Re: Is: 0xCF8 on extended config space instead of MCONF? Was:Re: IBM HS20 Xen 4.1 and 4.2 Critical Interrupt - Front panel NMI crash

[Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>]

On Fri, Oct 04, 2013 at 06:31:37PM +0200, Trenta sis wrote:
> Hi,
> 
> With Xen 4.0 kernel used was 2.6.32, default kernel Debain 6 (Squeeze)
> Thanks

So if you swap either kernel or hypervisor do you see this? Meaning
if you run with Xen 4.2 + 2.6.32 or Xen 4.0 + current kernel.

> 
> 2013/9/30 Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
> 
> > > Hdlr: 00151743 HI Fatal Error, HI_FERR/NERR Value= 0020
> > > 27 I Blade_09 09/08/13 13:25:17 0x806f0013 Chassis, (NMI State)
> > diagnostic
> > > interrupt
> > > 28 E Blade_09 09/08/13 13:25:12 0x10000002 SMI Hdlr: 00151743 HI Fatal
> > > Error, HI_FERR/NERR Value= 0020
> >
> > Doing a simple Google search on HI_FERR tells me that it is:
> >
> >
> > http://www.intel.com/content/dam/doc/datasheet/e7525-memory-controller-hub-datasheet.pdf
> >
> > and that
> > 3.6.14 HI_FERR – Hub Interface First Error Register (D0:F1)
> >
> > has something in it. The value is 0020 (is that decimal or hex?). If it is
> > decimal it is then 10100, which is bit 2 and 4:
> >
> > bit 2:
> >
> > HI Internal Parity Error Detected. This bit is sticky through reset. System
> > software clears this bit by writing a ‘1’ to the location.
> > 0 = No Internal Parity error detected.
> > 1 = MCH HI bridge has detected an Internal Parity error. Non-fatal.
> >
> > and bit 4:
> > HI Data Parity Error Detected. This bit is sticky through reset. System
> > software
> > clears this bit by writing a ‘1’ to the location.
> > 0 = No HI data parity error.
> > 1 = MCH has detected a parity error on the data phase of a HI transaction.
> >
> >
> >
> > But that is unlikely as these are 'non-fatal'. So if this is hex, then it
> > would
> > be bit 5, which is:
> >
> > Enhanced Configuration Access Error. This bit is sticky through reset.
> > System
> > software clears this bit by writing a ‘1’ to the location.
> > 0 = No Enhanced Configuration Access error
> > 1 = A PCI Express* Enhanced Configuration access was mistakenly targeting
> > the legacy interface. Fatal
> >
> >
> > That sounds more like it. So we touched a PCIe Enhanced Configuration
> > (MMCONFIG?)
> > using the legacy interface (cf8?).
> >
> > Jan, any thoughts? Is there a particular bug-fix we are missing in Xen 4.1
> > or Xen 4.2
> > for this?  Xen 4.0 seems to work.
> >
> > Trenta,
> >
> > When you used Xen 4.0 did you use the same kernel as with Xen 4.1 or Xen
> > 4.2?
> >

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