel put out during the boot-up. true? A typical line on my dmesg output I receive would look like this:
Code:
[...]
[ 39.632219] i915 0000:00:02.0: LVDS-1: EDID invalid.
[ 46.964733] wlan0: authenticate with AP 00:23:08:20:58:6f
[ 46.965988] wlan0: authenticated
subquestion:
a) the number in the beginning (is it the time between the two kernel messages?) in the example it wold be about 7 seconds
b) if it is the time in seconds: does it mean the kernel was abusing 7 dseconds for the output of the line? how can I track what causes the delays?
PS: maybe I should post this in a different ubuntuforums subgroup (if so which?) PSS: is there any good webpage (I have not found any yet) on this topic?
Ubuntu :: Mouse Freezes, Got Dmesg Stacktrace?
May 5, 2010I have been having some problems with a mouse on my system (amd64 variant).The problem has exhibited both with Karmic and Lucid, even after a clean install of Lucid. have a logictech wireless keyboard and mouse combo. After some time, the mouse just randomlyeezes, although the keyboard is still responsive.I plugged in a second USB (standalone) mouse.It initially worked, but after some time, it also freezes. I attempted to unplug the frozensecond mouse and place into another USB port. When I did, the red light on the bottom of the mouse failed to light up. I then attempted to plug in a third mouse, and it failed to show the light as well.When ssh'ing from another box, I get the following from dmesg:
Code:
[79275.300031] usb 4-1: new low speed USB device using ohci_hcd and address 2
[79275.524106] usb 4-1: configuration #1 chosen from 1 choice
[code]...
Ubuntu Servers :: DMESG (command) Log Not Exist On HDD
Jul 19, 2010I would like to find where logs form dmesg(command) are stored on my hdd drive. I'm testing broken hdd with badsectors, and I've got some i/o errors, that I can read (just the most recent) using dmesg command (dmesg buffer). I would like to see whole log, that is interesting for me, but I cannot find where it is stored in /var/log
dmesg command(buffer) (last few lines)
Code:
[245129.080558] end_request: I/O error, dev sdb, sector 218246624
[245129.080562] Buffer I/O error on device sdb, logical block 27280828
[245132.037921] sd 2:0:0:0: [sdb] Unhandled sense code
[245132.037925] sd 2:0:0:0: [sdb] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[245132.037928] sd 2:0:0:0: [sdb] Sense Key : Medium Error [current]
[245132.037932] sd 2:0:0:0: [sdb] Add. Sense: Unrecovered read error
[245132.037936] end_request: I/O error, dev sdb, sector 218246624
[245132.037940] Buffer I/O error on device sdb, logical block 27280828 .....
Red Hat / Fedora :: See Dmesg And /ver/log/messages Of Multiple Servers?
Oct 18, 2010I have around 10 Servers.How to see Dmesg and /ver/log/messages of multiple servers from a centralized location
View 5 Replies View RelatedSlackware :: Insert Music CDs Floods Dmesg
Oct 11, 2010I had a terminal open waiting to catch these messages that spam dmesg. Simply inserting a music CD into /dev/sr0 or /dev/sr1 gives me this:
[Code]...
Fedora :: Strange Message In Dmesg Output / What That Means?
Jul 8, 2010When I run dmesg I get
Code:
[drm:drm_mode_rmfb] *ERROR* tried to remove a fb that we didn't own
Does anyone have any idea what that means?
Fedora 12 Gnome 2.28
OpenSUSE Hardware :: Dmesg Returns Empty Output?
Sep 29, 2010When I type dmesg, it returns empty output.any idea why this would happen?anyone has tried fixing this problem?
View 2 Replies View Related
