From owner-freebsd-commit  Tue Aug  8 05:36:41 1995
Return-Path: commit-owner
Received: (from majordom@localhost)
          by freefall.cdrom.com (8.6.11/8.6.6) id FAA26690
          for commit-outgoing; Tue, 8 Aug 1995 05:36:41 -0700
Received: (from majordom@localhost)
          by freefall.cdrom.com (8.6.11/8.6.6) id FAA26605
          for cvs-sys-outgoing; Tue, 8 Aug 1995 05:35:17 -0700
Received: from time.cdrom.com (time.cdrom.com [192.216.222.226])
          by freefall.cdrom.com (8.6.11/8.6.6) with ESMTP id FAA26599
          ; Tue, 8 Aug 1995 05:35:08 -0700
Received: from localhost (localhost [127.0.0.1]) by time.cdrom.com (8.6.11/8.6.9) with SMTP id FAA19408; Tue, 8 Aug 1995 05:34:28 -0700
To: Bruce Evans <bde@zeta.org.au>
cc: CVS-commiters@freefall.cdrom.com, cvs-sys@freefall.cdrom.com,
        dyson@freefall.cdrom.com
Subject: Re: cvs commit: src/sys/i386/isa syscons.c 
In-reply-to: Your message of "Tue, 08 Aug 1995 21:22:21 +1000."
             <199508081122.VAA04961@godzilla.zeta.org.au> 
Date: Tue, 08 Aug 1995 05:34:28 -0700
Message-ID: <19405.807885268@time.cdrom.com>
From: "Jordan K. Hubbard" <jkh@time.cdrom.com>
Sender: commit-owner@FreeBSD.org
Precedence: bulk

> Actually it isn't really OK to simply substitute M_NOWAIT with M_WAITOK.
> If one of the malloc()s in scioctl() sleeps, then another process may
> run and use the half-allocated resources.  If one of the malloc()s in in
> scioctl() or scopen() sleeps, then another process may run and repeat the
> ioctl and (at best) allocate the resources twice.

Argh.  Perhaps I was too hasty.  If John decides to rearchitect this,
I'll pull it out of 2.1

					Jordan