CentOS 5 :: Why Did X Lock Up The System
Sep 11, 2009
I had a system lock up recently, running RHEL4, and had no choice other than to powercycle as I could not log on at the console or remotely.
When booted, the machine ran, I could log on remotely and apache started up, but the system locked up again when I logged on to the console with X.
I suspect that the X configuration and/or the NVIDIA monitor driver was messing things up and I took the opportunity to migrate to CentOS 5.3.
How can I determine what happened? I still have the /var/log files when the system locked up including messages, boot.log, Xorg.0.log, etc.
I _SUSPECT_ that what messed up X and thus the system was the NVIDIA driver that I downloaded to get X to work on the console monitor, a SUN AI24PO. X would not work with this monitor and any of the default drivers that came with my RHEL4 disks.
I really hesitate to use connect this same SUN AI24PO monitor again but still, I only have a suspicion that the monitor/NVIDIA driver were the reason the system locked up.
The graphics card is a GeFORCE FX5200
Were the lockup problems a result of the monitor/NVIDIA driver?
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Mar 21, 2009
For the sake of security, I want the screen to be locked after the system is resumed from suspend or hibernation. Now the only way I can do this is to check the options "Lock screen when screen saver is active." in the screensaver preference. But this method is annoying since I have to type the password to quit the screensaver. Is there other way to do this? Thanks.
By the way, I use CentOS 5.2 x86_64.
Leonard
2009-3-21
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Aug 18, 2010
I've had two centos smtp relays setup since 5.1, and it seems every day there are updates, and about every 3 months new minor releases.Is there a way to "lock" to a minor release version of centos? I use yum update to run updates, is that the correct process?
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Mar 25, 2010
I am running most recent version of Ubuntu (cannot remember exact xx.yy-zz). Anytime I use any bit of the networking devices, within the slightest amount of actual traffic the entire system dies. NumLock key light drops, entire system is unresponsive, only fix is a hard power off via power button (aka 5 sec hold in).
If there is anyway to produce an error log or record the commands as they happen.
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Jan 6, 2010
Normally Ctrl-Alt-L or clicking on "Lock Session" works, but as of the past couple of days when I do these, nothing happens. What could be wrong?
I also tried 'sudo kdesktop_lock' and 'sudo kdesktop_lock --forcelock' to no avail.
CentOS 5.4, KDE, all packages up to date.
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Aug 11, 2009
I've googled for the answer to this but every thread has the same answer "don't log in as root". For once I'd like an actual answer to the question if possible. All of the jobs that I run are all through the root account and I'm constantly using ssh into other workstations and servers to change config files or whatnot. I'd like to be able to lock the screen when I take short breaks or head out for the day while being able to leave jobs running. For example I am currently backing up a server onto another one and would prefer not having to stop the jobs when I leave for the day(there's over 400GB to move).
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Aug 17, 2011
At times, the disk I/O will go through the roof and cause the system to slow to a crawl. X becomes really slow and can go completely unresponsive, dropping all keyboard input, preventing me from restarting X. Sometimes I will switch to a virtual terminal to log in and run iotop to check what is using all the I/O, but it will be so I/O bound that the login times out. Sometimes I do manage to get in and can run iotop and then it is a matter of waiting 10 minutes or so for python to load up. Usually by this time, whatever was causing the slowdown has finished and so I don't even know what the problem is. Other times it never recovers (I once left it over night, since it was at the end of my work day and just went home)
This is my work computer so it is very inconvenient to have to wait for this I/O blockage or lose all my work rebooting. I thought it was due to swapping, so I disabled swap, but that hasn't helped. I'm running the cfq I/O scheduler, but I've tried both deadline and noop.
Also, is there a way to disable the login timeout so I can at least get logged in to the box from the console when this happens?
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Jul 15, 2010
I am running Ubuntu 10.4 and using Virtualbox very intensively to develop under windows. This is the perfect combination: Virtualbox is excellent and gives great speed, functionality and connectability. However, I keep getting a keyboard and mouse 'lock-up' and find that I have to power-down my PC in order to get things working again. The strange thing here is that Ubuntu seems to continue working fine: for example audio keeps playing and the system once successfully finished burning a CD even though keyboard and mouse were frozen.
This happens only very sporadically but is a serious problem because I can't have things freezing when I am in the middle of development or am demoing functionality to a client.At first I thought it was Ubuntu but it only seems to happen when VirtualBox is running so I am wondering whether there is a problem with the keyboard and mouse capture for Virtualbox and that this is causing the problem.I have de-installed and re-installed Virtualbox but this didn't help.So does anyone have a idea how I could either fix this problem or how I could get the system to free the keyboard and mouse when I get a lock-up.
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Apr 18, 2011
I have an intermittent and very irritating problem. I have a desktop PC with Ubuntu Lucid installed that I use primarily for watching films using VLC. Every so often (seemingly at random) around half way through the film the whole thing locks up - the video freezes, the audio skips (like a stuck record) and the system is unresponsive - the only cure is a full restart with the power button. Im at a loss as to how to try and diagnose this issue. Is there a log somewhere that might have the info after I reboot?
Usefull info on the system:
- AMD processor - 64 capable but running 32 as I wanted to avoid issues.
- grpahics is via an NVIDIA Geforce FX5500 (PCI interface NOT AGP)
- Restricted NVIDIA drivers installed and working
- Also useful to note that this problem occured when using an AGP ATI Radeon 9200 (using the standard open source drivers of course). In fact the problem was worse with the ATI - the frequency of lock ups is less with the new set up.
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Aug 15, 2010
I had an aftermarket cpu cooler, and one of the mounts broke, causing poor contact with the cpu and the system hung. I've been running the system through paces after replacing the cooler and everything seems fine. I have two disks, one had muliple distros installed and the first one had one slackware installation. I decided a good test would be to reinstall an OS and since I wasn't booting into the old slackware install I decided to reformat the entire first disk which contained lilo and reinstall a newer version of slack. I had repeated boot failures, I've reinstalled, obtained a new ISO and reburned, I've installed Ubuntu and GRUB..Nothing I do will yield a successful boot off the first disk, although no live cd or install has given any errors and the installs on the second disk boot fine. I'm confused as to what is causing this.
Is it possible that the disk itself is damaged somehow even though checking for bad blocks, reformatting, repartitioning,etc show no errors, and a boot loader works fine from the disk, or is it more likely that something is maybe wrong with the motherboard?
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Sep 2, 2010
I have 2 servers, I set the first one up so that I can remote to it and connect with VNC over ssh by following:[URL]ServerThe 2nd server I did the same, but I cannot connect! When I do, vncviewer prompts for a password and then opens a window of the correct size, but it is all white and then my ssh session is locked! I can't enter any more commands, I have to kill the session.
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Sep 21, 2010
Is it just me, or has 'lock screen' stopped working in a recent update? I updated my install today and after rebooting I can't lock the screen... the screen saver doesn't lock it and if I select 'lock screen' manually from the menu then... nothing happens.
I even created a new user in case there was something weird in my configuration, but logged in as them I can't lock the screen either.
This is obviously a bit of an issue in an office environment as I don't want to have to log out every time I leave my desk.
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Aug 1, 2011
I want to lock the filesystem based on user basics, In effect only specific users should have write access. This need to done apart from normal permission setup.
In Detail:
filesystem: /app
application users: appuser1 & appuser2
Normal users: user1 user1
Required: Only app users need to have write permission over app file system, this should done apart from the normal directory permissions. The all other users can able to view the contents even though other users have write permission based on permissions.
This need to done by over ridding the normal permission setup.
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Nov 20, 2009
When I running fedora the caps lock & shift LEDs blinking continuously and system was hang.
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Jan 8, 2010
I'm running opensuse 11.2 on my Asus 1000H, today I found the new kernel Kernek-Desktop 2.6.31.8 will cause system lock down when I try to connect to any wifi assess point. I updated to 2.6.31.8 from Opensuse-11.2-update days ago and today it's my 1st time to try to connect to wifi with this new kernel.
Downgrade to 2.6.31.5 will solve this problem.
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Jul 8, 2011
I am running an embedded Linux Release 2.4.19-uc0.
I have code in several places that calls
reboot(LINUX_REBOOT_CMD_RESTART)
successfully. I need to put it into a new place in a application running on the system. When I do, it seems to just lock up the system and does not return from the call nor leave me able to Telnet in or Ping or anything. I've tried puttingtrace code in to write info out to a file, but that too is not working (as it never returns from the reboot() call.I don't get any error from reboot(), it just does not return and does not appear to restart the system.
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Apr 5, 2010
I've recently had my file system irrecoverably corrupted after a hard lock-up. This has happened to me before, a couple weeks ago, and both times I've had to reinstall. I don't know what is causing the lock-ups (possibly the binary nvidia driver..), but I would like my file system to be intact or at least recoverable next time it happens.What is the "safest" way to mount things?
I'll be using ext3 with data=journal, but I've read that disk write caching combined with a kernel crash or power loss can still screw things up. Supposedly, mounting with barrier=1 helps some, but doesn't work with LVM? Would it be wise to turn off disk write caching completely? I understand there's a performance penalty, but if it helps keep the file system consistent in case of disaster.
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Nov 22, 2010
I just downloaded OpenOffice 3.2.1 from the openoffice.org weebsite. I followed the instructions precisely and everytime ended up in the same error message - 'error: can't create transaction lock on /var/lib/rpm/.rpm.lock (Permission denied)'. I am using Fedora 13.
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Mar 25, 2010
When i connect windows server 2003 from ubuntu these error displayed .When i installing the tsclient, by executing these following command from a Terminal window:
sudo apt-get install tsclient
When i run these command the following error displayed.
E: Could not get lock /var/lib/dpkg/lock - open (11 Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
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Sep 14, 2010
I have a HP Pavilion dv4 that is 4 months old. Yesterday it suddenly seemed to restart then once I logged in it turned off. When I tried to turn it on some of the lights came on and the caps lock and num lock started flashing. Since then I have not been able to get it to work correctly.It once seemed to turn on but died again after the login window.I tried to use my live cd but the same thing happened. It started loading once, but then shut down again. Every other time it stayed dead minus the lights
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Jun 12, 2011
I recently installed Ubuntu 11.04 on an old Sony Vaio laptop. I was following some of the steps here..[url]
The step "Enable Full DVD Playback(Dual Layer DVD Support)" did not finish correctly doh and now I can't use 'sudo apt-get' for anything or the software center or using the 'Update Manager' does not work.
The update manger says it may be caused by an update not finishing correctly which sounds correct as explained above. The apt-get command gives me back the following....'Could not get lock /var/lib/dpkg/lock resource temporarily unavailable' 'unable to lock administration directory /var/lib/dpkg is another process using it?'
I tried the obvious restart but that hasn't worked.
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Feb 25, 2010
my problem is the terminal:
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/) , are you root?
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Apr 3, 2010
I have pidgin2.5.2. I want to install pidgin2.6.6.How can I do that?E: Could not get lock /var/lib/dpkg/lock - open (11 Resource temporarily unavailable)E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?
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May 2, 2010
There is a very strange problem I've been having. When I enable either Caps Lock or Num Lock the media controls on my keyboard cease to work. I have Googled this one to death but found nothing. This problem existed in Xubuntu 9.10 and now still exists in Xubuntu 10.04. The keyboard I use is a Logitech Elite Keyboard. I would love to be able to use the Caps Lock and Num Lock without the worry that I am disabling the media controls
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May 27, 2010
I have just burned the latest CD using infraRecorder, as per the instructions on this site, however when I boot from this CD, it spends about 5 minutes moving the red balls across my screen, then all of the sudden it just freezes, and my caps and scroll lock lights start to blink. I've had a look in the forums already but there's nothing about this happening on Boot of the live CD.
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Jun 23, 2010
I'm wondering why the num lock doesn't work in Ubuntu anymore? When you press the "num lock" key, you're supposed to be able to input the numbers along with + - * / and decimal point. When I press num lock and try typing numbers, nothing happens.
I've done a google search and this is a well known problem that nobody has fixed. In Windows it's never a problem.
Seems such a shame that the great Ubuntu and Linux are so good for stability and speed, but can't get a simple num lock working.
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Oct 31, 2010
I am having a very annoying problem with my laptop.I am experiencing many freezes.When my laptop freezes, it shows the caps lock and scroll lock lights blinking.At first I thought it was a problem with flash (here is original thread: URL... )In the original thread, I thought the freeze's were being caused by the flashplayer, but it apparently isn't the case.The last time I experienced the freeze, I was playing around with the compiz desktop effects.
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Feb 18, 2009
I've only used Linux for about a year or two now and have worked through suspend esume and WPA wireless issues with CentOS and my T61p. However, I'm stumped on this one. why my T61p freezes randomly (happened once while writing this topic) with the caps lock light blinking. I'm wondering if it has something to do with my nVidia driversettings andor using my wireless card and/or switching between home wwireless and work wwired connection.
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Apr 25, 2009
I'm trying to install CentOS 5.3 on a VMWare virtual machine running VMWareServe 1.0.4 build-56528. I have 8 virtual machines that are running some older kernel (RH FedoraCore 4) without any trouble. My system has an AMD Athlon XP 1800 processor and has 1G RAM. Every time during the installation after choosing skip media (I have already checked that the media is OK) I get a kernel OOPS and the capslock and scroll lock keys start blinking. My first guess was that this could be a ACPI issue, so I have disabled ACPI using the acpi=no boot option. The problem persists with the acpi=no option set. During the boot install process, I have seen some messages like this one
ACPI Exception (processor_core-xxxx): AE_NOT_FOUND, Processor Device is not present [xxxxxxxxx]
I have searched for this issue and found a RedHat Bug 435653 that reports this same issue, but this report is somewhat old, so i think that this issue as already been fixed and reflected to upstream. I have tried also to install using the text mode installation, but the same problem. To further isolate this problem, i have avoided the hardware detection and this was the first time that i have overcome the first screen (test media screen), as i have choosen with the success the language and the keybord layout. After choosing the beyboard layout, the kernel OOPS shows up again. On the screen 4 (debug screen) I don't see any relevant messages.
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Feb 27, 2011
I've faced the problem with server freeze on heavy write.
System
CentOS 5.5 x64_86 with latest updates and kernel (2.6.18-194.32.1). Also tried 2.6.18-194.26.1 and 2.6.37-2 from ELRepo with the same results.
CPU: Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz
Memory: 3 x 2Gb DDR3.
HDDs: 2 x Western Digital WDC WD1002FBYS-02A6B0
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