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List:       linux-kernel
Subject:    Re: 2.6.9rc2-mm4 oops
From:       Bjorn Helgaas <bjorn.helgaas () hp ! com>
Date:       2004-09-30 23:04:28
Message-ID: 200409301704.28573.bjorn.helgaas () hp ! com
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On Thursday 30 September 2004 3:22 pm, Bjorn Helgaas wrote:
> Fernando Pablo Lopez-Lezcano <nando@ccrma.Stanford.EDU> wrote:
> > inserting floppy driver for 2.6.8.1-1.520.1nov.rhfc2.ccrma
> > Unable to handle kernel paging request at virtual address f8881920
> >  printing eip:
> > c0251d3d
> > *pde = 37f5f067
> > Oops: 0002 [#1]
> > PREEMPT 
> > Modules linked in: floppy(U) sg(U) dm_mod(U) uhci_hcd(U) ehci_hcd(U)
> > button(U) battery(U) asus_acpi(U) ac(U) ext3(U) jbd(U) raid5(U) xor(U)
> > sata_via(U) sata_promise(U) libata(U) sd_mod(U) scsi_mod(U)
> > CPU:    0
> > EIP:    0060:[<c0251d3d>]    Not tainted VLI
> > EFLAGS: 00010246   (2.6.8.1-1.520.1nov.rhfc2.ccrma) 
> > EIP is at acpi_bus_register_driver+0xd2/0x165

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?

["diffs.hpet" (text/x-diff)]

--- 2.6.9-rc2-mm4/drivers/char/hpet.c	2004-09-27 10:12:16.000000000 -0600
+++ hpet/drivers/char/hpet.c	2004-09-30 15:44:39.000000000 -0600
@@ -925,7 +925,7 @@
 	return 0;
 }
 
-static struct acpi_driver hpet_acpi_driver __initdata = {
+static struct acpi_driver hpet_acpi_driver = {
 	.name = "hpet",
 	.ids = "PNP0103",
 	.ops = {

-
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