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Postings from December 2011
I have run into a snag in getting these changes ready. There is a bug
manifesting from an area of Perl I know essentially nothing about, and
rather than trying to learn this new area, I thought I'd first see if
someone else who already knows about it has the tuits and interest to look.
The problem is that I get a stack underflow. This problem surfaced
when I ran valgrind and found illegal writes. Running with -Dtls shows
the underflow. I haven't looked at the code, but it seems to me that
there ought to be an assert() here to expose this kind of problem,
unless it is too run-time expensive.
I couldn't find any documentation on how to read the outputs of the
various -D options. Perhaps these are self-evident to someone who
understands the code well enough to be interested in looking at them.
I have compared the execution traces of doing the autoload and doing it
explicitly and found very few differences; none that my limited
understanding would cause me to do an a-ha on.
I've pushed my branch to
* [new branch] charnames -> khw/charnames
This one-liner executed in that branch exhibits the problem:
./perl -Dtlsv -Ilib -E '"\N{NUMBER SIGN}"'
Any assistance is greatly appreciated.
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