Re: 2.9.11?

[Daniel J Sebald]

John W. Eaton wrote:

> Does it help to move the fclear before the call to sleep?

No, that didn't seem to change anything.  It probably doesn't matter if the 
fclear() is before or after the sleep().

I think I've narrowed this down.  I added a few lines of code to print out 
whenever an error == EAGAIN occurs.  After about the seventh "make check", I got 
a string of numbers up to 99 at which point the test assumed failure and moved 
on.  (I.e., if it doesn't happen in ten seconds, then fail.)

I looked at the associated processes and found:

 5313 pts/2    00:03:08 octave
 5508 pts/2    00:00:00 sort <defunct>

So, for some reason that sort process is suspending.  Not sure why such a simple 
routine would fail.  Some confusion in the piping and in/out streams?  Maybe the 
coordination of fclose(in) and fgets(out) is off.  I.e., the input stream needs 
to finish closing before the output stream is ready, if not maybe sort says "hey"?


> | 
> |    test_quad.m ............................................ ABNORMAL RETURN FROM 
> | DQAGP
>
> I changed the lower limit of integration for this test so the warning
> should be avoided now.

OK, I'll check once compilation is done.

Dan

--- /usr/local/src/octave-junk/octave/src/syscalls.cc   2007-04-18 
22:32:12.000000000 -0500
+++ ./syscalls.cc       2007-04-18 23:40:26.000000000 -0500
@@ -363,6 +363,7 @@
 %!  done = false;
 %!  str = {};
 %!  idx = 0;
+%!  errs = 0;
 %!  do
 %!     if (!isunix())
 %!       errno (0);
@@ -372,12 +373,16 @@
 %!       idx++;
 %!       str{idx} = s;
 %!     elseif (errno () == EAGAIN)
-%!       fclear (out);
 %!       sleep (0.1);
+%!       fclear (out);
+%!       errs++
+%!       if (errs == 100)
+%!         done = true;
+%!       endif
 %!     else
 %!       done = true;
 %!     endif
-%!   until (done)
+%!  until (done == true)
 %!  fclose (out);
 %!  if (isunix())
 %!    assert(str,{"these\n","strings\n","some\n","are\n"})