[clue] software architecture versus hardware architecture

[Jim Ockers]

Hi Daryl,

daryl kuchay wrote:
> Hi Folks,
>
> I am working on bringing two industrial tablet pc's loaded with linux 
> to the Tuesday meeting. Have one up and running however I am getting 
> stuck with segfaults on the touchscreen driver for the second tablet. 
> More specifically I segfault when running the calibration utility and 
> I think I know why but I need someone to confirm my thoughts.
>
> The tablets in question use geode hardware from AMD. These are i586 
> and lack the nop capability or long noops from what I have read from 
> "synthhead" in the arch linux community. He wrote a kernel patch to 
> bring geodes and transmeta crusoe's up to i686. I know what you are 
> thinking and I only have a 1gb ssd to work with. Not enough room for 
> kernel source and a recompile.
>
> Here is my suspicion:
>
> If the mfgr of the touchscreen wrote their drivers on an i686 or 
> emulated i686 system (utilizing libc6-i686) could that explain why I 
> am getting segfaults when running the calibration utility? I have 
> checked dependencies and I should be good. Xorg and libgtk are the 
> only deps mentioned. dmesg only stated a general segfault 
>
> Thank you in advance
> Daryl
> webdt.org <http://webdt.org>
> ------------------------------------------------------------------------
>
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Please run the calibration utility under "strace -f" and capture the 
output and post it to the list and maybe we can suggest what might be 
causing it.  If that isn't helpful then you'll need to run it in a debugger.

For example: # DISPLAY=:0; sh -c "strace -f /path/to/command 
1>>/tmp/strace.out 2>>/tmp/strace.out" 1>>/tmp/strace.out 2>>/tmp/strace.out

I know all those redirects and running strace inside of sh might seem 
excessive but if you really want to capture stdout and stderr of 
everything, I've found sometimes that's necessary.

HTH
Jim

-- 
Jim Ockers, P.Eng. (ockers at ockers.net)
Contact info: http://www.ockers.net/msi.html


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