Re: dosemu and ubuntu 14

Perhaps they backported this proc switch too. Perhaps it's worth checking if 
/proc/sys/abi/ldt16
exists?

From looking at the following for 3.12 perhaps they are going to cripple all 
the stable kernels for dosemu on 64 bit

http://www.spinics.net/lists/stable/msg48927.html

On Tuesday 10 June 2014 16:43:50 Stas Sergeev wrote:
> 10.06.2014 16:24, Tom пишет:
> > Excuse for my english
> > 
> > With the first installation of Ubuntu 14.04, dosemu work fine (foxpro
> > under
> > dosemu work fine!)
> > Linux  3.13.0-27-generic #50-Ubuntu
> > 
> > But now, 10 june 2014, after I've update the system
> > Linux  3.13.0-29-generic #53-Ubuntu SMP Wed Jun 4 21:00:20 UTC
> > 2014 x86_64 x86_64 x86_64 GNU/Linux
> > 
> > foxpro under dosemu don't work with this error:
> > "
> > Phar Lap err 35: The 386 chip is currently executing
> > in virtual 8086 mode under the control of another program.  You must turn
> > off this other program in order to use 386|DOS-Extender to run in
> > protected mode
> > "
> > 
> > What's the problem?
> 
> 3.14 linux kernel has dropped the DPMI support for x86_64.
> Yours is 3.13.0-29 - my guess is that it had backported
> that behaviour from 3.14.
> Your previous 3.13.0-27 was likely i686 (32bit), where the
> DPMI support is still possible. Or it didn't have the aforementioned
> backport.
> 
> So, to run foxpro, you either need old kernel or 32bit system.
> Kernel developers seem to no longer consider dosemu users
> as their target audience.
> 3.15 kernel will probably have a work-around to that problem
> because wine was also affected (wine users are regarded much
> better, it seems :)
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