Document revision date: 19 July 1999 | |
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The CLUE MEMORY/GH/FULL command displays data structures that describe huge pages.
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SDA> CLUE MEMORY/LAYOUT System Virtual Address Space Layout: ------------------------------------ Item Base End Length System Virtual Base Address FFFFFFFE.00000000 PFN Database FFFFFFFE.00000000 FFFFFFFE.00050000 00050000 Permanent Mapping of System L1PT FFFFFFFE.00050000 FFFFFFFE.00052000 00002000 Global Page Table (GPT) FFFFFFFE.00052000 FFFFFFFE.00063608 00011608 Lock ID Table FFFFFFFF.7FFD0000 FFFFFFFF.80000000 00030000 Execlet Code Region FFFFFFFF.80000000 FFFFFFFF.80400000 00400000 Resident Image Code Region FFFFFFFF.80400000 FFFFFFFF.80C00000 00800000 System Header FFFFFFFF.80D00000 FFFFFFFF.80D0A000 0000A000 Error Log Allocation Buffers FFFFFFFF.80D0A000 FFFFFFFF.80D0C000 00002000 Nonpaged Pool (initial size) FFFFFFFF.80D0E000 FFFFFFFF.80ECA000 001BC000 Nonpaged Pool Expansion Area FFFFFFFF.80ECA000 FFFFFFFF.815BC000 006F2000 Execlet Data Region FFFFFFFF.80C00000 FFFFFFFF.80D00000 00100000 Fork Buffers Secondary to Primary FFFFFFFF.82982000 FFFFFFFF.82984000 00002000 Erase Pattern Buffer Page FFFFFFFF.82990000 FFFFFFFF.82992000 00002000 63 Balance Slots - 3 pages each FFFFFFFF.815C0000 FFFFFFFF.8173A000 0017A000 Paged Pool FFFFFFFF.8173A000 FFFFFFFF.81820000 000E6000 System Control Block (SCB) FFFFFFFF.81820000 FFFFFFFF.81828000 00008000 Restart Parameter Block (HWRPB) FFFFFFFF.8186E000 FFFFFFFF.81872000 00004000 Erase Pattern Page Table Page FFFFFFFF.82992000 FFFFFFFF.82994000 00002000 Posix Cloning Parent Page Mapping FFFFFFFF.829D0000 FFFFFFFF.829D2000 00002000 Posix Cloning Child Page Mapping FFFFFFFF.829D2000 FFFFFFFF.829D4000 00002000 Swapper Process Kernel Stack FFFFFFFF.82A8C000 FFFFFFFF.82A8E000 00002000 Swapper Map FFFFFFFF.82AA2000 FFFFFFFF.82AA8000 00006000 Idle Loop's Mapping of Zero Pages FFFFFFFF.82A8E000 FFFFFFFF.82A90000 00002000 PrimCPU Machine Check Logout Area FFFFFFFF.8296A000 FFFFFFFF.8296C000 00002000 PrimCPU Sys Context Kernel Stack FFFFFFFF.82966000 FFFFFFFF.82968000 00002000 Tape Mount Verification Buffer FFFFFFFF.81824000 FFFFFFFF.81828000 00004000 Mount Verification Buffer FFFFFFFF.82980000 FFFFFFFF.82982000 00002000 Demand Zero Optimization Page FFFFFFFF.82C60000 FFFFFFFF.82C62000 00002000 Executive Mode Data Page FFFFFFFF.82C62000 FFFFFFFF.82C64000 00002000 System Space Expansion Region FFFFFFFF.84000000 FFFFFFFF.FFDF0000 7BDF0000 System Page Table Window FFFFFFFF.FFDF0000 FFFFFFFF.FFFF0000 00200000 N/A Space FFFFFFFF.FFFF0000 FFFFFFFF.FFFFFFFF 00010000 |
The CLUE MEMORY/LAYOUT command decodes and displays the system virtual address space layout.
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SDA> CLUE MEMORY/LOOKASIDE Non-Paged Dynamic Storage Pool - Lookaside List Queue Information: ------------------------------------------------------------------ Listhead Addr: FFFFFFFF.80C50400 Size: 64 Status: Valid, 11 elements Listhead Addr: FFFFFFFF.80C50408 Size: 128 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C50410 Size: 192 Status: Valid, 29 elements Listhead Addr: FFFFFFFF.80C50418 Size: 256 Status: Valid, 3 elements Listhead Addr: FFFFFFFF.80C50420 Size: 320 Status: Valid, 7 elements Listhead Addr: FFFFFFFF.80C50428 Size: 384 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C50430 Size: 448 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C50438 Size: 512 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C50440 Size: 576 Status: Valid, 6 elements Listhead Addr: FFFFFFFF.80C50448 Size: 640 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C50450 Size: 704 Status: Valid, 5 elements Listhead Addr: FFFFFFFF.80C50458 Size: 768 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C50460 Size: 832 Status: Valid, empty Listhead Addr: FFFFFFFF.80C50468 Size: 896 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C50470 Size: 960 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C50478 Size: 1024 Status: Valid, 6 elements Listhead Addr: FFFFFFFF.80C50480 Size: 1088 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C50488 Size: 1152 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C50490 Size: 1216 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C50498 Size: 1280 Status: Valid, 2 elements Listhead Addr: FFFFFFFF.80C504A0 Size: 1344 Status: Valid, 2 elements Listhead Addr: FFFFFFFF.80C504A8 Size: 1408 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C504B0 Size: 1472 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C504B8 Size: 1536 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C504C0 Size: 1600 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C504C8 Size: 1664 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C504D0 Size: 1728 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C504D8 Size: 1792 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C504E0 Size: 1856 Status: Valid, empty Listhead Addr: FFFFFFFF.80C504E8 Size: 1920 Status: Valid, empty Listhead Addr: FFFFFFFF.80C504F0 Size: 1984 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C504F8 Size: 2048 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C50500 Size: 2112 Status: Valid, 1 element Listhead Addr: FFFFFFFF.80C50508 Size: 2176 Status: Valid, 15 elements Listhead Addr: FFFFFFFF.80C50510 Size: 2240 Status: Valid, empty Listhead Addr: FFFFFFFF.80C50518 Size: 2304 Status: Valid, 1 element . . . Total free space: 00016440 (hex) 91200 (dec) bytes |
The CLUE MEMORY/LOOKASIDE command summarizes the state of nonpageable lookaside lists. For each list, an indication of whether the queue is well formed is given. If a queue is not well formed or is invalid, messages indicating what is wrong with the queue are displayed. This command is analogous to the SDA command VALIDATE QUEUE.
These messages can also appear frequently when the VALIDATE QUEUE command is used within an SDA session that is analyzing a running system. In a running system, the composition of a queue can change while the command is tracing its links, thus producing an error message.
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SDA> CLUE MEMORY/STATISTIC Memory Management Statistics: ----------------------------- Pagefaults: Non-Paged Pool: Total Page Faults 32181 Successful Exp Attempts 0 Total Page Reads 13017 Unsuccessful Exp Attempts 0 I/O's to read Pages 6131 Expansion Failures 0 Modified Pages Written 1984 Failed Pages Accumulator 0 I/O's to write Mod Pages 31 Total Alloc Requests 3357 Demand Zero Faults 10068 Failed Alloc Requests 0 Global Valid Faults 6191 Paged Pool: Modified Faults 5724 Total Failures 0 Read Faults 0 Failed Pages Accumulator 0 Execute Faults 1834 Total Alloc Requests 1633 Failed Alloc Requests 0 Direct I/O 13619 Cur Mapped Gbl Sections 391 Buffered I/O 72046 Max Mapped Gbl Sections 392 Split I/O 875 Cur Mapped Gbl Pages 7236 Hits 14595 Max Mapped Gbl Pages 7257 Logical Name Transl 207730 Maximum Processes 21 Dead Page Table Scans 0 Sched Zero Pages Created 0 Distributed Lock Manager: Local Incoming Outgoing $ENQ New Lock Requests 77626 0 0 $ENQ Conversion Requests 104843 0 0 $DEQ Dequeue Requests 77395 0 0 Blocking ASTs 12 0 0 Directory Functions 0 0 Deadlock Messages 0 0 $ENQ Requests that Wait 136 Deadlock Searches Performed 2 $ENQ Requests not Queued 5 Deadlocks Found 0 File System Cache: Current SYSGEN Param Hits Misses Hitrate File Header Cache (ACP_HDRCACHE = 126) 4753 1265 78.9% Storage Bitmap Cache (ACP_MAPCACHE = 31) 11 6 64.7% Directory Data Cache (ACP_DIRCACHE = 126) 12174 534 95.7% Directory LRU (ACP_DINDXCACHE= 31) 11158 175 98.4% FID Cache (ACP_FIDCACHE = 64) 95 2 97.9% Extent Cache (ACP_EXTCACHE = 64) 116 4 96.6% Quota Cache (ACP_QUOCACHE = 65) 0 0 0.0% Volume Synch Locks 341 Window Turns 60 Volume Synch Locks Wait 0 Currently Open Files 313 Dir/File Synch Locks 19681 Total Count of OPENs 3038 Dir/file Synch Locks Wait 73 Total Count of ERASE QIOs 8 Access Locks 0 Free Space Cache Wait 17 Global Pagefile Quota 1426 GBLPAGFIL (SYSGEN) Limit 1664 |
The CLUE MEMORY/STATISTIC command displays systemwide performance data such as page fault, I/O, pool, lock manager, MSCP, and file system cache.
Displays process-related information from the current process context.
CLUE PROCESS [/qualifier[,...]]
None.
/BUFFER [/ALL]
Displays the buffer objects for the current process. If the /ALL qualifier is specified, then the buffer objects for all processes (that is, all existing buffer objects) are displayed./LAYOUT
Displays the process P1 virtual address space layout./LOGICAL
Displays the process logical names and equivalence names, if they can be accessed./RECALL
Displays the DCL recall buffer, if it can be accessed.
The CLUE PROCESS command displays process-related information from the current process context. Much of this information is in pageable address space and thus may not be present in a dump file.
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SDA> CLUE PROCESS/LOGICAL Process Logical Names: ---------------------- "SYS$OUTPUT" = "_CLAWS$LTA5004:" "SYS$OUTPUT" = "_CLAWS$LTA5004:" "SYS$DISK" = "WORK1:" "BACKUP_FILE" = "_$65$DUA6" "SYS$PUTMSG" = "...À...À.." "SYS$COMMAND" = "_CLAWS$LTA5004:" "TAPE_LOGICAL_NAME" = "_$1$MUA3:" "TT" = "LTA5004:" "SYS$INPUT" = "_$65$DUA6:" "SYS$INPUT" = "_CLAWS$LTA5004:" "SYS$ERROR" = "21C00303.LOG" "SYS$ERROR" = "_CLAWS$LTA5004:" "ERROR_FILE" = "_$65$DUA6" |
The CLUE PROCESS/LOGICAL command displays logical names for each running process.
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SDA> CLUE PROCESS/RECALL Process DCL Recall Buffer: -------------------------- Index Command 1 ana/sys 2 @login 3 mc sysman io auto /log 4 show device d 5 sea <.x>*.lis clue$ 6 tpu <.x>*0914.lis 7 sh log *hsj* 8 xd <.x>.lis 9 mc ess$ladcp show serv 10 tpu clue_cmd.cld 11 ana/sys |
The CLUE PROCESS/RECALL command displays a listing of the DCL commands that have been executed most recently.
Displays the active register for the crash CPU. The CLUE REGISTER is valid only when analyzing crash dumps.
CLUE REGISTER
None.
None.
The CLUE REGISTER command displays the active register of the crash CPU. It also identifies any known data structures, symbolizes any system virtual addresses, interprets the processor status (PS), and attempts to interpret R0 as a condition code.
SDA>CLUE REGISTER Saved Register Set for CPU 00: ------------------------------ R0 00000000.00000212 %SYSTEM-E-RESULTOVF, resultant string overflow R1 FFFFFFFF.80E03CC0 DDB R2 FFFFFFFF.97F814B0 R3 FFFFFFFF.98443A40 SYS$PMDRIVER+13A40 R4 FFFFFFFF.97F814C4 R5 00000000.0036106E R6 FFFFFFFF.97F814BA R7 00000000.00000000 R8 00000000.00000200 R9 FFFFFFFF.80D2F670 SCS_PDT R10 FFFFFFFF.80D2F670 SCS_PDT R11 FFFFFFFF.80E03E80 UCB (Device PMA0:) R12 FFFFFFFF.97F814B0 R13 FFFFFFFF.80E024E8 R14 00000000.00000000 R15 FFFFFFFF.97F81478 R16 00000000.00361090 R17 FFFFFFFF.80D2F670 SCS_PDT R18 FFFFFFFF.80E03E80 UCB (Device PMA0:) R19 FFFFFFFF.97F814BA R20 FFFFFFFF.979D31D8 R21 00000000.000000E0 R22 00000000.00000020 R23 00000000.005AF060 R24 00000000.12340004 AI 00000000.00000003 RA FFFFFFFF.9843BFFC SYS$PMDRIVER+0BFFC PV FFFFFFFF.98443A40 SYS$PMDRIVER+13A40 R28 FFFFFFFF.9843BFCC SYS$PMDRIVER+0BFCC FP 00000000.7FFA1AF0 PC FFFFFFFF.9843C568 SYS$PMDRIVER+0C568 PS 30000000.00000804 Kernel Mode, IPL 8, Interrupt |
Displays the scatter-gather map.
CLUE SG [/CRAB=address]
None.
/CRAB=address
Displays the ringbuffer for the specified Counted Resource Allocation Block (CRAB). The default action is to display the ringbuffer for all CRABs.
CLUE SG decodes and displays the scatter/gather ringbuffer entries.
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Identifies and displays the current stack. Use the SDA command SHOW STACK to display and decode the whole stack for the more common bugcheck types.
CLUE STACK
None.
None.
The CLUE STACK command identifies and displays the current stack together with the upper and lower stack limits. In case of a FATALEXCPT, INVEXCEPTN, SSRVEXCEPT, UNXSIGNAL, or PGFIPLHI bugcheck, CLUE STACK tries to decode the whole stack.
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SDA> CLUE STACK Stack Decoder: -------------- Normal Process Kernel Stack: Stack Pointer FFFFFFFF.7FF91D58 Stack Limits (low) FFFFFFFF.7FF90000 (high) FFFFFFFF.7FF92000 |
CLUE STACK identifies and displays the current stack together with the upper and lower stack limits.
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SDA> CLUE STACK Stack Decoder: -------------- Normal Process Kernel Stack: Stack Pointer 00000000.7FFA1C98 Stack Limits (low) 00000000.7FFA0000 (high) 00000000.7FFA2000 SSRVEXCEPT Stack: ----------------- Stack Pointer SP => 00000000.7FFA1C98 Information saved by Bugcheck: a(Signal Array) 00000000.7FFA1C98 00000000.00000000 EXE$EXCPTN[E] Temporary Storage: EXE$EXCPTN[E] Stack Frame: PV 00000000.7FFA1CA0 FFFFFFFF.829CF010 EXE$EXCPTN Entry Point FFFFFFFF.82A21000 EXE$EXCPTN_C return PC 00000000.7FFA1CA8 FFFFFFFF.82A2059C SYS$CALL_HANDL_C+0002C saved R2 00000000.7FFA1CB0 00000000.00000000 saved FP 00000000.7FFA1CB8 00000000.7FFA1CD0 SYS$CALL_HANDL Temporary Storage: 00000000.7FFA1CC0 FFFFFFFF.829CEDA8 SYS$CALL_HANDL 00000000.7FFA1CC8 00000000.00000000 SYS$CALL_HANDL Stack Frame: PV 00000000.7FFA1CD0 FFFFFFFF.829CEDA8 SYS$CALL_HANDL Entry Point FFFFFFFF.82A20570 SYS$CALL_HANDL_C 00000000.7FFA1CD8 00000000.00000000 return PC 00000000.7FFA1CE0 FFFFFFFF.82A1E930 CHF_REI+000DC saved FP 00000000.7FFA1CE8 00000000.7FFA1F40 Fixed Exception Context Area: Linkage Pointer 00000000.7FFA1CF0 FFFFFFFF.80C63780 EXCEPTION_MON_NPRW+06D80 a(Signal Array) 00000000.7FFA1CF8 00000000.7FFA1EB8 a(Mechanism Array) 00000000.7FFA1D00 00000000.7FFA1D40 a(Exception Frame) 00000000.7FFA1D08 00000000.7FFA1F00 Exception FP 00000000.7FFA1D10 00000000.7FFA1F40 Unwind SP 00000000.7FFA1D18 00000000.00000000 Reinvokable FP 00000000.7FFA1D20 00000000.00000000 Unwind Target 00000000.7FFA1D28 00000000.00020000 SYS$K_VERSION_04 #Sig Args/Byte Cnt 00000000.7FFA1D30 00000005.00000250 BUG$_NETRCVPKT a(Msg)/Final Status 00000000.7FFA1D38 829CE050.000008F8 BUG$_SEQ_NUM_OVF Mechanism Array: Flags/Arguments 00000000.7FFA1D40 00000000.0000002C a(Establisher FP) 00000000.7FFA1D48 00000000.7AFFBAD0 reserved/Depth 00000000.7FFA1D50 FFFFFFFF.FFFFFFFD a(Handler Data) 00000000.7FFA1D58 00000000.00000000 a(Exception Frame) 00000000.7FFA1D60 00000000.7FFA1F00 a(Signal Array) 00000000.7FFA1D68 00000000.7FFA1EB8 saved R0 00000000.7FFA1D70 00000000.00020000 SYS$K_VERSION_04 saved R1 00000000.7FFA1D78 00000000.00000000 saved R16 00000000.7FFA1D80 00000000.00020004 UCB$M_NI_PRM_MLT+00004 saved R17 00000000.7FFA1D88 00000000.00010050 SYS$K_VERSION_16+00010 saved R18 00000000.7FFA1D90 FFFFFFFF.FFFFFFFF saved R19 00000000.7FFA1D98 00000000.00000000 saved R20 00000000.7FFA1DA0 00000000.7FFA1F50 saved R21 00000000.7FFA1DA8 00000000.00000000 saved R22 00000000.7FFA1DB0 00000000.00010050 SYS$K_VERSION_16+00010 saved R23 00000000.7FFA1DB8 00000000.00000000 saved R24 00000000.7FFA1DC0 00000000.00010051 SYS$K_VERSION_16+00011 saved R25 00000000.7FFA1DC8 00000000.00000000 saved R26 00000000.7FFA1DD0 FFFFFFFF.8010ACA4 AMAC$EMUL_CALL_NATIVE_C+000A4 saved R27 00000000.7FFA1DD8 00000000.00010050 SYS$K_VERSION_16+00010 saved R28 00000000.7FFA1DE0 00000000.00000000 FP Regs not valid [...............] a(Signal64 Array) 00000000.7FFA1EA0 00000000.7FFA1ED0 SP Align = 10(hex) [...............] Signal Array: Arguments 00000000.7FFA1EB8 00000005 Condition 00000000.7FFA1EBC 0000000C Argument #2 00000000.7FFA1EC0 00010000 LDRIMG$M_NPAGED_LOAD Argument #3 00000000.7FFA1EC4 00000000 Argument #4 00000000.7FFA1EC8 00030078 SYS$K_VERSION_01+00078 Argument #5 00000000.7FFA1ECC 00000003 64-bit Signal Array: Arguments 00000000.7FFA1ED0 00002604.00000005 Condition 00000000.7FFA1ED8 00000000.0000000C Argument #2 00000000.7FFA1EE0 00000000.00010000 LDRIMG$M_NPAGED_LOAD Argument #3 00000000.7FFA1EE8 00000000.00000000 Argument #4 00000000.7FFA1EF0 00000000.00030078 SYS$K_VERSION_01+00078 Argument #5 00000000.7FFA1EF8 00000000.00000003 Interrupt/Exception Frame: saved R2 00000000.7FFA1F00 00000000.00000003 saved R3 00000000.7FFA1F08 FFFFFFFF.80C63460 EXCEPTION_MON_NPRW+06A60 saved R4 00000000.7FFA1F10 FFFFFFFF.80D12740 PCB saved R5 00000000.7FFA1F18 00000000.000000C8 saved R6 00000000.7FFA1F20 00000000.00030038 SYS$K_VERSION_01+00038 saved R7 00000000.7FFA1F28 00000000.7FFA1FC0 saved PC 00000000.7FFA1F30 00000000.00030078 SYS$K_VERSION_01+00078 saved PS 00000000.7FFA1F38 00000000.00000003 IPL INT CURR PREV SP Align = 00(hex) [...............] 00 0 Kern User Stack Frame: PV 00000000.7FFA1F40 00000000.00010050 SYS$K_VERSION_16+00010 Entry Point 00000000.00030060 SYS$K_VERSION_01+00060 00000000.7FFA1F48 00000000.00010000 LDRIMG$M_NPAGED_LOAD return PC 00000000.7FFA1F50 FFFFFFFF.8010ACA4 AMAC$EMUL_CALL_NATIVE_C+000A4 saved FP 00000000.7FFA1F58 00000000.7FFA1F70 Stack (not decoded): 00000000.7FFA1F60 00000000.00000001 00000000.7FFA1F68 FFFFFFFF.800EE81C RM_STD$DIRCACHE_BLKAST_C+005AC Stack Frame: PV 00000000.7FFA1F70 FFFFFFFF.80C6EBA0 EXE$CMKRNL Entry Point FFFFFFFF.800EE6C0 EXE$CMKRNL_C 00000000.7FFA1F78 00000000.829CEDE8 EXE$SIGTORET 00000000.7FFA1F80 00010050.00000002 00000000.7FFA1F88 00000000.00020000 SYS$K_VERSION_04 00000000.7FFA1F90 00000000.00030000 SYS$K_VERSION_01 return PC 00000000.7FFA1F98 FFFFFFFF.800A4D64 __RELEASE_LDBL_EXEC_SERVICE+00284 saved R2 00000000.7FFA1FA0 00000000.00000003 saved R4 00000000.7FFA1FA8 FFFFFFFF.80D12740 PCB saved R13 00000000.7FFA1FB0 00000000.00010000 LDRIMG$M_NPAGED_LOAD saved FP 00000000.7FFA1FB8 00000000.7AFFBAD0 Interrupt/Exception Frame: saved R2 00000000.7FFA1FC0 00000000.7FFCF880 MMG$IMGHDRBUF+00080 saved R3 00000000.7FFA1FC8 00000000.7B0E9851 saved R4 00000000.7FFA1FD0 00000000.7FFCF818 MMG$IMGHDRBUF+00018 saved R5 00000000.7FFA1FD8 00000000.7FFCF938 MMG$IMGHDRBUF+00138 saved R6 00000000.7FFA1FE0 00000000.7FFAC9F0 saved R7 00000000.7FFA1FE8 00000000.7FFAC9F0 saved PC 00000000.7FFA1FF0 FFFFFFFF.80000140 SYS$CLREF_C saved PS 00000000.7FFA1FF8 00000000.0000001B IPL INT CURR PREV SP Align = 00(hex) [...............] 00 0 User User |
CLUE STACK displays and decodes the current stack if it is one of the more popular and known bugcheck types. In this case, CLUE STACK trys to decode the whole INVEXCEPTN stack.
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