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bug#9990: valgrind warning in add_row_entry


From: Dan Nicolaescu
Subject: bug#9990: valgrind warning in add_row_entry
Date: Tue, 15 Nov 2011 11:58:50 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.3 (gnu/linux)

Eli Zaretskii <address@hidden> writes:

>> From: Dan Nicolaescu <address@hidden>
>> Cc: address@hidden
>> Date: Fri, 11 Nov 2011 15:20:19 -0500
>> 
>> I haven't seen the one in row_equal_p anymore (but that one was not easy
>> to reproduce), the ones in update_window still show up.
>
> I added a function that verifies the hash value of glyph rows before
> it is used in row_equal_p, and also in adjust_glyph_matrix, where the
> offending reallocation takes place.  I cannot trigger the xasserts
> that use this function when I use "C-h H".  Can you?

No, I cannot.

> If the hash values are always correct where they are used, I guess
> that excludes the possibility that we use an uninitialized value,
> right?

I even added an  xassert (verify_row_hash (row)) in add_row_entry, and
it does not trigger.  Strange...





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