Re: [bug] Segfault in git rev-list --first-parent --bisect

Junio C Hamano [off-list ref] writes:

"Avery Pennarun" [off-list ref] writes:

quoted

    $ git rev-list --first-parent --bisect 5109c91 ^d798a2bfe094
    Segmentation fault

Totally untested, usefulness fairly unknown.

The latter part of this statement needs a bit of explanation.  I do not
mean "--first-parent --bisect" is useless.  What I meant is that the
approach is only catering to --first-parent and not about non-standard way
to limit the list such as --since, --max-count, etc.

The current bisection algorithm only pays attention to the pathspec based
history simplification and bottom..top (aka "UNINTERESTING or not").  A
proper fix to handle these cases should work inside do_find_bisection(),
and count_interesting_parents() instead of hiding the parents away that
first_parent traversal did not touch, like the patch I sent out.