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Date:      Sat, 27 Apr 2013 20:50:15 -0600
From:      Warner Losh <imp@bsdimp.com>
To:        Oleksandr Tymoshenko <gonzo@bluezbox.com>
Cc:        arm@freebsd.org
Subject:   Re: clang/ARM regression
Message-ID:  <F67C03C0-3C31-4B1E-846D-9361A712735A@bsdimp.com>
In-Reply-To: <517C868B.4060002@bluezbox.com>
References:  <517C868B.4060002@bluezbox.com>

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Turning WITNESS off also fixes it :)

Sadly, the stack traceback stuff seems busted lately too...

Warner

On Apr 27, 2013, at 8:16 PM, Oleksandr Tymoshenko wrote:

> Hi,
>=20
> There seems to be some kind of regression in recently imported clang =
on ARM.
> Beaglebone kernel built using clang  with WITNESS enabled panics
> on boot. If I change optimization flags from -O to -O0 it works fine.
> I'm trying to isolate test case but it panics fairly early in boot =
process
> so it's not easy. If somebody tracks clang development and aware of
> known issues that might cause it - please share.
>=20
> So far I tried fix from this bug but it didn't help:
> http://llvm.org/bugs/show_bug.cgi?id=3D15581
>=20
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