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From: clemc@ccc.com (Clem Cole)
Subject: [TUHS] 211bsd: kernel panic after a 'here document' in tcsh
Date: Mon, 12 Jun 2017 11:26:31 -0400	[thread overview]
Message-ID: <CAC20D2OqWvckR0sfN_r0KRrbHNRn8CTQSkBwbWLW=B5ouTXkAg@mail.gmail.com> (raw)
In-Reply-To: <20170610142432.8CA3A18C0E4@mercury.lcs.mit.edu>

Probably says that that once that most people that ran UNIX purchased the
FP option and did not run the simulated FP and those that did clearly
didn't use tcsh ;-)

Fred Brook's bug's curves really are amazing but are so true.  Some really
major bugs just take years to be discovered because no one ever looked and
when you do.  It can be like this one -- 'wow!'

Clem

On Sat, Jun 10, 2017 at 10:24 AM, Noel Chiappa <jnc at mercury.lcs.mit.edu>
wrote:

>     > From: "Walter F.J. Mueller"
>
>     > the kernel panic after tcsh here documents is understood.
>
> Very nice detective work!
>
>     > The kernel panic is due to a coding error in mch_fpsim.s. ...  After
>     > fixing the "$SIGILL." ... and three similar cases
>
> I'm fairly amazed that apparently nobody has run across one of these 4
> before!
> (Or, at least, not bothered to report it.)
>
> I wonder how long that bug has been in the code?
>
>      Noel
>
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  reply	other threads:[~2017-06-12 15:26 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-10 14:24 Noel Chiappa
2017-06-12 15:26 ` Clem Cole [this message]
  -- strict thread matches above, loose matches on Subject: below --
2017-06-25 16:25 Walter F.J. Mueller
     [not found] <mailman.1.1497146402.26080.tuhs@minnie.tuhs.org>
2017-06-11 10:25 ` Johnny Billquist
2017-06-10 12:58 Walter F.J. Mueller
     [not found] <mailman.884.1496866451.3779.tuhs@minnie.tuhs.org>
2017-06-08 22:29 ` Johnny Billquist
2017-06-07 20:14 Walter F.J. Mueller
2017-06-08  7:54 ` Michael Kjörling
     [not found] <mailman.1.1496714401.14870.tuhs@minnie.tuhs.org>
2017-06-06 19:15 ` Johnny Billquist
2017-06-05 23:05 Noel Chiappa
2017-06-05 14:12 Walter F.J. Mueller
2017-06-05 16:16 ` Michael Kjörling
2017-06-05 16:33   ` Ron Natalie
2017-06-05 22:08     ` Jacob Ritorto
2017-06-06 11:43       ` Ron Natalie

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