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Date: Fri, 13 Jan 2006 21:12:18 +0200
From: Giorgos Keramidas <keramida@FreeBSD.org>
To: Jason Evans <jasone@FreeBSD.org>
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Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: Re: cvs commit: src/lib/libc/stdlib malloc.c
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On 2006-01-13 11:07, Jason Evans <jasone@FreeBSD.org> wrote:
>On Jan 12, 2006, at 5:29 PM, Giorgos Keramidas wrote:
>> Does this look like an off-by-one error to you too Jason?
>> Apparently, the
>> allocated size of s->data is s->size, which is 873 bytes, but then
>> Emacs tries
>> to access s->data[873].
>>
>> Does it look like I'm right in thinking that this is a bug in Emacs?
>
> This looks like a bug in emacs, as you say, but I don't know if it
> has any particular relation to the posix_memalign() changes.

I updated my FreeBSD tree to a version before posix_memalign() was
exported by libc:

$ more /home/build/pre-jasone-malloc
cvs -q up -APd -D '2006/01/12 07:28:20 UTC'

and Emacs can bootstrap correctly.

> If updating to either before or after the broken posix_memalign()
> revision, and need help figuring out the issue, please let me know.

I'll see if the Emacs folks at emacs-devel@gnu.org can help me track
down why the new posix_memalign() function caused the problems.

Thanks for the offer to help, I may need some as I track this down.