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Date:      Thu, 22 Jun 2017 14:15:54 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 220184] clang 4.0.0 segfaults on buildworld
Message-ID:  <bug-220184-8-4HRHLC6X2D@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-220184-8@https.bugs.freebsd.org/bugzilla/>
References:  <bug-220184-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=220184

--- Comment #6 from Chris Collins <chrysalis@chrysalisnet.org> ---
An update

I have done several memtester runs all passes.
Removed cpu overclock
memtest86 passes
clang39 stable clang40 segfaults random (all new tests with ccache disabled)
I have swapped out memory sticks same result.
I have tried just using less ram so less slots populated and different slots.

I will test on a physical different system this weekend, possibly friday.

The system was originally FreeBSD 10, updated to FreeBSD 11.0, and then in the
past week to FreeBSD11-STABLE.

make.conf only has cputype?=nehalam for the cpu.

src.conf is following


LOADER_ZFS_SUPPORT=YES
WITHOUT_GAMES=yes
WITHOUT_SENDMAIL=yes
WITHOUT_I4B=yes
WITHOUT_FLOPPY=yes
WITHOUT_PROFILE=yes
WITHOUT_IPFILTER=yes
WITHOUT_X11=yes
WITHOUT_BLUETOOTH=yes
WITHOUT_CVS=yes
WITHOUT_IPX=yes
WITHOUT_PPP=yes
WITHOUT_WIRELESS=yes
WITHOUT_CTM=yes
WITHOUT_LPR=yes
WITH_EXTRA_TCP_STACKS=yes

# BELOW FOR USERLAND DTRACE
WITH_CTF=yes

System runs zfs mirror pool and has a ssd for a SLOG device.

Its not a production server so I am not bothered about downtime and also is ok
for the non redundant ZIL.

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