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SubjectRe: [BUG] unable to handle kernel paging request in next-20080516
Date
<posted & mailed>

(I've dropped akpm because the mail server doesn't like where I'm sending
from with this address)

Greg KH wrote:

> On Sun, May 18, 2008 at 02:14:23AM -0700, Andrew Morton wrote:
>>
>> (cc's added)
>>
>> On Sat, 17 May 2008 12:50:24 +0000 (UTC) Sitsofe Wheeler
>> <sitsofe@yahoo.com> wrote:
>>
>> > BUG: unable to handle kernel paging request at e6f17fac
>> > IP: [<c02604d6>] scsi_bus_uevent+0x1/0x17
>> > *pde = 2714b163 *pte = 26f17160
>> > Oops: 0000 [#1] DEBUG_PAGEALLOC
>> > last sysfs file:
>>
>> I thought we'd already fixed this?
>
> If you want to test them out yourself, the patches are this one first:
>
http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/gregkh-01-driver-core.current/driver-core-add-device_create_vargs-and-device_create_drvdata.patch
> and then add any one of the rest of the patches in the directory at:
>
http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/gregkh-01-driver-core.current/
> depending on the subsystem you are having problems with. There are 12
> different ones in there.
>
> hope this helps,

Bad news - the patches all applied to 2.6.26-rc2 / current HEAD but the
problem remained.

The trace at the end seems slightly different though (alas I have to
transcribe):

BUG: unable to handle kernel paging request at e725ffac
IP: [<c025fdb6>] scsi_bus_uevent+0x1/0x17
*pde = 27845163 *pte = 2725f160
Oops: 0000 [#1] DEBUG_PAGEALLOC
[...]

dev_uevent
dev_uevent
kobject_uevent_env
mutex_unlock
kobject_uevent
device_add
mutex_unlock
scsi_sys_add_sdev
scsi_probe_and_add_lun
mark_held_locks
__scsi_add_device
ata_scsi_scan_host
ata_host_register
ata_pci_sff_activate_host
ata_sff_interrupt
ata_pci_sff_init_one
pci_device_probe
driver_probe_device
__driver_attach
bus_for_each_dev
driver_attach
__driver_attach
bus_add_driver
driver_register
__pci_register_driver
kernel_init
via_init
kernel_init
kernel_init
kernel_init
krenel_thread_helper

--
Sitsofe | http://sucs.org/~sits/


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