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Date: Tue, 23 Sep 2014 08:00:31 -0700
From: Nathan Whitehorn <nwhitehorn@freebsd.org>
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To: Harald Schmalzbauer <h.schmalzbauer@omnilan.de>,
 "O. Hartmann" <ohartman@zedat.fu-berlin.de>
Subject: Re: CURRENT: EFI boot failure
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Cc: FreeBSD Current <freebsd-current@freebsd.org>,
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Could you try adding -mno-avx2 to /sys/boot/amd64/Makefile.inc line 9?
-Nathan

On 09/23/14 07:28, Harald Schmalzbauer wrote:
>   Bezüglich O. Hartmann's Nachricht vom 19.09.2014 15:22 (localtime):
>> …
>> The problem I reported about in the first place is triggered by a faulty loader.efi that
>> arises, when optimisation level is -O3. -O2 works fine.
> I can confirm that this problem also shows up when using
> 'CPUTYPE?=core-avx2'
> Setting CPUTYPE to core-avx-i doesnt ehibit the problem.
>
> I could narrow down the cause to libefi.a (sys/boot/efi).
> But I don't understand the things going on there, so no clue how to fix
> besides maybe
>
> --- sys/boot/efi/Makefile.inc.orig 2014-09-23 16:22:46.000000000 +0200
> +++ sys/boot/efi/Makefile.inc 2014-09-23 16:25:16.000000000 +0200
> @@ -2,6 +2,10 @@
>
> BINDIR?= /boot
>
> +.ifdef CPUTYPE
> +.undef CPUTYPE
> +.endif
> +
> .if ${MACHINE_CPUARCH} == "i386"
> CFLAGS+= -march=i386
> .endif
>
> -Harry
>