Date: Thu, 30 Jan 1997 23:38:31 -0800 (PST) From: Simon Shapiro <Shimon@i-Connect.Net> To: cracauer@wavehh.hanse.de Cc: freebsd-hackers@freebsd.org, rminnich@Sarnoff.COM, (Martin Cracauer) <cracauer@wavehh.hanse.de> Subject: Re: Using rfork() / threads Message-ID: <XFMail.970131133213.Shimon@i-Connect.Net> In-Reply-To: <9701301753.AA23376@wavehh.hanse.de>
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Hi Martin Cracauer; On 30-Jan-97 you wrote: > rminnich@Sarnoff.COM (Ron G. Minnich) wrote: > > [rfork] > > >VM space handling is a little different. If you request VM space sharing, > >you don't exactly get Vm address space sharing: what you get is instead > >shared data areas where in normal fork they are copied. More details on > >request. The effect is what you want, though: shared data areas. > > Could you explain a bit more. What exactly is the difference between > VM space sharing and shared data areas from the process' and the > kernel perspective? Yes please, in perspective of the Linux clone(2) and the new libc 2.0 threads, etc. Thanx, Simon
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