linux kernel panic 调用过程

mdm_modem_initialize_dataàmdev->mdm_panic_blk.notifier_call  = mdm_panic_prep;

                        àatomic_notifier_chain_register(&panic_notifier_list,

                               &mdev->mdm_panic_blk);

Panicàatomic_notifier_call_chainànotifier_call_chainàret= nb->notifier_call(nb, val, v);