What is .WITH. the Debian amd64 kernel and SpeakUP?

Kirk Reiser kirk at braille.uwo.ca
Fri Sep 17 09:09:39 EDT 2010


Well you know Igor, I'm getting pretty old so I don't remember the
problem you are describing except as some vague memory possibly.  The
problem I'm speaking of happens on all quad core machines as far as I
know.  At least, everyone I know with a quad core box.  It has nothing
to do with amd64 or not.  The problem may also show up on dual core
machines except that it happens with less frequency thus not being
noticed as the same issue.

On Thu, 16 Sep 2010, Igor Gueths wrote:

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> Hello Kirk. Now that you mention it, I remember awhile back discussing this very
> issue with William a while back; of course presumably, at that time the problem
> was assumed to be within Espeakup as far as I know. I was just curious if you
> were referring to the same problem or something else similar?
> On Thu, Sep 16, 2010 at 01:43:44PM -0400, Kirk Reiser wrote:
>> There seems to be a bug in speakup running on quad core processors
>> which produces garbled speech output occasionally.  I have not been
>> able to nailed down an exact situation which will consistantly produce
>> the effect but it happens regularly.  There must be some lock which is
>> not set and therefore the text gets into the output buffer in a
>> disordered fashion.  Reviewing the screen will of course read it
>> correctly.
>>
>>   Kirk
>>
>>
>> On Thu, 16 Sep 2010, Gaijin wrote:
>>
>>> On Thu, Sep 16, 2010 at 07:38:10AM -0500, Christopher Brannon wrote:
>>>> 1. Which synth are you using?
>>>
>>> 	Both the speakup_ltlk, loaded from /etc/modules, and
>>> speakup_soft, loaded from /etc/rc.local with the commands:
>>>
>>> rmmod speakup_ltlk
>>> modprobe speakup_soft
>>> espeakup
>>> speakupconf load
>>>
>>>
>>>> 2. Which version of the kernel are you using?  (uname -a)
>>>
>>> Linux rivensight 2.6.32-5-686 #1 SMP Wed Aug 25 14:28:12 UTC 2010 i686
>>> GNU/Linux
>>>
>>> 	It's the unaltered Debian Squeeze kernel that came from the
>>> amd64 installation disk, and I'm told, includes the speakup modules
>>> compiled into the kernel, and running on a I7-930 Quad-Core CPU on a
>>> SuperMicro X8STE motherboard with 24G's of Kingston memory.  I use the
>>> Orca screen reader for the GUI.  I'm surprized that it's a 686 kernel,
>>> but that's what Debian gave us for the 64-bit, Core-2 platforms, so I
>>> gather that it's the correct one.
>>>
>>>
>>>> 3. Which version of the Speakup package are you using?>
>>>
>>>> From /var/log/dmesg Sorry for not word-wrapping):
>>>
>>> [    6.214497] speakup: module is from the staging directory, the quality is unknown, you have been warned.
>>> [    6.217153] speakup 3.1.3: initialized
>>> [    6.217157] synth name on entry is: ltlk
>>> [    6.217339] initialized device: /dev/synth, node (MAJOR 10, MINOR 25)
>>> [    6.217792] speakup_ltlk: module is from the staging directory, the quality is unknown, you have been warned.
>>> [    6.218396] synth probe
>>> [    6.218398] Ports not available, trying to steal them
>>> [    6.220396] LiteTalk: ttyS0, Driver Version 2.10
>>> [    6.255596] LiteTalk: ROM version: <FF>2.42A
>>>
>>> 	After the above, the loop module loads, and the line in
>>> /etc/modules is simply "speakup_ltlk", which appears to work just fine
>>> when I bother to turn on the LiteTalk.  Since I don't appear to have any
>>> problems booting up, I leave the thing switched off.  The synth is
>>> connected to ttyS0.  ttyS1 is unused (no plug), ttyS2 is a US Robotics
>>> PCI modem, and ttyS3 is on a Axxon searial/parallel PCIE card, as the
>>> mobo came without a friggin printer port.  Both cards are reported to
>>> work flawlessly with Linux.  Lemme know if you need the output from
>>> something like lshw or something for this...
>>>
>>> 				Michael
>>>
>>> _______________________________________________
>>> Speakup mailing list
>>> Speakup at braille.uwo.ca
>>> http://speech.braille.uwo.ca/mailman/listinfo/speakup
>>>
>>
>> --
>> Kirk Reiser				The Computer Braille Facility
>> e-mail: kirk at braille.uwo.ca		University of Western Ontario
>> phone: (519) 661-3061
>> _______________________________________________
>> Speakup mailing list
>> Speakup at braille.uwo.ca
>> http://speech.braille.uwo.ca/mailman/listinfo/speakup
>>
>> --
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>
> - --
> Igor
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>

--
Kirk Reiser				The Computer Braille Facility
e-mail: kirk at braille.uwo.ca		University of Western Ontario
phone: (519) 661-3061



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