AcpiExecSingleCPU: Spinlock is not released

[Lars Erdmann]

src\acpi\psd\acpicpu.c, routine "AcpiExecSingleCPU":

around line: 802
if (ExeFlag & SMPEXEC_IPITIME), a CPU spinlock is aquired, then the user function executed but the CPU spinlock is not released thereafter.
I believe the code should be corrected to read:

    if (ExeFlag & SMPEXEC_IPITIME)
    {
        while ( __lxchg((volatile int*)&CPULock, 1) );     // Wait if we are here
        CPUMask &= (~(1 << pPSDPLMA->procnum)); // Clear bit, this CPU was execute
        Status = Execute ( (void *)Context );                 // call function
        __lxchg((volatile int*)&CPULock, 0) ;                // give way to next CPU -> ADD THIS !
        return Status;
    }

[Lars Erdmann]

Is now incorporated into trunk.

[David Azarewicz]

Milestone eCS 2.x deleted