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Date: Wed, 12 Nov 1997 20:33:50 -0800 (PST)
Organization: Atlas Telecom
From: Simon Shapiro <Shimon@i-connect.net>
To: Archie Cobbs <archie@whistle.com>
Subject: RE: unkillable process
Cc: freebsd-hackers@FreeBSD.ORG
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Hi Archie Cobbs;  On 12-Nov-97 you wrote: 
>  
>  Try the following experiment (on 2.2 and mabye 3.0):
>  
>  1. Create a named pipe
>  2. Start typing into it using cat
>  3. Hit control-C as many times as you want
>  
>  You'll see that the process will not die even with kill -9,
>  as it is stuck in uninterrupible disk sleep ("fifo").
>  
>  But as soon as you read from the other end of the pipe,
>  the process exits.
>  
>  Is there a missing PCATCH flag to tsleep() somewhere?
>  Is this appropriate behavior? (hint: rhetorical question)

>From what I remember, this is a typical (if ugly Unix behavior.

Simon