firefox dumps core when trying to play audio through alsa

[Volodymyr Kostyrko]

Hi all.

(process:79710): GLib-CRITICAL **: void g_slice_set_config(GSliceConfig, 
gint64): assertion `sys_page_size == 0' failed
Assertion failed: (wrote >= 0 && wrote == got), function 
alsa_refill_stream, file 
/tmp/ports/usr/ports/www/firefox/work/mozilla-release/media/libcubeb/src/cubeb_alsa.c, 
line 319.

(gdb) bt full
#0  0x0000000800ff2a4c in thr_kill () from /lib/libc.so.7
No symbol table info available.
#1  0x000000080239b775 in XRE_InstallX11ErrorHandler () from 
/usr/local/lib/firefox/libxul.so
No symbol table info available.
#2  0x0000000800d7c696 in swapcontext () from /lib/libthr.so.3
No symbol table info available.
#3  0x0000000800d7c23f in sigaction () from /lib/libthr.so.3
No symbol table info available.
#4  0x00007ffffffff173 in ?? ()
No symbol table info available.
#5  0x0000000800d7c110 in sigaction () from /lib/libthr.so.3
No symbol table info available.
#6  0x0000000801071421 in __assert () from /lib/libc.so.7
No symbol table info available.
#7  0x000000080386f729 in soundtouch::TDStretchMMX::~TDStretchMMX () 
from /usr/local/lib/firefox/libxul.so
No symbol table info available.
#8  0x0000000800d7820b in pthread_create () from /lib/libthr.so.3
No symbol table info available.
#9  0x0000000000000000 in ?? ()
No symbol table info available.

-- 
Sphinx of black quartz, judge my vow.