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Date:      Tue, 09 Feb 2021 05:27:35 +0000
From:      bugzilla-noreply@freebsd.org
To:        ports-bugs@FreeBSD.org
Subject:   [Bug 253335] emulators/qemu-user-static php segfault building devel/pear for armv7
Message-ID:  <bug-253335-7788-li5e44h5PI@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-253335-7788@https.bugs.freebsd.org/bugzilla/>
References:  <bug-253335-7788@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D253335

Mark Johnston <markj@FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |imp@FreeBSD.org

--- Comment #10 from Mark Johnston <markj@FreeBSD.org> ---
The problem appears to be with this commit:
https://github.com/qemu-bsd-user/qemu-bsd-user/commit/63d5d4f649f44f8e3d910=
5dec40a354d92a19550

That check is indeed needed.  qemu relies on delivery of SIGSEGV to detect
self-modifying code so that it can update its translation cache accordingly=
.=20
This will manifest as a page fault, so ksi_trapno is T_PAGEFLT =3D=3D 0xc o=
n amd64.

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