Ubuntu :: 10.04 LTS Random Freeze - Hang-up
Jul 20, 2011
My problem is that my server randomly hangs. If I remember right it started after an kernel update (can't really remember if it was a kernel update specific, but I did install new updates before this problem occurred), and then I noticed my server was down one day, after that the problems/random freezes continued. And there are no pattern/interval between the freeze ups.
I think that all this started for about 3 weeks ago, so I've never had this problem with Ubuntu 10.04 before.
At first, I thought the source to my problem was an old IDE which I accidentally left in when installing Ubuntu at the first time, so GRUB was sitting on that one. So I backed up almost all of my data, reinstalled Ubuntu 10.04 (downloaded from the website) but this time without the old IDE drive. Everything seemed to work, had no crashes or freezes. I do have to mention that the same thing happend to the live CD before I removed the old IDE.
But now the fresh install of Ubuntu seems to hang too. And the worst part of this is that I can't really do anything about it to test or look up what may cause the problem, as I have to access it remotely because I'm on vacation right now (I'll have to get my friend over there and restart it).
When the computer hangs it comes inaccessible from the network, can't even see that it is up in my router. But I do know it is running, else it would have been shut off and then started up again and work.
Before I re-installed it, this problem could be reproduced by surfing the web and watching flash videos in either chromium or Firefox.
And I do know it sounds silly to run a server with the desktop edition installed, but if I don't have any other computer accessible, I use my server instead.
My server specs:
CPU: Intel Core 2 Quad 2.5 GHz
GFX: XFX Nvidia Geforce 8600GT
Mobo: EVGA 750i FTW
RAM: Corsair Dominator 2GB
HDD: Western Digital 500 GB
I also have no special effects nor do I use any proprietary drivers (I did before I re-installed).
Any ideas of what it might be? Is it a bug which came with the updates, like a bug in the kernel?
I've noticed that there actually are alot of threads like mine around here, but none have provided a working solution.
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May 10, 2010
It seems that my Ubuntu 10.04 (clean install) to randomly freeze / hang (mouse/keyboard unresponsive, only a hard reboot is available as option) but with no garbled screens/windows/etc. There's no pattern why or any application that could be responsible. It could happen ten minutes after it is started or after 2 days but at some point and suddenly the system will become totally unresponsive, freeze and hang up. I used the same PC with Karmic Koala and releases before that (sometimes on for days) with no such problem so it shouldn't be a hardware problem.
I thoroughly check system logs after the hard reboot (System > Administation > Log File Viewer) and there's no entry around the time of each freeze / hang to pinpoint me to something.
The only thing that is certain is that the following errors / warnings always appear in .xsession-errors file:
Here is also some info about my system:
M/B: ASUS P4R800-V DELUXE
CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz
RAM: 1GB
Graphics: ATI Radeon 9100 IGP
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Aug 31, 2010
My issue is: I am "locked" on kernel 2.6.18-164, I just can't get my server up and running with any later release. It simply hangs at "Starting udev".
The hardware is:
MB: Asus M2N32-Deluxe
CPU: AMD Phenom(tm) II X4 920 Processor
Boot FS: Ext2
RootFS: xfs
RAM: 4Gb
I have 2.6.18-194.el5 running on other machines.
PS: I'm about to install/update a fresh 5.5 disc for testing purpose anyway. I'll update here if it works.
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Jul 15, 2011
I'm migrating from XP to Ubunta 11.04. My PC: Toshiba Sat A30-921 L/top CPU: Pentium(R) 42.84GHz RAM: 512Mb Display Adapter: ATI Radeon 9000 IGP K/board: std 102/103 PS2 Pointing Device: Alps PCMCIA Adapter: ENE CB1410 Cardbus Controller Wireless Adapter: D-LINK GDWA 610
The installation went well from start to finish. Made it dual boot with XP. Hooked in the Eth cable & went online right away. Then enabled the W/less network adapter - all OK. Using 'Classic', so it's just normal screen after boot. Problem is random 'Freeze' or 'Hang Ups'. It's hung 12 - 14 times in 2 days! K/brd T/pad frozen out. Only recovery is to use master power switch & reboot. NEVER hung in XP in 7 years! (done other bad things though) Does Ubunta have switch like Cntrl + Alt + Delete in Win?
Tried many combinations but to no avail. I've tried quite a few Linux flavours (from Live CD) & they all displayed the same fault!! Before it hangs, I've been able to browse around Ubunta Apps: Places: System: Firefox: Internet: etc. Where do I start to track the problem down? I'm vaguely familiar (XP) with Terminal & cmd line processor but dont know any of the codes used.
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May 27, 2010
This has been confusing me for a while. It usually takes about 4 or 5 times of hitting the power button for it to start up to the login screen. All it does is go to the Ubuntu splash screen and that's it. The colored dots don't change or anything. It just sits there. I ran the memory test to be sure it wasn't RAM and it ran fine.
System specs:
OS: 10.04
CPU: E8400
GPU: 9600GT
Hard drive: 250 GB Seagate
RAM: 2 GB
Mobo: 780i SLI FTW
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Jun 15, 2010
I've been getting a random hard freeze, in both windows and linux, so I'm pretty sure it's not a software thing. I've run memory diagnostics in windows and it came out fine, I'm not sure what other diagnostics I can run. what tools can I run in linux that might help me further diagnose the problem? I haven't installed any new hardware, and I blasted the inside with some compressed air to err on the side of caution, but I still have problems. i'm running the latest ubuntu ver btw
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Jul 5, 2011
I had installed Ubuntu Studio Natty from scratch onto a fresh partition, keeping Ubuntu Studio Maverick on another partition until I was sure Natty was working right. But whenever I tried using Natty the system would totally freeze, or so it seemed. Everything would freeze except the mouse pointer. Even the clock, which I have displaying seconds, would stop counting. I searched all over and there seemed to be little agreement about the cause of this, but a lot of people seemed to be experiencing it. It seemed to me however that there was a trend toward blaming new 3D features, and some tips suggested starting with 3D display features disabled; I forget now how to do that, but I do know that it didn't work for me.
After sort of giving up for a couple of months and going back to Maverick I had the idea to try installing (actually "activating") the Nvidia proprietary driver---and the problem seems to have been totally fixed. That's literally all I did, and for at least a few weeks, maybe a month or more, no freezes.
I should add that after a while the symptoms revealed that it wasn't necessarily that the computer was freezing, it was that it would rev up to maximum CPU usage and stay there, with a restart the only solution, until it would start again, seemingly at random, after several minutes to a half hour usually.
I have a Sony Vaio VPCF116FX laptop.
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Jun 9, 2011
I have a fresh installation from the demo ISO image of F14 running on an Acer TravelMate 4200. The system is a Dual Boot with win Vista. Windows Vista runs without any problems but when using F14 a kernal crash constantly occurs and it then hard freezes or hangs and the machine needs to be cold booted. There is nothing in particular that I am doing either, the problem happens when the machine is idol or when I am working in various apps.
The F14 system is completely up to date running kernel version 2.6.35.13-91.fc14.i686. The following error below is from the automatic bug reporting tool and I have reported this using the tool:
Package: kernel
Latest Crash:Sat 04 Jun 2011 14:55:00
Command: not_applicable
Reason: BUG: unable to handle kernel NULL pointer dereference at 000000f8
Comment: None
Bug Reports:
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Jun 4, 2011
I have installed Ubuntu 11.04 64 bit desktop version on ext4 partition without swap. I have maximus iv extreme motherboard with 8 Gbytes RAM. Using 3 internal ntfs formatted hard drives and 3 external ntfs usb 2.0 hard drives.When I am trying to copy or move files FROM or TO any ntfs partiton it is 90 percent chance it is going to freeze.For copy/moving files I am using krusader run as ROOT or as user without root privilege or Nautilus as user without root privilege. It wasn't possible to switch to another terminal - it simply does not react on keyboard or mouse input and only hard reset is possible (scares me because of ntfs disks)From this point of view I have suspicious on ntfs driver but:I am completely beginner in linux and I am looking for help to navigate me how to investigate to find what is causing the problem eventually to solve it?
According to my experience it seems to does not matter if hard disk is internal or external connected through SATA II or SATA III or USB 2.0. I have tried to manipulate with ntfspartitions through the vmware or virualbox or truecrypt software or just do a simplecopy/move files - it have has always the same results - freeze. There is not possible to say how long it is going to work properly and when it is going to freeze - sometimes it's working hour, sometimes it's working couple of seconds - no matter if it is read or write operation/s within ntfs partition.
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Dec 18, 2009
I just installed Fedora 12. Now i've seen a few other threads but they seem to have all the conclusion that its the Nvidia drivers at fault. Well i have an ATI Mobility Radeon 3400 series. I can login, and navigate for a little bit, then it just randomly freezes. I've booted to both gnome and KDE, kde freezes almost immediately w/o letting me navigate much. Gnome takes a bit and then freezes on me. I managed to login once and go like 6 minutes then i thought it was worked out, rebooted and boom, froze up again. I can still move my mouse but can't click or use keyboard. Ctrl+Alt+Backspace doesn't work either .....
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Oct 1, 2010
As this thread [URL]... reached over thousand posts, it's obvious that these freezes (which actually boils down to keyboard and mouse not being listened to by X server, so "not working") hit large numbers of Ubuntu users. As that thread is already very large and hard to read I'd like to advance a hypothesis here : This problem occurs only on multi-core CPUs.
I've installed 10.04 on two machines: and old box with a Duron and new one with quad core. The old box runs just fine with 10.04. The new one - you know Has anyone exeprienced this problem on a single core machine?
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Oct 14, 2010
I am a Ubuntu user since a few years (Breezy Badger was my first) now but I still don't know much about computers or commands so please bear with me. I used 10.04 on my HP pavillion PC of two years old without any problems. Now I upgraded to 10.10 with update manager. And it boots fine, but whatever I do, after aprox. 10 minutes everything just freezes. And I don't remember the magic phrase for soft reset, so I hit the power button.
I have searched the forums and could not find a satisfactory answer to my problem. I found this thread [URL] but have no idea how to do what's requested. Could anyone please tell me what to do?I know how to open a terminal, and type a command or two but that's basically it.
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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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Nov 30, 2010
Keep having random freezes on my laptop.. Its a Dell Stdui 1558 running Ubuntu 10.10 however i dont get the freezes on 10.04.01
So i might have to revert back to 10.40.1 #
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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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Mar 2, 2010
I'm running Fedora 12 with GNOME on an old Toshiba Satellite A15. From time to time I get a system freeze, where everything stops working besides the touch pad (I can move the cursor, just can't click on anything). When I boot up, I see an error message that it skips past before I can read anything, although I have spotted the snippets 'pci' 'error' and what appears to be the 0x at the start of a memory address. When I try and shut down the system (going either by command line or the System->Shut Down part), I get to the part where it says "Unmounting filesystems..." and then it stops right there. When I boot it back up, I get an error that says "A crash in package kernel has been detected."
The same happens when I boot up after the hard freeze. It seems more frequent when I have a heavy load on system memory, but for the most part it seems random. I've seen it crash after 5 minutes with only Pidgin or gedit open, I've seen it run for weeks with over 100 Firefox tabs, Pidgin, 3 documents, and GIMP running, but it seems more likely in the second scenario. It also seems to have a chance of freezing again within 5 minutes of rebooting (even if I don't touch anything after login). I ran Fedora 8 and Fedora 10 on this computer just fine, with most of the same system settings (copied my /home folder for each upgrade). I have a dual-boot system (XP/Fedora), with a third partition for data and a 200MB partition for the boot loader. The partition with Fedora is encrypted, and the crashing while trying to unmount the filesystem implies to me that might be the problem, but whatever it is, it wasn't in Fedora 8 or 10 (at least as far as I could tell).
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Apr 26, 2010
I was opening up a ODG doc and then my pc froze up. I powered it down, but now its telling me upon trying to open up the document again that someone else is accessing it so its locked.
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Jun 14, 2010
I am running Ubuntu 10.04, randomly while working in gnome with no particular application I get a freeze periodically. Neither the mouse or the keyboard will respond. I am running it on a lenovo Z61m laptop. I have had previous experience with Posix systems but I am a recent migrant from XP as my primary operating system. I never had such an issue with this computer which leads me to believe that it is not a hardware issue.
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Jul 22, 2010
Everytime I use keyboard shortcut such as Alt-Tab to switch windows, my whole ubuntu freezes. I can still move mouse pointer but I cannot click anything.
Anyone has an idea?
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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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May 1, 2010
I downloaded and burnt the Kubuntu 10.04 release to a CD. I tried to install it. First time, couldn't find the disks and eventually it froze. Ok, second try, when it's contacting the "time server" (or whatever) another freeze, but this time I notice everything is running fine and then get a nice little image with the current time (increasing seconds and all). Third attemp, clicked the "update this installer" and it went fine. "Yay!" I thought. Well, a few minutes in my beautiful 10.04 system and again, another freeze. Hit the power button and to my surprise a "Shutdown" dialog shows up with a countdown. After 30 seconds it logs out and mouse is working again. I log back in and come here to write this long post, and as I was writing the title "Random mouse/ke..." guess what? Yeah, it froze again. And the little bar that goes after the writing continued happily blinking. Hit the power button but this time mouse and keyboard were still frozen in the login screen.
Short version: mouse and keyboard randomly freeze while the rest of the system apparently work fine.
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Oct 26, 2010
I am using Ubuntu Lucid Lynx 10.04 (64 bits) in my Asus U30JC laptop (Core i3 M350, intel 4500MHD + nvidia 310M with nvidia Optimus, 4GB RAM). I am content with Lucid and I don't want to upgrade to 10.10 for now. However I read that the new 2.6.36 kernel has some good improvements, such as improving system interactivity while intensive I/O (such as copying large files), and improved energy management for i3/i5 processors (which I hope translates into more battery time, which is a problem of Ubuntu vs Win7 in my laptop).
I discovered I had 2 options: compile the kernel myself, or use the Ubuntu Kernel PPA (maintained by the Ubuntu Kernel Team). I decided to use the PPA, so I added it to my software sources and installed the generic"linux-lts-backport-natty" kernel (2.6.36-1).
Package installation went fine, and after reboot, I could log in to the desktop no problem. Everything seemed fine, but after a few minutes, the system freezes completely: mouse did not move, none of the indicators moved, even Ctrl + Alt + F1 did not work.Where is the log file where there might be a message related to the freeze? Do you think that the kernel developers would try to fix a bug that probably only affects people running the 2.6.36-1 kernel on a distribution that was not built around it?
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Oct 17, 2009
Ubuntu 9.04, all updates
Latest firmware, etc
abit SG-95 motherboard
2 GB Ultra DDR2
Intel Celeron 360 cpu
PNY GeForce 9500 GT video
Started 2 weeks ago, random and total freeze of system (video, keyboard, mouse).
Nothing useful in th log, other than it occurs at the same time syslogd restart show up in the log.
I don't even know where to begin, or how to troubleshoot the issue if nothing shows up in the log... could use some help, please.
Problem occurs with or without the nvidia drivers installed. Ubuntu or windows, same thing..connected or not connected to the internet
I've ran every memory test I can find, with no issues reported. HD seems OK. No other symptom that I can find, other than it croaking, usually when I'm in the middle of a broadcast or recording.
Is the only machine I have for now, I need to figure out what's wrong and replace it as quickly as possible, so I can get back to work.
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Jun 3, 2010
I'll start at the beginning. The problem i am about to describe occured in ubuntu 9.10 for the first time (https://bugs.launchpad.net/ubuntu/+bug/480850) and is ironically partly responsible for my switching to debian. which i don't regret, but it seems i can't run from the bug any longer because now it's in squeeze, so i want to fix it or make a proper bug report:
Steps to Reproduce:
1: Suspend Laptop to RAM
2: Resume from Suspend
3: Wait and see, preferably monitoring top:
At some random time, ranging from immediately (black screen after resume) to several hours later, the system will become unresponsive. Switching to tty1 or Alt+Print+K does not work, Alt+Print+REISUB does work. Each freeze is anticipated by a random process (this time it was mandb, was installing something) hogging 100% of CPU, then the System becomes gradually unresponsive within a minute or so (panel, metacity, finally mouse cursor freezes too).
Alternatively, in case of a black screen immediately upon resume, Alt+Print+K works (EDIT: or not), and the system remains usable.
Additionally, i don't know if this is related, i noticed one process using 9999% of CPU for a second according to top, just thought i'd mention it.
This bug constitutes a regression, suspend does work flawlessly on this Laptop in Lenny.
The above is how it presented itself at the beginning on a fresh squeeze install, however, after two days of trying, i additionally get kerneloops messages i did not get before (again, after at least one suspend to ram) and after that the system becomes generally unstable (random applications won't properly open or terminate, including nautilus, evolution, iceweasel). Can this be due to secondary damage from the freezes and alt+print+reisubbing repeatedly?
The good news is, apart from this probably already damaged squeeze install, i have another one on one of my playground partitons, where i avoided suspend so far, so i can still try things out there. (it's kde, but i don't think it's related to the desktop environment).
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Jan 11, 2011
Basically when I add more than a single 2gb RAM module, my computer starts randomly crashing every half hour or so, the screen freezes with no response. I have tested the RAM with memtest 86+, it only happens when there is more than one module. The system is openSuse 11.2 64bit and it had a single 2gb RAM module when I first installed it, and removing all but this seemingly fixes the issue. The following is the error message I get when the system crashes, It seems to continue messaging after the initial visual lockup.
Jan 11 16:34:50 eddie kernel: [ 3129.580690] SysRq : HELP : loglevel(0-9) reBoot Crash terminate-all-tasks(E) memory-full-oom-kill(F) fGldbg kill-all-tasks(I) thaw-filesystems(J) saK show-backtrace-all-active-cpus(L) show-memory-usage(M) nice-all-RT-tasks(N) powerOff show-registers(P) show-all-timers(Q) unRaw Sync show-task-states(T) Unmount show-blocked-tasks(W) dump-ftrace-buffer(Z)
[code]....
I don't know what the problem is, but from searching the web it could be a number of problems, the memory is not being allocated correctly or it maybe there's some conflict no between my ATI HD card/driver (latest driver from ATI repo).
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Feb 19, 2010
I recently tried to upgrade from 2.6.23 to 2.6.32 but kept on getting VFS errors. I had overwritten the old 2.6.23 kernel so there was no going back. Luckily,I had the 2.4.31 kernel still in the /boot directory.
Anyway, I finally got some time to figure out the VFS issues and I managed to solve the VFS kernel panics. It was probably a forgotten configuration setting during the make menuconfig. Now it boots up only to hang right after the "Using /etc/random-seed to initialize /dev/urandom".
Looking at the rc.S script, the next section does the dd if=/dev/urandom of=/etc/random-seed count=1 ...
I know for a fact that it isn't that line that hangs the system. I commented out that line and it still hangs.
Strange thing is that I can boot up 2.4.31 with no problem; but with 2.6.x, I get a hang-up. I did a google and came up with something about rc.udev.new, which I don't have.
Can someone point out to me what is executed right after/etc/rc.d/rc.S? Or maybe point out where it might
be hanging? (To be honest, it's either a hang up or a process that's taking an extraordinary long time to
run.)
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Apr 3, 2011
System is Acer 5020 laptop with 32 bit Ubuntu 10.04 Lucid. I have following "smallish" problem. System freezes suddenly for a few seconds and after the freeze if I run following command to prompt
Code:
tail -n 100 /var/log/messages
I can find a following possibly related error
Code:
Apr 3 08:18:09 acer5020-laptop kernel: [ 1383.202090] ata1.00: configured for UDMA/100
Apr 3 08:18:09 acer5020-laptop kernel: [ 1383.202113] ata1: EH complete
Apr 3 08:18:13 acer5020-laptop kernel: [ 1387.568764] ata1.00: configured for UDMA/100
Apr 3 08:18:13 acer5020-laptop kernel: [ 1387.568786] ata1: EH complete
[Code]...
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May 6, 2011
I'm running a Linux Box on a Seagate Free Agent Dockstar, very limited machine but more than able to do what I need, which is true most of the times. I have the operating system on a flash drive and use an external USB 2 "classic magnetic" Western Digital 1,5TB hard disk for massive storage. Not seldom it happens that the wait for IO % suddenly goes up to almost 100% and the system is on its knees, to the point that is very difficult to even ssh in it; a typical 'iostat -x' in those situations gives output like:
[Code]..
I really think that the drive has hardware issues; I noticed that when it is busy 100% without load it makes a repetitive noise which reminds me of the old day Amiga floppy disks - they made a similar noise like they were going around without a goal. For this reasons the suggestion to move /var and /tmp to the magnetic disk only worsened the situation. I guess the only way to solve this is to buy a new hard drive and backup valuable data ASAP.
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Jan 19, 2010
I'm looking for a script that copies a random .jpg from a random folder in my ~/Pictures folder to my ~/temp folder with a standard filename. This file will then be displayed in Conky. I can fix the last part, but I cannot find a way to do the first part.
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Jun 4, 2010
I have a Ubuntu 10.04 fresh installation on my HP laptop. Installation successful and boot OK. But the desktop randomly freeze. During freeze(about 15s each time), all programs are not responsive. Sometimes I can switch program by click, but program seems locked. How can I know which module cause the freeze?
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