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Date:      Thu, 05 Apr 2001 15:18:29 -0700 (PDT)
From:      John Baldwin <jhb@FreeBSD.org>
To:        Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
Cc:        current@FreeBSD.org
Subject:   RE: selwakeup()
Message-ID:  <XFMail.010405151829.jhb@FreeBSD.org>
In-Reply-To: <200104052200.SAA71985@khavrinen.lcs.mit.edu>

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On 05-Apr-01 Garrett Wollman wrote:
> <<On Thu, 05 Apr 2001 14:41:29 -0700 (PDT), John Baldwin <jhb@FreeBSD.ORG>
> said:
> 
>> As a safety check we should probably zero the pid right before zfree()'ing a
>> proc in wait() however, so that a stale pointer to a free'd process doesn't
>> have a valid pid if we do this.
> 
> Should not be necessary.  Here is the logic:

Ah, forgot about the p_stat check.

-- 

John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/
PGP Key: http://www.baldwin.cx/~john/pgpkey.asc
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/

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