Ubuntu :: System Hangs Randomly - Possible Hardware Failure?
Apr 28, 2010
I'm at a loss in trying to debug a problem I have with my media centre. Basically I'm getting random system hangs and when I say hang I mean proper hang - processor stops dead. No animation, not network connectivity, no keyboard/mouse response, nothing. As for it being random - it has happened during movie playback, during idle, after being up a short time, or a long time, it doesn't matter, so it can happen any time really. The logs show nothing suspect, except they just stop and there is nothing common between the logs of two failures. It happens on both my 'old' ubuntu 9.04 partition and on my new 10.04 partition.
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Jul 10, 2010
Lately (in the past couple of weeks) my system has been hanging, particularly when I try to watch videos. I'm not sure why this is happening, but when I looked through my system log files I found what's on the attached file. A couple of other programs that I use frequently (xmms2d and epiphany) have similar entries, and I assumed they are related because they are typically running when the slowdowns occur. Also, my /home partition is giving some errors which may or may not be related.
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Feb 15, 2011
32 bit Lucid is hanging at random times for me. it always happens when there's some sort of full-screen overlay, like when waking from screensaver, or when using gksu (dims the screen). The machine will remain unresponsive for 30 seconds to a minute, then becomes usable again, just with the desktop not refreshed. Nothing of interest in the logs when this happens. The last thing upgraded in the machine was the graphics card (now running a GTS 450). 3d apps work just fine, temps are just fine, and I have no reason to believe it's hardware.
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Jul 12, 2011
I have an Ubuntu 11.04 Server set up for my small office whose sole job is to run as a samba file server. The problem is that it randomly hangs. For example, I can connect the clients just fine, however if left idle it tends to take a few moments to work when you try to go back into the shared folder or drive. The client will behave like it is disconnected and is trying to search for the drive only to a few moments later, go right back to normal behavior.
If I ping this server while this is happening my requests will time out for a little while and then just start working. The same thing happens when I try to connect with Putty or through WebMin. One second its unreachable then the next its fine.I have already tried swapping out patch cables (which actually seemed to work for about 2 weeks) and I have patched it to an alternate port on the switch. The only thing I have not done at this time is to change the NIC.All the clients are running Win7 with the exception of two XP machines.Simply put, its like the machine just goes dormant for a while until you ping at it for a while to wake it back up.
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Aug 25, 2011
I'm trying to install Wheezy (amd64) from the daily netinst image with the text-based installer. The PC will lock up randomly at some point in the process (usually after about 5-10 minutes). The video signal cuts out, keyboard lights are unresponsive, and I have to hard-reset the machine.I was previously trying to install Linux Mint Debian Edition and had the same problem. Another user reports that this is due to a bug in the nouveau nVidia driver, but I can't confirm it.URL...
I assume the Debian text installer isn't using nouveau, so it seems unlikely that would be the problem. The random timing does suggest an overheating problem, though, and the fact that the video signal drops out would seem to implicate the video card. I had no lockups at all with the OS that was previously installed (Ubuntu 11.04).
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Sep 18, 2010
I have a very strange problem with Fedora 13 on my home PC. When booting it just hangs at random points in the boot process. When it happend the first time, I thought the PC probably is completed frozen, but then I discovered that hitting the return button got the boot process going on again, but just step by step. That means on every boot I have to keep hitting the return button until gnome starts up, that's very annoying. So for any reason the boot process seems to switch to interactive mode somehow...
I already removed the kernel boot options rhgb and quiet to see, where exactly this happens in the boot process. But as I said, it seems to be completely random. Sometimes it's when "Starting udev", sometimes, when setting up eth card, when starting atd, and so on. It's different every time.
By the way, a similar thing happens when shutting down. It can take up to half an hour until the PC really shuts down. But it's usually going faster if I just keep hitting return after issueing the shutdown command (which actually looks a bit dull). But the PC finally shuts down at some point. That's not the case when booting up. I thought, maybe there's some kind of timeout problem. But even waiting for two hours, the PC does not startup without keeping hammering the return button
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Oct 24, 2010
I love openSUSE (using 11.2). I have it installed on a Dell Dimension 2400 (2.4G Celeron CPU, 2G RAM), but I have a huge problem. It will randomly freeze during operation. I'll be able to move the pointer with the mouse but unable to click anything and I have to hold the power button down to shut it down and restart. The problem seems independent of the program I am using or what I am doing with the machine. I have not been able to recreate the problem. One more detail. The same problem occured when I had Ubuntu 9.10 installed on the same machine
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Jan 19, 2011
I have (had) Debian Testing running on a 250GB IDE hard drive, partitioned normally.
I also have 4x 1TB drives in a raid 5 using mdadm, and 2x 500GB drives in a raid 1 also with mdadm.
I put the two arrays in lvm using:
I then used "lvcreate" to make storage/backup 300GB, and the rest went to storage/media (approx. 2TB usable). I put an xfs filesystem on both and mounted them.
All was working fine until the system drive shorted out and died on me this morning. As far as I can tell, all my other drives and everything else is fine. I do a daily rsnapshot of the filesystem, which of course is residing on storage/backup (stupid, I know). So I have full backups of everything, but I'll have to put a new hard drive in and reinstall Debian before I can restore everything.
I've reinstalled before and simply reassembled mdadm arrays and remounted them before with no problems, but this is the first time I've used lvm, so I'm not sure what I have to do to restore everything. Is it as simple as reinstalling the system then doing a:
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Jun 7, 2010
I have an old PC in my basement that I decided to load Ubuntu onto a few months ago. I ran version 9 for a while and then recently upgraded to10.04.Unfortunately, I've been having issues with intermittent system crashes using both versions. Sometimes the computer will work fine for hours and other times it will crash 20 seconds after startup. I'll be able to provide much more information tonight when I get home but for now I wanted to plant the seed in the forum and see if anyone has any ideas.The computer will be working fine and then all of a sudden the screen will go black and then start blinking, switching between a blank screen and a blank screen with a bunch of tiny white squares/lines. When I restart, things seem okay again.
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Jan 18, 2010
I recently re-installed ubuntu to fix my freezing problem, but with no success. disc has no errors. I cleaned the disc and the cd drive, the cd burner has a problem installing while the dvd drive does fine. The computer is a HP Visualize X-class workstation with dual 1000mhz pentium 3s, 2 gigs ecc ram and a ATI AllinWonder 9700 pro @ 2x agp(wish was higher), on-board sound. So my problems are:
1) It randomly freezes within 24 hours regardless of who is logged in or if effects are on or what the load is. mouse is frozen too, completely unresponsive even ctrl alt f1.
2) My sound is screwy. its supported by alsa but i have to play with the volume to get sound and lots of times there are audio errors, it sounds like its robo-trippin. I have tried the sound guide.
3) Desktop effects only work with the user that logs in first. If I try to activate them when I switch users it searches for drivers then says it cant be enabled. not a priority.
Window xp works okay but the graphics drivers are giving me problems so i decide to do a dual boot.
I think I am going to put in a different video card. maybe its not all there, it got hot once when the fan died, put in a replacement and it worked but i see lines moving down the screen when there are blacks.
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Jan 16, 2010
My Plantronics headset is detected randomly by the system, I've been searching for hours without solution, however i finally got to thinking that there may be a problem with snd-usb-audio code...
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Sep 21, 2010
Running CentOS 5.5 on a Dell PowerEdge 710 with a mirrored RAID. System randomly reboots leading to MySQL table corruption as its not a graceful shutdown. Here is the output of the getinfo shell script [URL]. Some data has been obfuscated such as public ip addresses. Prior to posting this a full hardware diagnostic was run by the Data Centers support team which turned up nothing.
Output of last|grep boot|head
reboot system boot 2.6.18-194.11.1. Tue Sep 21 03:24 (05:51)
reboot system boot 2.6.18-194.11.1. Sun Sep 19 12:10 (1+10:53)
reboot system boot 2.6.18-194.11.1. Sat Sep 18 23:20 (1+23:43)
reboot system boot 2.6.18-194.11.1. Sat Sep 18 18:20 (2+04:42)
[Code].....
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Mar 8, 2010
My Ubuntu Karmic running system experiences random lockups. There is no pattern in when it will happen, it can go for days without one, or happen every couple hours. Only thing I can notice is that it happens most often when I run Firefox, but when it happens, it happens regardless of me having Firefox open on a website with lots of Flash content or not. When the lockup happens, I cannot move the mouse - the led light on my mouse shuts off, I can't move the cursor, the whole UI becomes unrensponsive, there is no blinking lights on the keyboard, REISUB does not work, only hitting the reset button on my case helps. After reboot, there are no indications of errors in any of the logs that I can see.I have ran memtest for 24 hours, and it completed without errors.
Additional information:
1. LSPCI output:
Code:
00:00.0 Host bridge: ALi Corporation M1697 HTT Host Bridge
00:01.0 PCI bridge: ALi Corporation PCI Express Root Port
00:02.0 PCI bridge: ALi Corporation PCI Express Root Port
[code]....
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Jul 3, 2011
Whenever I'm browsing the web on one of my natty machines, I'm subject to periodic reboots that leave nothing in the syslog. Here's the two constants I've discovered thus far.
It only happens when I'm using a browser (plugin?).
It doesn't matter whether I'm in Chromium or Firefox.
It doesn't matter whether I use Unity or Gnome 2.
This happens every 2-3 days from what I can tell.
This problem is not power related because I've tested it with and without an UPS present.
The computer does a full reboot without any shutdown procedure.
The configuration of this computer is as follows:
Intel i3 2100
ECS H67 Dual Nic
Haupaugge Dual ATSC Tuner
MDADM RAID 10
8GB 1333MHz (MemTested)
The browser plugins are as follows:
Flash 10.3r181
VLC Multimedia Plugin (compatible Totem 2.32.0)
Windows Media Player Plug-in 10 (compatible; Totem)
DivX Web Player version 1.4.0.233
QuickTime Plug-in 7.6.6
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Mar 26, 2010
I am running the Nvidia driver. My system freezes randomly. I've had to reboot my system over 5 times today alone. When it freezes, everything is frozen, even the second hand on the analogue clock. One more issue, and I'm not sure if it's related, my stupid screen goes black after 5 minutes of no typing or mouse movement. This never happended when I first installed it. The issue just started within the last 3 weeks. Kpackage Kit is hidden. I was using it to do my automatic updates. Now I just use yum. between the time I first installed Fedora 12 and now, something has happened to my build to cause these issues.
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Jan 13, 2010
Will a Linux operating system lose data during a power failure as does a Windows operating system?
(If yes.) This has not come up before but I'm going to be doing some work I don't want to lose.
Could you either point me to a backup tutorial or give me the quick overview of preserving stuff with Ubuntu?
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Jun 5, 2011
I noticed that sometimes my Linux server will randomly start to lag really badly, to the point where even a http request takes forever. It is an Intel Core2Quad with 8GB of ram running FC9. This is my "Everything" server so it does file, email, DNS, web (for local stuff only), VMs and so on. There are about 5-6 VMs running on it at any given time. I manage it through a VNC session and have some SSH consoles within that session. This way if I reboot my PC I don't lose all my SSH consoles. If I need to SSH to any server I do it from there. I treat it kinda like a terminal server to some extent.
When this slowdown happens, top is not really useful because I also do F@H so that will always be to the top, but it's low priority. The VMs are also always near the top. This does not change whether it's slow or not, so when it's slow, I have nothing to go by on how to troubleshoot. The load does seem to skyrocket though. Right now it's doing the slowdown thing and it's at 8.09. Normally it's at around 3 which imo is good as it it's under 4. I have 4 cores so anything more than 4 means it's queuing. At least that's how I understand it. This is the output of top:
Code:
[root@borg ~]#
[root@borg ~]#
[code]....
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Aug 4, 2010
I have Mythbuntu 10.04 installed on an exclusive HTPC and working great... until tonight. After letting the system update some packages (161 packages if I remember right), I suddenly have an issue where the graphical system won't start. After researching I found three error messages that might be causing that.
1. At the start of splash screen I see "UUID=xxxxxxxCD7 not ready yet or not present" I checked in /etc/fstab and found that this is the swap partition. I don't remember seeing this before so this could be the culprit.
2. I'm not at the computer in question right now but I saw a Plymouth error about "mountall" and then the message "plymouth command failed". Not sure if this could be the main error.
3. after a while (usually ca. 1-2 min) I receive thousands of errors of the kind "out of memory"... "kill process XXXX" (process vary wildly e.g. dbus-daemon, mysql, etc)... "process killed"..."respawning"
After error 3, I'm not able to switch to graphical console (ctrl-alt-F7). If I was in the graphical console at this moment, I simply can't switch to the CLI console. I'm always afraid of updating my system since I've seen lots of things breaking afterwards (usually the proprietary graphic drivers) but this is really strange.
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Jul 24, 2010
I get a complete system failure when my CPU is stressed. It's not the temperature because when it crashes the CPU temp is only ~55 C. When it crashes the video freezes but the sound repeats itself. Example. I start handbraking a movie, then open a tv show in VLC. This is what I hear.
Did you get that tire - then it freezes
get that tire
get that tire
get that tire
get that tire
... etc
That continues until I reboot my computer. This crash is pretty reliable, as every time I load my CPU that happens. If I don't do anything CPU intensive, I don't get the crash. Also, if I only load up one core of my CPU, then everything is fine. However if I run something such as prime95 or handbrake (which both utilize all 4 of my cores) the computer will crash within 30 seconds.
Ubuntu 10.04
Corsair 750 TX PSU
AMD Phenom x4 @ 2.3 GHz
4 GB G.Skill 1066 DDR2 Memory
Nvidia GTS 250 1 GB edition
Biostar AMD 770 AM2+/AM2 Motherboard
Three HDs, two are WD of 1 TB and 120 GB, and a 32 GB SSD.
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Jul 17, 2010
I m newbie in Linux. i am using fedora 13, kernel release: Linux 2.6.33.6-147.fc13.x86_64 and my graphics card is nvidia g-force 8400 GS. nvidia driver version is 195.36.31.
now my problem is when i run any video file in any media player, my system just freezes...and only way to get rid that is system reset !!! and it get freezed randomly, sometimes system works fine without halting!! i update my kmod-nvidia and kernel but the problem has not been solved!!
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Jun 8, 2010
I recently installed Lynx 10.04 amd64. Twice now, my entire file system has become unusable -- each time after a short power outage (2 seconds).
In the first setup, I had two primary partitions: 1) / that was ext4; 2) /home that was ext4.
In the second setup, I changed the /home to ext3.
Both times, after booting up following the power outage, I received a message saying that "serious errors" were found in /home. But, after several reboots, I was able to login and use the system. Then, some time later, I would started getting "Read Only" messages when trying to write to the file system.
fsck gave the following message: "/home terminated with status 4". I received numerous "I/O error" on sda messages.
My question: Is this vulnerability due to using ext4 or is it related more to something else in Lynx 10.04? Further, what can I do (other than buying a power backup device) to avoid my file system becoming unusable after a power outage?
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Mar 23, 2011
I recently had to restore my system via clonezilla due to hdd failure. I frequently back up my /etc/apt folder as well as some other configuration files and settings that I use in my system to bring my restored image up to date with my ever changing preferences, etc.
I noticed the problem when I replaced the etc/apt folder with my backup version. After replacing the folder, I ran 'sudo apt-get update' and imported a list of all my previously installed software. Then I ran 'sudo apt-get upgrade'. I didn't get any errors at all during any part of the update and upgrade process.Then this popped up in my panel, and won't seem to go away.
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Sep 23, 2010
I was just trying to get used to everything and I noticed something in the task bar that said you have updates that failed to install (or something along those lines). So I opted to install them manually with YAST2 and during the installation some of the files were failing to download, I was unsure what to do with these files (their was a ton of them, I had to actually sit at my pc for over an hour because I couldn't let it go through on it's own due to all the failing downloads and installs) and so I just decided to skip them, everything seemed to be going along normally. Then my computer froze, so I restarted and tried to boot into opensuse and it kept freezing, (I even went to my brothers house to play the xbox with him for a while) and no matter how long I waited for it wouldn't boot into opensuse. I tried the failsafe mode and it just kept coming up with an error (I probably should have written the error down, I wasn't really thinking about that at the time) and after about half a dozen tries, decided to reformat everything all over again.
So with these failing downloads in YAST2, what am I supposed to do with them? If I retry they just keep failing, so the only other options are abort and skip, am I supposed to skip them or is that what caused this to happen in the first place?
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Oct 7, 2010
I want the wget command to work on my linux machine.This is the output of the uname command on my machine Linux kalpana
Quote:
I get the error -ksh: wget: command not found.So can anyone tell me how do I install the wget utility on my machine.
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Jun 30, 2011
i have 11.04 in my pc.when im using the vlc media player, after playing 5-10 min, its going to be stopped automatically and system will become very slow . so again i am going to restart the system .after restarting the system my theme going be changed . i couldn't figure out whats the problem . help me to get out of this.
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Sep 1, 2011
Ubuntu has been reporting a System error problem but when it try's send a report to your servers, it fails due to it's failure of identifying the packet id, i honestly have no idea of how to go about fixing this problem or even identifying the packet that's broken, please do help, as now my Apache server's not working properly, and a couple of other programs are getting affected by this, event installing and updating s an issue.
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Jan 31, 2011
I've recently installed Fedora 14 (x86_64) on my Alienware m15x laptop which has a NVIDIA GTX 260m onboard. Now I have followed leigh123linux's guide to installing those drivers on F14. The installation is a success and everything seems to be in working order, until the system randomly logs the user out and/or restarts the session with no warning. The screen goes black and the nvidia logo appears and then its back to the login screen again. This can happen many times with no apparent stop insight. This does not happen with the default F14 drivers that come with the installation, I have tried several re installations of the Fedora OS and several re installations of the NVIDIA driver, i still have the same problems.
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May 13, 2011
I need to know: how do not automatically restart GNU/Linux after a critical system failure(kernel panic). For some reason the pc is rebooted, actually throws the error screen Reboot just moments before, but I can't to read it before you reboot.
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Oct 12, 2010
I'm using a Toshiba satellite U400 and just upgraded from 10.04 LTS to 10.10 and now, every time I try to suspend the PC, it hangs. Before, 10.04 LTS worked perfectly.
I searched ad could only find some talks about 'vt switch' [URL] but couldn't understand if there is a solution to the problem and if yes what is it
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Apr 24, 2011
http://ubuntuforums.org/showthread.php?t=1567415
Tried all methods to no avail in 10.10 x32/64. Is there a real fix and why does this happen?
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