Conference mvblab::sable

2511.0. "Help - STRAY Interrupt" by BRADEC::PODOLINSKY (Peter Podolinsky - MCS Slovakia) Thu Feb 06 1997 03:37

Hello all,

We have run into a problem with a stray interrupt.
I am running out of gas and the problem persists.

Problem:

We have upgraded the AS2100 RM system to become a memeber of TruCluster (=MC) System.
The upgrade included a swap of I/O module, since it was not at a supported HW rev.
By the end of installation we have noticed a message:

					ace0 at eisa0
                                        stray interrupt unit=1, iunit=0
                                        ace1 at eisa0

This appears during almost every boot sequence.
As a result (my gess) the console port COM1 is frozen, I can not use it for a hard wired VTXXX terminal.
When the message is not displayed, (rare, but happens) all works fine.
So far we have swapped almost everything except the EISA/PCI backplane and the CBUS Main board.
Problem persists. We have pulled out the MC card, KZPSA controllers, no change.

Please, could someone point us into the right direction ?

Meny thanks,
		
		Peter


The boot seq. follows:
*************************************************************************************************
*************************************************************************************************

DECevent V2.1


******************************** ENTRY    1 ********************************


Logging OS                        2. Digital UNIX
System Architecture               2. Alpha
Event sequence number             0.
Timestamp of occurrence              29-JAN-1997 11:28:35
Host name                            jastrab

System type register      x00000009  AlphaServer 2x00
Number of CPUs (mpnum)    x00000001
CPU logging event (mperr) x00000000

Event validity                    1. O/S claims event is valid
Event severity                    5. Low Priority
Entry type                      300. Start-Up ASCII Message Type

SWI Minor class                   9. ASCII Message
SWI Minor sub class               3. Startup

ASCII Message
    PCXAL keyboard, language English (American)

    Alpha boot: available memory from 0xecc000 to 0x13ffe000
    Digital UNIX V3.2E-1 (Rev. 47); Fri Dec 27 11:09:17 MET 1996
    physical memory = 320.00 megabytes.
    available memory = 305.26 megabytes.
    using 1221 buffers containing 9.53 megabytes of memory
    Firmware revision: 4.5
    PALcode: OSF version 1.45
    ibus0 at nexus
    AlphaServer 2100 4/200    tu0: DECchip 21040-AA: Revision: 2.3
    tu0 at pci0 slot 0
    tu0: DEC TULIP Ethernet Interface, hardware address: 08-00-2B-E2-7A-49
    tu0: console mode: selecting AUI (10Base5) port
    psiop0 at pci0 slot 1
    Loading SIOP: script 1001a00, reg 81111000, data 40737928
    scsi0 at psiop0 slot 0
    rz5 at scsi0 bus 0 target 5 lun 0 (DEC     RRD43   (C) DEC  1084)
    tz4 at scsi0 bus 0 target 4 lun 0 (SONY    SDT-7000         0148)
    eisa0 at pci0
    ace0 at eisa0
    stray interrupt unit=1, iunit=0
    ace1 at eisa0
    lp0 at eisa0
    fdi0 at eisa0
    fd0 at fdi0 unit 0
    Initializing xcr0.  Please wait.
    Initializing xcr0.  Please wait.
    Initializing xcr0.  Please wait.
    Initializing xcr0.  Please wait.
    Initializing xcr0.  Please wait.
    xcr0 at eisa0
    re0 at xcr0 unit 0 (unit status = ONLINE, raid level = JBOD)
    re1 at xcr0 unit 1 (unit status = ONLINE, raid level = JBOD)
    re2 at xcr0 unit 2 (unit status = ONLINE, raid level = JBOD)
    vga0 at eisa0
     1024x768 (QVision )
    tu1: DECchip 21040-AA: Revision: 2.3
    tu1 at eisa0
    tu1: DEC TULIP Ethernet Interface, hardware address: 08-00-2B-94-AC-34
    tu1: auto sensing: selected BNC (10Base2) port: no carrier
    MC: probing Rev 11 unit 0 Board #1
        Adapter is in pci bus 0, slot 6
    MC: Rev 11 unit 0 board #1 is primary adapter
    Memory Channel jumpered as VH1 (connect to virtual hub) mode
    rmspur0 at pci0 slot 6
    pza0 at pci0 slot 7
    pza0 firmware version: DEC  P01  A10
    scsi16 at pza0 slot 0
    cpu 0 EV-4s 1mb b-cache
    gpc0 at ibus0
    pci0 at ibus0 slot 0
    rz129 at scsi16 bus 16 target 1 lun 0 (DEC     RZ28D    (C) DEC 0008)
    rz130 at scsi16 bus 16 target 2 lun 0 (DEC     RZ28D    (C) DEC 0008)
    rz131 at scsi16 bus 16 target 3 lun 0 (DEC     RZ28D    (C) DEC 0008)
    rz132 at scsi16 bus 16 target 4 lun 0 (DEC     RZ28D    (C) DEC 0008)
    rz133 at scsi16 bus 16 target 5 lun 0 (DEC     RZ28D    (C) DEC 0008)
    dli: configured
    SuperLAT. Copyright 1993 Meridian Technology Corp. All rights reserved.
    clubase: configured
    Cluster Memory Channel primary adapter is online.
        Rev 11 adapter is the primary channel (pci bus 0, slot 6)
        connected to a virtual hub (VH1) as node 1.
    skipping test/delay for VH0/VH1 system
    drd: configured.
    dlmsl: configured
    cnxagent: configured
    dlm: configured.



******************************** ENTRY    2 ********************************
****************************************************************************
				END

The driver's interrupt handler was called and when looking at the interrupt
mask there was no reason for the interrupt. Have you checked to verify that
there are not IRQ conflicts? Although the fact that it works sometimes and
not others would indicate that there may be a piece of faulty hardware
on the system.

							--dennis
[Posted by WWW Notes gateway]

I've seen this before when the wrong ECU has been run.  Make sure to run the
OpenVMS/Digital UNIX ECU, not the Windows NT ECU.

stephen

Hi,

I am sure that we are using UNIX ECU.
Current status is:
When we deinstall DE425 NI Card, the message goes away.
We have tried to replace DE425. No change, problem remains.
We have moved the NI Card to other EISA slot, no change.
We have upgraded to latest FW ( from V3.8 CDROM) and used V1.10 ECU (UNIX) floppy. No change,
stray interrupt remains there.

Any hint, comment ?

Regards,	
	Peter

    Hi,
    
    The problem with stray interrup is away.
    We used old version ADEC4250.CFG from ECU 1.8 and system
    work properly. CFG file for DE425 is different in ECU 1.8, 1.9 and
    1.10. These differences was reason for "stray interrup"
    
    
    Regards
    
    
    Emil