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Date: Tue, 1 Nov 2005 18:33:21 +0600
From: Max Khon <fjoe@samodelkin.net>
To: Marc Olzheim <marcolz@stack.nl>
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Cc: stable@freebsd.org
Subject: Re: HEADS UP!  6.0-RELEASE coming
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Hi!

On Tue, Nov 01, 2005 at 12:29:00PM +0100, Marc Olzheim wrote:

> > Linking against -lthr (or even -lc_r!) instead of -lpthread solves gdb
> > "The program no longer exists." problem for me on RELENG_6.
> 
> Well, yes, but that's not the same. While running on M:N KSE, all sorts
> of locking needs to be correct, which with non M:N threading you can get
> away with some (intentional or not) sloppiness. So debugging a fully
> threaded program with a non M:N threadlib is not always useful.

I do not think that maintaining M:N thread lib is feasible, given the lack
of resources. Solaris has already moved from M:N to 1:1. Linux (NPTL) is 1:1
as well.

/fjoe