Re: glibc 2.15 and libasound

[Mike Frysinger <vapier at gentoo dot org>]

On Sunday 25 March 2012 13:45:09 Allin Cottrell wrote:
> There's a problem that quite a few people have noted with
> recent glibc and libasound (specifically the use of libdl by
> the latter). I was hoping this might have gone away with glibc
> 2.15 but it's still there. Maybe it's not a glibc bug, though
> it looks rather like it. The symptom is that (e.g.) alsa's
> "aplay" utility reliably segfaults when called to play a wav
> file.
> 
> I have inserted debugging statements in libasound (version
> 1.0.25, dlmisc.c), to announce all its uses of the libdl
> functions, and run aplay under valgrind (where it doesn't
> actually segfault). I'm attaching the results. It looks as if
> there's something wrong with glibc's do_lookup_x(): it's
> reading from freed memory in response to dlsym() following a
> successful invocation of dlopen() by libasound.

please try some of the patches for known issues.  you can find some:
	http://sources.gentoo.org/gentoo/src/patchsets/glibc/2.15/

i think you want the 0050 one.
-mike

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