linux-kernel - Re: e2b2rom_init_one(): Unable to register resource

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Date:	Mon, 26 Feb 2007 20:08:10 +0300
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	Dan Aloni <da-x@...atomic.org>
Cc:	linux-kernel-list <linux-kernel@...r.kernel.org>
Subject: Re: e2b2rom_init_one():  Unable to register resource

On Mon, Feb 19, 2007 at 11:16:13PM +0200, Dan Aloni wrote:
| Cyrill Gorcunov wrote:
| >Hi, Dan
| >
| >did you try setup forsed 8MB value on window->phys?
| >
| >  
| Actually, I tried to force it at 4MB starting at 0xff800000 since it 
| made much sense looking at the e820 map. Or maybe I misunderstood 
| something. It crashed with this:
| 
| <7>[ 9237.432181] esb2rom: esb2rom_init_one(): Unable to register 
| resource 0xff800000-0xffbfffff - kernel bug?
| <1>[ 9237.432262] Unable to handle kernel paging request at 
| ffffc20010500000 RIP:
| <1>[ 9237.436910] [<ffffffff8041f7ba>] cfi_probe_chip+0x14a/0x10e0
| <4>[ 9237.445246] PGD 12fc20067 PUD 12fc21067 PMD 12fcf6067 PTE 0
| <0>[ 9237.451057] Oops: 0002 [1] SMP
| <0>[ 9237.454346] do_IRQ: 1.251 No irq handler for vector
| 
| I can dump here the disassembly of cfi_probe_chip if it's interesting...
| 
| -- 
| Dan Aloni
| XIV LTD, http://www.xivstorage.com
| da-x (at) monatomic.org, dan (at) xiv.co.il
| 

Hi Dan,

what's new with the problem? Did you get any solution? Btw, I've read
the comments in esb2rom.c and because it's grown from ichxrom.c it seems
esb2rom.c has a bug in esb2rom_init_one(). Actually I think you should
receive a message like this:

	"Rom window is closed"

as it's done in ichxrom.c because you've got

	pci_read_config_byte : 4

and that's not the number esb2rom_init_one is expecting to process with...

		Cyrill

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