[Tcl-bugs] [ tcl-Bugs-3075027 ] 8.5 head testsuite failures on windows

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Bugs item #3075027, was opened at 2010-09-24 11:08
Message generated for change (Comment added) made by nijtmans
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>Category: 36. Pathname Management
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Andreas Kupries (andreas_kupries)
>Assigned to: Andreas Kupries (andreas_kupries)
Summary: 8.5 head testsuite failures on windows

Initial Comment:
Six tests currently fail for 8.5 head on windows

==== async-4.3 async interrupting loop-less bytecode sequence FAILED
==== async-4.3 FAILED
==== filesystem-1.3 link normalisation FAILED
==== filesystem-1.3 FAILED
==== filesystem-1.4 link normalisation FAILED
==== filesystem-1.4 FAILED
==== stack-1.1 maxNestingDepth reached on infinite recursion FAILED
==== stack-1.1 FAILED
==== stack-3.1 enough room for regexp near recursion limit FAILED
==== stack-3.1 FAILED
==== tcltest-2.0 tcltest (verbose default - 'b') FAILED
==== tcltest-2.0 FAILED

The stack tests I am not sure about, I might have stack checking disabled (They were crashes).

The full test log is attached.

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>Comment By: Jan Nijtmans (nijtmans)
Date: 2012-06-13 02:15

Message:
Did a "fossil bisect" in order to try to find out which commit
introduces this test failure. The result is:
       http://core.tcl.tk/tcl/info/40f723e2c0
Changelog entry:
2008-07-21  Andreas Kupries <and...@ac...>

	* generic/tclBasic.c: Extended the existing TIP #280 system (info
	* generic/tclCmdAH.c: frame), added the ability to track the
	* generic/tclCompCmds.c: absolute location of literal procedure
	* generic/tclCompile.c: arguments, and making this information
	* generic/tclCompile.h: available to uplevel, eval, and
	* generic/tclInterp.c: siblings. This allows proper tracking of
	* generic/tclInt.h: absolute location through custom (Tcl-coded)
	* generic/tclNamesp.c: control structures based on uplevel, etc.
	* generic/tclProc.c:

However, I don't think this commit itself is to
blame. It only changed the caching mechanism
for literals, which apparently indirectly affects the
normalization of file paths. It's really complicated!!!!!

Also I found bug #1972879, which handles the
caching of normalized paths. See pat Thoyts'
remark in this issue regarding
the failing test-cases filesystem-1.[34].
These tests are already failing for
almost 4 years!
My current suspicion is that bug  #1972879 is
not fixed yet for some Windows paths, and that
Andreas' commit only triggered it. The
bug was there already before, but it only
didn't manifest itself until Andreas' commit.

The prove that this really is a caching issue:
If I manually create a link to a directory
with a file in it, the file normalization is OK,
but running it from the test suite it is not.
So the result highly depends from the
environment.

Andreas, does this give some hint to you?

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Comment By: Thomas Perschak (tombert)
Date: 2011-12-10 00:51

Message:
I don't believe that theses tests, if failed, would cause tcl to crash?

thx


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Comment By: Jan Nijtmans (nijtmans)
Date: 2011-10-29 00:25

Message:
Looks like all failures, except filesystem-1.3
and filesystem-1.4 are fixed already

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