suspend/resume Plan 9: 2.14.? works, 2.18.{1,45} fails

From: Axel Belinfante (Axel.Belinfante@cs.utwente.nl)
Date: Tue Oct 29 2002 - 13:09:14 EST


I'm running Plan 9 on a H3630 (with 32 Mb flash).
I'm using bootldr 2.18.01.
When I press the suspend button, I only have a window of a few
seconds to press again to resume. If I wait too long, I do get
an image on the screen, but it does not respond to any buttons
or the touch screen. Also, debugging output send over the
serial line is garbled.

Others experience that the same Plan 9 kernel suspends/resumes fine
when used with bootldr 2.14.something.

Now I'm curious (and, depending on the amount/kind of changes necessary,
I may or may not be able to (or want to) try fiddling with Plan 9 code
myself):
What change(s) between those bootldr versions might explain
what we see with Plan 9?
What should be fixed/changed (in what direction should we look)
in Plan 9 to work with bootldr 2.18.*?
Could such changes be made such that Plan 9 could support both
bootldr 2.14.something and 2.18.*?

Essentially, just curious,
Thanks in advance,
Axel.



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