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Date:      Tue, 28 May 1996 08:33:09 +0200 (MET DST)
From:      J Wunsch <j@uriah.heep.sax.de>
To:        freebsd-hackers@freebsd.org (FreeBSD hackers)
Cc:        gurney_j@resnet.uoregon.edu
Subject:   Re: signal 4?
Message-ID:  <199605280633.IAA15811@uriah.heep.sax.de>
In-Reply-To: <Pine.BSF.3.91.960527200218.976E-100000@nike.efn.org> from John-Mark Gurney at "May 27, 96 08:09:57 pm"

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As John-Mark Gurney wrote:

> what exactly is signal 4?

SIGILL -- illegal instruction

> often... if it is a normal command that hits a sig 4 it usally hangs the 
> machine after a few seconds...  could it be a memory timing problem?  or 
> possible something else?

It is caused by the CPU executing an undefined opcode, so yep, it
might be a memory (or a CPU) problem.

-- 
cheers, J"org

joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)



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