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Date:      Tue, 03 Sep 2002 09:01:07 -0700
From:      Peter Wemm <peter@wemm.org>
To:        Alexander Kabaev <ak03@gte.com>
Cc:        ticso@cicely.de, ticso@cicely5.cicely.de, des@FreeBSD.ORG, current@FreeBSD.ORG
Subject:   Re: alpha tinderbox failure - kernel is broken.
Message-ID:  <20020903160107.A43962A893@canning.wemm.org>
In-Reply-To: <20020903105801.140b59a9.ak03@gte.com> 

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Alexander Kabaev wrote:
> On Tue, 3 Sep 2002 16:56:52 +0200
> Bernd Walter <ticso@cicely5.cicely.de> wrote:
> > 
> > Do you think this is the same reason?
> > 
>  
> Yes.

Folks, it is a *kernel* problem:

peter@ashburton[6:38pm]~-111> cc -v
Using built-in specs.
Configured with: FreeBSD/alpha system compiler
Thread model: posix
gcc version 3.1 [FreeBSD] 20020509 (prerelease)
peter@ashburton[6:38pm]~-112> c++ -static -o foo foo.c
peter@ashburton[6:39pm]~-113> ./foo
Abort(core dumped)
peter@ashburton[6:39pm]~-114> uname -a
FreeBSD ashburton.netplex.com.au 5.0-CURRENT FreeBSD 5.0-CURRENT #15: Sat Aug 31 16:02:39 PDT 2002     pwroot@ashburton.netplex.com.au:/home/src/sys/alpha/compile/ASHBURTON  alpha

gcc-3.2.1 is not at fault.  If it isn't kernel, it is library related.
But Matt Dillon did commit a couple of changes in this area very recently.
I think we should be looking around here:

dillon      2002/06/25 17:29:28 PDT

  Modified files:
    sys/sys              resource.h 
    sys/vm               vm_mmap.c vm_unix.c 
  Log:
  Part I of RLIMIT_VMEM implementation.  Implement core functionality for
  a new resource limit that covers a process's entire VM space, including
  mmap()'d space.
  
  (Part II will be additional code to check RLIMIT_VMEM during exec() but it
  needs more fleshing out).
  
  PR:             kern/18209
  Submitted by:   Andrey Alekseyev <uitm@zenon.net>, Dmitry Kim <jason@nichego.net>
  MFC after:      7 days
  
  Revision  Changes    Path
  1.18      +3 -1      src/sys/sys/resource.h
  1.149     +7 -0      src/sys/vm/vm_mmap.c
  1.40      +5 -0      src/sys/vm/vm_unix.c

dillon      2002/08/30 11:09:46 PDT

  Modified files:
    sys/kern             imgact_elf.c 
    sys/compat/svr4      svr4_misc.c svr4_resource.c 
  Log:
  Implement data, text, and vmem limit checking in the elf loader and svr4
  compat code.  Clean up accounting for multiple segments.  Part 1/2.
  
  Submitted by:   Andrey Alekseyev <uitm@zenon.net> (with some modifications)
  MFC after:      3 days
  
  Revision  Changes    Path
  1.50      +2 -3      src/sys/compat/svr4/svr4_misc.c
  1.11      +1 -1      src/sys/compat/svr4/svr4_resource.c
  1.121     +33 -10    src/sys/kern/imgact_elf.c

Probably the later one, the timing is about right.

Cheers,
-Peter
--
Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com
"All of this is for nothing if we don't go to the stars" - JMS/B5


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