Re: gForth and unix/pthread.fs

From	Bernd Paysan <bernd.paysan@gmx.de>
Newsgroups	comp.lang.forth
Subject	Re: gForth and unix/pthread.fs
Date	2013-09-20 19:14 +0200
Organization	1&1 Internet AG
Message-ID	<l1hvqe$1ti$1@online.de> (permalink)
References	(2 earlier) <l1g17c$m9g$1@online.de> <24d1514e-0155-4b43-a88d-bb274c855887@googlegroups.com> <l1hlir$kfk$1@online.de> <d2aaa163-6953-44b1-a862-60e5b04194b8@googlegroups.com> <l1hvcu$15u$1@online.de>

Show all headers | View raw

Bernd Paysan wrote:

> My impression is that glibc's memory management is not really thread-safe,
> and that this causes severe problems.  I've enabled malloc checks to get a
> chance to print meaningful error messages in Forth, but that seems to
> rather increase the number of potential problems...

I've now disabled the use of mcheck(), and this seems to cure the problem. 
Please try.  I've added mcheck() to make it possible to debug memory errors 
from within Forth (and getting a meaningful backtrace), but Ulrich Drepper 
defeats that idea...

Ulrich Drepper's comment on this is:

"mcheck does not work for multi-threaded code. It cannot possibly do. There 
is no way to fix this with the technology underlying mcheck."

m(

This is a typical Ulrich Drepper: implement something in a way that can't 
possibly work, and then claim it is impossible to fix...

-- 
Bernd Paysan
"If you want it done right, you have to do it yourself"
http://bernd-paysan.de/

Thread

gForth and unix/pthread.fs voidvolker@gmail.com - 2013-09-16 00:43 -0700
  Re: gForth and unix/pthread.fs anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2013-09-16 09:05 +0000
    Re: gForth and unix/pthread.fs voidvolker@gmail.com - 2013-09-16 05:43 -0700
  Re: gForth and unix/pthread.fs VoidVolker <voidvolker@gmail.com> - 2013-09-19 10:14 -0700
    Re: gForth and unix/pthread.fs Bernd Paysan <bernd.paysan@gmx.de> - 2013-09-20 01:26 +0200
      Re: gForth and unix/pthread.fs VoidVolker <voidvolker@gmail.com> - 2013-09-19 19:17 -0700
        Re: gForth and unix/pthread.fs Bernd Paysan <bernd.paysan@gmx.de> - 2013-09-20 16:20 +0200
          Re: gForth and unix/pthread.fs VoidVolker <voidvolker@gmail.com> - 2013-09-20 08:43 -0700
            Re: gForth and unix/pthread.fs Bernd Paysan <bernd.paysan@gmx.de> - 2013-09-20 19:07 +0200
              Re: gForth and unix/pthread.fs Bernd Paysan <bernd.paysan@gmx.de> - 2013-09-20 19:14 +0200
                Re: gForth and unix/pthread.fs Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-09-21 05:02 -0500
                Re: gForth and unix/pthread.fs Bernd Paysan <bernd.paysan@gmx.de> - 2013-09-21 15:55 +0200
                Re: gForth and unix/pthread.fs Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-09-21 11:32 -0500
                Re: gForth and unix/pthread.fs Bernd Paysan <bernd.paysan@gmx.de> - 2013-09-21 20:44 +0200
                Re: gForth and unix/pthread.fs Andrew Haley <andrew29@littlepinkcloud.invalid> - 2013-09-22 05:03 -0500
                Re: gForth and unix/pthread.fs Bernd Paysan <bernd.paysan@gmx.de> - 2013-09-22 21:18 +0200
                Re: gForth and unix/pthread.fs VoidVolker <voidvolker@gmail.com> - 2013-09-21 11:41 -0700
                Re: gForth and unix/pthread.fs Bernd Paysan <bernd.paysan@gmx.de> - 2013-09-21 21:18 +0200
                Re: gForth and unix/pthread.fs VoidVolker <voidvolker@gmail.com> - 2013-09-21 13:55 -0700
                Re: gForth and unix/pthread.fs Bernd Paysan <bernd.paysan@gmx.de> - 2013-09-21 23:40 +0200
              Re: gForth and unix/pthread.fs albert@spenarnc.xs4all.nl (Albert van der Horst) - 2013-09-21 12:59 +0000

csiph-web