[K12OSN] FF and big images freeze

[Jim McQuillan]

Mella,

You probably don't have enough ram in the terminals. 

Firefox asks the Xserver to allocate ram for images and fonts.  The 
problem is, Firefox never tells the Xserver that it's Ok to release the 
memory, even long after you've left the page that is being viewed.

So, Firefox keeps asking, and the Xserver keeps allocating until it 
finally runs out of ram.  Bigger images will do it more quickly.

Once the Xserver allocates all available ram, bad things happen.  
Sometimes the kernel kills the Xserver, sometimes the network stack 
locks up, sometimes the workstation just freezes.

So, I suggest you try turning on Swap over NBD.

with k12ltsp, it should be as simple as:


      USE_NBD_SWAP = Y

in the lts.conf file.

That is, assuming you are using K12LTSP-5.0.0.  If you are using an 
older version, then you'll need to turn on swap over NFS (instead of NBD).

The parameter for that is:

    USE_NFS_SWAP = Y

Hope that helps,

Jim McQuillan
jam at Ltsp.org



Mella wrote:
> Hello!
>
> I have big problems with big jpg imagages in Firefox.
> If I open big image, it get half of them and then freezes. Only way to 
> continue is switch terminal off. Sometimes it just closes FF.
>
> I noticed that not all terminals have such behaviour.
> I have problem with Compaq Deskpro SFF Celeron 300A /64MB RAM/Ati rage 
> pro turbo/intel 100 NIC.
>
> And no problem with Compaq Deskpro SFF P3 /128MB RAM/Ati rage pro 
> turbo/intel 100 NIC.
> Also all OK with IBM T20 laptop.
>
> I don't know where is problem.  With FC2 was all ok. With FC4 and 5 I 
> have problems.
> Any ideas?
>
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