panic: Machine check - Hardware error

From: Christophe Colle <colle_at_krtkg1.rug.ac.be>
Date: Tue, 26 Dec 1995 01:33:58 +0100 (MET)

Dear Managers,

I'm getting sick of those Hardware errors. We have had those a several
times already. Digital replaced almost every hardware component from this
alpha 3000-300X machine.

They informed us that we had problems because we were using the J300
multimedia card. Apparently there is a problem when you use both sound
and video on this card in combination with the processor which we have.
The fact is that the machine crashed again, while noone was using the
card at this time.

So I would like to know if someone else has has had a similar problem and I
also want to know if someone could give me more info on what exactly the
problem is. That is, which part of the hardware fails. I include an
extract from the uerf.

Thanks,

Have a merry christmas and a happy new year all with less crashes as I
have :)


root_at_krtkg4> uerf -R -o full
********************************* ENTRY 1. *********************************

----- EVENT INFORMATION -----

EVENT CLASS OPERATIONAL EVENT
OS EVENT TYPE 300. SYSTEM STARTUP
SEQUENCE NUMBER 0.
OPERATING SYSTEM DEC OSF/1
OCCURRED/LOGGED ON Tue Dec 26 00:42:35 1995
OCCURRED ON SYSTEM krtkg4
SYSTEM ID x0007000F CPU TYPE: DEC
                                        CPU SUBTYPE: KN16AA
MESSAGE Alpha boot: available memory from
                                         _0x6bc000 to 0x4000000
                                        DEC OSF/1 V2.0 (Rev. 240); Wed Dec 13
                                         _21:27:08 MET 1995
                                        physical memory = 62.00 megabytes.
                                        available memory = 53.67 megabytes.
                                        using 238 buffers containing 1.85
                                         _megabytes of memory
                                        tc0 at nexus
                                        tcds0 at tc0 slot 4
                                        asc0 at tcds0 slot 0
                                        tz0 at asc0 bus 0 target 0 lun 0 (DEC
                                         _ TLZ07 (C)DEC 4BE0)
                                        rz3 at asc0 bus 0 target 3 lun 0 (DEC
                                         _ RZ26L (C) DEC 440C)
                                        ln0: DEC LANCE Module Name: PMAD-BA
                                        ln0 at tc0 slot 5
                                        ln0: DEC LANCE Ethernet Interface,
                                         _hardware address: 08-00-2b-bf-29-d8
                                        scc0 at tc0 slot 5
                                        bba0 at tc0 slot 5
                                        fb0 at tc0 slot 6
                                         1280X1024
                                        J300 video subsystem configured
                                        J300 audio subsystem configured
                                        av0 at tc0 slot 1
                                        DEC 3000 - M300X system
                                        Firmware revision: 6.0
                                        PALcode: OSF version 1.35
                                        lvm0: configured.
                                        lvm1: configured.

********************************* ENTRY 2. *********************************

----- EVENT INFORMATION -----

EVENT CLASS ERROR EVENT
OS EVENT TYPE 302. PANIC
SEQUENCE NUMBER 2.
OPERATING SYSTEM DEC OSF/1
OCCURRED/LOGGED ON Tue Dec 26 00:29:45 1995
OCCURRED ON SYSTEM krtkg4
SYSTEM ID x0007000F CPU TYPE: DEC
                                        CPU SUBTYPE: KN16AA
MESSAGE panic: Machine check - Hardware
error

********************************* ENTRY 3. *********************************

----- EVENT INFORMATION -----

EVENT CLASS ERROR EVENT
OS EVENT TYPE 100. CPU EXCEPTION
SEQUENCE NUMBER 1.
OPERATING SYSTEM DEC OSF/1
OCCURRED/LOGGED ON Tue Dec 26 00:29:45 1995
OCCURRED ON SYSTEM krtkg4
SYSTEM ID x0007000F CPU TYPE: DEC
                                        CPU SUBTYPE: KN16AA

----- UNIT INFORMATION -----

UNIT CLASS CPU

----- LEP MACHINE CHECK STACK FRAME -----

PROCESSOR OFFSET x00000110
SYSTEM OFFSET x000001A0
PALTEMP1 x0000000000000000
PALTEMP2 x001482F800000004
PALTEMP3 x0000000000000003
PALTEMP4 x0000000140094E31
PALTEMP5 x0000000000000000
PALTEMP6 x0000000000000011
PALTEMP7 x0000000000104000
PALTEMP8 x0000000000000000
PALTEMP9 x0000000000000008
PALTEMP10 xFFFFFC0000385EC8
PALTEMP11 x0000000000000000
PALTEMP12 xFFFFFC0000386190
PALTEMP13 xFFFFFC00003861C0
PALTEMP14 xFFFFFC0000386220
PALTEMP15 xFFFFFC0000386028
PALTEMP16 xFFFFFC0000385DE0
PALTEMP17 x0000000000000008
PALTEMP18 x000000011FFFEBC0
PALTEMP19 xFFFFFFFF90BF8000
PALTEMP20 xFFFFFC0000516E30
PALTEMP21 x0000000000000000
PALTEMP22 x6068686C7C7C7C7C
PALTEMP23 x00000060000007D6
PALTEMP24 x0000000000000000
PALTEMP25 x0000000000010000
PALTEMP26 x0000000000000000
PALTEMP27 x0000000000000000
PALTEMP28 x0000000000D5A000
PALTEMP29 xFFFFFFFC00000000
PALTEMP30 x0000000000000001
PALTEMP31 x0000000002BA2000
EXC_ADDR x0000000080308ADE
                                        EXCEPTING OR EXECUTING INSTRUCTION DID NOT COMPLETE PC IS xE00C22B7
EXC_SUM x0000000000000000
EXC_MSK x0000000000000000
ICCSR x0000000000000000
                                        PC0 INT ENABLED AFTER 2**16 EVENTS
                                        PC1 INT ENABLED AFTER 2**12 EVENTS
                                        PC0 COUNTER INPUT TOTAL ISSUES DIVIDED
                                         _BY 2
                                        PC1 COUNTER INPUT DCACHE MISSES
                                        FP INSTRUCTIONS CAUSE FEN EXCEPTIONS
                                        ADDRESS SPACE NUMBER = x0
PAL_BASE x0000000000060000
                                        BASE ADDRESS FOR PALCODE = x18
HIER x00000000000018F0
                                        CORRECTABLE READ ERROR INTERRUPT
                                         _ENABLED
                                        CPU HARDWARE INTERRUPT ENABLED ON PIN
                                         _3
                                        CPU HARDWARE INTERRUPT ENABLED ON PIN
                                         _4
                                        CPU HARDWARE INTERRUPT ENABLED ON PIN
                                         _5
                                        PC1 INTERRUPT DISABLED
                                        PC0 INTERRUPT DISABLED
                                        CPU HARDWARE INTERRUPT ENABLED ON PIN
                                         _1
                                        CPU HARDWARE INTERRUPT ENABLED ON PIN
                                         _2
HIRR x0000000000000000
MM_CSR x0000000000005030
                                        INTEGER REGISTER USED IS R 3.
                                        OP CODE = 28 - LDL
DC_STAT x0000000000000007
                                        DC_HIT LAST LOAD OR STORE MISSED
                                         _DCACHE
                                        OPCODE RA FIELD - INTEGER REGISTER IS R 0.
DC_ADDR x00000000FFFFFFFF SEO SECOND ERROR OCCURRED
ABOX_CTL x000000000000042E
                                        FUNCTIONS ENABLED - MCHECK ENABLED FOR
                                         _UNCORRECTABLE ERRORS
                                        FUNCTIONS ENABLED - CRD CORRECTED READ
                                         _DATA INTERRUPT ENABLED
                                        FUNCTIONS ENABLED - SINGLE ENTRY ICACHE
                                         _STREAM BUFFER ENABLED
                                        FUNCTIONS ENABLED - DCACHE ENABLED
BIU_STAT x0000000000001C40
                                        BIU_CMD CYCLE CLASS IS READ_BLOCK
                                        FILL_DPERR PRI. CACHE FILL FROM EXT.
                                         _CACHE HAD PARITY ERROR
                                        FILL_IRD ICACHE FILL BIU_ADDR x0000000002494AE0
                                        PHYSICAL ADDRESS OF CACHE BLOCK WITH ERROR IS x124A57
BIU_CTL x0000000010006345
                                        EXTERNAL CACHE DISABLED
                                        EXTERNAL CACHE ECC ENABLED
                                        EXTERNAL CACHE READ/WRITE SPEED IN CPU CYCLES IS
                                         _11
                                        EXTERNAL CACHE WRITE ENABLE TIMING BIT FIELD IS x4001
FILL_SYNDROME x0000000000000001 SINGLE BIT ERROR IS CHECK BIT 00
                                        SINGLE BIT ERROR IS NO ERRORS
FILL_ADDR x0000000002494AE0
                                        PHYSICAL ADDRESS OF QUADWORD WITH ERROR x124A57
VA x00000000001081E8 D-STREAM FAULT OR DTB MISS - VIRTUAL ADDRESS IS x1081E8
BC_TAG x0000000000002ED4
                                        D BIT - CACHE BLOCK DIRTY
                                        V BIT - CACHE BLOCK VALID
                                        TAG ADDRESS IS x176

----- KN16AA CPU SPECIFIC STACK FRAME -----

INT_EXC_IDENT x0000000000000092
                                        INTERRUPT OR EXCEPTION IS NONE
MCR_STAT x0000000040404040 BANK 0 8 MBYTES
                                        BANK 1 8 MBYTES
                                        BANK 2 8 MBYTES
                                        BANK 3 8 MBYTES
                                        BANK 4 8 MBYTES
                                        BANK 5 8 MBYTES
                                        BANK 6 8 MBYTES
                                        BANK 7 8 MBYTES
INTERRUPT REGISTER x0000000000000000
TC STATUS x0000000000000000
TC_CONFIG x0000000000000000 MAGIC # FOR DMA CONTROL IS x0
                                        PAGE SIZE IS 8KBYTES


     | \ =============================================================
     | \ Colle Christophe Phone: +32-(0)9-2403955
     +---- mail: colle_at_krtkg1.rug.ac.be http://krtkg1.rug.ac.be/~colle
     |
 ----------+ When I'm not in Ghent, Then I'm probably Sailing
  \________| ======= Radiotherapy Department, Ghent =============
Received on Tue Dec 26 1995 - 01:52:35 NZDT

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