Re: broken dpt_i2o in 2.6.23 (was: ext2 check page: bad entry in directory) (fwd)

On Wed, 12 Dec 2007 14:43:42 +0100 Anders Henke <anders.henke@xxxxxxxx> wrote:

Am 12.12.2007 schrieb Miquel van Smoorenburg:
On Wed, 2007-12-12 at 03:38 -0800, Andrew Morton wrote:
On Wed, 12 Dec 2007 11:58:41 +0100 Anders Henke <anders.henke@xxxxxxxx> wrote:

Hi,

I'd like to let you now that my boxes are running a 32-bit kernel, so
the 64-bit-uncleanliness shouldn't apply to my boxes; however,

http://www.miquels.cistron.nl/linux/dpt_i2o-64bit-2.6.23.patch

fixed the issue on my testbox.

I took a clean 2.6.23, applied patch, recompiled the kernel, reboot: works.

What a huge patch :(

We already reverted the offening patch so I assume that 2.6.24-rc5 is
working for you?

I guess we need to look at restoring "dpt_i2o: convert to SCSI hotplug
model" and then absorbing what Miquel has done there.

This was just a patch I had lying around, if it worked it would confirm
my suspicion, which it has.

The minimal patch which is suitable for 2.6.23-stable and 2.6.24 would
be the attached one-liner. The "dpt_i2o: convert to SCSI hotplug model"
patch could be restored then.

(if the list eats the attachment, it's also available here:
http://www.miquels.cistron.nl/linux/linux-2.6.23+24-dpt_i2o-dma64.patch
)

Anders, does this one-liner patch work for you ?

Got it - and it works!

I took a clean 2.6.23, applied the patch, recompiled the kernel and
rebooted my testbox: came up with the fresh-compiled kernel
(verified by "uname -a").


That looks appropriate for 2.6.23.x:

--- linux-2.6.23.9.orig/drivers/scsi/dpt_i2o.c 2007-11-26 18:51:43.000000000 +0100
+++ linux-2.6.23.9/drivers/scsi/dpt_i2o.c 2007-12-12 13:21:05.000000000 +0100
@@ -905,8 +905,7 @@
}

pci_set_master(pDev);
- if (pci_set_dma_mask(pDev, DMA_64BIT_MASK) &&
- pci_set_dma_mask(pDev, DMA_32BIT_MASK))
+ if (pci_set_dma_mask(pDev, DMA_32BIT_MASK))
return -EINVAL;

base_addr0_phys = pci_resource_start(pDev,0);


However it is a bit mystifying that
55d9fcf57ba5ec427544fca7abc335cf3da78160 would cause a dma mask problem
(isn't it?)

The scsi people might want to restore
55d9fcf57ba5ec427544fca7abc335cf3da78160 and then apply Miquel's patch on
top for 2.6.24, or do it for 2.6.25?
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