What cause Linux hang

[garry_3peace]

I know that everybody said Linux seldom freeze or hang. But my Kubuntu Gutsy sometimes hang suddenly. I am suspecting the Opera Browser. Only suspect, I don't have proof that this program cause my computer freeze.

When it is hang, I can use Ctrl+Alt+Esc to kill the program. And usually after killing Opera the computer back to normal. But I don't really believe the Opera is the culprit. (The very last time it occurred, I can't use this way, so I use the last method -> Magic Sysrq)

So do anyone know, usually what or why the Linux may hang? Maybe someone can give the link of reference?

Thanks before.

[dibl]

Re: What cause Linux hang

I know that everybody said Linux seldom freeze or hang. But my Kubuntu Gutsy sometimes hang suddenly. I am suspecting the Opera Browser. Only suspect, I don't have proof that this program cause my computer freeze.

When it is hang, I can use Ctrl+Alt+Esc to kill the program. And usually after killing Opera the computer back to normal. But I don't really believe the Opera is the culprit. (The very last time it occurred, I can't use this way, so I use the last method -> Magic Sysrq)

So do anyone know, usually what or why the Linux may hang? Maybe someone can give the link of reference?

Thanks before.

If you want to observe what is using all your resources at the moment when it "hangs", first open the Konsole and run

top

then run Opera or whatever browser you use, and watch the list in "top".

[garry_3peace]

Re: What cause Linux hang

Okay, I'll try to look that.

But anyway, usually(in general) what cause the Linux hang? Could it be virus? spyware or something else like that?? I just want to know every possibility what cause the Linux hang....

[dibl]

Re: What cause Linux hang

But anyway, usually(in general) what cause the Linux hang?

Actually, your Linux OS will almost never hang. What you see when everything "freezes" is usually some problem with an application or the X server. If you set up a monitor like gkrellm, you will see that the system is still running, but something takes the CPU or a hard drive or the ethernet connection up to 100%, so nothing else can happen for some time.

Also, if it is all frozen so bad that you can't use the keyboard to open a Konsole and kill the bad process, you can always restart the system with Alt-SysRq RSEIUB.

[garry_3peace]

Re: What cause Linux hang

Um..

Btw, I think it is not Opera. Yesterday I use Firefox, and the problem occurs (hang/freeze again). Then it could be Amarok. When I watch 'top' amarokapp is always at the top (I sort by memory usage). Could because I put more than 4000 songs to the play list cause it unstable??

The second could be BOINC. BOINC is consume a lot of resources too... I must goggling to find out....