Compiling PM3 Modula-3, worked under B20.0, now hangs "rm", "as", others in infinite loop on B20.1

John Polstra
Wed Dec 29 13:30:00 GMT 1999

In the mailing list archives I found a message from March 11, 1999,
in which "Parzival Herzog" <> wrote:

> I had used B17 - B19 with no problems for months, Then before
> I installed PM3 Modula-3, I updated to B20.0. PM3 Modula-3
> ( ) installed and ran successfully, then
> I updated to B20.1. PM3 Modula-3 and Cygwin appeared to work
> fine. Then I tried to compile a large Modula-3 package, and
> after compiling part-way through the system, my computer hung
> in an infinite loop, steadily allocating about 50-60K of memory
> per second, with 100% CPU utilization, and no significant disk
> activity. At first I thought this was a Modula-3 problem, but
> gradually started to suspect it was a timing problem in the Cygwin
> library. I noticed that the hang occurred after approximately the
> same amount of elapsed time compiling, and not on the same source
> file, and with exactly the same behaviour while several different
> programs were active, i.e. M3cgc1 (the Modula 3 compiler), as (the
> GNU assembler - called by the compiler), and even once in "rm" (the
> Cygwin rm program, called by make.)

I was seeing these exact symptoms.  Finally today I installed
the December 15, 1999 Cygwin snapshot (I actually used
DroolView-B20.1-19991218.tar.gz) and it appears to have solved the
problem completely.

I'm posting this to get the solution into the mailing list archives
where it can be found by others.

  John Polstra                                     
  John D. Polstra & Co., Inc.                        Seattle, Washington USA
  "Disappointment is a good sign of basic intelligence."  -- Chögyam Trungpa

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