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From: Jan Beich <jbeich@FreeBSD.org>
To: freebsd-ports@freebsd.org
Subject: Re: make.conf for a poudriere jail and CPUTYPE
References: <20190928135343.GE49516@bastion.zyxst.net>
 <r240-cxo8-wny@FreeBSD.org> <20190928145055.GF49516@bastion.zyxst.net>
 <y2y8-bcuc-wny@FreeBSD.org> <20190928220050.GG49516@bastion.zyxst.net>
 <20190928224615.GH49516@bastion.zyxst.net> <pnjk-7z7a-wny@FreeBSD.org>
 <20190929010925.GJ49516@bastion.zyxst.net> <v9tb-6f2i-wny@FreeBSD.org>
 <20190929022242.GK49516@bastion.zyxst.net>
 <20190929095732.GA38643@bastion.zyxst.net>
Date: Sun, 29 Sep 2019 15:46:34 +0200
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 (tech-lists@zyxst.net's message of "Sun, 29 Sep 2019 10:57:32 +0100")
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tech-lists <tech-lists@zyxst.net> writes:

> On Sun, Sep 29, 2019 at 03:22:42AM +0100, tech-lists wrote:
>
>>On Sun, Sep 29, 2019 at 03:56:05AM +0200, Jan Beich wrote:
>>
>>>Is that for host or after upgrade? Your build logs had the following:
>>>
>>>> _CCVERSION_921dbbb2=FreeBSD clang version 6.0.1
>>> (tags/RELEASE_601/final 335540) (based on LLVM 6.0.1) Target:
>>> x86_64-unknown-freebsd12.0 Thread model: posix InstalledDir:
>>> /usr/bin
>>>
>>>FreeBSD 11.2/12.0 have Clang 6, FreeBSD 11.3/12.1 have Clang 8.
>>
>>That's the host (recent 12-stable). The build log was the poudriere jail which is 12.0-p10. I
>>made a 13-current poudriere jail a short while ago and the same error happens.
>>
>>Now building a 12,0-p10 jail on desktop hardware
>
> Well, that was interesting! build of python36 and lzo2 succeeds on desktop host !!!!!
>
> this machine succeeds:
>
> Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz / 32Gb RAM
> FreeBSD 12.1-PRERELEASE r352514
> poudriere jail is 12.0-RELEASE-p10 1200086 r351263 amd64
>
> this one fails:
>
> Intel(R) Xeon(R) CPU E5-2690 0 @ 2.90GHz x2 / 192Gb RAM
> FreeBSD 12.1-PRERELEASE #0 r352507
> poudriere jail is 13.0-CURRENT 1300048 r352860     amd64
> also failed on 12.0-RELEASE-p10 1200086 r351263 amd64
>
> what do you think?

A CPU bug in a SIMD instruction? Did you apply microcode update?
Maybe older Intel CPUs have trouble with code optimized for AMD CPUs.
For one, try CPUTYPE?=native on the failing CPU to check if Clang
knows about Intel quirks.