From owner-freebsd-hackers  Wed Oct 15 08:57:02 1997
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To: Mike Smith <mike@smith.net.au>
cc: hackers@FreeBSD.ORG
Subject: Re: Odd out-of-swap condition; ideas? 
In-reply-to: Your message of "Wed, 15 Oct 1997 21:32:03 +0930."
             <199710151202.VAA00264@word.smith.net.au> 
From: David Greenman <dg@root.com>
Reply-To: dg@root.com
Date: Wed, 15 Oct 1997 08:59:36 -0700
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>Tue Oct 14 21:18:24 GMT 1997
>Device      1K-blocks     Used    Avail Capacity  Type
>/dev/sd0s1b    131072   130212      796    99%    Interleaved
> PRI NI   VSZ  RSS WCHAN  STAT  TT       TIME COMMAND
>  -6  0 39236 5188 biowai D     ??   61:57.12 .../bin.linux/idl display_init
>   2  0  3708 2388 select Ss    ??    3:36.05 /usr/X11R6/bin/X -auth ...
>
>Note that just about everything else is gone, and still no swap left.  
>Then, eventually the display dies too, and immediately all is well 
>again:
>
>Device      1K-blocks     Used    Avail Capacity  Type
>/dev/sd0s1b    131072     9696   121312     7%    Interleaved
>PRI NI   VSZ  RSS WCHAN  STAT  TT       TIME COMMAND
> -6  0  4240  836 biowai D     ??    0:00.23 .../bin.linux/idl analysis_init
>  2  0  3708 2436 select Ss    ??    3:38.57 /usr/X11R6/bin/X -auth ...
> -6  0   944  464 biowai D     ??    0:00.02 exptd: experiment: ...
>
>(The analysis and experiment were resurrected by their startup scripts)
>
>The conclusion reached from this is that the display process has 
>somehow managed to own a lot of swap that wasn't attached to it.

   Are you sure that the display proc had no children (which may have gone
away when the system killed off the parent)?

-DG

David Greenman
Core-team/Principal Architect, The FreeBSD Project