1997 2013 Ericsson AB, All Rights Reserved Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. The Initial Developer of the Original Code is Ericsson AB. VME Bus Driver Fredrik Tillman ETX/B/SFP/TILLMAN:96-002 1996-10-29 PA1 vme_problems.sgml

This chapter describes the OS specific parts of OTP which relate to the VME Bus Driver.

Installation Problems

The hardware watchdog timer which is controlled by the heart port program requires the FORCEvme package, which contains the VME bus driver, to be installed. This driver, however, might clash with the Sun mcp driver and cause the system to completely refuse to boot. To cure this problem, the following lines should be added to /etc/system:

exclude: drv/mcp exclude: drv/mcpzsa exclude: drv/mcpp

It is recommended that these lines be added to avoid the clash described, which may make it completely impossible to boot the system.