hostapd 0.7.2 segmentation fault

[Alan]

Hello,

I get a segmentation fault every time I try to run hostapd version
0.7.2.  Version 0.6.10 works fine.

My hardware is: Atheros AR5008
Linux is 2.6.34 and I'm using madwifi from subversion, release 4129.
I built hostapd using the same source of madwifi as I'm using for the
kernel module.
ath_pci.ko parameters are: countrycode=840 autocreate=ap
I don't change anything via sysctl or iwpriv.
ath0 is in a bridge with other 3 network interfaces.

This is my /etc/hostapd.conf file:
--------------------
ctrl_interface=/var/run/hostapd
#driver=nl80211
driver=madwifi
bridge=br0
interface=ath0
ssid=r1
hw_mode=g
ieee80211n=1
ht_capab=[HT40-][SHORT-GI-40][DSSS_CCK-40][AMPDU]
# no sirve: ht_capab=[HT40-][HT40+][SHORT-GI-40][DSSS_CCK-40]
channel=11

auth_algs=3
wpa=3
wpa_passphrase=chavez sucks
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
rsn_pairwise=CCMP
--------------------

This is a gdb backtrace:

(gdb) run -B -P /var/run/hostapd.pid /etc/hostapd.conf
Starting program: /usr/sbin/hostapd -B -P /var/run/hostapd.pid /etc/hostapd.conf
Configuration file: /etc/hostapd.conf
Using interface ath0 with hwaddr 00:23:6c:be:e3:eb and ssid 'r1'

Program received signal SIGSEGV, Segmentation fault.
0x0809a840 in hostapd_eid_ht_capabilities (hapd=0x80b2db8,
eid=0x80b3abe "-\032N\020") at ../src/ap/ieee802_11_ht.c:42
42              cap->a_mpdu_params = hapd->iface->current_mode->a_mpdu_params;
(gdb) bt
#0  0x0809a840 in hostapd_eid_ht_capabilities (hapd=0x80b2db8,
eid=0x80b3abe "-\032N\020") at ../src/ap/ieee802_11_ht.c:42
#1  0x08094d4c in ieee802_11_set_beacon (hapd=0x80b2db8) at
../src/ap/beacon.c:418
#2  0x080530f9 in hostapd_setup_bss (hapd=0x80b2db8, first=1) at
../src/ap/hostapd.c:611
#3  0x08053535 in hostapd_setup_interface_complete (iface=0x80b23e0,
err=0) at ../src/ap/hostapd.c:739
#4  0x08053321 in setup_interface (iface=0x80b23e0) at ../src/ap/hostapd.c:685
#5  0x08053606 in hostapd_setup_interface (iface=0x80b23e0) at
../src/ap/hostapd.c:776
#6  0x0804d280 in hostapd_interface_init (interfaces=0xbffff720,
config_fname=0xbffff976 "/etc/hostapd.conf", debug=0) at main.c:313
#7  0x0804d666 in main (argc=5, argv=0xbffff814) at main.c:541