From: Dmitry Antipov <dmantipov@yandex.ru>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 16140@debbugs.gnu.org
Subject: bug#16140: 24.3.50; GC tries to free invalid font objects
Date: Mon, 16 Dec 2013 19:26:59 +0400 [thread overview]
Message-ID: <52AF1BC3.8090100@yandex.ru> (raw)
In-Reply-To: <52AEB30C.7090306@yandex.ru>
On 12/16/2013 12:00 PM, Dmitry Antipov wrote:
> On 12/14/2013 01:51 PM, Eli Zaretskii wrote:
>
>> When I originally saw this, fnt->driver was NULL. I added protection
>> against that, but then it crashed with non-NULL but still invalid
>> pointer. Such pointers should never end up in font objects, so how
>> come they do?
>
> Hm...I've tried bloat-font quite a lot with my MinGW build, but didn't
> see anything similar. Anyway, r115541 has an extra check for valid
> font driver pointer in font objects; if you hit this eassert, please
> let me know.
BTW, this may be caused by heap corruption, which I found and described
in Bug#16165.
Dmitry
next prev parent reply other threads:[~2013-12-16 15:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-14 9:51 bug#16140: 24.3.50; GC tries to free invalid font objects Eli Zaretskii
2013-12-16 8:00 ` Dmitry Antipov
2013-12-16 15:26 ` Dmitry Antipov [this message]
2014-04-25 18:31 ` Johan Bockgård
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