Do you have OEM kernel or is it your own compilation?
Try another kernel? (Since it obviously isn't the hard drive).
----- Original Message -----
From: "Martin Östlund" <mo@microsaft.nu>
To: <security-discuss@linuxsecurity.com>
Sent: Wednesday, January 15, 2003 5:14 AM
Subject: Re: Unable to handle kernel paging
> Hi again list.
>
> my error happened again, this time the errormessage is:
>
> Jan 14 21:58:24 lysithea kernel: *pde = 00000000
> Jan 14 21:59:26 lysithea kernel: *pde = 00000000
>
> then it totally hangs and is unavaible :(
>
> Anyone knows what this can be? I tried the earlier suggestion from the
> list by disabling the swap, and it has been without swap for about 2 days.
> (no, the swap didn't ran out).
>
> Cheers,
> Martin
>
>
> > What kind of hard drive? If the hard drive is having a read error when
> > attempting to grab a chunk of virtual memory stored on the swap
partition,
> > that is a critical error which will freeze any process or thread relying
on
> > that chunk of memory. Your WWW server may be running just fine because
it's
> > currently retained in RAM and not swapped out.
> >
> > Download a hard drive utility from the hard drive manufacturer and boot
to
> > an old DOS disk to run it.
> >
> > You could alternately boot Linux to single user mode, unmount the swap
> > partition and try to run an extensive fsck check against it.
> >
> > I would try this both now and right after the problem occurs.
> >
> > You could also disable your swap partition (/etc/fstab) since you have a
> > fair amount of RAM just to prove if it's the hard drive or other
problem. I
> > disagree with earlier posting that your RAM could be the problem. That
would
> > show other critical errors that would be unrelated to virtual memory.
While
> > waiting to see if a problem occurs, keep another machine telnetted into
your
> > server running the "top" process so that you get a snapshot of the RAM
and
> > process running just before the freeze occurs.
> >
> >
> >
> >
> >
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> >
> >
>
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