Bugs item #713169, was opened at 2003-03-31 23:35
Message generated for change (Comment added) made by nnorwitz
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Category: Build
Group: Python 2.4
Status: Open
Resolution: None
Priority: 5
Submitted By: Richard Townsend (rptownsend)
Assigned to: Neal Norwitz (nnorwitz)
Summary: test_pty fails on HP-UX and AIX when run after test_openpty
Initial Comment:
Here is the output from test_pty.py:
capulet:dist/src > ./python Lib/test/test_pty.py
Calling master_open()
Got master_fd '3', slave_name '/dev/pts/0'
Calling slave_open('/dev/pts/0')
Got slave_fd '4'
Traceback (most recent call last):
File "Lib/test/test_pty.py", line 58, in ?
test_basic_pty()
File "Lib/test/test_pty.py", line 29, in
test_basic_pty
if not os.isatty(slave_fd):
File "Lib/test/test_pty.py", line 50, in handle_sig
raise TestFailed, "isatty hung"
test.test_support.TestFailed: isatty hung
This was running Python 2.3a2 (downloaded from
CVS on Sunday 30th March) built on HP-UX11i.
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>Comment By: Neal Norwitz (nnorwitz)
Date: 2006-02-20 11:05
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Can you test with the patch in bug report:
https://sourceforge.net/tracker/index.php?func=detail&aid=1433877&group_id=5470&atid=105470
? I wonder if that fixes the problem. Though I'm not sure
the same code is executed or not.
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Comment By: Michael Hoffman (hoffmanm)
Date: 2005-01-25 08:29
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This happens with Python 2.4 on Tru64Unix V5.1 when
compiling using gcc-3.4.3, but not if you use the vendor cc.
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Comment By: Richard Townsend (rptownsend)
Date: 2004-07-12 01:30
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This still happens with Python-2.4.0a1 on HP-UX11i
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Comment By: Mark D. Roth (mdr0)
Date: 2004-03-10 09:22
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I'm running into this problem under both AIX 4.3.3 and 5.1.
Is this going to cause a problem if I put python into
produciton, or is it "safe" to ignore it?
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Comment By: Neal Norwitz (nnorwitz)
Date: 2003-04-01 08:31
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Actually, there is a 'fix' which is really a work-around the
problem. You can disable os.openpty() in pty.master_open.
I added a raise OSError at line 50 (before os.openpty()).
This allows the test to pass. I think Martin and I agreed
that globally disabling wasn't the best solution. That
would probably be in some patch.
Also, just in case it isn't clear--if you run test_pty
BEFORE test_openpty, both tests pass.
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Comment By: Neal Norwitz (nnorwitz)
Date: 2003-04-01 08:02
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I fixed the test hanging, but not the actual bug. The bug
appears when running test_pty after test_openpty. There's
some interaction, but I don't know what it is. The problem
happens on AIX also. I searched through some man pages, but
nothing leapt out at me. I think I tried googling for the
answer to no avail. Any insight or ideas would be helpful.
This may have started when adding /dev/ptmx (ptc for AIX)
support.
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Comment By: Michael Hudson (mwh)
Date: 2003-04-01 02:26
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Neal? I thought you thought this was fixed?
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