Re: 2.6.9rc2-mm4 oops

From: Bjorn Helgaas
Date: Fri Oct 01 2004 - 10:07:49 EST


On Thursday 30 September 2004 7:36 pm, Fernando Pablo Lopez-Lezcano wrote:
> On Thu, 2004-09-30 at 16:04, Bjorn Helgaas wrote:
> > Like Pierre, I was able to reproduce this with DEBUG_PAGEALLOC.
> > I found a struct acpi_driver in hpet.c that was erroneously marked
> > __init, and the attached patch fixed the oops for me. Can you give
> > this a whirl?
>
> Sorry, I did, and still get the oops. This is it this time (looks the
> same to me):
>
> inserting floppy driver for 2.6.8.1-1.520.1nov.rhfc2.ccrma
> Unable to handle kernel paging request at virtual address f8881920

Can you post your .config? If you don't have CONFIG_HPET turned
on, my patch wouldn't help. Also, can you look up the bad address
(e.g., f8881920) in /proc/kallsyms? When I reproduced it, the
faulting address was hpet_acpi_driver. Maybe you've found a
similar bug in a different driver.

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