Lost HW-INTERRUPTS Running NOVELL NetWare 3.12


Subject: LOST HARDWARE INTERRUPTS RUNNING NOVELL NETWARE 3.12

New PC Server/Netfinity server RETAIN TIP:

     Record number:       H162440
     Device:              D/T8640
     Model:               M
     Hit count:           UHC00000
     Success count:       USC0000
     Publication code:    PC50
     Tip key:
     Date created:        O98/01/07
     Date last altered:   A98/01/15
     Owning B.U.:         USA


Abstract: LOST HARDWARE INTERRUPTS RUNNING NOVELL NETWARE 3.12

SYMPTOM:

The NetWare Server Console displays the message - "Secondary Hardware Interrupt Controller detected a lost hardware Interrupt"

Some examples include: when a Windows 95 Client try's to run applications from the Server, or when a large file copy occurs to or from the Server over the Network.

PROBLEM ISOLATION AIDS:



FIX:

Eliminate use of Interrupt 15 by Adapters/Controllers. Depending on the Server, this may require allocating another Secondary Interrupt to a slot that was previously set to "automatic", or to a adapter / controller that was previously set to Interrupt 15, or reserve Interrupt 15 so that no devices will use it.

NOTE: At this time, Only the PC Server 300 assigns one Interrupt to the entire PCI Bus. The latest Version BIOS for that server defaults the PCI Bus assignment to Interrupt 15.

Refer to the users manual for the Server on information about Interrupt settings / assignments.

Detail:

This error may appear due to a load applied to any adapter that is using Interrupt 15.

NetWare uses IRQ15 (Interrupt 15) to process lost Interrupts. In some situations, setting a Adapter / Controller to use IRQ15 will cause conflicts. For more information, see the NetWare troubleshooting Tip# 21620 located at the NetWare Website.

NetWare is a trademark of Novell, Inc.
Windows 95 is a trademark of Microsoft Corporation.


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