Date: Tue, 23 Dec 2014 22:13:40 +0100 From: Dimitry Andric <dim@FreeBSD.org> To: Harry Schmalzbauer <freebsd@omnilan.de> Cc: FreeBSD Stable Mailing List <freebsd-stable@FreeBSD.org> Subject: Re: CPUTYPEs includig avx are suspicious with clang in stable/10 Message-ID: <EA051E3B-E829-4BDD-8928-5B81EA28E59D@FreeBSD.org> In-Reply-To: <549912F4.9040501@omnilan.de> References: <54944D08.8000202@omnilan.de> <18B24CB4-0F39-4A7B-982C-9FAA5CE36749@FreeBSD.org> <549912F4.9040501@omnilan.de>
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[-- Attachment #1 --] On 23 Dec 2014, at 08:00, Harry Schmalzbauer <freebsd@omnilan.de> wrote: > > Bezüglich Dimitry Andric's Nachricht vom 22.12.2014 21:49 (localtime): >> On 19 Dec 2014, at 17:06, Harry Schmalzbauer <freebsd@omnilan.de> wrote: >>> >>> I'm seeing sporadic problems (core dumps) with binaries compiled with >>> CPUTYPE=core-i-avx. >>> They run fine on IvyBridge, but fail on Haswells. >>> Stripping avx from MACHINE_CPU (by defining CPUTYPE=corei7 instead of >>> core-i-avx) solved all crashes on the haswell system. >> >> Can you provide a concrete test case? E.g. binaries with both >> optimizations, of which one exhibits the crash? > > At least this is something I can do at the momen. Please find them here > (i386 versions): > http://www.omnilan.de/downloads/pkg-static.core-i-avx > http://www.omnilan.de/downloads/pkg-static.core7 > > The former crashes on Haswell while running fine on IvyBridge, the > latter has been compiled with CPUTYPE=corei7 instead of core-i-avx and > doesn't show problems on any syste, And of course I can't find any Haswell machine right at this minute. If you are not able to produce a backtrace and register dump, please upload compressed core dumps from your Haswell system somewhere. (Take care that they are produced by exactly the same executable listed above.) -Dimitry [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.26 iEYEARECAAYFAlSZ2wkACgkQsF6jCi4glqPVbQCdEV55Yq/mC1sOv3gL0Vqwdwl/ QC0AnjF2K8Bxf6qc208DKyLVFPIRuwdy =xWVo -----END PGP SIGNATURE-----
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