quick fix for 2.6.34 problem with serial synths

[Joshua Lambert]

I am still having troubles of the kind already being reported.
On Fri, 9 
Jul 2010, Steve Holmes wrote:

> Date: Fri, 9 Jul 2010 18:55:07 -0700
> From: Steve Holmes <steve at holmesgrown.com>
> Reply-To: Speakup is a screen review system for Linux.
>     <speakup at braille.uwo.ca>
> To: speakup at braille.uwo.ca
> Subject: Re: quick fix for 2.6.34 problem with serial synths
> 
> Are people still having trouble with serial synths with latest
> Speakup? I haven't heard any further discussion on this since my last
> post.
>
> On Tue, Jul 06, 2010 at 01:14:55PM -0700, Steve Holmes wrote:
>> I also just tried to run my Speakout serial synth and got errors
>> similar to what others have been reporting.  I will paste in the most
>> relevant line from the system log.
>> Trying to free nonexistent resource
>> <00000000000003f8-00000000000003ff>
>> Before that, tynth probe was followed by being unable to get the port
>> and "trying to steal them."  I got the same results with talkwith and
>> manually trying to do echoing to speakup/synth.
>>
>> In any case, the pride and joy of Speakup with serial synths doesn't
>> work for me either.  This happened with both the binary version on
>> ArchLinux and the git pull from just an hour ago (July 6th).
>>
>> On Tue, Jun 29, 2010 at 10:58:06AM -0500, William Hubbs wrote:
>>> On Sun, Jun 27, 2010 at 01:52:01PM -0400, Kitty Litter wrote:
>>>> In speakup/src/serialio.c comment out the return (NULL); line just below
>>>> __release_region.
>>>> Looking at the kernel source in kernel/resource.c it seems that if
>>>> __release_region fails you would get a kernel message. So speakup seems to
>>>> think it fails but the kernel doesn't.
>>>> Someone with more smarts than me maybe can figure this all out.
>>>
>>> Actually the failure was happening on the line below that in the call to
>>> synth_request_region.
>>>
>>> I don't have a fix for that yet, but now the code is set up to log the
>>> error code and port number if that fails so hopefully we can see what is
>>> going on.
>>>
>>> Are you comfortable with pulling from git and testing with that code?
>>> Any help would be appreciated.
>>>
>>> Thanks,
>>>
>>> William
>>>
>>> _______________________________________________
>>> Speakup mailing list
>>> Speakup at braille.uwo.ca
>>> http://speech.braille.uwo.ca/mailman/listinfo/speakup
> _______________________________________________
> Speakup mailing list
> Speakup at braille.uwo.ca
> http://speech.braille.uwo.ca/mailman/listinfo/speakup
>