Re: 2.2.7 Oops on SMP machine in __free_page() while loading executable

Stephen C. Tweedie (sct@redhat.com)
Wed, 16 Jun 1999 17:31:43 +0100 (BST)


Hi,

On Fri, 11 Jun 1999 09:36:27 -0700 (PDT), Mark Hanson <mbh@netcom.com>
said:

> This is from our SMP machine which has been experiencing bi-weekly
> silent freezes with kernels all the way back to 2.0.3x. This morning I
> actually got an Oops. I don't know if this is related to the silent
> freezes or not.

> Unable to handle kernel NULL pointer dereference at virtual address 00000004
> current-> tss.cr3 = 05df6000, %cr3 = 05ef6000
>>> EIP: c01221b8 <__free_page+ac/ec>

An oops in __free_page usually means hardware memory corruption.
There's not much here to base a software diagnosis on --- is there any
particular load pattern which produces the fault?

--Stephen

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