Updated: 11 December 1998

OpenVMS Version 7.2
New Features Manual

To install an image with shared address data, you use the new keyword ADDRESS_DATA with the INSTALL/SHARED command:

$ INSTALL CREATE/SHARED=ADDRESS_DATA imagename

Note that when you install an image (Image A, for example) with shared address data, and Image B is called by Image A, Image B must also be installed with shared address data. Two corollaries of this rule are the following:

• If Image B is not installed with shared address data, the Install utility displays a message indicating this, and Image A is installed without shared address data.
• If Image B is removed (with the command $ INSTALL REMOVE B), when the image activator subsequently activates Image A, the activator will create unshared address data sections for Image A.

On OpenVMS Alpha systems, you can use the [NO]ADDRESS_DATA keyword with the following commands:

• INSTALL> CREATE/SHARED[=[NO]ADDRESS_DATA]
• INSTALL> REPLACE/SHARED[=[NO]ADDRESS_DATA]

When you use the ADDRESS_DATA keyword with either command, P1 space addresses are assigned for shareable images. With the assigned addresses, the Install utility can determine the content of an address data section when the image is installed rather than when it is activated, reducing CPU and I/O time. A global section is created to allow shared access to address data image sections.

Example:

INSTALL> CREATE/SHARED=ADDRESS_DATA WRKD$:[MAIN]INFOSHR

The command in this example installs the INFOSHR file as a shared known image and creates shared global sections for code sections and read-only data sections. Because the command includes the ADDRESS_DATA keyword, address data is also created as a shared global section.

4.20 System Dump Analyzer (SDA) Enhancements (Alpha Only)

The following sections describe the new SDA features included in OpenVMS Version 7.2.

4.20.1 New and Enhanced Commands

The following SDA CLUE extension commands, SDA extension routines, and SDA commands are either new or have new or changed qualifiers or parameters for OpenVMS Alpha Version 7.2. For further information about these commands, see the OpenVMS Alpha System Analysis Tools Manual.

4.20.1.1 CLUE CALL_FRAME Extension Command

The following table shows the qualifiers for the CLUE CALL_FRAME extension command:

Qualifier	Meaning
/ADDRESS= n	Specifies the PCB address of the desired process when used with CLUE CALL_FRAME/PROCESS.
/CPU [cpu-id|ALL	Indicates that the call frame for a CPU is required. The CPU should be specified by its number or by using ALL to indicate all CPUs.
/IDENTIFICATION= n	Specifies the identification of the desired process when used with CLUE CALL_FRAME/PROCESS.
/INDEX= n	Specifies the index of the desired process when used with CLUE CALL_FRAME/PROCESS.
/PROCESS [process-name|ALL]	Indicates that the call frame for a process is required. The process should be specified with one of the qualifiers /ADDRESS, /IDENTIFICATION, or /INDEX; or by its name, or by using ALL to indicate all processes.

4.20.1.2 CLUE ERRLOG Extension Command:/OLD qualifier

The CLUE ERRLOG extension command has a new qualifier, /OLD. The /OLD qualifier dumps the errorlog buffers into a file using the old errorlog format. The default action, if /OLD is not specified, is to dump the errorlog buffers in the common event header format.

4.20.1.3 CLUE FRU Extension Command

The CLUE FRU extension command outputs the Field Replacement Unit (FRU) table to a file for display by DECevent.

4.20.1.4 CLUE REGISTER Extension Command

The Alpha SDA new command CLUE REGISTER displays the active registers for the crash CPU. The CLUE REGISTER command is only valid when analyzing crash dumps.

4.20.1.5 CLUE SG Extension Command: /CRAB qualifier

The CLUE SG extension command displays the scatter-gather map. The /CRAB qualifier displays the ringbuffer for the specified Counted Resource Allocation Block (CRAB). The default action is to display the ringbuffer for all CRABs.

4.20.1.6 CLUE SYSTEM/LOGICAL Extension Command

The Alpha SDA new command CLUE SYSTEM/LOGICAL command displays the contents of the shared logical name tables in the system.

4.20.1.7 SDA$GET_CURRENT_CPU Extension Routine

The SDA$GET_CURRENT_CPU extension routine gets the CPU database address of the currently selected CPU.

4.20.1.8 SDA$SET_CPU Extension Routine

The SDA$SET_CPU extension routine sets a new SDA CPU context.

4.20.1.9 SDA$SET_PROCESS Extension Routine

The SDA$SET_PROCESS extension routine sets a new SDA process context.

4.20.1.10 SHOW DUMP Command: /MEMORY_MAP Qualifier

Displays the memory map of a full dump.

4.20.1.11 SHOW EXECUTIVE Command: EXECLET-NAME Parameter

The Alpha SDA command SHOW EXECUTIVE has a new parameter, execlet-name. If execlet-name is given, SDA only displays the data for the specified execlet. Wildcards can be used in execlet-name, in which case SDA displays data for all matching execlets.

The benefit of the execlet-name parameter is to reduce the volume of output necessary to obtain the desired information.

4.20.1.12 SHOW EXECUTIVE Command: /SUMMARY Qualifier

The Alpha SDA command SHOW EXECUTIVE has a new qualifier. The /SUMMARY qualifier displays a single line of output for each loadable image.

4.20.1.13 SHOW GSD Command: New Qualifiers

The SHOW GSD command has the following new qualifiers:

Qualifier	Meaning
/GLXGRP	Displays information in the group global section descriptors of a Galaxy system
/GLXSYS	Displays information in the system global section descriptors of a Galaxy system

4.20.1.14 SHOW LOCK Command: New Qualifiers

The SHOW LOCK command has the following new qualifiers:

Qualifier	Meaning
/BLOCKING	Displays only the locks that have a blocking AST specified or attached
/BRIEF	Displays a brief one line of lock information
/CONVERT	Displays only the locks that are on the conversion queue
/GRANTED	Displays only the locks that are on the granted queue
/POOL	Displays the lock managers poolzone information, which contains the lock blocks (LKB) and resource blocks (RSB)
/STATUS=( keyword [, keyword...])	Displays only the locks that have the specified status bits set in the LKB$L_STATUS field. For the keywords and their meanings for this qualifier, see the OpenVMS Alpha System Analysis Tools Manual.
/SUMMARY	Displays summary data and performance counters
/WAITING	Displays only the waiting locks

4.20.1.15 SHOW PAGE_TABLE Command: Qualifiers

The Alpha SDA command SHOW PAGE_TABLE has the following new qualifiers:

Qualifier	Meaning
/INVALID_PFN [= option]	This qualifier, which is valid on platforms that supply an I/O memory map, causes SDA to display only page table entries that map to PFNs that are not in the system's private memory, nor in Galaxy shared memory, nor are I/O access pages.
/NONMEMORY_PFN [= option]	This qualifier, supported on all platforms, causes SDA to display only page table entries that are neither in the system's private memory nor in Galaxy shared memory.
/PTE_ADDRESS	Specifies that the range given is of PTE addresses instead of the virtual addresses mapped by the PTEs.
/SECTION_INDEX= n	Displays the page table for the range of pages in the global section or pageable part of a loaded image.

The Alpha SDA command SHOW PAGE_TABLE /FREE has a new qualifier. The /HEADER=address qualifier causes SDA to display the free list for the specified private page table.

4.20.1.17 SHOW PARAMETER Command

The Alpha SDA new command SHOW PARAMETER displays the name, location, and value of one or more SYSGEN parameters at the time that the system dump is taken.

The SHOW PARAMETER command has the following parameter:

Parameter	Meaning
SYSGEN_parameter	The name of a parameter to be displayed. The name given may include wildcards. However, a truncated name is not recognized, unlike the equivalent SYSGEN and SYSMAN commands.

The SHOW PARAMETER has the following qualifiers:

Qualifier	Meaning
/ACP	Displays all Files-11 parameters.
/ALL	Displays the values of all parameters except the special control parameters.
/CLUSTER	Displays all parameters specific to clusters.
/DYNAMIC	Displays all parameters that can be changed on a running system.
/GALAXY	Displays all parameters specific to Galaxy systems.
/GEN	Displays all general parameters.
/JOB	Displays all Job Controller parameters.
/LGI	Displays all LOGIN security control parameters.
/MAJOR	Displays the most important parameters.
/MULTIPROCESSING	Displays parameters specific to multiprocessing.
/PQL	Displays the parameters for all default process quotas.
/RMS	Displays all parameters specific to OpenVMS Record Management Services (RMS).
/SCS	Displays all parameters specific to OpenVMS Cluster System Communications Services.
/SPECIAL	Displays all special control parameters.
/STARTUP	Displays the name of the site-independent startup procedure.
/SYS	Displays all active system parameters.
/TTY	Displays all parameters for terminal drivers.

4.20.1.18 SHOW PFN_DATA Command: /UNTESTED and /PRIVATE [=address] Qualifiers

The Alpha SDA command SHOW PFN_DATA has two new qualifiers: /PRIVATE [=address] and /UNTESTED. The /PRIVATE [=address] qualifier causes SDA to display private PFN lists. If no address is given, all private PFN lists are displayed; if an address is given, only the PFN list whose head is at the given address is displayed. The /UNTESTED qualifier causes SDA to display the state of the untested PFN list that was set up for deferred memory testing.

4.20.1.19 SHOW PROCESS Command: New Qualifiers

The Alpha SDA command SHOW PROCESS has the following new qualifiers:

Qualifier	Meaning
/BRIEF	This qualifier, when used with the /LOCKS qualifier, causes SDA to display each lock owned by the current process in brief format; that is, one line for each lock.
/CHANNEL [=PID_ONLY]	Displays information about the I/O channels assigned to the process. If the keyword FID_ONLY is given, SDA does not attempt to translate the FID (File ID) to a file name when invoked with ANALYZE/SYSTEM.
/FANDLE	Displays the data on the process's fast I/O handles.
/INVALID_PFN [= option]	This qualifier, which is valid on platforms that supply an I/O memory map, causes SDA to display only page table entries that map to PFNs that are not in the system's private memory, nor in Galaxy shared memory, nor are I/O access pages.
/LOCKS [/BRIEF]	Displays the lock management locks owned by the current process. The /LOCKS [/BRIEF] qualifier produces a display similar in format to that produced by the SHOW LOCK command. See also the /BRIEF qualifier description.
/NONMEMORY_PFN [= option]	This qualifier, supported on all platforms, causes SDA to display only page table entries that are neither in the system's private memory nor in Galaxy shared memory.
/PERSONA [=address]	Displays all persona security blocks (PSBs) held in the PERSONA ARRAY of the process, and then lists selected information contained in each initially listed PSB. The selected information includes the contents of the following cells inside the PSB: Flags Reference count Execution mode Audit status Account name UIC Privileges Rights enabled mask If a PSB address is specified, the above information is provided for that specific PSB only.
/PERSONA/RIGHTS	Displays all the /PERSONA [=address] information and additional selected information, including all the Rights and their attributes currently held and active for each persona security block (PSB).
/PERSONA/RIGHTS/AUTHORIZED	Displays all the /PERSONA [=address] information and additional selected information, including all the Rights and their attributes authorized for each persona security block (PSB).

4.20.1.20 SHOW PROCESS/PAGE_TABLES Command

The SHOW PROCESS/PAGE_TABLES command has the following new qualifiers:

Qualifier	Meaning
/PTE_ADDRESS	Specifies a PTE address instead of the virtual address mapped by the PTE.
/SECTION_INDEX= n	Displays the page table for the range of pages in the global section or pageable part of a loaded image, or the process section specified when used with the /PAGE_TABLE qualifier. Except for global sections where global page table entries (GPTEs) are displayed, one of the qualifiers /L1, /L2, or /L3 can also be specified. Displays the PST for the single process section specified when used with the /PROCESS_SECTION_TABLE qualifier. The /SECTION_INDEX= n qualifier is ignored if neither the /PAGE_TABLE nor the /PROCESS_SECTION_TABLE qualifiers is specified.
/INVALID_PFN [= option]	This qualifier, which is valid on platforms that supply an I/O memory map, causes SDA to display only page table entries that map to PFNs that are not in the system's private memory, nor in Galaxy shared memory, nor are I/O access pages.
/NONMEMORY_PFN [= option]	This qualifier, supported on all platforms, causes SDA to display only page table entries that are neither in the system's private memory nor in Galaxy shared memory.

The SHOW RESOURCE command has the following new qualifiers:

Qualifier	Meaning
/BRIEF	Displays a brief one line of the resource information
/CONTENTION [=ALL]	Displays only resources that have at least one lock on either the waiting or conversion queue
/STATUS=( keyword [ keyword,])	Displays only resources that have the specified status bits set in the RSB$L_STATUS field. For the keywords and their meanings for this qualifier, see the OpenVMS Alpha System Analysis Tools Manual.

4.20.1.22 SHOW STACK Command: /PHYSICAL Qualifier

The Alpha SDA command SHOW STACK has a new qualifier: /PHYSICAL. The /PHYSICAL qualifier causes SDA to treat the start and/or end address in the given range as a physical address. This qualifier is only relevant when a range is specified.

4.20.1.23 SHOW STACK Command: RANGE Parameter

The Alpha SDA command SHOW STACK has a new parameter, range. The range parameter displays a range of memory locations in stack format. You can express a range using the following syntax:

Value	Meaning
m:n	Range of addresses from m to n
m;n	Range of addresses starting at m and continuing for n bytes

4.20.1.24 SHOW SUMMARY Command: /USER=username Qualifier

The Alpha SDA command SHOW SUMMARY has a new qualifier /USER=username. If /USER=username is given, SDA only displays the processes of the specified user. Wildcards can be used in /USER=username, in which case SDA displays processes of all matching users.

The benefit of the /USER=username qualifier is to reduce the volume of output necessary to obtain the desired information.

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