CentOS 5 Server :: BUG: Unable To Handle Kernel Paging Request At Ffff8140320234b8
Apr 30, 2009
Here's the text from the serial console before I rebooted:
BUG: unable to handle kernel paging request at ffff8140320234b8
IP: [<ffffffff802b0a13>] dentry_iput+0x26/0x9d
PGD 8063 PUD 0
[code]....
My root server is using CentOS release 5.2 (Final), kernel 2.6.26.5-rootserver-20080917a, SMP, 64-bit This Oops happened yesterday and before that it happened on March 14th of this year, and before that on January 31st of this year, so a repeating pattern. On the January 31st Oops, I just rebooted. On the March 14th Oops, I reformatted the two swap partitions as follows: mkswap -c /dev/sda2; mkswap -c /dev/sdb2 On this last Oops, I turned off the swap for 24-hours, then decided to turn it on again after doing the above mkswap again. During the previous uptime, I had dumpcap packet capture running, but this last reboot, I'm not going to run it.
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Apr 8, 2009
I am trying to install CentOS 5.3 on a computer where I successfully installed Windows XP.
Booting from the DVD I got the following error:
[<c0458f3c>] serial8250_init+0x6d/0xe4
[<c041abd4>] init+0x25/0x69
[<c041f46b>] ret_from_fork+0x1eb/0x73c
[<c04597eb>] init+0x181/0x19b
[Code]....
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Apr 16, 2011
Does anyone have any idea what this is? I'm running F14 kernel 11-83, everything else is rock solid but I get this crash randomly, sometimes it runs for days no problem other times it crashes within a few hours.Someone recommended I run memtest86, I did for 24 hours and it showed no problems.
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Nov 10, 2009
[Note: I'm typing this entire thing out. It probably isn't 100% verbatim. And I am using an older version of the kernel because 2.6.30.9.96 was not behaving either.]
Code:
BUG: unable to handle kernel paging request at efd86f5c
*pde = 00000000
[code]....
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Aug 3, 2010
I've been trying to install Opensuse 11.3 from the Kde live cd, but the installation hangs when I'm almost done. Right at the beginning the installation is interrupted right with text that among other things says:
Bug: unable to handle kernel paging request at ffffc90010b8000. After a while though, the installation picks up and continues by itself. I'm then able to complete the necessary steps and I reboot the system so that it can complete the installation.
After reboot there is a new text message that says that the bios does not support EEC memory or something to that effect and then continues with the installation. When it has completed 82% of the autoconfiguration the installation just stops and stays that way.
I've had no problem installing previous releases, from 10.2 up to 11.2, on the same machine.
I've checked md5 sum and also checked the media before proceeding with the installation.
Upon reboot after the first installation step, I also tried the failsafe mode but got the same result.
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Jun 15, 2009
all of the following are made through live usb creator. when i tried with F11 i686 live kde, I got the following error: Bug: unable to handle kernel when i tried with F11 x86_64 live kde then at the time of installation my screen got blurred.
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Nov 17, 2009
I am trying to install F12 on a Dell Latitude E5400 laptop. It got through the whole install process, but when it rebooted i just get a screen that says
"unable to handle kernel null pointer dereference"
and it just hangs there.
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Jun 21, 2009
since upgrading to Fedora 11 I keep getting this error:
Code:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000041
IP: [<ffffffffa01fab94>] sync_request+0x1/0x8de [raid456]
PGD 49435067 PUD 494f6067 PMD 0
Oops: 0002 [#1] SMP
last sysfs file: /sys/devices/virtual/block/md0/md/sync_speed
CPU 0
Modules linked in: ip6table_filter ip6_tables ip6t_REJECT nf_conntrack_ipv6
[Code]...
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Jun 25, 2010
how to redirect all client http request to https request in squid
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Aug 10, 2010
End_request: I/O error, dev sds, sector 420656157
EXT3-fs error (device sda2) : ext3_find_entry : reading directory # 52527153 offset
What is this Above Error which I am getting , on my server
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Aug 11, 2011
i am forwarding HTTP request to a internal server, it is quiet successful but access logs donot show the ip of the external m/c. Rather it shows the ip of the machine on which i have enabled port forwarding.
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May 11, 2009
I am new in linux,I installed apache-tomcat on fedora.I can view all web pages on localhost:8080 but when I try to view them by server's url address from another computer, I don't get respond.Can it be a firewall problem or something else?
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Feb 27, 2009
I use web server apache use php fastcgi (Centos 5.2, apache 2.2.9 , php 5.2.5 and fcgi-2.2.4 ). I receive error : "The server encountered an internal error or misconfiguration and was unable to complete your request. contact the server administrator, no-reply@zz.vn and inform them of the time the error occurred, and anything you might have done that may have caused the error. I view log :
[code]...
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Mar 10, 2010
What's the centos-approved way to handle group environment configuration? Let's say there are users in, oh, 4 different groups. Let's use the usual suspects:
accounting
warehouse
admin
netadmin
and I want to set up environment variables and maybe some pathing that are specific to a given group. So that when 'joeblow', who is a member of group 'warehouse', logs in, the pathing and environment variables (and whatever else) that is needed for users in the 'warehouse' group is set up and configured.
What I was initially looking for was an /etc/groups.d, and in /etc/groups.d is
/etc/groups.d
accounting.sh
warehouse.sh
admin.sh
netadmin.sh
As part of the login process, the group memberships for the login username would be examined, and for each hit the respective /etc/groups.d/ script would be run. I'm not seeing anything like that, so I'm assuming centos uses some other mechanism, but I'm obviously not using the proper keyword mojo. Can someone point me to where this mechanism is described?
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Jan 28, 2011
I am running an old kernel for my XEN VPS CENTOS 5.5 x86_64 - 2.6.18-164.el5xenI did a 'yum update kernel' but when I rebooted still the same. I have downloaded the version 'kernel-2.6.18-194.32.1.el5' I cannot find grub.conf in both etc and boot, yes grub is installed via yum.
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Feb 28, 2010
I built a home server (NAS/WWW/SSH/media server etc) and chose CentOS 5 as the OS (stability, easy of configuration).I was just about to start tuning the power consumption when I realised that the kernel CentOS uses is so "old" that it does not support the latest reduced power consumption enhancements that Linux has achieved in big strides in the recent past (we are probably still talking 6-12+ months ago e.g. tickless kernel)..
So my questions; 1) I know CentOS was maybe not meant for home servers (certainly its not its primary purpose), but if it is, any ideas of what kind of power consumption it takes (I know its relative) and if there are particular power consumptions that are worthwhile?
2) Do you recommend me compiling my own 2.6.21+ kernel from kernel.org or am I just likely to have compatibility issues (I really did not want to do that) or when is CentOS 5.4 supposed to have a newer 2.6.21+ version kernel?
Was it wrong of me in principle to choose CentOS for a home server when I am power conscious? (I don't have a low-power VIA processor either but a P4 so I am really just hoping to make do with software changes).
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Mar 18, 2010
I am trying to build a custom kernel but I couldn't. Here are the steps to reproduce it:
1. Set Up an RPM Build Environment as its is explained in [URL]
2. Then follow the instructions in [URL]
3. When I try to install the kernel source rpm I get the following error:
[matias@Centos ~]$ rpm -i [URL
warning: user mockbuild does not exist - using root
warning: group mockbuild does not exist - using root . . .
warning: user mockbuild does not exist - using root
warning: group mockbuild does not exist - using root
error: unpacking of archive failed on file /home/matias/rpmbuild/SOURCES/linux-2.6.18.tar.bz2;4ba24901: cpio: read
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Oct 24, 2010
I had a Centos 5.5 system working great...and then due to crazy curiosity, installed the kernel update. Did this through the graphical interface, uncheck all update other than kernel. It downloaded, installed fine..After reboot now all I get is GRUB_ and then nothing else! I waited 3-4 minutes and had to shut down system. Have been googling around but thought I will post it here as well..When I boot with Win7 and use Ext2fsd to check, the boot folder is empty. Not sure if this is because ext2fsd does not read boot folder or it got wiped out by the yum upgrade process.
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Oct 26, 2010
I have recently run an update and now we are unable to boot the newer kernel. We get stuck as below;
Memory for crash kernel (0x0 to 0x0) notwithin permissible range
Red Hat nash version 5.1.19.6 starting
Unable to access resume device (/dev/VolGroup00/LogVol06)
[Code]...
The kernel version we were at was 2.6.18-194.el5 and the update move us to 2.6.18-194.17.1.el5. I've done some googleing but I'm unable to work out exactly what I need to do. I'm guessing the new kernal is missing a module?
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Jan 27, 2010
I need to understand southbridge related code in linux source code.
For that I have downloaded Linux source code version:2.6.28 .
I have seen the code but didn't find code specific to southbridge handling.
Is Linux source code contains southbridge specific code?If so where can I find the code?
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Mar 20, 2009
A FC10 server hung and had to be power-cycled. I suspect it hung because of an nfs mount timeout.
Now it does not boot. The error is libc.so.6 not found. Kernel panic. Attempting to kill init.
Booting under rescue:
ls: cannot access libc-2.8.so: Stale NFS file handle
Is there a way to reboot to a clean state? There must be some NFS cache file.
I also tried to cp rescueCD:/lib64/libc-2.8.so to the old lib64 dir, but get the same "Stale NFS file handle" message.
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Mar 7, 2009
I just installed a fresh CentOS 5.2 32bit system. I used "The Perfect Server" server document from Howtoforge and went through those steps and then added Webmin administration console. I then tried to install VMware Workstation 6.5 onto the system. I downloaded the latest VMware bundle, ran it and everything went fine. I then try to run vmware and I get the following messages
C header files matching your running kernel were not found
Before youcan run VMware Workstation, several modules must be compiled and loaded into the running kernel
Kernel Headers 2.6.18-92.1.22.el5.centos.plusPAE
Kernel headers for version 2.6.18-92.1.22.el5.centos.plusPAE were not found. If you installed them in non-default path you can..
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May 19, 2011
djmack-5/19/2011-I have purchased an ASUS K52J (intel i7) laptop. I have installed Centos 5.5 (64 bit) from CDs. The I got all the updates and it's now up to 5.6. I have two problems.
(problem-1) - Using the GUI (System->Administration->Hardware) I can get to a Device Manager screen. It shows a JMC250 PCI Express Gigabit Ethernet Controller. Using the GUI (System->Administration->Network) I can only see the wireless (wlan0) as configured and active. The ethernet card is not seen as ether 0. I've seen there are downloads to solve this problem, however I've been 100% unable to do and or understand them. I don't know how to build the kernel and I don't have any source code. I only have the binaries (I think). Is there a version of the kernel that I can put on CDs that has understanding of the ether card I referenced above?
P.S. I've downloaded a binary fix and it says it needs 20 or so dependencies (I have zero idea how to get those).
P.S. I've downloaded a source fix and I couldn't get it to install (I'm not a linux kernel build knowlegable person). I don't have the source either.
(problem-2):As stated above I need direct (RJ45) access to the laptop. I currently have the wireless card working but I have no idea how to get this to work with httpd, ssh, scp.I can access things via a web browser right on the laptop. I cannot access this laptop via a web browser from any other box. I cannot access this box via ssh or scp.I disabled the firewall and I disabled the SELinux security.I am stumped as to why I cannot see this ASUS laptop via httpd and/or ssh/scp.I can ssh and scp to other linux servers but these servers cannot ssh or scp into this laptop.
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Aug 15, 2011
I got a CentOS server + KDE from a server (which I had no contact until now), he had 2 HD's one for the system and another for files.
I brought the HD system home to try to make it run on a virual machine (VMware) so I can do some testing before you put in practice.
But already converted the VMware HD to the system, it tries to start but it shows some errors and in a message "kernel panic - not syncing: attemped to kill init"
I think the drivers are correct, has edited the file "/ etc / modprobe.conf" edited these entries equal to another I installed CentOS on VMware.
alias scsi_hostadapter mptbase
alias scsi_hostadapter1 mptspi
ata_piix alias scsi_hostadapter2
Look at the picture attached the full error.
Link to large image
Link to large image
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Oct 19, 2009
I'm wondering if there is any application being able to handle compressed SWF files. If I try it with mencoder (mplayer), it tells me:[swf @ 0x91a0a30]Compressed SWF format not supported No way in Fedora Core 11?
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May 21, 2009
I have centos 5.3 workin on mini itx atom 330. i have some problem with the network when i use Samba. when i move big files the network goes down. i wanna to install the new kernel on my centos to try to fix the network problem with the new drivers includes on the new kernel.
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Nov 6, 2010
I have an i5 Thinkpad running Windows 7 64-bit. VT is enabled in the BIOS. I have installed vmware server v 2.0.2 but am unable to install Centos 5.5 x86_64 as a guest OS. The steps that I followed are as follows:1. Created a new VM, specifying RHEL 5 64-bit as the intended guest OS (per vmware documentation - Centos is not available as a selection2. Downloaded all 8 iso files for Centos v5.5 64-bit3. Modified the CD/DVD drive to 'connect at power' and use an iso with the path pointing to the x86_64 iso 1 of 8When I power up the VM, the console window displays 'ISOLINUX 3.11 2005-09-02 Copyright (C) 1994-2005 H. Peter Anvin' and nothing else. The installation splash screen never appears. As a test, I downloaded the first of 7 iso files for the 32-bit version of Centos 5.5 and pointed the CD/DVD drive to that iso. In that case, the installation starts as expected. I would really like to get the 64-bit version installed and running.
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May 30, 2011
i am not able to port 8080 on my CentOS VPS server.I have followed all the instuctions as mentioned on iptables wiki page.Also I am able to telnet my ip address and port number, But can not access from browser.
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Aug 8, 2011
I have two Centos 5 servers one running Asterisk with PHP installed and another sever running as a MySql Database server, at the moment when I try run simple script to see if I can connect to the remote server I get the following error.Quote:Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
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Sep 1, 2011
i've installed nagios just from a while and after i installed centreon, since this when i try to log in the web interface of nagios it shows up this message: Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request. contact the server administrator, webmaster@localhost and inform them of the time the error occurred, and anything you might have done that may have caused the error. More information about this error may be available in the server error log. Apache/2.2.17 (Ubuntu) Server at localhost Port 80
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