when the computer or an application is not responding

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7
votes
2answers
352 views

Low battery freezes laptop

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
1k 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 ...
7
votes
1answer
2k 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
552 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
780 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
2k 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
28k 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
232 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
431 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
451 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
511 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?
96
votes
3answers
43k 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 ...
5
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 ...