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OpenVMS Version 7.1 New Features Manual


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For more detailed information, see the OpenVMS Alpha System Dump Analyzer Utility Manual.

4.14.1.2 SHOW ADDRESS Command

The SHOW ADDRESS command displays page table related information about a memory address. It has one parameter and one qualifier. Table 4-5 shows the one parameter and its meaning.

Table 4-5 SHOW ADDRESS Parameter
Parameter Meaning
address Shows where an address is mapped at different page table entry levels.

Table 4-6 shows the one qualifier and its meaning.

Table 4-6 SHOW ADDRESS Qualifier
Qualifier Meaning
/PHYSICAL Indicates that a physical address has been given. The SHOW ADDRESS command displays the virtual address that maps to the given physical address.


Examples

#1
SDA> SHOW ADDRESS 80000000
FFFFFFFF80000000 is an S0/S1 address
Mapped by Level-3 PTE at: FFFFFFFDFFE00000
Mapped by Level-2 PTE at: FFFFFFFDFF7FF800
Mapped by Level-1 PTE at: FFFFFFFDFF7FDFF0
Mapped by Selfmap PTE at: FFFFFFFDFF7FDFF0
Also mapped in SPT window at: FFFFFFFFFFDF0000

The SHOW ADDRESS command in this example shows where the address 80000000 is mapped at different page table entry levels.

#2
SDA> SHOW ADDRESS 0
0000000000000000 is a P0 address
Mapped by Level-3 PTE at: FFFFFFFC00000000
Mapped by Level-2 PTE at: FFFFFFFDFF000000
Mapped by Level-1 PTE at: FFFFFFFDFF7FC000
Mapped by Selfmap PTE at: FFFFFFFDFF7FDFF0

The SHOW ADDRESS command in this example shows where the address 0 is mapped at different page table entry levels.

#3
SDA> SHOW ADDRESS FFFFFFFDFF000000
FFFFFFFDFF000000 is the address of a process-private Level-2 PTE
Mapped by Level-1 PTE at: FFFFFFFDFF7FC000
Mapped by Selfmap PTE at: FFFFFFFDFF7FDFF0
Range mapped at level 2: FFFFFFFC00000000 to FFFFFFFC00001FFF (1 page)
Range mapped at level 3: 0000000000000000 to 00000000007FFFFF (1024 pages)

The SHOW ADDRESS command in this example shows where the address FFFFFFFDFF7FC000 is mapped at page table entry and the range mapped by the PTE at this address.

For more detailed information, see the OpenVMS Alpha System Dump Analyzer Utility Manual.

4.14.1.3 SHOW BUGCHECK Command

The SHOW BUGCHECK command displays the following bugcheck codes: value, name, and text. It has two parameters and one qualifier. Table 4-7 shows the parameters and their meanings.

Table 4-7 SHOW BUGCHECK Parameters
Parameter Meaning
name Displays the named bugcheck code.
number Displays the requested bugcheck code.

Table 4-8 shows the one qualifier.

Table 4-8 SHOW BUGCHECK Qualifier
Qualifier Meaning
/ALL Displays all bugcheck codes. It is the default.


Examples

#1
SDA> SHOW BUGCHECK 100
0100  DIRENTRY       ACP failed to find same directory entry

The SHOW BUGCHECK command in this example shows the requested bugcheck by number.

#2
SDA> SHOW BUGCHECK DECNET
08D0  DECNET         DECnet detected a fatal error

The SHOW BUGCHECK command in this example shows the requested bugcheck by name.

#3
SDA> SHOW BUGCHECK   
BUGCHECK codes and texts
------------------------
0008  ACPMBFAIL      ACP failure to read mailbox
0010  ACPVAFAIL      ACP failure to return virtual address space
0018  ALCPHD         Allocate process header error
0020  ALCSMBCLR      ACP tried to allocate space already allocated
   .
   .
   .

The SHOW BUGCHECK command in this example shows the requested bugcheck by displaying all codes.

For more detailed information, see the OpenVMS Alpha System Dump Analyzer Utility Manual.

4.14.1.4 SHOW GLOBAL_SECTION_TABLE Command

The SHOW GLOBAL_SECTION_TABLE command displays information contained in the global section table. There are no parameters and one qualifier. Table 4-9 shows the qualifier and its meaning.

Table 4-9 SHOW GLOBAL_SECTION_TABLE Qualifier
Qualifier Meaning
/SECTION_INDEX= n Displays the global section table entry for the specified section.

This new command is equivalent to the SHOW PROCESS /SYSTEM /PROCESS_SECTION_TABLE command.


Example



For more detailed information, see the OpenVMS Alpha System Dump Analyzer Utility Manual.

4.14.1.5 SHOW GSD Command

The SHOW GSD command displays information contained in the global section descriptors. It has no parameters and four qualifiers. Table 4-10 shows the qualifiers and their meanings.

Table 4-10 SHOW GSD Qualifiers
Qualifiers Meaning
/ALL Displays information in all global section descriptors; that is, the system, group, and deleted global section descriptors. This qualifier is the default.
/SYSTEM Displays information in the system global section descriptors.
/GROUP Displays information in the group global section descriptors.
/DELETED Displays information in the deleted global section descriptors; that is, a delete pending.


Example



For more detailed information, see the OpenVMS Alpha System Dump Analyzer Utility Manual.

4.14.1.6 SHOW RMD Command

The SHOW RMD command displays information contained in the reserved memory descriptors. Reserved memory is used within the system by memory-resident global sections. It has two qualifiers. Table 4-11 shows the qualifiers and their meanings.

Table 4-11 SHOW RMD Qualifiers
Qualifiers Meaning
/ADDRESS= n Displays a specific reserved memory descriptor entry, given its address.
/ALL Displays information in all the reserved memory descriptors. This qualifier is the default.


Example

SDA> SHOW RMD
Reserved Memory Descriptor List
-------------------------------
 
ADDRESS  NAME       GROUP   PFN     COUNT    IN_USE  ZERO_PFN  FLAGS 
 
80D21200 MILORD2     -S-  00000000 00000100 00000000 00000000 00000000 
80D21100 MILORD1     -S-  00000A00 00000080 00000000 00000A00 00000001 ALLOC 
80D21280 MILORD2     -S-  00000000 00000001 00000000 00000000 00000040 PAGE_TABLES 
80D21180 MILORD1     -S-  00000180 00000001 00000000 00000180 00000041 ALLOC PAGE_TABLES

For more detailed information, see the OpenVMS Alpha System Dump Analyzer Utility Manual.

4.14.1.7 SHOW WORKING_SET_LIST Command

The SHOW WORKING_SET_LIST command displays the system working set list and retains the current process context. This command has no parameters or qualifiers. It does have, however, three options available. Table 4-12 shows the options for this command.

Table 4-12 Options for the SHOW WORKING_SET_LIST Command
Options Meaning
WORKING_SET_LIST = GPT Displays only working set list entries that are for global page table pages.
WORKING_SET_LIST = SYSTEM Displays only working set list entries for pageable system pages.
WORKING_SET_LIST = LOCKED Displays only working set list entries for pageable system pages that are locked in the system working set.

This new command is equivalent to the SHOW PROCESS /SYSTEM /WORKING_SET_LIST command.

For more detailed information, see the OpenVMS Alpha System Dump Analyzer Utility Manual.

4.14.1.8 VALIDATE PFN_LIST Command

The VALIDATE PFN_LIST command validates that the page counts on lists are correct. It has no parameters and five qualifiers. Table 4-13 shows the qualifiers.

Table 4-13 VALIDATE PFN_LIST Qualifiers
Qualifiers Meaning
/ALL Validates all the PFN lists: bad, free, modified, and zero.
/BAD Validates the bad page list.
/FREE Validates the free page list.
/MODIFIED Validates the modified page list.
/ZERO Validates the zero page list.

For more detailed information, see the OpenVMS Alpha System Dump Analyzer Utility Manual.

4.14.2 New Qualifiers, Options, and Parameters

The following sections present the new OpenVMS Alpha SDA qualifiers, options, and parameters.

4.14.2.1 EVALUATE Qualifier

There is one new qualifier for the EVALUATE command. Table 4-14 shows the qualifier and its meaning.

Table 4-14 EVALUATE Command New Qualifier
Qualifier Meaning
/TIME Interprets and displays the expression as a 64-bit time value. Positive values are interpreted as absolute time; negative values are interpreted as delta time.

For more detailed information, see the OpenVMS Alpha System Dump Analyzer Utility Manual.

4.14.2.2 FORMAT Qualifier

There is one new qualifier for the FORMAT command. Table 4-15 shows the qualifier and its meaning.

Table 4-15 FORMAT Command New Qualifier
Qualifier Meaning
/PHYSICAL Specifies that the location given is a physical address.

For more detailed information, see the OpenVMS Alpha System Dump Analyzer Utility Manual.

4.14.2.3 READ Qualifiers

There are two new qualifiers for the READ command. Table 4-16 shows the qualifiers and their meanings.

Table 4-16 READ Command New Qualifiers
Qualifier Meaning
/LOG Outputs for each symbol table file %SDA-I-READSYM. The qualifier /LOG enables the %SDA-I-READSYM capability, which is the default.
/NOLOG Suppresses the %SDA-I-READSYM message normally output by the SDA READ command for each symbol table file.

For more detailed information, see the OpenVMS Alpha System Dump Analyzer Utility Manual.

4.14.2.4 SEARCH Qualifier

There is one new qualifier for the SEARCH command. Table 4-17 shows the qualifier and its meaning.

Table 4-17 SEARCH Command New Qualifier
Qualifier Meaning
/PHYSICAL Specifies that the addresses used to define the range of locations to be searched are physical addresses.

For more detailed information, see the OpenVMS Alpha System Dump Analyzer Utility Manual.

4.14.2.5 SET FETCH Qualifiers

There are two new qualifiers for the SET FETCH command. Table 4-18 shows the qualifiers and their meanings.

Table 4-18 SET FETCH Command New Qualifiers
Qualifier Meaning
/PHYSICAL Sets the default access method to physical addresses.
/VIRTUAL Sets the default access method to virtual addresses.

For more detailed information, see the OpenVMS Alpha System Dump Analyzer Utility Manual.

4.14.2.6 SHOW LAN Qualifiers

There are four new qualifiers for the SHOW LAN command. Table 4-19 shows the qualifiers and their meanings.

Table 4-19 SHOW LAN Command New Qualifiers
Qualifier Meaning
/ELAN Specifies information from an Emulated LAN (ELAN) that runs over an asynchronous transfer mode (ATM) network. The /ELAN qualifier displays the LAN station block (LSB) address, device state, and the LSB fields pertinent to an ELAN for both the parent ATM device and the ELAN psuedodevice drivers. It also specifies the name, description, parent device, state, and LAN emulation client (LEC) attributes of the ELAN.

The qualifier /ELAN used with the device qualifier (/LAN/device=ELA) only displays information for the specified device or psuedodevice.

/ICOUNTERS Specifies internal counters of the drivers by displaying the internal counters. If the /ICOUNTERS qualifier is used with the /DEVICE qualifier, the /ICOUNTERS qualifier specifies the internal counters of a specific driver.
/QUEUE Specifies a listing of all queues, whether their status is valid or invalid, and all elements of the queues. If the /QUEUE qualifier is used with the /DEVICE qualifier, the /QUEUE specifies a specific queue.
/VCI Specifies the VMS Communication Interface Block (VCIB) for each LAN device with an active VCI user. If the /VCI qualifier is used with the /DEVICE qualifier, the VCIB is only displayed for the specified device.

An example of the qualifier /VCI is as follows:


Example

SDA> SHOW LAN/VCI/DEVICE=ICB
               -- ICB VCI Information 17-APR-1996 14:22:07 --
LSB address  = 80A1D580
Device state = 00000003 RUN,INITED
         -- ICB2 80-41 (LAST) VCI Information 17-APR-1996 14:22:07 --
VCIB address =    8096F238
CLIENT flags:     00000001 RCV_DCB
LAN flags:        00000004 LAN_INIT
DLL flags:        00000005 XMT_CHAIN,PORT_STATUS
UCB status:       00000015 STRTN,UNIQ,STRTD
VCI ID                         LAST    VCI version               00010001
UCB address                80A4C5C0    DP VCRP address           00000000
Hardware address  00-00-93-08-52-CF    LDC address               80A1D720
Physical address  00-00-93-08-52-CF    LAN medium                      TR
Transmit available         80A1D670    Outstanding operations           0
Maximum receives                  0    Outstanding receives             0
Max xmt size                   4444    Header size                     52
Build header rtn           808BF230    Report event rtn          86327130
XMT initiate rtn           808BF200    Transmit complete rtn     86326D80
XMT frame rtn              808BF210    Receive complete rtn      86326A80
      -- ICB2 80-41 (LAST) VCI Information (cont) 17-APR-1996 14:22:07 --
Portmgmt initiate rtn      808BF0C0    Portmgmt complete rtn     86327100
Monitor request rtn        00000000    Monitor transmit rtn      00000000
Monitor flags              00000000    Monitor receive rtn       00000000
Port usable                00000000    Port unusable             00000000

The SHOW LAN/VCI/DEVICE=ICB command displays the VCIB for a Token Ring device (ICB) which has an active VCI user (LAST).

Examples of the qualifier /ELAN are as follows:


Examples

#1
SDA> SHOW LAN/ELAN
        -- HCA Emulated LAN LSB Information 17-APR-1996 14:08:02 --
LSB address = 8098D200
Device state = 00000101 RUN,RING_AVAIL
Driver CM VC setup adr   808986A0    Driver CM VC teardown adr    80898668
NIPG CM handle adr       8096C30C    NIPG CM SVC handle           00000000
NIPG CM agent handle adr 809B364C    NIPG CM mgr lineup handle    809B394C
NIPG CM ILMI IO handle   809B378C    MIB II handle adr            809B94CC
MIB handle adr           809B3ACC    Queue header for EL LSBs     00000000
DEC MIB handle adr       809BBD8C    NIPG current TQEs used       00000000
Count of allocated TQEs  0000000D    NIPG current pool used       0000D2C0
NIPG pool allocations    00075730
        -- ELA Emulated LAN LSB Information 17-APR-1996 14:08:02 --
LSB address = 80AB08C0
Device state = 00000001 RUN
ELAN name = ELAN 1
ELAN description = ATM ELAN
ELAN parent = HCA0
ELAN state = 00000001 ACTIVE
MAX transmit size     MTU_1516          ELAN media type      LAN_802_3
LEC attr buff adr     80AB1FC0          LEC attr buff size    00000328
Event mask            00000000          PVC identifer         00000000
Extended sense        00000000
         -- ELA Emulated LAN LEC Attributes 17-APR-1996 14:08:02 --
LAN type          00000000          LAN MTU              00000001
Proxy flag        00000000          Control timeout      0000000A
Max UF count      00000001          Max UF time          00000001
VCC timeout       000004B0          Max retry count      00000002
LEC id            00000002          Forw delay time      0000000F
Flush timeout     00000004          Path switch delay    00000006
SM state          00000070          Illegal CTRL frames  00000000
CTRL xmt failures 00000000          CTRL frames sent     0000000C
CTRL frames_rcvd  00000012          LEARPs sent          00000000
LEARPS rcvd       00000000          UCASTs sent direct   00000000
UCASTs flooded    00000006          UCASTs discarded     00000001
NUCASTs sent      00000000
Local ESI         00000000.00000000
BUS ATM addr      3999990000000008002BA57E80.AA000302FF12.00
LES ATM addr      3999990000000008002BA57E80.AA000302FF14.00
My ATM addr       3999990000000008002BA57E80.08002B2240A0.00

The SHOW LAN/ELAN command displays information for the parent ATM device (HCA) driver and the ELAN psuedodevice (ELA) driver.

#2
SDA> SHOW LAN/ELAN/DEVICE=ELA
        -- ELA Emulated LAN LSB Information 17-APR-1996 14:08:22 --
LSB address = 80AB08C0
Device state = 00000001 RUN
ELAN name = ELAN 1
ELAN description = ATM ELAN
ELAN parent = HCA0
ELAN state = 00000001 ACTIVE
MAX transmit size     MTU_1516          ELAN media type      LAN_802_3
LEC attr buff adr     80AB1FC0          LEC attr buff size    00000328
Event mask            00000000          PVC identifer         00000000
Extended sense        00000000
         -- ELA Emulated LAN LEC Attributes 17-APR-1996 14:08:22 --
LAN type             00000000          LAN MTU              00000001
Proxy flag           00000000          Control timeout      0000000A
Max UF count         00000001          Max UF time          00000001
VCC timeout          000004B0          Max retry count      00000002
LEC id               00000002          Forw delay time      0000000F
Flush timeout        00000004          Path switch delay    00000006
SM state             00000070          Illegal CTRL frames  00000000
CTRL xmt failures    00000000          CTRL frames sent     0000000C
CTRL frames_rcvd     00000012          LEARPs sent          00000000
LEARPS rcvd          00000000          UCASTs sent direct   00000000
UCASTs flooded       00000006          UCASTs discarded     00000001
NUCASTs sent         00000000
Local ESI            00000000.00000000
BUS ATM addr         3999990000000008002BA57E80.AA000302FF12.00
LES ATM addr         3999990000000008002BA57E80.AA000302FF14.00
My ATM addr          3999990000000008002BA57E80.08002B2240A0.00

The SHOW LAN/ELAN/DEVICE=ELA command displays information for the ELAN psuedodevice (ELA) driver only.

#3
SDA> SHOW LAN/ELAN/DEVICE=HCA
       -- HCA Emulated LAN LSB Information 17-APR-1996 14:08:25 --
LSB address = 8098D200
Device state = 00000101 RUN,RING_AVAIL
Driver CM VC setup adr   808986A0    Driver CM VC teardown adr    80898668
NIPG CM handle adr       8096C30C    NIPG CM SVC handle           00000000
NIPG CM agent handle adr 809B364C    NIPG CM mgr lineup handle    809B394C
NIPG CM ILMI IO handle   809B378C    MIB II handle adr            809B94CC
MIB handle adr           809B3ACC    Queue header for EL LSBs     00000000
DEC MIB handle adr       809BBD8C    NIPG current TQEs used       00000000
Count of allocated TQEs  0000000D    NIPG current pool used       0000D2C0
NIPG pool allocations    000757B2

The SHOW LAN/ELAN/DEVICE=HCA command displays information for the ATM device (HCA) driver only.

For more detailed information, see the OpenVMS Alpha System Dump Analyzer Utility Manual.

4.14.2.7 SHOW PFN_DATA Qualifiers

There are three new qualifiers for the SHOW PFN_DATA command. Table 4-20 shows the qualifiers and their meaning.

Table 4-20 SHOW PFN_DATA Command New Qualifiers
Qualifier Meaning
/BAD Displays the bad-page list. SDA precedes the list with a count of the pages it contains, its low limit, and its high limit.
/COLOR [={ n|ALL}] Displays data on page coloring. See Table 4-21 for the command options available with this qualifier.
/ZERO Displays the contents of the zeroed free page list.

Table 4-21 shows the command options that the /COLOR qualifier supports.

Table 4-21 Command Options with the /COLOR Qualifier
Options Meaning
/COLOR with no value Displays a summary of the lengths of the colored page lists for both free pages and zeroed pages.
/COLOR= n where n is a color number Displays the data in the PFN lists (for the specified color) for both free and zeroed pages.
/COLOR=ALL Displays the data in the PFN lists (for all colors) for both free and zeroed free pages.
/COLOR= n or /COLOR=ALL with /FREE or /ZERO Displays only the data in the PFN list (for the specified color or all colors) for either free or zeroed free pages as appropriate. The qualifiers /BAD and /MODIFIED are ignored with /COLOR= n and /COLOR=ALL.
/COLOR without an option specified together with one or more of /FREE, /ZERO, /BAD, or /MODIFIED Displays the color summary in addition to the display of the requested list(s).

For more information on page coloring, see the OpenVMS System Management Utilities Reference Manual: M--Z.

For more detailed information about the SHOW PFN_DATA command, see the OpenVMS Alpha System Dump Analyzer Utility Manual.

4.14.2.8 SHOW POOL Qualifier

There is one new qualifier for the SHOW POOL command. Table 4-22 shows the qualifier and its meaning.

Table 4-22 SHOW POOL Command New Qualifier
Qualifier Meaning
/BAP Displays the contents of the bus-addressable dynamic pool currently in use.

For more detailed information, see the OpenVMS Alpha System Dump Analyzer Utility Manual.

4.14.2.9 SHOW PROCESS Qualifiers

There are two new qualifiers for the SHOW PROCESS /PAGE_TABLES command. Table 4-23 shows the qualifiers and their meanings.

Table 4-23 SHOW PROCESS /PAGE_TABLES Command New Qualifiers
Qualifier Meaning
/PAGE_TABLES = ALL Displays the entire page table for the process from address zero to the end of process-private page table space.
/PAGE_TABLES /PT Displays the page tables of the page table region.

For more detailed information, see the OpenVMS Alpha System Dump Analyzer Utility Manual.

4.14.2.10 SHOW PROCESS Options

There are five new options for the SHOW PROCESS /WORKING_SET_LIST command. Table 4-24 shows the options and their meanings.

Table 4-24 SHOW PROCESS /WORKING_SET_LIST Command New Options
Option Meaning
/WORKING_SET_LIST = GLOBAL Displays global pages currently in the working set of the process.
/WORKING_SET_LIST = LOCKED Displays pages locked into the process's working set.
/WORKING_SET_LIST = MODIFIED Displays working set list entries marked modified.
/WORKING_SET_LIST = PPT Displays process page table pages.
/WORKING_SET_LIST = PROCESS Displays process private pages.


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