Ubuntu :: Disk Operations Freeze System
Jun 19, 2010
When I do some copying of files, or any background disk activity with file reading (transcoding a movie, uploading a big file to FTP, virus scanning) all computer becomes so slow, that I hardly can move my mouse, not to mention any productive use. I have SATA HDD, and Intel Quad CPU. I took measures to be sure it is not CPU or memory resource problem. Gentoo, Fedora, Windows don't freese that much on file reading. It is not a filesystem problem, or HDD, cuse I tried exactly this partition with other OSes.
Nice has a minor effect, but is is not enough, and I can't always start Nautilus with another nice level when I want to copy a file. What can I do to lower the priority of disk operations globally, and make apps to share disk thoughtput equally, not the one to occupie the disk until it finishes?
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Jan 28, 2010
I have just installed Debian testing on my new desktop and I am not very happy with performance - when I perform a disk intensive operation, e.g. upgrade packages in the system, everything seems to freeze, e.g. changing tabs in Iceweasel takes 3 seconds. I run the Debian on my 3 year old Thinkpad X60 ultra-portable, and I don't have these issues. (every single parameter of the laptop is much worse than the desktop).
I am using the default packaged kernel and scripts.
I run
hdparm -t /dev/sda1
And I got around 96GB/s, which is expected. What else can I try to make it work better?
rzes:/home/ga# hdparm -i /dev/sda
/dev/sda:
Model=WDC WD15EARS-00Z5B1, FwRev=80.00A80, SerialNo=WD-WMAVU1362357
Config={ HardSect NotMFM HdSw>15uSec SpinMotCtl Fixed DTR>5Mbs FmtGapReq }
[Code].....
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May 7, 2010
Like this neighborhood. I just moved here from Suse. Was living a long time over at slackware but I'm here now.
Q: In suse if you click System in the menus in the top left hand corner all the power operations are there, reboot shutdown etc.
How do I do this on ubuntu - I really really don't like the thingy in the right hand corner...
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May 11, 2011
Let me know unix commands to implement set operations on strings.
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Feb 27, 2011
My system decided to crash on me, hard. It was humming along happily for about 2 months and now doesn't boot. If I boot from hard-disk, I get grub. Launching the first kernel choice hangs. I thought maybe the install was corrupt, so I booted from usb install disk. The usb hdd didn't boot; something about an error trying to access /dev/sda . Unplugging the internal disk and plugging in the usb install disk does result in the system booting. Plugging in the internal disk in a running system usb-booted system does not result in the system detecting the disk.
How do I know if the disk is physically broken? This seems unlikely since it does manage to launch grub consistently. Or is this still possible? How can I try to mount whatever is left? The usb install disk doesn't even list the /dev/sd*. Any pointers on how to reformat the drive if it's not being mounted?
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Oct 4, 2010
I have a Toshiba laptop that seems to be freezing on extended operations involving the file system/hard drive. (that's kind of a guess on my part). The system has frozen during the last day or two when I:
- try a large file operation with Nautilus
- try exporting a large video file from Kdenlive
- try formatting the disk for a new install of Maverick (I decided that with the new version almost out, I might try upgrading in case I broke my system)
What I see is the screen freezing and the mouse does not move. As I said, I tried installing the Maverick RC from the Alternate CD (I wanted to do a minimal install). The install hung on the partitioning step and the caps-lock key started blinking (though I don't get this in other cases). I have booted into my Lucid live-cd and a Puppy live-cd to try Gparted, with the same results - the system freezes (but the caps-lock key doesn't blink). Puppy HAS performed better generally, for example I was able to complete my large file operation (backing things up!) but it is freezing on the partitioning step.
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Feb 25, 2009
How can I track IPsec module's operations? Can I find such a log file or entries in Linux?
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Apr 26, 2011
I have a problem with getting my Linux distribution (Debian amd64-bit) to install. Everything works the way it should - from booting a live CD/DVD (any distro) to running the text-based or gui installation right after bootup. Up until the Linux installation gets to the step for detecting my SATA hard disk drive(s), but before (or at the same time as) initiating the partitioning step, it'll freeze/hang my screen and my CD/DVD drives instantaneously - and the only fix is a forced shutdown and/or hard reboot.
I don't know what causes this, but I tried googling online and all that I really found out was that it might be an issue with running 32-bit vs 64-bit installations - but this is not the case; from running Gparted on Knoppix 32-bit or the partitioning step during a Debian 64-bit installation. Also, I read a random post online related to running kernel commands / parameters alongside the installation (e.g. acpi=off or something similar) stating that it might help?
Anyone got any ideas or solutions? I'm a real newbie when it comes to Linux (though, I'm quite knowledgeable when it comes to computers and technology, and Windows) - else I wouldn't be posting in this forum sub-section, hehe. I can't quite get my head around this one - despite trying my best to find a solution online beforehand.
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Oct 3, 2010
I'm running ubuntu 10.04 as a mythtv box and it works mostly fine. But occasionally the system will hang during booting and the last messages I can see are code...
So, I don't know. What is the problem? This system is supposed to run mostly unattended, I can't check all the time whether it booted alright.
So what can I do?
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Apr 22, 2010
Well i just installed ubuntu and its amazing but after playing around a little i installed compiz and when i restarted my laptop it just wont let me log on it keep freezing. i dono what to do
how do i over write it or replace it or fix this problem?
iv looked on the wiki and tried what it says it doesn't work
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May 28, 2010
My partner and I share the computer, so we are normally both logged in.
When we come to turn the computer off, one of us will log out then the other shuts down (to have a clean shutdown), but when either one of us uses 'Logout' the system just freezes, no response, nothing, have to turn the machine off via power button.
We can 'switch user' fine, and everything else appears ok but log out fails, I did try reporting a bug on this, but seems to have got taken over with people with dual screens / SLI cards, taking it over and its not the same thing.
I get the 'impression' its a graphics driver issue, I'm using the 'recommended' Nvidia driver (am at work and can't remember which version sorry).
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Jul 14, 2010
I'm putting this in general, because I'm not sure if many of the specifics are relevant.I have an everex cloudbook which I purchased from eBay with hardy herron on it.I finally got around, today (I've had it for a year), to installing netbook remix 9.10 with a usb key I had also purchased from eBay.Now, during the upgrade (using update manager) from 9.10 to 10.04, the system appears to have frozen.(desktop frozen, no response to keyboard or mouse).Now, I'm not sure if something could still be happening inside there, and if it would be a good idea to let the machine site overnight before rebooting it. Frankly, it happened once already, and I rebooted, and update manager just took up where it left off once I logged in.
I have not determined what's causing these freezes. It's not a new machine, of course (everex, afaik, doesn't even exist now), so maybe netbook-remix is too taxing on the hardware? I installed xfce to get away from the bloated netbook-remix graphical menu garbage, which did seem to allow the system to run faster. Anyway, the real question here is, while the interface appears frozen, could the upgrade still be developing under the surface? (I hear a fan running in there. There is no hdd to spin, but flash memory, so I don't know if the fan is any indication of internal activity). Would you wait to reboot it? (update mgr indicated 4 hrs remaining to upgrade, in the installing upgrades phase, not downloading, appears it froze during "Running post-installation trigger install-info"). Or just reboot it and see what happens (get update mgr to start again?)? The system never froze on me with hardy. It was pretty quick and snappy, in fact.
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Jan 28, 2011
Running Ubuntu 10.4 32bit (only) on my system with ati graphics card. I just ran a software update, and I believe a new kernel was installed. When I rebooted, I saw the "Ubuntu" loading screen, but then the system froze up and the screen went completely blank. Thinking it was a graphics issue, I tried to press escape to get into the grub bootloader. However, when I pressed escape at the proper time, the system just rebooted.
Thinking that grub was broken, I used a live cd to purge grub from my system and re-install it. When I rebooted, I got the same initial problem: I get the "Ubuntu" loading screen, but then the screen goes black and the system appears to be frozen. Again, if I press escape to try the grub bootloader, the system just reboots.
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Mar 26, 2011
Nothing too major here but today I had a few programs open and was doing a bunch of things and suddenly the system froze.
I am on 10.04 LTS -
Are there checks that I can do to see if everything is ok?
I had to turn the power off and re-booted and everything is fine, or rather, seems to be 100% fine - but more out of curiosity Id like to see if there are some checks that I can do.
I think that ubuntu creates a log of activity if I am not mistaken?
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Apr 9, 2010
This is the third 9.10 install to do this on two different laptops, so wondering what's up...
In both cases, the goal was to leave a large chunk of unpartitioned disk after the Ubuntu partitions, for a second OS install or a filesystem Ubuntu cannot create like NTFS.
When I install with manual partitions, the system can't boot and asks for me to insert a system disk and press any key. When I reinstall telling Ubuntu to "use the entire disk" it then works.
First laptop, first try:
Remainder of the 500GB disk is free space.
Fails to boot, "insert system disk".
First laptop, second try without the /boot partition:
Remainder of the 500GB disk is free space.
Fails to boot, "insert system disk".
"use entire disk" works perfectly.
Second laptop, first try:
Same thing, non-system disk or disk error, insert system disk.
Second try "use entire disk" is currently in progress but I expect the same to happen.
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Mar 22, 2010
I am running Ubuntu 9.10 and trying to use OpenOffice 3.1. If I run OpenOffice, after 10 minutes or so, the whole computer freezes. Even if I have shut down OpenOffice it still happens. Only answer is to turn computer off and on again. I read some other people's posts listing the same problem and as a result uninstalled Open Office and then installed it again. I also uninstalled Compiz. Neither of these seem to be the solution. I have just installed Lotus Symphony and there are no problems with freezing and so the issue is definately with OO and Ubuntu.
I then on further advice uninstalled the bundled Ubuntu version of OpenOffice and installed directly from the OpenOffice website. The problem still remains. Next thing I tried was to uncheck autosave feature. The above problems only happen on my desktop. I also have an ASUS EEE Netbook running Ubuntu 9.10 Netbook remix. This is fine - the problem does not seem to affect the netbook. I would really like to continue to use OO - I like it a lot. Unfortunately this freezing issue is making it unusable.
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May 17, 2010
[I'm not sure if this is the right forum. This is the closest I've found]. I've installed Ubuntu 10.04 LTS (dual boot with Windows XP SP3). After Ubuntu starts, it takes about 10 seconds, and the computer halts. No screen/mouse/keyboard activity. If I start Ubuntu under Recovery Mode, with failsafeX, it doesn't happen.
In the Windows all is fine. What did I wrong? [My CPU is: Intel(R) Pentium(R) Dual CPU E2140 @ 1.60GHz, if it matters...]
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May 31, 2010
I've recently installed 10.04 LTS on a desktop PC so I can use it as a Zabbix monitoring machine.
I fresh installed and all seemed to be well but after a few restarts the system suddenly refused to boot anymore. The BIOS splash screen comes up and then a cursor blinks on the screen for a couple of seconds and then... nothing. The keyboard and monitor both go unresponsive and nothing happens.
I can hear the HD spin up and it isn't making any weird noises. Also, booting from the CD works and I can see and work with the HD so I'm not convinced that this is the problem.
In fact, I actually did a fresh reinstallation of 10.4 onto the machine and started from scratch. Again it ran fine for a few hours while I was setting Zabbix up. After a couple of restarts, again the freeze on boot.
I ran a HD scan and everything seems fine. I've also switched the HD over to the second IDE connection in the box just in case...
Does anyone else have this problem? Is it a bug? Any ideas on how to workaround it? (Short of going back to a previous Ubuntu version)
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Nov 29, 2010
I seem to be having a problem on the new Kernel (2.6.35-23) with the system randomly freezing.
I have installed a number of things in recent days leading up to this problem, but when i boot with the old kernel i don't seem to have any issues. From this i am guessing its the new kernel.
The freezing seems (although i am not sure) to be worse when Rhythmbox is running. When it happens everything freezes, the playing song skips, replaying the same one second of music over and over. All the hotkeys stop and the mouse cursor stops responding.
I have seen people talking about system logs to look at system crashes but i don't know how to show those. I also doubt my ability to interpret them.
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Dec 20, 2010
I'm having a problem with my Ubuntu 10.10 system. After installing the OS it worked fine. But after one or two restarts it totally freezes i mean NO Ctrl+Alt+Bckspc , NO Ctrl+Alt+F1 and Ctrl+Alt+Del works for me. I have the same problem with Ubuntu 10.04 , 9.10 also. ( Only Ubuntu version 9.04 Works fine for me ). But i want to make use the latest one. code...
After Ubuntu fails some time it crush the GRUB loader, so that i can't boot windows either. Any buddy tell me why this happen to me?
I've try to install Linux Mint 10 also but it freezes while installing..!!
Now I loaded the openSUSE 11.4 milestone 3. It works fine for now but i can't connect to internet , it asks for "linux-atm-lib" . i don't know how to do that .
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May 9, 2011
I built a new system for 11.04
Intel i5
ASUS P8H67-M LE motherboard
4 gigs of ram
2TB Hard drive
DVD writer
I am getting system freezes, but the mouse pointer still responds (moves arounf).
I suspect that it is the Sandy Bridge video. The freeze is preceded by video corruption.
How do I proceed to get this resolved and report the errors to the development people?
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Jul 29, 2011
I frequently (i.e. after 10-20 minutes of use) get a complete system freeze when using LibreOffice Calc 3.3.3, on Ubuntu 11.04. At the time, I have an *.ods file open, and the freeze happens at various times, for example just after pressing the Page Up button. After the freeze occurs, nothing responds, not even Ctrl+Alt+F1, and I have to force power off my laptop.
how to debug this problem, as there's no error message, no error log (that I know of??)..
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Aug 1, 2010
I had done a new lucid install to a 1 TB RAID 1 array using the alternate CD a few weeks back. I messed up that system trying to some hardware working that lucid doesn't have drivers for yet, so I gave up on it and reinstalled to a single 80 GB disk that I now want to move over to the RAID array.
I moved all of the existing files on the array to a single folder, then copied all of the folders from the 80 GB disk over to the array with permissions and symlinks (minus the contents of /proc and /sys, which I created empty).
These are the commands I used:
Quote:
p -a -d -R -v -t /media/raid_array /b*
cp -a -d -R -v -t /media/raid_array /d*
cp -a -d -R -v -t /media/raid_array /e*
cp -a -d -R -v -t /media/raid_array /h*
[Code]....
I tried to change fstab to use the 689a... for root, but when I try to boot, it's still trying to open /dev/disk/by-uuid/412d...
So then I booted from the single disk again and chrooted into the array, then ran update-initramfs -u. I got 3 "grep: /proc/modules: No such file or directory" errors, and "cat: /proc/cmdline: No such file or directory"- so I created directory /proc/modules, created an empty file /proc/cmdline, and ran the initramfs update again. Then I tried to shut down, which hung (probably because I was doing all of this from a terminal window in Gnome), so I killed the power after a couple of minutes.
It's still trying to use /dev/disk/by-uuid/412d... to boot.
What am I missing? I assume I just have to change the UUID to mount as root, but I don't know how.
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Jul 11, 2010
I updated 9.10 and system crashed during update and is now unbootable. It seems to freeze (or is just taking a really long time) at fsck. Is there any way to make my computer usable again without reinstalling the whole OS?
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Sep 19, 2010
So when i initially boot (both using wubi and a usb stick.) it will start to go and then do the alternative boot option with a 5 second count down. Then if I'm lucky it will get passed that then either a black screen with just a flashing _ on it and it will freeze there. Or it will go to the ubuntu opening with the little dots for initial boot and it freezes there. (the dots don't move more then two and then it really freezes.) My specs are
i5 750
Nvidia Geforce GTS 250
1.5 TB harddrive
ASUS P7P55-M LGA 1156 Intel P55 Micro ATX Intel Motherboard
Windows XP home edition 2006 with SP3.
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Nov 4, 2010
I have an Acer aspire notebook.graded from lucid and now I have a really big problem:every time i disconnect the ac-adapter from the pc, the system freeze completely, became unresponsive to commands and to sysrq. i need to phisically turn off the machine and then back on.
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Nov 9, 2010
I recently installed ubuntu 10.10 and am completely new to linux. Something I recently noticed is that my whole system will freeze 2 times after logging back in, but after that it works fine. I will log in, then it will work fine, but shortly after it will completely freeze. After about a minute, it will unfreeze and everything will work fine. Then after a little longer, the exact same thing will occur. After the second freeze and unfreeze, it never occurs again until I log out and log back in. I do not believe this occurs when first starting the computer.
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Dec 13, 2010
I successfully installed Ubuntu 10.04 Lucid on my relatively new iMac 21.5 10,1, but have been unsuccessful in running the upgrade to 10.10 Maverick Meerkat in the normal mode. It appears that the system freezes and/or does not recognize input from either the wireless mouse (aka magic mouse) or keyboard. However, I am able to boot in the recovery/failsafe mode.
I previously attempted to install from a live CD, etc., but the same thing happens, regardless of the type of install I've tried. Has anyone who has had the same problem found a fix to boot in the normal mode?
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May 1, 2011
I have been using ubuntu for 4 years now on my decent laptop with 2 Gb RAM, dual core centrino, etc etc. Yet, in all those years I have been using this superior OS, I still have to do hard shutdowns because some program runs wild. I have lately 2 scenarios where I have to interfere with the process:
1: amarok crashes and leaves the python script for the gnome shortcut keys running at 100% CPU. Or: thunderbird-bin keeps running after apparently clean close of Thunderbird. That's not really bothering me, I just kill both processes.
The bigger problem is scenario 2: 2: VLC starts eating all my RAM (for no reason), my SWAP starts filling and my computer becomes unusable for 10 minutes. Or: my matlab script is too big and eats up too much RAM -> same. Note: I have nothing against SWAP because at many other times it's very useful
These are stupid and annoying problems where there is an easy solution:
1) automatically kill the stupid process that runs at 100% CPU
2) automatically kill the stupid process that eats up all my RAM
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Jun 3, 2011
Running updated 11.04 on a older Dell Precision 360n. Been having random system freezes for the past month that requires a hard restart (REISUB doesn't work) each time. Sometimes the caps lock and scroll lock LEDs blink, other times not. sometimes it happens during boot, other times during normal usage. There hasn't been anything in any of the logs (except once, which I'll post below). This happened running 10.04 and 10.10 as well. I've run PC-check a few times and all hardware diagnostics have passed. Until today, i've been able to boot and run Trinity Rescue Kit 3.4 to mount the disk and examine the logs (and do backups), but now TRK won't boot and spews kernel panics when loading.
[code]....
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