Hi, what can/should I do to help fix that problem ? for now, RBD kernel client hang on : Assertion failure in rbd_img_obj_callback() at line 2131: rbd_assert(which >= img_request->next_completion); or on : Assertion failure in rbd_img_obj_callback() at line 2127: rbd_assert(img_request != NULL); I have both case at least once per week, on latest 3.13.5 kernels. It seems that the problem occurs only on more loaded servers (I have 4 near same servers, and crash occurs on two of them. If I move the VM, crash follows...). Olivier -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html