Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.debian.user > #183151

Re: DOSEMU DPMI unhandled exception 0e (it's back!)

Show all headers | View raw

[Multipart message — attachments visible in raw view] - view raw

The trouble manifested when I tried using various components of an old release of Turbo C.  Everything, 16 and 32 bit, tickles this bug.

On July 4, 2017 7:52:36 AM PDT, bw <apisonco@gmail.com> wrote:
>>When I start DOSEMU and use any DOS program, I get "DPMI: Unhandled
>Exception 0e - Terminating Client" 
>
>That is really bad news, are you sure it's all programs, and not just
>programs that use DPMI ?
>If the problem is only DPMI enabled programs, you can probably solve it
>with some persistent effort.
>
>>and then I'm told that the emulator is unstable and should be
>rebooted. Running any program after that causes DOSEMU to crash.
>
>I've used dosemu for a long time, but not on stretch, so I can't test
>it right now.  It is tricky to setup, as most DOS environments always
>were.
>
>>From what I recall, some programs will require vm.mmap_min_addr set to
>0 in sysctl and
>you should do your own research before using this, it seems to be a
>security risk on networked machines, or was at one point.  
>Not sure of the current state of things re: mmap_min_addr 
>
>Some older DOS programs have a plain 16 bit ver and a 32 bit DPMI ver,
>and some have a switch to turn off use of DPMI.  Some also
>used an environment variable to limit or control the use of DPMI. 
>There's also a config option in dosemu.conf to set the base address.
># DPMI base address; default: auto
># If the default value fails, try 0x10000000
>
># $_dpmi_base = (auto)
>
>>Identical trouble was reported in https://bugs.debian.org/797378
>
>That bug showed pkzip as the culprit, not all dos programs?  
>
>If it's the same bug, maybe you should follow the links and file your
>bug against the kernel instead of dosemu?
>https://ugs.debian.org/cgi-bin/bugreport.cgi?bug=866965
>
>Good luck, and have fun.  Thanks for the heads up I will follow along
>in case I run into the same issues.
>bw

-- 
David Griffith
dave@661.org

Back to linux.debian.user | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

DOSEMU DPMI unhandled exception 0e (it's back!) David Griffith <dave@661.org> - 2017-07-04 04:20 +0200
  Re: DOSEMU DPMI unhandled exception 0e (it's back!) bw <apisonco@gmail.com> - 2017-07-04 17:10 +0200
    Re: DOSEMU DPMI unhandled exception 0e (it's back!) David Griffith <dave@661.org> - 2017-07-05 00:40 +0200
      Re: Re: DOSEMU DPMI unhandled exception 0e (it's back!) bw <apisonco@gmail.com> - 2017-07-05 01:20 +0200
        Re: Re: DOSEMU DPMI unhandled exception 0e (it's back!) David Griffith <dave@661.org> - 2017-07-05 01:50 +0200

csiph-web