Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!lll-lcc!lll-winken!uunet!munnari!otc!metro!physiol!shocking
From: shocking@physiol.su.oz (Stephen Hocking)
Newsgroups: comp.unix.wizards
Subject: Re: C bug causes double fault (actually double panic)
Summary: microport is strange
Message-ID: <573@physiol.su.oz>
Date: 29 Mar 89 07:31:51 GMT
References: <244@tree.UUCP> <9884@smoke.BRL.MIL> <2044@viper.Lynx.MN.Org>
Organization: Physiology Dept., Univ. of Sydney, NSW, Australia
Lines: 35

In article <2044@viper.Lynx.MN.Org>, dave@viper.Lynx.MN.Org (David Messer) writes:
< In article <9884@smoke.BRL.MIL> gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>) writes:
<  >In article <244@tree.UUCP> zarquon@tree.UUCP (Erin Filbert) writes:
< 
<    { Mention that this causes the system to crash deleted by Doug Gwyn }
< 
<  >>main()
<  >>{
<  >>	float x;
<  >>	printf("x = %d", x);
<  >>}
<  >
<  >You'll undoubtedly get a flood of responses correctly pointing out
<  >that conversion of a double (promoted float) argument according to
<  >an int format is incorrect.  Use %g or some such format specifier.
< 
< And you will probably get a flood of responses correctly pointing out
< that what you say is irrelevent.  The original message mentioned that
< he "crashed the entire system" by running this program (calling it
< a "double fault" rather than "double panic"; which may have misled you).
< It doesn't matter that the C program has a bug, it still shouldn't
< crash the operating system.

	Ah, the joys of running under Uport 2.4. It is listed as a bug in
the release notes, but does not seem to trouble my machine (NEC APC4 8MHz,
80287-8) at this joint, but it does kill my home one (6MHz, 80287-3). 

	AAAAAAAAAGGGGGHHHHHH!!!!!

	Stephen
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	Stephen Hocking 	ACSnet shocking@physiol.su.oz
				UUCP ...!uunet!munnari!physiol.su.oz!shocking