hostapd hangs after reboot

[Kacper]

Hi,

I have installed hostapd for my atheros card. hostapd works but if I
reboot it hangs the system, sometimes giving me a kernel backtrace: (3
last lines)

handlers:
[<c1142b57>] (usb_hcd_irq+0x0/0x50)
Disabling IRQ #7

Is this some bug in the kernels mac80211 driver or a bug in hostapd?
This is very strange since this only happens on reboot, otherwise
hostapd works flawlessly. I'm using the latest stable kernel
(2.6.32.2).