id summary reporter owner description type status priority milestone component version resolution keywords cc field_blocks field_dependson field_seealso 233 kbox_proc_phone_hungup() holds spinlocks while taking a mutex Jakub Jermář "In kbox_proc_phone_hungup() we have the following locking sequence: spinlock_lock(&TASK->lock); spinlock_lock(&TASK->kb.box.lock); mutex_lock(&TASK->kb.cleanup_lock); Note that holding a spinlock while taking a mutex is considered harmful." defect closed major 0.4.3 helenos/kernel/generic mainline fixed