when the computer or an application is not responding

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3
votes
3answers
1k views

Ubuntu 12.04 Gnome 3 “freezes” randomly - not a normal freeze though

Since upgrading to 12.04, I've randomly experienced this strange phenomenon where my mouse mostly doesn't work and keyboard mostly does. I have not been able to identify a cause for this. Sometimes it ...
3
votes
0answers
75 views

Window content freezes

I recently started using Kanotix, a Debian based distro that loads itself into RAM on boot, and i'm loving it. But this is the second time I have this problem, and I was wondering what caused it and ...
2
votes
1answer
243 views

Local, regular file causes `stat` or `ls -l` to hang

I've seen a few different questions about ls hanging. It's usually because they use the -l switch, which causes a stat on the file, which in turn is a bad symlink or pointing to an NFS mount or some ...
0
votes
0answers
188 views

keyboard lockup after hold ctrl key

With Fedora 17 I have a PS/2-connected keyboard. If I hold just the left CTRL key down for a period (say 5 seconds) then the whole keyboard locks up. The USB-connected mouse still works and I can ...
1
vote
0answers
223 views

Fedora 17 freezes at loading screen with a CD-based installation

I'm trying to install F17 on my laptop (Toshiba A-665 ... 4gigs RAM, nividia gforce GTS350M,core-i7 1.7 GHz processor), but the liveCD boot freezes about 3/4 of the way through the loading icon... ...
5
votes
4answers
424 views

Accidental `nano SomeFile | uniq` renders the shell unresponsive

In my attempt to get unique entries (read lines) out of a simple text file, I accidentally executed nano SomeTextFile | uniq. This "instruction" renders the shell (bash) completely (?) ...
6
votes
1answer
268 views

Untraceable stability problem of 3.6.8 kernel on ASUS P53E

Randomly, but not later than after 10 hours of work, the laptop freezes. Just freezes. Knowing that not all hardware errors are reported back to the user I tried the netconsole. Unfortunately the ...
1
vote
2answers
656 views

Typing in Chromium's/Chrome's Omnibox crashes browser

Very often, when I type something in Omnibox (address-bar), Chromium/Chrome crashes. W/ crash I mean that it freezes and refuses to any signals (mouse, keyboard etc.). This is what got printed out to ...
7
votes
1answer
3k views

Fedora 17 Freezes on Boot

I have been having issues with Fedora 17 not booting after the latest round of updates. I am able to enter the pass for my disk encryption, the boot logo acts normally but after the animation is ...
5
votes
1answer
219 views

Hard drive writes freezing up Gnome

I'm currently running Debian 6.0.5 on my white Macbook 2008 (4,1) and have recently noticed that when I download, move, or decompress a file, Gnome freezes up completely for at least 20 seconds. These ...
4
votes
1answer
1k views

System freezes. Can't find anything in the logs

My linux desktop system freezes (aptosid/debian sid) sometimes and after a reboot I can't find any infos about the reason for the freeze in messages/dmesg/syslog/Xorg.*.log. When it "freezes" I can ...
4
votes
1answer
525 views

Vim high CPU usage upon opening JS files

Vim and especially Gvim stops responding and utilizes 100% of CPU upon opening big .js files (1000+ lines). Pressing Ctrlc stops the process. Whatever Vim does trying to open the file, it displays the ...
2
votes
2answers
9k views

How to fix non-responsive Ubuntu system?

I use Ubuntu. Sometimes, the system does not have any response with mouse and keyboard. Is there any way to solve this problem except hitting the reset button on the machine?
8
votes
1answer
1k views

How to debug system freeze?

I'm experiencing strange bug when I close lid of my laptop - system freezes (no reaction on keys, no response form ssh) hard and displays some strange colour effects. The kernel log (after reboot) ...
0
votes
2answers
716 views

System freezing on Fedora 15 - graphics issue?

I've been using Fedora 15 for a couple months now and haven't had any problems. Last week I switched desks and got a new monitor, and now all of a sudden it will randomly freeze up. Also sometimes ...
2
votes
1answer
131 views

Is this task freeze related to ReiserFS (v3)? (or: is ReiserFS getting so old that it should be actively replaced?)

I just had a weird system freeze that I resolved using alt-sysrq-e. Here's my dmesg: https://gist.github.com/1609263 I was wondering whether it might be some kind of deadlock in the reiserfs3 code ...
7
votes
1answer
363 views

Low battery freezes laptop [closed]

I have a laptop Lenovo G575. MS Windows works without any problems on it, but with Linux, it freezes during login or up to 10 minutes after power on. I have tried Ubuntu, Fedora 15 and 16, Fedora 16 ...
1
vote
3answers
2k views

System freezes when browsing internet

About a week ago my system began to freeze (deadlock, only manual shutdown with laptop button helped) from time to time. The frequency of deadlock is increasing. Today it was about 10 deadlocks with ...
8
votes
1answer
3k views

System hanging when it runs out of memory

I've got an eeePC 900a: it has a 8GB flash as disk and only 1GB of RAM. The Linux distribution installed on it is ArchLinux. When the system runs out of memory it becomes extremely unresponsive: it ...
2
votes
2answers
579 views

How to troubleshoot a computer freeze from liveCD?

I'm helping my dad fixing his old computer. I am now running it from Fedora 16 with XFCE Live CD. If I try to install, as soon as it gets to the part where it writes partition to disk however, the ...
6
votes
2answers
836 views

System often freezes without warning

The system often just freezes up without any warning, it doesn't gradually start getting slower or something like that, and every time I look the avarage system load is below 20% (usually not even ...
1
vote
3answers
3k views

Removing a directory hangs

I'm a non-root user on a shared compile server that mounts /home via NFS from some other host. I have a directory ~/a/b with lots of subdirectories c1,c2,.... I wanted to delete ~/a/b completely, and ...
20
votes
4answers
32k views

How to completely disable swap?

I am using Debian sid, hard drive formatted with ext4, running on linux 3.1 I remember on previous linux versions (maybe before 3.0), if I run out of memory, and swap is not enabled, programs will ...
2
votes
2answers
2k views

Make iotop show only the most disk-intensive item

My laptop (no VM, just plain Ubuntu with encrypted home) freezes for 3 minutes a few times per day. During these 3 minutes, the disk LED indicates intense disk activity, and I can't even move the ...
7
votes
1answer
260 views

Where should I look for error messages after a freeze-up and reboot in Linux?

I was forced to shutdown (using the power button) and reboot after my laptop froze with just a black screen. After such an incident, where should I look for error messages etc. that might indicate ...
1
vote
2answers
459 views

scp hardlocking my server (both ways)

I have this strange issue. scp is hard locking my server. I have tried memcheck, tried downloading big files using wget, tried speed test in openssl and everything works just fine, yet every time I ...
1
vote
0answers
496 views

Using xrandr freezes computer completely

I have the following problem: I have a laptop (open) with an external monitor connected. After boot, everything is perfect - the laptop screen is on the left of the external one and both resolutions ...
4
votes
1answer
1k views

How to quit GNOME file copy GUI after it hangs

Many times I find GNOME file copy GUI tool (Nautilus) irritating when it stops working. It happens when: I cancel the copy or move I try to copy to blue tooth exchange folder to my friends ...
1
vote
5answers
560 views

No response on a Linux machine

I am using centOS, sometimes the system just does not respond at all. In windows box, I can ctrl-alt-delete. On a Linux machine, how should I handle this?
116
votes
3answers
57k views

How to unfreeze after accidentally pressing Ctrl-S in a terminal?

It's a situation that has happened quite often to me: after I press (with a different intention) Ctrl-S in a terminal, the interaction (input or output) with it is frozen. It's probably a kind of ...
7
votes
4answers
2k views

Debugging Linux machine freezes

I have 15 identical Linux RH 4.7 64-bit severs. They run cluster database (cluster is application level). On occasion (every month or so) a random box (never the same though) freezes. I can ping the ...