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Re: [Qemu-devel] Anyone familiar with the slirp code?


From: Jim C. Brown
Subject: Re: [Qemu-devel] Anyone familiar with the slirp code?
Date: Sat, 23 Jul 2005 00:15:12 -0400
User-agent: Mutt/1.4i

On Sat, Jul 23, 2005 at 12:53:55AM +0200, Gwenole Beauchesne wrote:
> Le samedi, 23 jul 2005, ? 00:05 Europe/Paris, Jim C. Brown a ?crit :
> 
> >On Fri, Jul 22, 2005 at 08:45:16PM +0200, Gwenole Beauchesne wrote:
> >>AFAICS, slirp code in qemu cvs and other projects works on x86_64.
> >
> >Nope.
> My testing limited to 32-bit 
> Ubuntu Live as guest on 64-bit Mandriva Linux 2005 and downloading 
> files from FTP performed very well.

Well, I remember someone having issues with slirp and WinXP on an AMD64 host
a few months ago, but you're right that seems to be fixed now.

> 
> Then please provide a clear testcase.

Well, x86_64 on x86_64. But, rereading the emails, that doesn't cover this case,
which is x86 on x86_64.

> A more complete solution than used in current CVS can use 
> qemu_{malloc,realloc,*}() instead with special provisions to returning 
> memory with addresses that fit under 32-bit. qemu already does this but 
> only for (deprecated) qemu-fast at this time.
> 

Still not a very good substitute for fixing the slirp code to handle 64bit
values properly imho.

-- 
Infinite complexity begets infinite beauty.
Infinite precision begets infinite perfection.




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