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Date:      Wed, 04 Sep 2019 20:39:47 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 239894] security.bsd.stack_guard_page default causes Java to crash
Message-ID:  <bug-239894-227-7MS7vI1JU0@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-239894-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-239894-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D239894

--- Comment #20 from Konstantin Belousov <kib@FreeBSD.org> ---
After r351773, you can add the following fragment at the beginning of the j=
vm
initialization.  It is safe to ignore errors from procctl(2), which means t=
hat
the kernel is old and stack overflow detection would be still broken.

        int arg =3D PROC_STACKGAP_DISABLE | PROC_STACKGAP_ENABLE_EXEC;
        procctl(P_PID, getpid(), PROC_STACKGAP_CTL, &arg);

--=20
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