Another vlc 2.0.3 update (new ffmpeg! :)

[Alexander Kabaev]

On Mon, 13 Aug 2012 01:12:10 +0200
Juergen Lock <nox at jelal.kn-bremen.de> wrote:

> On Sun, Aug 12, 2012 at 09:21:15PM +0200, Rainer Hurling wrote:
> > On 12.08.2012 19:14 (UTC+2), Rainer Hurling wrote:
> > > On 12.08.2012 19:11 (UTC+2), Juergen Lock wrote:
<SKIP>
> >    GEN    ../modules/plugins.dat
> > gmake[2]: *** [../modules/plugins.dat] Segmentation fault: 11 
> > (Speicherauszug erstellt)
> > gmake[2]: Leaving directory
> > `/usr/ports/multimedia/vlc/work/vlc-2.0.3/bin' gmake[1]: ***
> > [all-recursive] Fehler 1 gmake[1]: Leaving directory
> > `/usr/ports/multimedia/vlc/work/vlc-2.0.3' gmake: *** [all] Fehler 2
> > *** [do-build] Error code 1
> > 
> > This only happens when option PulseAudio is enabled. (My sound
> > system is driven by PulseAudio.)
> > 
> Aah, thanx, I missed the bit about pulseaudio, now I can finally
> reproduce this.  I'll follow up on the other thread with the bt
> kib wanted.
> 

I was unable to reproduce this one at all. I _do_ have VLC 1.x
installed as well, though I have no pulseaudio enabled in it.
Maybe that is another missing piece of the puzzle?

> > And, as described in another thread on August, 3rd, it only
> > happens, when vlc version 1.x is already installed. So, deleting
> > old vlc before build this new version works for me.
> > 
> > Unfortunately if option PulseAudio is enabled, and only then, vlc
> > core dumps right after opening for example mp3 or mp4 files :(
> 
>  Hm if I did this right the bt for that is:
> 
> [...]
> Loaded symbols for /libexec/ld-elf.so.1
> #0  0x0000000816d33068 in vlc_pa_connect (obj=0x6f6e2f656d6f682f,
> mlp=0x6b636f4c206e65) at vlcpulse.c:137 137
> pa_threaded_mainloop_lock (mainloop); gdb) bt
> #0  0x0000000816d33068 in vlc_pa_connect (obj=0x6f6e2f656d6f682f,
> mlp=0x6b636f4c206e65) at vlcpulse.c:137 #1  0x0000000816d34682 in
> Open (obj=Variable "obj" is not available. ) at pulse.c:840
> #2  0x0000000800aba580 in vlc_module_load ()
> from /usr/local/lib/libvlccore.so.6 #3  0x0000000800aaab2c in
> aout_VolumeHardSet () from /usr/local/lib/libvlccore.so.6 #4
> 0x0000000800aa83c3 in aout_TimeReport ()
> from /usr/local/lib/libvlccore.so.6 #5  0x0000000800a75f70 in
> decoder_NewPicture () from /usr/local/lib/libvlccore.so.6 #6
> 0x00000008134c77e8 in _::vlc_entry_license ()
> from /usr/local/lib/vlc/plugins/codec/libfaad_plugin.so #7
> 0x0000000800a76d83 in input_DecoderCreate ()
> from /usr/local/lib/libvlccore.so.6 #8  0x0000000800a7810d in
> input_DecoderCreate () from /usr/local/lib/libvlccore.so.6 #9
> 0x0000000800a785db in input_DecoderCreate ()
> from /usr/local/lib/libvlccore.so.6 #10 0x000000080169c58d in
> pthread_create () from /lib/libthr.so.3 #11 0x0000000000000000 in ??
> () Cannot access memory at address 0x7ffffedf4000 (gdb) l
> vlcpulse.c:130 125             { 126                 pa_proplist_setf
> (props, PA_PROP_APPLICATION_PROCESS_MACHINE_ID,
> 127                                   "%.32s", session); /* XXX: is
> this valid? */ 128                 pa_proplist_sets (props,
> PA_PROP_APPLICATION_PROCESS_SESSION_ID,
> 129                                   session); 130             }
> 131         } 132 133         /* Connect to PulseAudio daemon */
> 134         pa_context *ctx; (gdb) l
> 135         pa_mainloop_api *api;
> 136
> 137         pa_threaded_mainloop_lock (mainloop);
> 138         api = pa_threaded_mainloop_get_api (mainloop);
> 139         ctx = pa_context_new_with_proplist (api, ua, props);
> 140         free (ua);
> 141         if (props != NULL)
> 142             pa_proplist_free (props);
> 143         if (unlikely(ctx == NULL))
> 144             goto fail;
> (gdb) 
> 
>  I'll Cc the pulseaudio port maintainers (gnome@), maybe they have an
> idea?
> 

Please check the use of _SC_GETPW_R_SIZE_MAX in vlcpulse.c. This
constant is unsupported, so the module tries to allocate a stack buffer
with negative size, smashing the stack dead.

So far, I see absolutely no evidence of any wrongdoing on the rtld
side of things.
-- 
Alexander Kabaev
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 188 bytes
Desc: not available
Url : http://lists.freebsd.org/pipermail/freebsd-ports/attachments/20120813/216b04c0/signature.pgp