[powerpc/powervm]Oops: Kernel access of bad area, sig: 11 [#1] while running stress-ng

[Nicholas Piggin]

On Tue, 10 Jul 2018 11:58:40 +0530
vrbagal1 <vrbagal1 at linux.vnet.ibm.com> wrote:

> Hi,
> 
> Observing kernel oops on Power9(ZZ) box, running on PowerVM, while 
> running stress-ng.
> 
> 
> Kernel: 4.18.0-rc4
> Machine: Power9 ZZ (PowerVM)
> Test: Stress-ng
> 
> Attached is .config file
> 
> Traces:
> 
>   [12251.245209] Oops: Kernel access of bad area, sig: 11 [#1]

Can you post the lines above this? Otherwise we don't know what address
it tried to access (without decoding the instructions and reconstructing
it from registers at least, which the XFS devs wouldn't be inclined to
do).

And I assume there is nothing else relevant to XFS in the dmesg before
this?

Thanks,
Nick