[Barrelfish-users] SIMD instructions should be disabled when building elver
kornilios.kourtis at inf.ethz.ch
Tue Apr 30 14:14:46 CEST 2013
On Mon, Apr 29, 2013 at 08:21:52PM +0000, Chothia Zaheer wrote:
> I wonder whether the same might happen in other cases (AVX) and whether
> it makes sense to instead pass something like '-march=i386'?
> (On a loosely-related note: I previously tried running a Clang-built version of
> Barrelfish but the early boot sequence would repeat in an infinite loop. That
> issue is now also fixed so thanks!)
> > From: Wang Nan [mailto:wangnan0 at huawei.com]
> > Sent: 29 April 2013 08:12
> > To: barrelfish-users at lists.inf.ethz.ch
> > Subject: [Barrelfish-users] SIMD instructions should be disabled when building
> > elver
> > Hi,
> > I propose a small patch which disables SIMD instructions when building elver
> > for x86_64:
> > I discoverd that some gcc generages SIMD instructions for elver, which causes
> > problems, because when elver processing the kernel, SIMD feature is disabled.
Thanks for the patch! -- I've applied it on my tree so it will be
included in our next release.
Zaheer: that's good news!
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