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From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Wed, 14 Mar 2018 13:44:00 -0000
Message-ID: <CAMe9rOoaQOOtWh_VGUNBfjWoeERxAauWPg5WZ7FhW-FF086a8w@mail.gmail.com>
Subject: Re: SIGBUS failure for misc/tst-bz21269 on i386
To: Florian Weimer <fweimer@redhat.com>
Cc: GNU C Library <libc-alpha@sourceware.org>
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On Wed, Mar 14, 2018 at 6:34 AM, Florian Weimer <fweimer@redhat.com> wrote:
> Has anyone else seen this failure?
>
> I saw it with this kernel:
>
> Linux buildvm-09.phx2.fedoraproject.org 4.15.3-300.fc27.x86_64 #1 SMP Tue
> Feb 13 17:02:01 UTC 2018 i686 i686 i386 GNU/Linux
>
> The CPU has AVX2, but not AVX-512.  I couldn't reproduce it on another AVX2
> machine.  The failure happened in the Fedora build environment, so I don't
> have a coredump.
>

I didn't see it on AVX2 machines under 4.15.9-300.fc27.x86_64.

BTW, I always disable abrtd so that I can get a core dump.  I also have

[hjl@gnu-tools-1 etc]$ cat /etc/sysctl.d/coredump.conf
kernel.core_pattern=core
[hjl@gnu-tools-1 etc]$

-- 
H.J.