[Xen-bugs] [Bug 579] New: Xen console breaks if CONFIG_PNPACPI is set in dom0

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=579

           Summary: Xen console breaks if CONFIG_PNPACPI is set in dom0
           Product: Xen
           Version: unstable
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Guest-OS
        AssignedTo: xen-bugs@xxxxxxxxxxxxxxxxxxx
        ReportedBy: jmorris@xxxxxxxxxx


If CONFIG_PNPACPI is enabled in the dom0 kernel, the xen serial console breaks.
 Output works, but input does not.  /proc/interrupts shows no interrupts
received for the console device.

Our kernels ship with this enabled and it appears to affect every machine.

There is a workaround, add pnpacpi=off to the kernel command line.

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