Hi, Christoph. 2012/9/29 Christoph Lameter <cl@xxxxxxxxx>: > @@ -3930,6 +3905,10 @@ int __kmem_cache_create(struct kmem_cach > if (err) > return err; > > + /* Mutex is not taken during early boot */ > + if (slab_state <= UP) > + return 0; > + > mutex_unlock(&slab_mutex); > err = sysfs_slab_add(s); > mutex_lock(&slab_mutex); This addition should go to previous patch "create common functions for boot slab creation". In there, create_boot_cache() call __kmem_cache_create(), and then mutex_unlock() is called without taking mutext. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>