Re: [9fans] bitsy suspend/resume (was: ipaq dual pcmcia sleeve)

[presotto@plan9.bell-labs.com]

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Perhaps we're not getting memory to refresh itself when
we sleep and its contents is decaying?

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From: Axel Belinfante <Axel.Belinfante@cs.utwente.nl>
To: 9fans@cse.psu.edu
Subject: [9fans] bitsy suspend/resume (was: ipaq dual pcmcia sleeve)
Date: Tue, 22 Oct 2002 23:38:27 +0200
Message-ID: <200210222138.g9MLcRe12274@zamenhof.cs.utwente.nl>

For your information:
with my (admittedly hacked) kernel (based on the tar ball),
(and minor hacking of the dual sleeve code) I get:

without sleeve, light is slightly on before suspending;
suspending only once rio has started (booting completed):

 suspend followed by resume within ca. 2 seconds: OK
  (and I see the debugging code on the serial line console)

 suspend followed by resume later than ca. 2 seconds: not OK
  display comes back (most of the times) but light is not
  switched back on and screen/buttons don't respond, and
  debugging output on console is garbled (if it appears at all)


With the empty sleeve I get more or less the same effect
(i.e. quick suspend/resume within the ca 2 (3?) seconds works)

So, I have a short `window' in which I can resume; if I wait too long,
I can see the screen, but that seems to be all.

With the wavelan in the sleeve, suspend button seems to do almost
nothing -- except that ping no longer works, even though the
one led on the wavelan remains continously lit, and the other
still occasionally blinks. However, cat/net/ipselftab returns
nothing. Now running startip gives me:
'echo: write error: couldn't configure device'.

Axel.


> Ok. I'll build a fresh new kernel with the sources in the tar ball
> and let you know of any problem.
> In the mean time, you could try downloading the tar ball again, trying
> it, and letting me know the behaviour of suspend/resume on your bitsy.