HP Visualize J5000 hp Visualize J5000, J7000 workstations owner's guide (a4476 - Page 122

Memory Failures J Class systems use Memory Page Deallocation, a feature that allows the system to provide information to the operating system about memory failures. HP-UX 10.0 uses Memory Page Deallocation information to map out the failing memory areas, and continue normal operation. You can use the command memrpt with the detail switch to obtain information about the Memory Page Deallocation Table (PDT) as well as single bit errors logged by the system. # /usr/sbin/sysdiag Enter DUI >logtool Enter LOGTOOL> memrpt detail Enter NOTICE: You must be logged in as superuser to use the memrpt command. To exit the sysdiag and logtool utilities, use the exit command. The pdt can also be checked using the pdt command in the Service menu of the boot console handler. If a failing SIMM is replaced, use the Service menu pdt clear command to clear out the PDT. HP-UX 9.05 halts when it detects the presence of bad memory at boot up and displays the following message: ISL booting hpux Secondary Loader 9000/700 Revision 3.08 Booting /hp-ux 2103692 + 319488 + 309344 start 0x25030 panic: Memory self-test failed 6-11