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Date:      Tue, 16 Jan 1996 11:34:50 -0800 (PST)
From:      Archie Cobbs <archie@tribe.com>
To:        freebsd-questions@freebsd.org
Subject:   Minimum memory for diskless boot
Message-ID:  <199601161934.LAA19886@bubba.tribe.com>

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Hi,

I've noticed a strange problem when booting diskless with limited memory.
For example, even with 5 MB of memory, occasionally some random process
will segfault and die. But especially with 4 megs. However, when booting
diskful 4 megs is enough. I assume you need X amount of memory for NFS,
but then what is X?

Also, a "ps" listing shows bogus time values and every process is
listed in parentheses (meaning? the man page doesn't say). For example:

  USER     PID %CPU %MEM   VSZ  RSS  TT  STAT STARTED       TIME COMMAND
  root     150  0.0  1.1   460   28  v2  RV   -          0:00.00  (csh)
  root       1  0.0  6.0   364  184  ??  Is   -          0:00.00  (init)
  root       2  0.0  0.6     0   12  ??  DL   -          0:00.00  (pagedaemon)
  root       3  0.0  0.6     0   12  ??  DL   -          0:00.00  (vmdaemon)
  root       4  0.0  0.6     0   12  ??  DL   -          0:00.00  (update)
  root      57  0.0 10.3   184  324  ??  Ss   -          0:00.00  (syslogd)
  daemon    67  0.0  7.6   176  236  ??  Is   -          0:00.00  (portmap)
  root      76  0.0  1.1   224   28  ??  I    -          0:00.00  (nfsiod)
  root      77  0.0  1.1   224   28  ??  I    -          0:00.00  (nfsiod)
  root      78  0.0  1.1   224   28  ??  I    -          0:00.00  (nfsiod)
  root      79  0.0  1.1   224   28  ??  I    -          0:00.00  (nfsiod)
  root      84  0.0 10.0   220  312  ??  Is   -          0:00.00  (inetd)
  root      94  0.0 11.7   268  368  ??  Is   -          0:00.00  (cron)
  root      96  0.0  9.6   192  300  ??  Is   -          0:00.00  (lpd)
  root     137  0.0 13.5   156  424  v0  Is+  -          0:00.00  (getty)
  root     138  0.0 13.5   156  424  v1  Is+  -          0:00.00  (getty)
  root     139  0.3  9.0   460  280  v2  Ds   -          0:00.00  (csh)
  root     149  0.0  7.1   456  220  v2  R+   -          0:00.00  (ps)
  root       0  0.0  0.2     0    0  ??  DLs  -          0:00.00  (swapper)

Any ideas about what's going on?

Curiously,
-Archie

_______________________________________________________________________________
Archie L. Cobbs, archie@tribe.com  *  Tribe Computer Works http://www.tribe.com



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