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From: Junio C Hamano <gitster@pobox.com>
To: "Avery Pennarun" <apenwarr@gmail.com>
Cc: "Git ML" <git@vger.kernel.org>
Subject: Re: [bug] Segfault in git rev-list --first-parent --bisect
Date: Fri, 22 Aug 2008 22:31:07 -0700	[thread overview]
Message-ID: <7vzln42t7o.fsf@gitster.siamese.dyndns.org> (raw)
In-Reply-To: <7v7ia848aa.fsf@gitster.siamese.dyndns.org> (Junio C. Hamano's message of "Fri, 22 Aug 2008 22:20:13 -0700")

Junio C Hamano <gitster@pobox.com> writes:

> "Avery Pennarun" <apenwarr@gmail.com> writes:
>
>>     $ 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.

      reply	other threads:[~2008-08-23  5:32 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-23  3:20 [bug] Segfault in git rev-list --first-parent --bisect Avery Pennarun
2008-08-23  4:51 ` Junio C Hamano
2008-08-23  5:20 ` Junio C Hamano
2008-08-23  5:31   ` Junio C Hamano [this message]

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