linux-kernel - Re: long-term regression

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Date:	Thu, 21 Jun 2007 09:33:32 -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 Thu, 21 Jun 2007, Randy Dunlap wrote:

> 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.

it's a parallel port printer, not a usb printer. when I get home from 
usenix I'll reboot into a new kernel and post the boot logs for both 
configs.

David Lang
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