[Bug 508516] Re: wakeup from sleep fails on toshiba nb305

jim_charlton charltn at gmail.com
Mon Jun 21 23:06:04 UTC 2010


Yes.  I was correct.  I did (as root):
apt-get remove bootchart
reboot

The reboot took 2 minutes 42 seconds.

reboot

The reboot took 7 minutes 34 seconds (longer, I presume, because
ureadahead has installed a pack file after profiling on the first boot).

apt-get install bootchart
(check to make sure there are not pack files in /var/lib/ureadahead (there were not)
reboot

The reboot took 32 seconds

reboot

The reboot took 23 seconds. (shorter as ureadahead has profiled on the
first boot and the pack file now actually works to shorten boot time).

So installing bootchart is the secret!  It must subtly change the timing
of the execution of upstart jobs such that some jobs complete in time
for the next job to start.  Without it.... something is starting too
soon and causing the long delay.

So what happens in "resume"?  Does it also use upstart?  I need to do
some reading.  Maybe the solution to the resume delay is something as
simple as changing the order/timing of the restarting of system tasks.

In the meantime...  the slow boot can be (apparently) be solved by
installing bootchart.

-- 
wakeup from sleep fails on toshiba nb305
https://bugs.launchpad.net/bugs/508516
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