Linux 3.2.0 Oops/Recursive fault on shutdown

Hi,

after upgrading the kernel to 3.2 the system oopsed on shutdown. Unfortunately there was nothing in the logs so all I have is a photo of the screen. System is an Intel Desktop (E8400), using cryptsetup / mdadm / LVM.

I posted it along with kernel config / system.map / lspci here:

http://www.metamorpher.de/kp32/

Function names mentioned in the trace:
(full info please see the screenshot)

? wq_worker_sleeping
? __schedule
? do_exit
? oops_end
? do_invalid_op
? md_write_start
? ata_scsi_simulate
? cpumask_next_and
? find_busiest_group
? invalid_op
? md_write_start
? blkcipher_walk_done
? make_request
? crypto_aes_decrypt_x86
? encrypt
? md_make_request
? crypt_convert
? generic_make_request
? kcryptd_crypt
? kcryptd_async_done
? process_one_work
? worker_thread
? manage_workers.clone.26
? manage_workers.clone.26
? kthread
? kernel_thread_helper
? kthread_worker_fn
? gs_change
? kthread_data

Haven't been able to reproduce the issue so far, but maybe the screenshot tells someone something that needs fixing.

Regards
Andreas Klauer