From: jmk@plan9.bell-labs.com
To: 9fans@cse.psu.edu
Subject: Re: [9fans] after exiting from rc...
Date: Mon, 24 Jul 2000 22:33:03 -0400 [thread overview]
Message-ID: <200007250233.WAA14385@cse.psu.edu> (raw)
From okamoto@granite.cias.osakafu-u.ac.jp:
After typed ^t^tr at terminals, I got no reboot but the following
messages, and the terminal itself is waiting something:
cpu1: exiting
cpu0: exiting
apshutdown: active = 0x00
This is different behaviour from release 2.
What does this mean?
Kenji
When an MP kernel shuts down it prints a message as each CPU is
disabled (a legacy from when they didn't always turn off properly...).
When enough time has passed for them all to have shut down, the
system should reset after printing the mask of still active CPUs
(in this case they all shut down). 'apshutdown' means 'Application
Processor shutdown'.
Why the system didn't then reboot I don't know. The shutdown code
could certainly be better, it tries to do a warm-reset which sometimes
fails due to activity from busmastering controllers for example.
There is commented-out code in mpshutdown() (in pc/mp.c) to do a
cold boot but the whole shutdown thing needs updated.
--jim
next reply other threads:[~2000-07-25 2:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-07-25 2:33 jmk [this message]
-- strict thread matches above, loose matches on Subject: below --
2000-07-25 4:21 okamoto
2000-07-25 2:06 okamoto
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