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Subject: Re: [patch] Fix linux-ia64 on SIGILL for deleted breakpoint
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From: Tristan Gingold <gingold@adacore.com>
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Date: Mon, 19 Jul 2010 09:04:00 -0000
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To: Jan Kratochvil <jan.kratochvil@redhat.com>
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On Jul 19, 2010, at 10:58 AM, Jan Kratochvil wrote:

> Hi,
>=20
> in some cases ia64 can generate SIGILL instead of SIGTRAP.  Guessing it is
> a CPU bug instead of Linux kernel bug (but I may be wrong).
> 	https://bugzilla.redhat.com/show_bug.cgi?id=3D615538
> 	http://sources.redhat.com/cgi-bin/cvsweb.cgi/~checkout~/tests/ptrace-tes=
ts/tests/ia64-sigill.c?cvsroot=3Dsystemtap

This is not a bug but a feature: the immediate of break.b is ignored by the=
 processor.