NetBSD Problem Report #50894

From www@NetBSD.org  Fri Mar  4 18:06:36 2016
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Date: Fri,  4 Mar 2016 18:06:35 +0000 (UTC)
From: jovan.trujillo2@gmail.com
Reply-To: jovan.trujillo2@gmail.com
To: gnats-bugs@NetBSD.org
Subject: emacs 24.5 core dumps on startup on NetBSD 7.0 i386 on VMWare 
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>Number:         50894
>Category:       pkg
>Synopsis:       emacs 24.5 core dumps on startup on NetBSD 7.0 i386 on VMWare
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Mar 04 18:10:00 +0000 2016
>Last-Modified:  Fri Mar 04 21:30:00 +0000 2016
>Originator:     Jovan Trujillo
>Release:        7.0
>Organization:
Arizona State University
>Environment:
NetBSD tima.localdomain 7.0 NetBSD 7.0 (GENERIC.201509250726Z) i386
>Description:
I installed emacs-24.5 through pkgin from main NetBSD ftp server. I try to run it from both the terminal and xterm and it immediately core dumps with a memory fault. I'm running NetBSD on VMWare Player 6.0.7 on Windows 7 with 1 GB of virtual RAM. 
>How-To-Repeat:
Take a Windows 7 PC. Install VMWare Player 6.0.7. Install NetBSD 7.0 i386 into virtual machine. Setup pkgin to download from ftp.netbsd.org. Install emacs-24.5. Run "emacs" and see Memory Fault/Core Dump happen. 
>Fix:

>Audit-Trail:
From: Joerg Sonnenberger <joerg@britannica.bec.de>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: pkg/50894: emacs 24.5 core dumps on startup on NetBSD 7.0 i386
 on VMWare
Date: Fri, 4 Mar 2016 19:51:13 +0100

 On Fri, Mar 04, 2016 at 06:10:00PM +0000, jovan.trujillo2@gmail.com wrote:
 > I installed emacs-24.5 through pkgin from main NetBSD ftp server. I
 > try to run it from both the terminal and xterm and it immediately core
 > dumps with a memory fault. I'm running NetBSD on VMWare Player 6.0.7
 > on Windows 7 with 1 GB of virtual RAM. 

 This is a known bug of Emacs when build on either a 64bit host or Xen.
 Since the top 1GB of the address space is no longer reserved, things get
 loaded at those positions, but after the coredumping / unexec procedure,
 a startup on "real" non-Xen i386 no longer works since those areas are
 no reserved. No fix is currently known.

 Joerg

From: Jovan Trujillo <jovan.trujillo2@gmail.com>
To: gnats-bugs@netbsd.org
Cc: pkg-manager@netbsd.org, gnats-admin@netbsd.org, pkgsrc-bugs@netbsd.org
Subject: Re: pkg/50894: emacs 24.5 core dumps on startup on NetBSD 7.0 i386 on VMWare
Date: Fri, 4 Mar 2016 14:27:45 -0700

 I fixed it by building emacs through pkg_src on my local VMWare instance.

 On Fri, Mar 4, 2016 at 11:55 AM, Joerg Sonnenberger
 <joerg@britannica.bec.de> wrote:
 > The following reply was made to PR pkg/50894; it has been noted by GNATS.
 >
 > From: Joerg Sonnenberger <joerg@britannica.bec.de>
 > To: gnats-bugs@NetBSD.org
 > Cc:
 > Subject: Re: pkg/50894: emacs 24.5 core dumps on startup on NetBSD 7.0 i386
 >  on VMWare
 > Date: Fri, 4 Mar 2016 19:51:13 +0100
 >
 >  On Fri, Mar 04, 2016 at 06:10:00PM +0000, jovan.trujillo2@gmail.com wrote:
 >  > I installed emacs-24.5 through pkgin from main NetBSD ftp server. I
 >  > try to run it from both the terminal and xterm and it immediately core
 >  > dumps with a memory fault. I'm running NetBSD on VMWare Player 6.0.7
 >  > on Windows 7 with 1 GB of virtual RAM.
 >
 >  This is a known bug of Emacs when build on either a 64bit host or Xen.
 >  Since the top 1GB of the address space is no longer reserved, things get
 >  loaded at those positions, but after the coredumping / unexec procedure,
 >  a startup on "real" non-Xen i386 no longer works since those areas are
 >  no reserved. No fix is currently known.
 >
 >  Joerg
 >

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