I just upgraded bluez to 4.68-1 and bluetooth daemon doesn`t start anymore.
Downgrading to bluez 4.67-1 solves issue.

Here is the backtrace :

/etc/rc.d/bluetooth restart
:: Stopping bluetooth subsystem: pand dund rfcomm hidd bluetoothd [DONE]
:: Starting bluetooth subsystem: bluetoothd*** glibc detected *** /usr/sbin/bluetoothd: double free or corruption (!prev): 0xb92d6080 *** [BUSY]
======= Backtrace: =========
/lib/libc.so.6(+0x6c7b1)[0xb74b97b1]
/lib/libc.so.6(+0x6d52b)[0xb74ba52b]
/lib/libc.so.6(cfree+0x6d)[0xb74be1cd]
/usr/lib/libglib-2.0.so.0(g_free+0x36)[0xb7631d16]
/usr/lib/libglib-2.0.so.0(g_option_group_free+0x45)[0xb7635cc5]
/usr/lib/libglib-2.0.so.0(g_option_context_free+0x53)[0xb7637053]
/usr/sbin/bluetoothd(+0x35b88)[0xb7740b88]
/lib/libc.so.6(__libc_start_main+0xe6)[0xb7463c76]
/usr/sbin/bluetoothd(+0x7b81)[0xb7712b81]
======= Memory map: ========
b72e4000-b72ff000 r-xp 00000000 08:01 137355 /usr/lib/libgcc_s.so.1
b72ff000-b7300000 rw-p 0001a000 08:01 137355 /usr/lib/libgcc_s.so.1
b7300000-b7321000 rw-p 00000000 00:00 0
b7321000-b7400000 ---p 00000000 00:00 0
b740b000-b740d000 rw-p 00000000 00:00 0
b740d000-b7414000 r-xp 00000000 08:01 522276 /lib/librt-2.12.so
b7414000-b7415000 r--p 00006000 08:01 522276 /lib/librt-2.12.so
b7415000-b7416000 rw-p 00007000 08:01 522276 /lib/librt-2.12.so
b7416000-b744c000 r-xp 00000000 08:01 540023 /lib/libpcre.so.0.0.1
b744c000-b744d000 rw-p 00035000 08:01 540023 /lib/libpcre.so.0.0.1
b744d000-b7592000 r-xp 00000000 08:01 534876 /lib/libc-2.12.so
b7592000-b7594000 r--p 00145000 08:01 534876 /lib/libc-2.12.so
b7594000-b7595000 rw-p 00147000 08:01 534876 /lib/libc-2.12.so
b7595000-b7598000 rw-p 00000000 00:00 0
b7598000-b759a000 r-xp 00000000 08:01 534890 /lib/libdl-2.12.so
b759a000-b759b000 r--p 00001000 08:01 534890 /lib/libdl-2.12.so
b759b000-b759c000 rw-p 00002000 08:01 534890 /lib/libdl-2.12.so
b759c000-b759d000 rw-p 00000000 00:00 0
b759d000-b75b2000 r-xp 00000000 08:01 522294 /lib/libpthread-2.12.so
b75b2000-b75b3000 ---p 00015000 08:01 522294 /lib/libpthread-2.12.so
b75b3000-b75b4000 r--p 00015000 08:01 522294 /lib/libpthread-2.12.so
b75b4000-b75b5000 rw-p 00016000 08:01 522294 /lib/libpthread-2.12.so
b75b5000-b75b7000 rw-p 00000000 00:00 0
b75b7000-b75ee000 r-xp 00000000 08:01 152020 /usr/lib/libdbus-1.so.3.4.0
b75ee000-b75ef000 r--p 00036000 08:01 152020 /usr/lib/libdbus-1.so.3.4.0
b75ef000-b75f0000 rw-p 00037000 08:01 152020 /usr/lib/libdbus-1.so.3.4.0
b75f0000-b76b7000 r-xp 00000000 08:01 139354 /usr/lib/libglib-2.0.so.0.2400.1
b76b7000-b76b8000 rw-p 000c6000 08:01 139354 /usr/lib/libglib-2.0.so.0.2400.1
b76b8000-b76cc000 r-xp 00000000 08:01 149511 /usr/lib/libbluetooth.so.3.9.0
b76cc000-b76ce000 rw-p 00013000 08:01 149511 /usr/lib/libbluetooth.so.3.9.0
b76eb000-b76ec000 rw-p 00000000 00:00 0
b76ec000-b76ed000 r-xp 00000000 00:00 0 [vdso]
b76ed000-b7709000 r-xp 00000000 08:01 534889 /lib/ld-2.12.so
b7709000-b770a000 r--p 0001b000 08:01 534889 /lib/ld-2.12.so
b770a000-b770b000 rw-p 0001c000 08:01 534889 /lib/ld-2.12.so
b770b000-b776f000 r-xp 00000000 08:01 149484 /usr/sbin/bluetoothd
b776f000-b7773000 rw-p 00063000 08:01 149484 /usr/sbin/bluetoothd
b92d6000-b92f7000 rw-p 00000000 00:00 0 [heap]
bfdcc000-bfded000 rw-p 00000000 00:00 0 [stack]
/etc/rc.d/bluetooth: line 35: 2232 Aborted $DAEMON_EXEC
[DONE]



Steps to reproduce: Upgrade bluez to latest 4.68 and try to restart bluetooth daemon.