Re: Unable to handle kernel paging

[Martin Östlund <mo@xxxxxxxxxxxx>]

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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