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

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On Fri, Feb 08, 2013 at 04:22:15PM -0800, Junio C Hamano wrote:

> Junio C Hamano <gitster@xxxxxxxxx> writes:
> 
> > Thomas Haller <thom311@xxxxxxxxx> 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).

-Peff
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