[K12OSN] Help VNC crash w/firefox

Wed Apr 15 01:49:09 UTC 2009

As I recall, the X11 issue happens regardless of which browser you use, 
be it Firefox, Konqueror, Epiphany, CucamongaBrowser, etc.

But he's using VNC, so this might not necessarily apply anywhere near to 
the same degree.  My guess is that VNC is probably much like the early 
Citrix RDP clients that could run in relatively low DRAM.

Those PS/ValuePoint 6381's use 72-pin SIMMs.  What I would suggest 
Alberto do, if he wants to use those ValuePoints, is either of the 
following:

1.)  Pick up some 72-pin SIMM memory, enough to upgrade to at least 8MB 
(more is better, of course).  Or....

2.)  Cannibalize DRAM from some of those 1,500 and make 750 of them with 
8MB DRAM, since he's discovered that 8MB works.

Either way, it looks like he's going to have to upgrade the DRAM on 
those boxes.

--TP
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Rob Owens wrote:
> I recall a lot of discussion about 6 months (or maybe a year) ago about
> Firefox causing thin clients to crash when many tabs were open.  I think it
> boiled down to images that Firefox loads get cached by the X server, and
> once the X server is out of RAM it crashes.  You have only 4 MB for your X
> server, so it is crashing instantly (images on your home page use up all 4
> MB, perhaps).
>
> Have you tried other browsers?  I'm not sure if it's a Firefox thing or if
> all browsers will behave the same.
>
> -Rob
>
> On Tue, Apr 14, 2009 at 07:30:56PM -0300, Alberto Castillo wrote:
>   
>> Hi everybody!
>> I write from Argentina.
>>
>> I recently build a micro-distro that runs with i486 w/4MB ram (yes...
>> just four megas).
>> This micro-distro have a Xclient from a vnc-client (svncviewer).
>> All apps run nice and with a good performance, but when I try to
>> navigate with firefox, the vnc connection closes and the Xclient
>> crashes and freeze!!!...
>>
>> Here a only that I can get of /var/log/messages: (I login w/user 'educa1')
>>
>> *****************************************************************
>> Apr 14 09:23:58 server xinetd[7823]: START: vnc-800x600x16 pid=8789
>> from=192.168.0.100
>> Apr 14 09:24:23 server gconfd (educa1-8890): comenzando (versión
>> 2.14.0), pid 8890 usuario «educa1»
>> Apr 14 09:24:23 server gconfd (educa1-8890): Se resolvió la dirección
>> «xml:readonly:/etc/gconf/gconf.xml.mandatory» a una fuente de
>> configuración de sólo lectura en la posición 0
>> Apr 14 09:24:23 server gconfd (educa1-8890): Se resolvió la dirección
>> «xml:readwrite:/home/educa1/.gconf» a una fuente de configuración
>> escribible en la posición 1
>> Apr 14 09:24:23 server gconfd (educa1-8890): Se resolvió la dirección
>> «xml:readonly:/etc/gconf/gconf.xml.defaults» a una fuente de
>> configuración de sólo lectura en la posición 2
>> Apr 14 09:24:25 server hcid[2127]: Default passkey agent (:1.525,
>> /org/bluez/applet) registered
>> Apr 14 09:24:25 server pcscd: winscard.c:304:SCardConnect() Reader
>> E-Gate 0 0 Not Found
>> Apr 14 09:24:25 server last message repeated 4 times
>> Apr 14 09:24:25 server gconfd (educa1-8890): Se resolvió la dirección
>> «xml:readwrite:/home/educa1/.gconf» a una fuente de configuración
>> escribible en la posición 0
>> Apr 14 09:25:46 server xinetd[7823]: EXIT: vnc-800x600x16 status=0
>> pid=8789 duration=108(sec)
>> Apr 14 09:25:53 server gconfd (educa1-8890): El servidor GConf no está
>> en uso, cerrándolo.
>> Apr 14 09:25:53 server gconfd (educa1-8890): Finalizando
>> ********************************************************************
>>
>> As you can see, xinetd suddenly closes the vnc connection.
>> When I put more ram the crash dissapear (4MB more, total=8MB), but I
>> really need to use this machines (near of 1500) of 4MB ram, the
>> machines are a IBM valuepoint-425SX model 6381.
>> A few days ago, I can not neither open firefox (the free mem that bios
>> tell me are 3072Kb, kernel 509Kb-bzipped, rootfs-290kb-gz).
>> Next, I disable the ROM in RAM and I get near of 320Kb, and then I can
>> navigate only in some pages, that have a few text nothing more...
>> I did read that is a bug of Xorg, and I did update it, but nothing....
>> I have been thinking come back to fedora 5 -4 -3 -2 -1 or RH9, and try
>> to get some repos (especially non-free)
>> Any can help me? or give me any idea?
>> Thankyou a lot!
>> Alberto Castillo
>>
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>
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