Re: [PATCH] powerpc/fsl: Add support for pci(e) machine check exception on E500MC / E5500

From: Jojy Varghese
Date: Tue Sep 30 2014 - 16:20:15 EST

On 9/30/14 1:17 PM, "Scott Wood" <scottwood@xxxxxxxxxxxxx> wrote:

>On Tue, 2014-09-30 at 20:15 +0000, Jojy Varghese wrote:
>> On 9/30/14 8:50 AM, "Guenter Roeck" <linux@xxxxxxxxxxxx> wrote:
>> >On Mon, Sep 29, 2014 at 06:31:06PM -0500, Scott Wood wrote:
>> >> Which specific chip and revision did you see this on? What is the
>> >> in MCSR?
>> >>
>> >Jojy can answer that, at least for P5020. We have seen it on P5040 as
>> >well,
>> >though, so it is not just limited to one chip/revision.
>> The specifics are:
>> PVR: 0x80240012
>> Instruction that causes the MC exception: lwbrx
>> The faulty load address is also present in RB. So we could change the
>> logic to use that
>> instead of DEAR. What I don¹t know is of there are other cases also
>> escapes the current logic.
>Could you find out what MCSR was when that happened? I'm most
>interested in whether MAV was set, but the other bits would be
>interesting as well.

MCSR=a000 ( Load Error Report)

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at