Help with driver

Не подскажет кто в чем дело?
worker_thread 2 раза вызывается, нормально?

Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: d0b387ed

Pid: 6, comm: events/0 Not tainted 2.6.35.11 #7

Call Trace:
[<c05bb972>][ 20] ? printk+0x2d/0x33
[<c05bb8cb>][ 20] panic+0x5a/0xd4
[<c014985e>][ 16] __stack_chk_fail+0x1e/0x30
[<d0b387ed>][ 108] ? acx_s_set_probe_request_template+0x16d/0x170 [acx]
[<d0b387ed>][ 108] acx_s_set_probe_request_template+0x16d/0x170 [acx]
[<d0b3b40f>][ 136] acx_s_update_card_settings+0x98f/0xd50 [acx]
[<c0137c86>][ 72] ? __dequeue_entity+0x26/0x50
[<c0101add>][ 72] ? __switch_to+0xcd/0x180
[<c012ba98>][ 72] ? default_spin_lock_flags+0x8/0x10
[<c05be1cf>][ 72] ? _raw_spin_lock_irqsave+0x2f/0x50
[<d0b3c30f>][ 72] acx_e_after_interrupt_task+0x25f/0x490 [acx]
[<c0160482>][ 92] worker_thread+0x112/0x220
[<c05bbeda>][ 40] ? schedule+0x37a/0x7a0
[<d0b3c0b0>][ 40] ? acx_e_after_interrupt_task+0x0/0x490 [acx]
[<c0164710>][ 40] ? autoremove_wake_function+0x0/0x50
[<c0160370>][ 40] ? worker_thread+0x0/0x220
[<c01642e4>][ 40] kthread+0x74/0x80
[<c0164270>][ 813219868] ? kthread+0x0/0x80
[<c01036fe>][ 813219868] kernel_thread_helper+0x6/0x10