help fixing speakup hang problem w smp kernels

[Kelly Prescott]

K, I will get on it.
Thanks.



On Tue, 17 Sep 2019, Okash Khawaja wrote:

> Hi Kelly,
>
> Thanks very much for pointing this out :) If you could capture kernel
> dump of this hang that will be a great starting point of the
> investigation.
>
> Best regards,
> Okash
>
> On Sun, Sep 8, 2019 at 3:24 PM Kelly Prescott <kprescott at coolip.net> wrote:
>>
>> I will start with the disclaimer that I know a little C, but I am by no
>> means a kernel developer nor any other kind of developer.
>> I do it for fun or on small projects I need for myself.
>>
>> I have noticed that now that ArchLinux has moved to the Linux 5.x series,
>> my system seems to hang with speakup much more than it ever did before.
>> I do not get the frequent hangs on my Ubuntu 16,4 and 18.4 systems.
>> I get them, just not as frequently.
>> I now have 3 archlinux machines, 2 laptops and one desktop where I can
>> make the machine hang with in 5 minutes of trying.
>> I do this by making sure the machine is busy doing something, network
>> activity, logging etc. Then I opena large file and review the screen with
>> Speakup making my keystrokes faster and faster until the machine hangs.
>> It is also interesting that in my desktop machine when I installed a
>> 4-port network card, the hangs became so bad I had to take it out.
>> When I ran the machine without speakup, they went away, so It was not the
>> network card.
>>
>> Like I said, I can now reliably produce a hang.
>> I know I am not qualified to fix it, but I would like to offer my
>> assistance in providing dumps to assist others in helping find the
>> problem.'
>>
>> I am going to try to get the dumps logged to a serial console and then
>> saved to files.
>> With that said, What information do I need to provide to make this
>> meaningful.
>> What I would like is some instruction and pointers so I can accurately
>> help and not just put out useless noise.
>>
>> As we move toward taking the kernel out of staging, I think we need to fix
>> this as it results in a total hang of the machine.
>>
>> I am willing to grant machine access, make and send crash information, run
>> tests, or anything else I can do to help get this resolved.
>>
>> If someone will reply with what needs to be done from my side, I would be
>> happy to get started.
>>
>> Thanks.
>>
>> -- Kelly Prescott
>> _______________________________________________
>> Speakup mailing list
>> Speakup at linux-speakup.org
>> http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup
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>