kernel: Page has mapping still set

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Have an HP Proliant DL380 that has started to oops with the following
messages:

Mar 31 23:21:44 db01-01 kernel: Page has mapping still set. This is a
serious situation. However if you
Mar 31 23:21:44 db01-01 kernel: are using the NVidia binary only module
please report this bug to
Mar 31 23:21:44 db01-01 kernel: NVidia and not to the linux kernel
mailinglist.
Mar 31 23:21:44 db01-01 kernel: ------------[ cut here ]------------
Mar 31 23:21:44 db01-01 kernel: kernel BUG at page_alloc.c:225!
Mar 31 23:21:44 db01-01 kernel: invalid operand: 0000
Mar 31 23:21:44 db01-01 kernel: nfs lockd sunrpc tg3 microcode keybdev
mousedev hid input ehci-hcd usb-uhci usbcore ext3 jbd cciss sd_mod
scsi_mod

The "nv" module isn't used, so that's not the problem...

I've seen limited references to this problem, although some hint that it
may be a memory failure on the machine.  Has anyone else worked this
problem and can confirm or deny that?

Has happened now on kernels kernel-smp-2.4.21-37.0.1.EL and
kernel-smp-2.4.21-40.EL.

Thanks in advance for any opinions.
-Alan

===========
Alan Sparks, UNIX/Linux Systems Administrator    <asparks@xxxxxxxxxxxxxxxx>


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