linux-kernel - Re: long-term regression

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Date:	Wed, 27 Jun 2007 00:38:17 -0700 (PDT)
From:	david@...g.hm
To:	Randy Dunlap <randy.dunlap@...cle.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, linux-usb-devel@...ts.sourceforge.net
Subject: Re: long-term regression

On Tue, 26 Jun 2007, Randy Dunlap wrote:

> On Mon, 25 Jun 2007 15:56:17 -0700 (PDT) david@...g.hm wrote:
>
>> due to the size the files are posted at http://linux.lang.hm/linux
>>
>> let me know what else I can send to help.
>>
>> David Lang
>
>
> I suggest that you test 2.6.22-rcN using one or both of these
> boot options:
>
> noisapnp
> pnpacpi=off
>
> Somewhere between 2.6.18 and 2.6.22-development, the ACPI config
> symbol also starting enabling (selecting) PNP.  That's one of many
> differences....

with the 2.6.22-rc4 kernel that I was useing earlier, adding these two 
options clears up the problem. Thanks.

should I test the two individually? or just plan on useing both from now 
on?
I normally disable PnP (both ISA and PCI), should I leave it enabled with 
the newer kernels and this motherboard?


>
> I would also disable CONFIG_USB_USS720, at least for testing.

for ease of testing (I got time to reboot the box around midnight) I used 
the same config as before, so this is still on.

David Lang

>
>> On Mon, 25 Jun 2007, Randy Dunlap wrote:
>>
>>> Date: Mon, 25 Jun 2007 15:40:28 -0700
>>> From: Randy Dunlap <randy.dunlap@...cle.com>
>>> To: david@...g.hm
>>> Cc: Andrew Morton <akpm@...ux-foundation.org>, linux-kernel@...r.kernel.org,
>>>     linux-usb-devel@...ts.sourceforge.net
>>> Subject: Re: long-term regression
>>>
>>> david@...g.hm wrote:
>>>>  On Thu, 21 Jun 2007, Randy Dunlap wrote:
>>>>
>>>>>  Date: Thu, 21 Jun 2007 08:36:59 -0700
>>>>>  From: Randy Dunlap <randy.dunlap@...cle.com>
>>>>>  To: Andrew Morton <akpm@...ux-foundation.org>
>>>>>  Cc: david@...g.hm, linux-kernel@...r.kernel.org,
>>>>>      linux-usb-devel@...ts.sourceforge.net
>>>>>  Subject: Re: long-term regression
>>>>>
>>>>>  On Thu, 21 Jun 2007 05:28:07 -0700 Andrew Morton wrote:
>>>>>
>>>>>>>  On Sun, 17 Jun 2007 10:57:55 -0700 (PDT) david@...g.hm wrote:
>>>>>>>  I haven't had time to bisect this, but I'm having a problem on a
>>>>>>>  AMD64
>>>>>>>  gentoo system where the printer doesn't work with recent kernels.
>>>>>>>
>>>>>>>  2.6.18-rc3 worked
>>>>>>>  2.6.21.1 doesn't
>>>>>>>  2.6.22-rc4 doesn't
>>>>>>>
>>>>>>>  unfortunantly the system is gooted on 2.6.18 at the moment and I'm
>>>>>>>  out of
>>>>>>>  town so my ability to test is limited I can provide the 2.6.22-rc4
>>>>>>>  (attached) and 2.6.18-rc3 configs.
>>>>>>>
>>>>>>>  dmesg appears to show the port being detected, but writes to the
>>>>>>>  port
>>>>>>>  under newer kernels appear to complete, but no data gets to the
>>>>>>>  printer.
>>>>>>>
>>>>>>>  any suggestions other then doing the large bisect?
>>>>>>
>>>>>>  That would be good, thanks.  Please be sure to cc linux-usb-devel on
>>>>>>  the results.
>>>>>
>>>>>  OK, I'm curious about how someone deduced that this is a problem
>>>>>  with a USB printer vs. parallel port printer since the config file has:
>>>>>
>>>>>  CONFIG_PRINTER=y
>>>>>  CONFIG_USB_PRINTER=y
>>>>>
>>>>>  The kernel boot log should probably be posted also.
>>>>
>>>>  here is the dmesg from 2.6.22-rc4 and kern.log showing 2.6.22.-rc4 and
>>>>  2.6.180rc3
>>>>
>>>>  the printer not working is the parallel port.
>>>
>>> This email didn't show up on lkml or linux-usb-devel due to size limits (it
>>> was 900+ KB).
>>>
>>> David, please send your working 2.6.18 config file.
>>>
>>> Can you post the kernel log files on the web somewhere?
>
> ---
> ~Randy
> *** Remember to use Documentation/SubmitChecklist when testing your code ***
>
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