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Re: segfault for git log --graph --no-walk --grep a

From
Junio C Hamano <gitster@pobox.com>
Date
Feb 9, 2013, 00:39 UTC
Message-ID
<7vfw16xqvj.fsf@alter.siamese.dyndns.org>
In-Reply-To
<20130209002710.GA5570@sigill.intra.peff.net>
Jeff King <peff@peff.net> writes:
Show 28 quoted lines
> On Fri, Feb 08, 2013 at 04:22:15PM -0800, Junio C Hamano wrote:
>
>> Junio C Hamano <gitster@pobox.com> writes:
>> 
>> > Thomas Haller <thom311@gmail.com> writes:
>> >
>> >> it happens in file revision.c:2306 because "commit->buffer" is zero:
>> >>
>> >>                 retval = grep_buffer(&opt->grep_filter,
>> >>                                      commit->buffer, strlen(commit->buffer));
>> >
>> > I think this has been fixed at be5c9fb9049e (logmsg_reencode: lazily
>> > load missing commit buffers, 2013-01-26); I haven't merged it to any
>> > of the maintenance releases, but the tip of 'master' should have it
>> > already.
>> 
>> Ah, no, this shares the same roots as the breakage the said commit
>> fixed, and the solution should use the same idea, but not fixed.
>
> Yeah, I think this needs separate treatment. However, this is a perfect
> example of the "case-by-case" I mention in the final two paragraphs
> there.
>
> What's the right encoding to be grepping in? The original, what we will
> output in, or even something else? IOW, I wonder if this should be using
> logmsg_reencode in the first place (the obvious reason not to want to do
> so is speed, but logmsg_reencode is written to only have an impact in
> the case that we do indeed need to reencode).

Yeah, that actually is a good point. We should be using logmsg_reencode so that we look for strings in the user's encoding.

Previous: Jeff KingNext: Junio C Hamano
Message 5 of 26 in “segfault for git log --graph --no-walk --grep a”
  1. Thomas HallerFeb 8, 2013
  2. Junio C HamanoFeb 9, 2013
  3. Junio C HamanoFeb 9, 2013
  4. Jeff KingFeb 9, 2013
  5. Junio C HamanoFeb 9, 2013
  6. Junio C HamanoFeb 9, 2013
  7. Jeff KingFeb 9, 2013
  8. Jeff KingFeb 9, 2013
  9. Jeff KingFeb 11, 2013
  10. Junio C HamanoFeb 11, 2013
  11. Junio C HamanoFeb 11, 2013
  12. Jeff KingFeb 11, 2013
  13. Junio C HamanoFeb 11, 2013
  14. log: re-encode commit messages before greppingJeff King, Feb 11, 2013
  15. Junio C HamanoFeb 11, 2013
  16. Jeff KingFeb 11, 2013
  17. t4210-log-i18n: spell encoding name "UTF-8" correctlyJohannes Sixt, Feb 25, 2013
  18. Jeff KingFeb 25, 2013
  19. Junio C HamanoFeb 25, 2013
  20. Jeff KingFeb 25, 2013
  21. Johannes SixtFeb 26, 2013
  22. Torsten BögershausenFeb 25, 2013
  23. Torsten BögershausenFeb 25, 2013
  24. Jeff KingFeb 25, 2013
  25. Junio C HamanoFeb 9, 2013
  26. Jeff KingFeb 9, 2013

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