[Python-bugs-list] [ python-Bugs-780576 ] test_ioctl fails

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Bugs item #780576, was opened at 2003-07-30 18:04
Message generated for change (Comment added) made by jbrouwers
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=105470&aid=780576&group_id=5470

Category: Build
Group: Python 2.3
Status: Open
Resolution: None
Priority: 5
Submitted By: Jean M. Brouwers (jbrouwers)
Assigned to: Nobody/Anonymous (nobody)
Summary: test_ioctl fails

Initial Comment:
Test case test_ioctl fails when building Python 2.3 on
RedHat 8.0, but just one one and not another RedHat 8.0
machine.  The initial suspicion was that this failure
may be related to this bug report:

http://sourceforge.net/tracker/?group_id=5470&atid=105470&func=detail&aid=777867

but that was reported on Debian unstable.  It could
still be a glibc bug that Python is tickling but the
glibc libraries are the same one both machines (at
least there is no difference in the version numbers
from rpm).

  rpm -qa | grep -i glibc
  glibc-devel-2.3.2-4.80.6
  glibc-kernheaders-2.4-7.20
  glibc-common-2.3.2-4.80.6
  glibc-2.3.2-4.80.6


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>Comment By: Jean M. Brouwers (jbrouwers)
Date: 2003-07-31 11:54

Message:
Logged In: YES 
user_id=832557

Here is more background info.

I built Python 2.3 (final) several times and ran "make test"
as part of that.  The ioctl_test failed two out of three
times on one machine and did not fail on another machine. 
Different machines but the same RH 8 versions.

Also, I built several Python beta releases (2.3b1, 2.3b2 and
2.3c2 if I recall correctly) all just once and the test
failed there too.

I haven't checked further details and don't know whether
this is classified as Heisenbug-like behavior or not.  But
if the test fails, the error message is "test_ioctl failed
-- errors occurred in test.test_ioctl.IoctlTests".



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Comment By: Michael Hudson (mwh)
Date: 2003-07-31 05:27

Message:
Logged In: YES 
user_id=6656

Does your failure exhibit the same heisenbug-like qualities
as #777867? (e.g. can you reproduce it running tests via
regrtest?  does it fail in isolation?)

Does it fail in the same way, i.e. returning different
numbers from the ioctl() call than the getpgrp() call?

It doesn't fail on my sorta RH 7.2 box, but I'm thinking of
upgrading soon anyway...

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