Re: f8: PC dies while using firefox

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On Mon, 2008-04-28 at 19:21 +0530, Manish Kathuria wrote:
> 
> On Mon, 2008-04-28 at 07:04 -0500, Renich Bon Ciric wrote:
> > Hello,
> > 
> > I've been experiencing, lately, some total freezes. The computer just
> > dies:
> > - The mouse won't respond.
> > - The keyboard won't respond.
> > - X can't be restarted
> > 
> > The only option is to hard-reset. Once done, firefox looses most of it's
> > configuration options and sessions. It doesn't loose field history,
> > history and bookmarks.
> > 
> > I have the following addons:
> > 
> > - Google sync
> > - Google toolbar
> > - Google notebook
> > - Facebook toolbar.
> > 
> > I've experienced problems even without these. Tried removing flash with
> > no luck...
> > 
> > Anybody experiencing the same problems? Any idea of what's the problem?
> > 
> 
> Okay a similar thing has happened with me twice recently. I left my
> laptop running F8 ( 2.6.24.4-64.fc8 x86_64 kernel)  on with Firefox,
> with multiple sites opened, Evolution and maybe some small applications
> like a xterm. When I came back after 4-5 hours, I found that the system
> was frozen and I could not access it either through the GUI where I was
> working or through any of the consoles. None of the keys or key
> combinations were working. I could ping it from the other system but
> could not access it through SSH also and was forced to switch off the
> power and reboot it.
> 
> In the both the instances, after rebooting the system I examined the
> system monitoring graphs I generate using a program called systemgraph
> and discovered that over a 3 hour period:
> 
> 1. The physical memory used increased to 2414 MB out of a total of 2508
> MB (as shown by free command). I have 2.5 GB of RAM installed.
> 
> 2. The swap used had increased to 1999.32 MB against the available swap
> space of 2047MB.
> 
> 3. The CPU context switches had increased to a maximum of about 54,000
> per second as compared to the average of about 4500-5000. Similarly the
> pages in and out had increased to about 1700 and 2300 per second against
> the average values between 20-30 per second.
> 
> 4. The disk I/O also showed a 100 times increase and the load average
> also increased manifold
> 
> 5. However, there was no significant change in number of processes or
> number of open files.
> 
> I tried to find out if there was any data regarding resource utilization
> by various processes during this period but could not find any and
> therefore I was unable to pinpoint the cause and was suspecting some
> kernel bug. But looking at your mail, I think it could be firefox which
> is causing the problem. However, no idea why. Maybe someone can explain
> this.

Which version of Firefox are you using? FF2 has known memory leak
problems (in my case it would simply crash after a few days). FF3 seems
much more stable.

poc

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