Roger that. I will try.<br><br>I do have a serial adapter cable semi-permanently attached to one of the XO's - i use it to debrick any RTC machines I get off ebay., so with training, I might be able to perform those steps too later, once I get to you on the first steps.<br>
<br>KG<br><br><br><div class="gmail_quote">On Sun, Jun 19, 2011 at 8:48 AM, Daniel Drake <span dir="ltr"><<a href="mailto:dsd@laptop.org">dsd@laptop.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="im">On 19 June 2011 13:14, Kevin Gordon <<a href="mailto:kgordon420@gmail.com">kgordon420@gmail.com</a>> wrote:<br>
> Since it seems to never work on any build, if you like, I can concentrate on<br>
> just os23 on multiple XO 1.0 machines on multiple USB ports and see if there<br>
> are any differences in where it halts, even if I've previously plugged it in<br>
> after boot or not. I've had it get to the 3rd dot before hanging on a<br>
> couple of occasions, and I think that's the time I see the 'Starting Cronds'<br>
> on the console . So, if I have a more directed rather than shotgun plan,<br>
> perhaps I can be more helpful.<br>
<br>
</div>That's interesting, thanks for the extensive testing.<br>
On the ticket I suggested some next steps for debugging.<br>
<div class="im"><a href="http://dev.laptop.org/ticket/10568" target="_blank">http://dev.laptop.org/ticket/10568</a><br>
<br>
</div>The 3rd one you can do without a serial console. "See if you can<br>
reproduce it as follows: move the sisusbvga.ko file to somewhere where<br>
modprobe can't find it, boot the system and stop X. Then run a loop at<br>
the shell of insmod;rmmod, see if that makes it possible to reproduce<br>
the hang quickly"<br>
<br>
More specific instructions for this:<br>
<br>
Boot without USBVGA connector attached. Go to a root terminal and move<br>
sisusbvga.ko to /root:<br>
# mv /lib/modules/*/kernel/drivers/usb/misc/sisusbvga/sisusbvga.ko /root<br>
<br>
Power off the system, connect USBVGA, boot. It should boot<br>
successfully, but without any VGA output. Press ctrl+alt+f2 to get to<br>
a root terminal, and stop X/sugar with:<br>
# stop prefdm<br>
<br>
Now load the sisusbvga driver manually and see if it hangs:<br>
# insmod /root/sisusbvga.ko<br>
<br>
Wait a few seconds, see if the system is hung or if you can still type<br>
on the console.<br>
<br>
If you can still type, unload the module:<br>
# rmmod sisusbvga<br>
<br>
and now try loading/unloading a few more times with a few seconds<br>
pause between each step.<br>
# insmod /root/sisusbvga.ko<br>
...<br>
# rmmod sisusbvga<br>
...<br>
# insmod /root/sisusbvga.ko<br>
...<br>
# rmmod sisusbvga<br>
...<br>
etc<br>
<br>
The idea is to find out whether the system hang is caused by the<br>
loading of sisusbvga. It might not hang first time, may require a few<br>
attempts, hence the repeated loading.<br>
<br>
Thanks,<br>
<font color="#888888">Daniel<br>
</font></blockquote></div><br>