Bruce Cran wrote:
Just curious - is there a reason why the generic kernel is still being
built with debug symbols? I thought that was only used during the
pre-release phase.
WITNESS and INVARIANTS are enabled before the pre-release phase (i.e
before -BETA)
- as far as I know debug symbols are always generated by default, and
are dumped into /boot/kernel
as separate files. They don't hurt performance (unlike witness and
invariants) and are useful in a
few situations, one of which is if you ever get a panic.
Just so. If there are no debug symbols present then users who manage to
cause a panic cannot obtain the backtrace that is required to analyse
the bug report. Before we made debugging symbols installed by default
we had to toss out a lot of otherwise valuable bug reports because
sufficient information could not be obtained after the fact.
Kris
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