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Conference vaxaxp::vmsnotes

Title:	VAX and Alpha VMS
Notice:	This is a new VMSnotes, please read note 2.1
Moderator:	VAXAXP::BERNARDO

Created:	Wed Jan 22 1997
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	703
Total number of notes:	3722

693.0. "Double deallocation of memory block" by MLNCSC::DOMANESCHI () Thu Jun 05 1997 10:39

	Hello,

  customer's Alpha crashes one time at day, i have enclosed the CLUE
  have you any advice?


OpenVMS (TM) Alpha System dump analyzer

Dump taken on  3-JUN-1997 09:38:03.41
DOUBLDEALO, Double deallocation of memory block

SDA> clue crash

Crashdump Summary Information:
------------------------------
Crash Time:         3-JUN-1997 09:38:03.41
Bugcheck Type:     DOUBLDEALO, Double deallocation of memory block
Node:              ERSISB  (Clustered)
CPU Type:          AlphaServer 1000A 4/233
VMS Version:       V6.2-1H3
Current Process:   NULL
Current Image:     <not available>
Failing PC:        FFFFFFFF 8001A270
Failing PS:        38000000 00000B04
Module:            SYSTEM_PRIMITIVES_MIN                  
Offset:            00006270

Boot Time:          3-JUN-1997 07:54:39.00
System Uptime:               0 01:43:24.41
Crash/Primary CPU: 00/00
Saved Processes:   31
Pagesize:          8 KByte (8192 bytes)
Physical Memory:   160 MByte (20480 PFNs)
Dumpfile Pagelets: 138794 blocks
Dump Flags:        olddump,writecomp,errlogcomp,dump_style
EXE$GL_FLAGS:      poolpging,init,bugdump

Stack Pointers:
KSP = FFFFFFFF 833D3BF8   ESP = FFFFFFFF 872DF000   SSP = FFFFFFFF 872D9000
USP = FFFFFFFF 872D9000

General Registers:
R0  = FFFFFFFF 80FDB000   R1  = 00000000 00000140   R2  = FFFFFFFF 80FDAEC0
R3  = FFFFFFFF 80FDB100   R4  = FFFFFFFF 80FDB140   R5  = FFFFFFFF 83325D20
R6  = 00000000 00000008   R7  = FFFFFFFF 83324248   R8  = 00000000 00000140
R9  = 00000000 00000005   R10 = FFFFFFFF 83304D98   R11 = FFFFFFFF 83304D98
R12 = 00000000 00000008   R13 = 00000000 00000000   R14 = FFFFFFFF 83304200
R15 = 00000000 00000001   R16 = 00000000 00000114   R17 = FFFFFFFF FFFFFFC0
R18 = 00000000 00000001   R19 = 00000000 00000080   R20 = FFFFFFFF 833244C8
R21 = 003B0100 0C2007F0   R22 = FFFFFFFF 80CAFB80   R23 = 00000000 00000140
R24 = FFFFFFFF 80D315C0   AI  = 00000000 00000001   RA  = FFFFFFFF 8001B85C
PV  = FFFFFFFF 833259A0   R28 = 00000000 00000001   FP  = FFFFFFFF 833D3F48
PC  = FFFFFFFF 8001A274   PS  = 38000000 00000B04



System Registers:
Page Table Base Register (PTBR)                           00000000 000000A4
Processor Base Register (PRBR)                            FFFFFFFF 80CAE000
Privileged Context Block Base (PCBB)                      00000000 008AE080
System Control Block Base (SCBB)                          00000000 00000153
Software Interrupt Summary Register (SISR)                00000000 00000000
Address Space Number (ASN)                                00000000 00000000
AST Summary / AST Enable (ASTSR_ASTEN)                    00000000 00000000
Floating-Point Enable (FEN)                               00000000 00000000
Interrupt Priority Level (IPL)                            00000000 0000000B
Machine Check Error Summary (MCES)                        00000000 00000008
Virtual Page Table Base Register (VPTB)                   00000002 00000000


Failing Instruction:
EXE$DEALLOCATE_C+00110:  	BUGCHK

Instruction Stream (last 20 instructions):
EXE$DEALLOCATE_C+000C0:  	STL		R25,(R2)
EXE$DEALLOCATE_C+000C4:  	BIS		R31,R31,R31
EXE$DEALLOCATE_C+000C8:  	STL		R1,#X0004(R0)
EXE$DEALLOCATE_C+000CC:  	LDQ		R3,(SP)
EXE$DEALLOCATE_C+000D0:  	ADDQ		SP,#X08,SP
EXE$DEALLOCATE_C+000D4:  	SRA		R3,#X20,R4
EXE$DEALLOCATE_C+000D8:  	ADDL		R31,R3,R3
EXE$DEALLOCATE_C+000DC:  	LDQ		R3,(SP)
EXE$DEALLOCATE_C+000E0:  	LDQ		R4,#X0008(SP)
EXE$DEALLOCATE_C+000E4:  	ADDQ		SP,#X10,SP
EXE$DEALLOCATE_C+000E8:  	RET		R31,(R26)
EXE$DEALLOCATE_C+000EC:  	LDQ_U		R31,(SP)
EXE$DEALLOCATE_C+000F0:  	SUBQ		SP,#X10,SP
EXE$DEALLOCATE_C+000F4:  	STQ		R16,#X0008(SP)
EXE$DEALLOCATE_C+000F8:  	STQ		R17,(SP)
EXE$DEALLOCATE_C+000FC:  	LDQ		R17,#X0010(R27)
EXE$DEALLOCATE_C+00100:  	BIS		R17,#X04,R17
EXE$DEALLOCATE_C+00104:  	BIS		R31,R17,R16
EXE$DEALLOCATE_C+00108:  	LDQ		R17,(SP)
EXE$DEALLOCATE_C+0010C:  	ADDQ		SP,#X08,SP
EXE$DEALLOCATE_C+00110:  	BUGCHK
EXE$DEALLOCATE_C+00114:  	HALT
EXE$DEALLOCATE_C+00118:  	LDL		R28,(SP)
EXE$DEALLOCATE_C+0011C:  	SUBL		R2,#X04,R2
EXE$DEALLOCATE_C+00120:  	SUBQ		R2,R28,R17
Thanks in advance.

                       Paolo

T.R Title User Personal
Name Date Lines

693.1 CANASTA and COMET, Then IPMT... XDELTA::HOFFMAN Steve, OpenVMS Engineering Thu Jun 05 1997 10:44 7

T.R	Title	User	Personal Name	Date	Lines
693.1	CANASTA and COMET, Then IPMT...	XDELTA::HOFFMAN	Steve, OpenVMS Engineering	`Thu Jun 05 1997 10:44`	7
	Assuming you have ruled out any kernel-mode non-DIGITAL software, run the dump through CANASTA (see 233.*), and see what it says. You'll want to try a COMET search (http://comet.alf.dec.com/). And if CANASTA does not match this problem and COMET shows no previous reports, then elevate it via IPMT -- provide a copy of the system dump file with the IPMT.

   Assuming you have ruled out any kernel-mode non-DIGITAL software,
   run the dump through CANASTA (see 233.*), and see what it says.
   You'll want to try a COMET search (http://comet.alf.dec.com/).
   And if CANASTA does not match this problem and COMET shows no
   previous reports, then elevate it via IPMT -- provide a copy of
   the system dump file with the IPMT.