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SubjectRe: Oops in 2.6.10-rc1 (almost solved)
On Sun, Nov 14, 2004 at 09:02:33PM +0100, Christian Kujau wrote:
> > Not ready for Linus yet, and you'll need to re-apply the previous
> > edd.S patch which is now reverted in Linus's tree. As your BIOS
> i've applied the patch to a pristine 2.6.10-rc1, so the (currently
> reverted) EDD change is still there. tell me, if the patch had to be
> applied to sth. else.
> but for now i have to say, that it still oopses:

OK, the patch below (which Linus applied to his tree yesterday) should
fix the oopses.

> BIOS EDD facility v0.16 2004-Jun-25, 16 devices found

but the patch to edd.S doesn't resolve that EDD believes you've got 16
devices (I would expect it to report 2, as you have only 2 disks).

Thanks for the quick testing. Back to the drawing board though for
this second part.


Matt Domsch
Sr. Software Engineer, Lead Engineer
Dell Linux Solutions &
Linux on Dell mailing lists @

===== drivers/firmware/edd.c 1.30 vs edited =====
--- 1.30/drivers/firmware/edd.c 2004-06-29 09:44:48 -05:00
+++ edited/drivers/firmware/edd.c 2004-11-13 07:56:00 -06:00
@@ -70,7 +70,7 @@
static int edd_dev_is_type(struct edd_device *edev, const char *type);
static struct pci_dev *edd_get_pci_dev(struct edd_device *edev);

-static struct edd_device *edd_devices[EDDMAXNR];
+static struct edd_device *edd_devices[EDD_MBR_SIG_MAX];

#define EDD_DEVICE_ATTR(_name,_mode,_show,_test) \
struct edd_attribute edd_attr_##_name = { \
@@ -728,9 +728,9 @@

static inline int edd_num_devices(void)
- return min_t(unsigned char,
- max_t(unsigned char, edd.edd_info_nr, edd.mbr_signature_nr),
- max_t(unsigned char, EDD_MBR_SIG_MAX, EDDMAXNR));
+ return max_t(unsigned char,
+ min_t(unsigned char, EDD_MBR_SIG_MAX, edd.mbr_signature_nr),
+ min_t(unsigned char, EDDMAXNR, edd.edd_info_nr));

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