[ros-bugs] [Bug 4600] New: HalpCalibrateStallExecution not implemented

[ReactOS.Bugzilla at www.reactos.org]

http://www.reactos.org/bugzilla/show_bug.cgi?id=4600

           Summary: HalpCalibrateStallExecution not implemented
           Product: ReactOS
           Version: TRUNK
          Platform: x86 Hardware
        OS/Version: ReactOS
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: Kernel
        AssignedTo: ros-bugs at reactos.org
        ReportedBy: netzimme at aim.com
         QAContact: ros-bugs at reactos.org


The function HalpCalibrateStallExecution() is not implemented and so
the internal tick count (Pcr->StallScaleFactor) for the function 
KeStallExecutionProcessor() is always the same. This can see in
HalInitializeProcessor() where Pcr->StallScaleFactor set to INITIAL_STALL_COUNT 
(64).

So KeStallExecutionProcessor() has difference runs on difference cpus.

In my case i have a 3Com 3c905CX TX-M network card. The driver try
to initialize in this way:

out ioport,value
KeStallExecutionProcessor(10)
in value,ioport
if (value != 0) return error

my test computer have a 1GHz CPU so that the tick count 64 is to fast. 
It should be ca. 500 to stall the cpu for 10 usec. Otherwise the ioport will
not toggled to the expected value for the driver.

The function HalpCalibrateStallExecution() was removed in rev. 24964 with
the comment that it will be implemented at a later moment :-)

Daniel Zimmermann


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