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[Bug 1000054] New: Interrupt controller hangs on XEON processors


http://bugs.ecos.sourceware.org/show_bug.cgi?id=1000054

           Summary: Interrupt controller hangs on XEON processors
           Product: eCos
           Version: 2.0
          Platform: pc (i386 PC target)
        OS/Version: HostOS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: normal
         Component: Other
        AssignedTo: jifl@ecoscentric.com
        ReportedBy: Kevin_Lemay@agilent.com
         QAContact: ecos-bugs@sources.redhat.com


After successfully porting my driver to eCos on a 700MZ pentium 3, I attempted
to run it on a newer XEON 2.4GZ to collect performance metrics.

The XEON system consistently hung. Using the debugger, I was able to verify that
enabling the interrupt for the HBA was the trigger for the system hang.

When I modified the driver to poll the hardware (no hardware interrupts), it
runs on the XEON.

There appears to be an incompatibility between the i386 BSP and the newer XEON
processors.

Target platform:
Supermicro P4D-PL-M
Single 2.4 Ghz XEON 
(hyperthreading disabled)



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