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Date:      Sun, 03 Dec 2000 18:14:19 +0800
From:      Erwan Arzur <erwan@netvalue.com>
To:        freebsd-stable@freebsd.org
Subject:   CPU heratically disappearing at each boot ?
Message-ID:  <3A2A1CFB.783676B5@netvalue.com>

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I've been for a long time witnessing this rather strange behaviour
without ever figuring out how it would happen. 

I'm using a DELL laptop (Latitude XP) with broken APM and a very recent
stable FreeBSD. Mergemaster is ran at each build/installworld and the
kernel is compiled after installworld (all made while in single user
mode).

From time to time, at reboot, top and various CPU-utilization tools
based on libkvm simply stop to work properly, while other figures about
the load average and so, can still be displayed appropriately. I would
say that i get this CPU disappearing thing 9 times out of ten. I can
reboot without doing anything on the system, and it will reappear until
the next reboot ...

I've been going through a lot of research without ever catching it ...
Rebuild libkvm ? nope. kvm_updatedb ? (seems out of date ? it's not in
the rc scripts anymore ...) nope.

I really feel dumb ... Did any of you go into that ? 

I could really live without it, but i don't like having tools that i
can't use without any real clue about why ...

Thanks in advance !

last pid:   486;  load averages:  2.03,  1.46,  0.72    up 0+00:07:01 
18:06:25
61 processes:  1 running, 60 sleeping
CPU states:  0.0% user,  0.0% nice,  0.0% system,  0.0% interrupt,  0.0%
idle
Mem: 41M Active, 41M Inact, 23M Wired, 72K Cache, 35M Buf, 144M Free
Swap: 256M Total, 256M Free

  PID USERNAME   PRI NICE  SIZE    RES STATE    TIME   WCPU    CPU
COMMAND
  435 erwan        2   0 22344K 18164K select   0:15  0.00%  0.00%
communicator
  385 root         2   0 22248K 21616K select   0:06  0.00%  0.00%
XF86_Mach64
  419 erwan        2   0  7536K  6868K select   0:01  0.00%  0.00%
xemacs-21.1.
  400 erwan        2   0  4200K  3728K select   0:01  0.00%  0.00%
wmaker
  175 root         2   0  2092K  1356K select   0:00  0.00%  0.00% sshd
  196 root         2   0   884K   500K select   0:00  0.00%  0.00%
moused
  415 erwan        2   0  2404K  1828K select   0:00  0.00%  0.00%
xscreensaver
  420 erwan       10   0  1568K  1044K nanslp   0:00  0.00%  0.00%
wmmixer
  422 erwan       10   0  1716K  1216K nanslp   0:00  0.00%  0.00%
wmitime
  423 erwan       10   0  1632K  1128K nanslp   0:00  0.00%  0.00%
wmnetselect
  421 erwan       10   0  1712K  1336K nanslp   0:00  0.00%  0.00%
wmpinboard
  462 erwan        2   0  1868K  1244K sbwait   0:00  0.00%  0.00% imapd

...
--
Erwan Arzur
NetValue ltd.


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